Accton Technology SMC2555WA EliteConnect 2.4GHz/5GHz Wireless Access Point User Manual WA6102 17

Accton Technology Corp EliteConnect 2.4GHz/5GHz Wireless Access Point WA6102 17

Contents

User Manual

SMC2555W-AG
38 TeslaIrvine, CA 92618Phone: (949) 679-8000EliteConnect™ Universal2.4GHz/5GHz Wireless Access PointUser GuideThe easy way to make all your network connectionsSeptember 2003Revision Number: R01, F2.0.5
CopyrightInformation furnished by SMC Networks, Inc. (SMC) is believed to be accurate and reliable. However, no responsibility is assumed by SMC for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of SMC. SMC reserves the right to change specifications at any time without notice.Copyright © 2003 bySMC Networks, Inc.38 TeslaIrvine, CA 92618All rights reserved.Trademarks:SMC is a registered trademark; and EliteConnect are trademarks of SMC Networks, Inc. Other product and company names are trademarks or registered trademarks of their respective holders.
iLIMITED WARRANTYLimited Warranty Statement: SMC Networks, Inc. (“SMC”) warrants its products to be free from defects in workmanship and materials, under normal use and service, for the applicable warranty term. All SMC products carry a standard 90-day limited warranty from the date of purchase from SMC or its Authorized Reseller. SMC may, at its own discretion, repair or replace any product not operating as warranted with a similar or functionally equivalent product, during the applicable warranty term. SMC will endeavor to repair or replace any product returned under warranty within 30 days of receipt of the product. The standard limited warranty can be upgraded to a Limited Lifetime* warranty by registering new products within 30 days of purchase from SMC or its Authorized Reseller. Registration can be accomplished via the enclosed product registration card or online via the SMC Web site. Failure to register will not affect the standard limited warranty. The Limited Lifetime warranty covers a product during the Life of that Product, which is defined as the period of time during which the product is an “Active” SMC product. A product is considered to be “Active” while it is listed on the current SMC price list. As new technologies emerge, older technologies become obsolete and SMC will, at its discretion, replace an older product in its product line with one that incorporates these newer technologies. At that point, the obsolete product is discontinued and is no longer an “Active” SMC product. A list of discontinued products with their respective dates of discontinuance can be found at: http://www.smc.com/index.cfm?action=customer_service_warranty.All products that are replaced become the property of SMC. Replacement products may be either new or reconditioned. Any replaced or repaired product carries either a 30-day limited warranty or the remainder of the initial warranty, whichever is longer. SMC is not responsible for any custom software or firmware, configuration information, or memory data of Customer contained in, stored on, or integrated with any products returned to SMC pursuant to any warranty. Products returned to SMC should have any customer-installed accessory or add-on components, such as expansion modules, removed prior to returning the product for replacement. SMC is not responsible for these items if they are returned with the product.Customers must contact SMC for a Return Material Authorization number prior to returning any product to SMC. Proof of purchase may be required. Any product returned to SMC without a valid Return Material Authorization (RMA) number clearly marked on the outside of the package will be returned to customer at customer’s expense. For warranty claims within North America, please call our toll-free customer support number at (800) 762-4968.
LIMITED WARRANTYiiCustomers are responsible for all shipping charges from their facility to SMC. SMC is responsible for return shipping charges from SMC to customer.WARRANTIES EXCLUSIVE: IF AN SMC PRODUCT DOES NOT OPERATE AS WARRANTED ABOVE, CUSTOMER’S SOLE REMEDY SHALL BE REPAIR OR REPLACEMENT OF THE PRODUCT IN QUESTION, AT SMC’S OPTION. THE FOREGOING WARRANTIES AND REMEDIES ARE EXCLUSIVE AND ARE IN LIEU OF ALL OTHER WARRANTIES OR CONDITIONS, EXPRESS OR IMPLIED, EITHER IN FACT OR BY OPERATION OF LAW, STATUTORY OR OTHERWISE, INCLUDING WARRANTIES OR CONDITIONS OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. SMC NEITHER ASSUMES NOR AUTHORIZES ANY OTHER PERSON TO ASSUME FOR IT ANY OTHER LIABILITY IN CONNECTION WITH THE SALE, INSTALLATION, MAINTENANCE OR USE OF ITS PRODUCTS. SMC SHALL NOT BE LIABLE UNDER THIS WARRANTY IF ITS TESTING AND EXAMINATION DISCLOSE THE ALLEGED DEFECT IN THE PRODUCT DOES NOT EXIST OR WAS CAUSED BY CUSTOMER’S OR ANY THIRD PERSON’S MISUSE, NEGLECT, IMPROPER INSTALLATION OR TESTING, UNAUTHORIZED ATTEMPTS TO REPAIR, OR ANY OTHER CAUSE BEYOND THE RANGE OF THE INTENDED USE, OR BY ACCIDENT, FIRE, LIGHTNING, OR OTHER HAZARD.LIMITATION OF LIABILITY: IN NO EVENT, WHETHER BASED IN CONTRACT OR TORT (INCLUDING NEGLIGENCE), SHALL SMC BE LIABLE FOR INCIDENTAL, CONSEQUENTIAL, INDIRECT, SPECIAL, OR PUNITIVE DAMAGES OF ANY KIND, OR FOR LOSS OF REVENUE, LOSS OF BUSINESS, OR OTHER FINANCIAL LOSS ARISING OUT OF OR IN CONNECTION WITH THE SALE, INSTALLATION, MAINTENANCE, USE, PERFORMANCE, FAILURE, OR INTERRUPTION OF ITS PRODUCTS, EVEN IF SMC OR ITS AUTHORIZED RESELLER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OF IMPLIED WARRANTIES OR THE LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR CONSUMER PRODUCTS, SO THE ABOVE LIMITATIONS AND EXCLUSIONS MAY NOT APPLY TO YOU. THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, WHICH MAY VARY FROM STATE TO STATE. NOTHING IN THIS WARRANTY SHALL BE TAKEN TO AFFECT YOUR STATUTORY RIGHTS.* SMC will provide warranty service for one year following discontinuance from the active SMC price list. Under the limited lifetime warranty, internal and external power supplies, fans, and cables are covered by a standard one-year warranty from date of purchase.SMC Networks, Inc.38 TeslaIrvine, CA 92618
iiiCOMPLIANCESFederal Communication Commission Interference StatementThis equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one of the following measures:• Reorient or relocate the receiving antenna• Increase the separation between the equipment and receiver• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected• Consult the dealer or an experienced radio/TV technician for helpFCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.IMPORTANT NOTE:FCC Radiation Exposure StatementThis equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20 centimeters (8 inches) between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
COMPLIANCESivIndustry Canada - Class BThis digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus as set out in the interference-causing equipment standard entitled “Digital Apparatus,” ICES-003 of Industry Canada. Cet appareil numérique respecte les limites de bruits radioélectriques applicables aux appareils numériques de Classe B prescrites dans la norme sur le matérial brouilleur: “Appareils Numériques,” NMB-003 édictée par l’Industrie.EC Conformance Declaration - Class BSMC contact for these products in Europe is:SMC Networks Europe,Edificio Conata II,Calle Fructuós Gelabert 6-8, 2o, 4a,08970 - Sant Joan Despí,Barcelona, Spain.This information technology equipment complies with the requirements of the Council Directive 89/336/EEC on the Approximation of the laws of the Member States relating to Electromagnetic Compatibility and 73/23/EEC for electrical equipment used within certain voltage limits and the Amendment Directive 93/68/EEC. For the evaluation of the compliance with these Directives, the following standards were applied:RFI Emission:• Limit class B according to EN 55022:1998, IEC 60601-1-2 (EMC, medical)• Limit class B for harmonic current emission according to EN 61000-3-2/1995• Limitation of voltage fluctuation and flicker in low-voltage supply system according to EN 61000-3-3/1995Immunity: • Product family standard according to EN 55024:1998• Electrostatic Discharge according to EN 61000-4-2:1995 (Contact Discharge: ±4 kV, Air Discharge: ±8 kV)• Radio-frequency electromagnetic field according to EN 61000-4-3:1996 (80 - 1000 MHz with 1 kHz AM 80% Modulation: 3 V/m)• Electrical fast transient/burst according to EN 61000-4-4:1995 (AC/DC power supply: ±1 kV, Data/Signal lines: ±0.5 kV)• Surge immunity test according to EN 61000-4-5:1995 (AC/DC Line to Line: ±1 kV, AC/DC Line to Earth: ±2 kV)
COMPLIANCESvSafety ComplianceWichtige Sicherheitshinweise (Germany)1. Bitte lesen Sie diese Hinweise sorgfältig durch.2. Heben Sie diese Anleitung für den späteren Gebrauch auf.3. Vor jedem Reinigen ist das Gerät vom Stromnetz zu trennen. Verwenden Sie keine Flüssigoder Aerosolreiniger. Am besten eignet sich ein angefeuchtetes Tuch zur Reinigung.4. Die Netzanschlu ßsteckdose soll nahe dem Gerät angebracht und leicht zugänglich sein.5. Das Gerät ist vor Feuchtigkeit zu schützen.6. Bei der Aufstellung des Gerätes ist auf sicheren Stand zu achten. Ein Kippen oder Fallen könnte Beschädigungen hervorrufen.7. Die Belüftungsöffnungen dienen der Luftzirkulation, die das Gerät vor Überhitzung schützt. Sorgen Sie dafür, daß diese Öffnungen nicht abgedeckt werden.8. Beachten Sie beim Anschluß an das Stromnetz die Anschlußwerte.9. Verlegen Sie die Netzanschlußleitung so, daß niemand darüber fallen kann. Es sollte auch nichts auf der Leitung abgestellt werden.10.Alle Hinweise und Warnungen, die sich am Gerät befinden, sind zu beachten.11.Wird das Gerät über einen längeren Zeitraum nicht benutzt, sollten Sie es vom Stromnetz trennen. Somit wird im Falle einer Überspannung eine Beschädigung vermieden.12.Durch die Lüftungsöffnungen dürfen niemals Gegenstände oder Flüssigkeiten in das Gerät gelangen. Dies könnte einen Brand bzw. elektrischen Schlag auslösen.• Immunity to conducted disturbances, Induced by radio-frequency fields: EN 61000-4-6:1996 (0.15 - 80 MHz with 1 kHz AM 80% Modulation: 3 V/m)• Power frequency magnetic field immunity test according to EN 61000-4-8:1993 (1 A/m at frequency 50 Hz)• Voltage dips, short interruptions and voltage variations immunity test according to EN 61000-4-11:1994 (>95% Reduction @10 ms, 30% Reduction @500 ms, >95% Reduction @5000 ms)LVD: • EN 60950 (A1/1992; A2/1993; A3/1993; A4/1995; A11/1997)MDD: • IEC 60601-1
COMPLIANCESvi13.Öffnen sie niemals das Gerät. Das Gerät darf aus Gründen der elektrischen Sicherheit nur von authorisiertem Servicepersonal geöffnet werden.14.Wenn folgende Situationen auftreten ist das Gerät vom Stromnetz zu trennen und von einer qualifizierten Servicestelle zu überprüfen:a. Netzkabel oder Netzstecker sind beschädigt.b. Flüssigkeit ist in das Gerät eingedrungen.c. Das Gerät war Feuchtigkeit ausgesetzt.d. Wenn das Gerät nicht der Bedienungsanleitung entsprechend funktioniert oder Sie mit Hilfe dieser Anleitung keine Verbesserung erzielen.e. Das Gerät ist gefallen und/oder das Gehäuse ist beschädigt.f. Wenn das Gerät deutliche Anzeichen eines Defektes aufweist.15. Stellen Sie sicher, daß die Stromversorgung dieses Gerätes nach der EN 60950 geprüft ist. Ausgangswerte der Stromversorgung sollten die Werte von AC 7,5-8V, 50-60Hz nicht über oder unterschreiten sowie den minimalen Strom von 1A nicht unterschreiten.Der arbeitsplatzbezogene Schalldruckpegel nach DIN 45 635 Teil 1000 beträgt 70dB(A) oder weniger.
viiTABLE OF CONTENTS1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1Package Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2Hardware Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3Component Description . . . . . . . . . . . . . . . . . . . . . . . . 1-4Features and Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-82 Hardware Installation . . . . . . . . . . . . . . . . . . . . . 2-13 Network Configuration . . . . . . . . . . . . . . . . . . . . 3-1Network Topologies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2Ad Hoc Wireless LAN (no AP or Bridge) . . . . . . . . . . . . 3-2Infrastructure Wireless LAN . . . . . . . . . . . . . . . . . . . . . 3-3Infrastructure Wireless LAN for Roaming Wireless PCs 3-44 Initial Configuration . . . . . . . . . . . . . . . . . . . . . . 4-1Initial Setup through the CLI . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1Required Connections . . . . . . . . . . . . . . . . . . . . . . . . . 4-1Initial Configuration Steps . . . . . . . . . . . . . . . . . . . . . . . 4-2Using Web-based Management . . . . . . . . . . . . . . . . . . . . . . . 4-45 System Configuration . . . . . . . . . . . . . . . . . . . . . 5-1Advanced Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2System Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4TCP / IP Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5Radius . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7Authentication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9Filter Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13SNMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16Administration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-18System Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-22Radio Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-25Radio Settings (802.11a) . . . . . . . . . . . . . . . . . . . . . . 5-26Radio Settings (802.11g) . . . . . . . . . . . . . . . . . . . . . . 5-29Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-31Status Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-40Access Point Status . . . . . . . . . . . . . . . . . . . . . . . . . . 5-40Station Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-42
TABLE OF CONTENTSviiiEvent Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-446 Command Line Interface . . . . . . . . . . . . . . . . . . . 6-1Using the Command Line Interface . . . . . . . . . . . . . . . . . . . . .6-1Accessing the CLI . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1Console Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1Telnet Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2Entering Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3Keywords and Arguments . . . . . . . . . . . . . . . . . . . . . . .6-3Minimum Abbreviation . . . . . . . . . . . . . . . . . . . . . . . . . .6-4Command Completion . . . . . . . . . . . . . . . . . . . . . . . . . .6-4Getting Help on Commands . . . . . . . . . . . . . . . . . . . . . .6-4Partial Keyword Lookup . . . . . . . . . . . . . . . . . . . . . . . . .6-5Negating the Effect of Commands . . . . . . . . . . . . . . . . .6-6Using Command History . . . . . . . . . . . . . . . . . . . . . . . .6-6Understanding Command Modes . . . . . . . . . . . . . . . . .6-6Exec Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-7Configuration Commands . . . . . . . . . . . . . . . . . . . . . . .6-7Command Line Processing . . . . . . . . . . . . . . . . . . . . . .6-8Command Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-10General Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-11configure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-11end . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-12exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-12ping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-13reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-14show history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-14show line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-15System Management Commands . . . . . . . . . . . . . . . . . . . . .6-16prompt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-17system name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-18username . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-19password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-19ip http port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-20ip http server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-20logging on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-21logging host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-22logging console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-22
TABLE OF CONTENTSixlogging level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-23logging facility-type . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-24show logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-25sntp-server ip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-25sntp-server enable . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-26sntp-server date-time . . . . . . . . . . . . . . . . . . . . . . . . . 6-27sntp-server daylight-saving . . . . . . . . . . . . . . . . . . . . . 6-28sntp-server timezone . . . . . . . . . . . . . . . . . . . . . . . . . 6-29show sntp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-29show system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-30show version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-31SNMP Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-32snmp-server community . . . . . . . . . . . . . . . . . . . . . . . 6-32snmp-server contact . . . . . . . . . . . . . . . . . . . . . . . . . . 6-33snmp-server enable server . . . . . . . . . . . . . . . . . . . . . 6-34snmp-server host . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-35snmp-server location . . . . . . . . . . . . . . . . . . . . . . . . . 6-36show snmp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-37Flash/File Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-37bootfile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-38copy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-39delete . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-40dir . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-41RADIUS Client . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-42radius-server address . . . . . . . . . . . . . . . . . . . . . . . . . 6-43radius-server port . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-43radius-server key . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-44radius-server retransmit . . . . . . . . . . . . . . . . . . . . . . . 6-44radius-server timeout . . . . . . . . . . . . . . . . . . . . . . . . . 6-45show radius . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-46802.1x Port Authentication . . . . . . . . . . . . . . . . . . . . . . . . . . 6-47802.1x . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-48802.1x broadcast-key-refresh-rate . . . . . . . . . . . . . . . 6-49802.1x session-key-refresh-rate . . . . . . . . . . . . . . . . . 6-50802.1x session-timeout . . . . . . . . . . . . . . . . . . . . . . . . 6-51address filter default . . . . . . . . . . . . . . . . . . . . . . . . . . 6-51address filter entry . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-52address filter delete . . . . . . . . . . . . . . . . . . . . . . . . . . 6-53
TABLE OF CONTENTSxmac-authentication server . . . . . . . . . . . . . . . . . . . . . .6-54mac-authentication session-timeout . . . . . . . . . . . . . . .6-55show authentication . . . . . . . . . . . . . . . . . . . . . . . . . . .6-56Filtering Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-57filter local-bridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-57filter ap-manage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-58filter ethernet-type enable . . . . . . . . . . . . . . . . . . . . . .6-59filter ethernet-type protocol . . . . . . . . . . . . . . . . . . . . .6-60show filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-61Interface Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-62interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-65dns server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-66ip address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-67ip dhcp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-68shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-69speed-duplex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-70show interface ethernet . . . . . . . . . . . . . . . . . . . . . . . .6-71description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-71closed-system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-72speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-73channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-74turbo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-75ssid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-76beacon-interval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-76dtim-period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-77fragmentation-length . . . . . . . . . . . . . . . . . . . . . . . . . .6-78rts-threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-79authentication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-80encryption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-81key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-82transmit-key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-83transmit-power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-84max-association . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-85multicast-cipher . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-86wpa-clients . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-87wpa-mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-89wpa-preshared-key . . . . . . . . . . . . . . . . . . . . . . . . . . .6-90wpa-psk-type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-91
TABLE OF CONTENTSxishutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-92show interface wireless . . . . . . . . . . . . . . . . . . . . . . . . 6-93show station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-94IAPP Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-95iapp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-95VLAN Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-96vlan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-97native-vlanid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-98A Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . A-1Maximum Distance Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4B Cables and Pinouts . . . . . . . . . . . . . . . . . . . . . . . B-1Twisted-Pair Cable Assignments . . . . . . . . . . . . . . . . . . . . . . B-110/100BASE-TX Pin Assignments . . . . . . . . . . . . . . . . B-2Straight-Through Wiring . . . . . . . . . . . . . . . . . . . . . . . . B-3Crossover Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3Console Port Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . B-4Wiring Map for Serial Cable . . . . . . . . . . . . . . . . . . . . . B-4Serial Cable Signal Directions for DB-9 Ports . . . . . . . . B-5Serial Cable Signal Directions for DB-25 Ports . . . . . . . B-5C Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-4Transmit Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-5GlossaryIndex
TABLE OF CONTENTSxii
1-1Chapter 1IntroductionSMC’s EliteConnect Universal 2.4GHz/5GHz Wireless Access Point (SMC2555W-AG) is an IEEE 802.11a/g access point that provides transparent, wireless high-speed data communications between the wired LAN and fixed, portable or mobile devices equipped with an 802.11a, 802.11b, or 802.11g wireless adapter. This solution offers fast, reliable wireless connectivity with considerable cost savings over wired LANs (which include long-term maintenance overhead for cabling). Using 802.11a, 802.11b, and 802.11g technology, this access point can easily replace a 10 Mbps Ethernet connection or seamlessly integrate into a 10/100 Mbps Ethernet LAN.In addition, the access point offers full network management capabilities through an easy to configure web interface, a command line interface for initial configuration and troubleshooting, and support for Simple Network Management tools, such as SMC’s EliteView (available in Q4 of 2003).Radio Characteristics – The IEEE 802.11a/g standard uses a radio modulation technique known as Orthogonal Frequency Division Multiplexing (OFDM), and a shared collision domain (CSMA/CA). It operates at the 5 GHz Unlicensed National Information Infrastructure (UNII) band for connections to 802.11a clients, and at 2.4 GHz for connections to 802.11g clients.IEEE 802.11g includes backward compatibility with the IEEE 802.11b standard. IEEE 802.11b also operates at 2.4 GHz, but uses Direct Sequence Spread Spectrum (DSSS) modulation technology to achieve a communication rate of up to 11 Mbps.
Introduction1-2The access point also supports a 54 Mbps half-duplex connection to Ethernet networks for each active channel (up to 108 Mbps in turbo mode on the 802.11a interface).Package ChecklistThe EliteConnect Universal 2.4GHz/5GHz Wireless Access Point package includes:•One Wireless Dual-band Access Point (SMC2555W-AG)•One Category 5 network cable•One RS-232 console cable•One 5.1 VDC power adapter and power cord•Four rubber feet •Three mounting screws•One Documentation CD•This User GuideInform your dealer if there are any incorrect, missing or damaged parts. If possible, retain the carton, including the original packing materials. Use them again to repack the product in case there is a need to return it.Please register this product and upgrade the product warranty at www.smc.com
Hardware Description1-3Hardware DescriptionFront PanelRear PanelAntennasIndicator PanelSecurity Slot Console PortRJ-45 Port,PoE ConnectorReset Button5 VDC Power Socket
Introduction1-4Component DescriptionAntennasThe access point includes two antennas for wireless communications. The signal transmitted from both antennas is identical, but only the best signal received on one of the antennas is used. The antennas transmit the outgoing signal as a toroidal sphere, so the antennas should be adjusted to different angles to provide better coverage. For further information, see “Positioning the Antennas” on page 2-2.LED IndicatorsThe access point includes four status LED indicators, as described in the following figure and table.LED Status DescriptionPWR On Indicates that power is being supplied.Flashing Indicates -• running a self-test• loading software program Flashing (Prolonged) Indicates system errors Ethernet Link On Indicates a valid 10/100 Mbps Ethernet cable link.Flashing Indicates that the access point is transmitting or receiving data on a 10/100 Mbps Ethernet LAN. Flashing rate is proportional to your network activity.Power 802.11a WirelessLink/ActivityEthernetLink/Activity 802.11b/g WirelessLink/Activity
Hardware Description1-5Security SlotThe access point includes a Kensington security slot on the rear panel. You can prevent unauthorized removal of the access point by wrapping the Kensington security cable (not provided) around an unmovable object, inserting the lock into the slot, and turning the key.Console PortThis port is used to connect a console device to the access point through a serial cable. This connection is described under “Console Port Pin Assignments” on page B-4. The console device can be a PC or workstation running a VT-100 terminal emulator, or a VT-100 terminal..11a On Indicates a valid 802.11a wireless link.Very Slow Flashing Searching for network association.Slow Flashing Associated with network but no activity.Fast Flashing Indicates that the access point is transmitting or receiving data through wireless links. Flashing rate is proportional to network activity..11g On Indicates a valid 802.11g or 802.11b wireless link.Very Slow Flashing Searching for network association.Slow Flashing Associated with network but no activity.Fast Flashing Indicates that the access point is transmitting or receiving data through wireless links. Flashing rate is proportional to network activity.LED Status Description
Introduction1-6Ethernet PortThe access point has one 10BASE-T/100BASE-TX RJ-45 port that can be attached directly to 10BASE-T/100BASE-TX LAN segments. These segments must conform to the IEEE 802.3 or 802.3u specifications. This port uses an MDI (i.e., internal straight-through) pin configuration. You can therefore use straight-through twisted-pair cable to connect this port to most network interconnection devices such as a switch or router that provide MDI-X ports. However, when connecting the access point to a workstation or other device that does not have MDI-X ports, you must use crossover twisted-pair cable.The access point appears as an Ethernet node and performs a bridging function by moving packets from the wired LAN to remote workstations on the wireless infrastructure.Note: The RJ-45 port also supports Power over Ethernet (PoE) based on the IEEE 802.3af standard. Refer to the description for the “Power Connector” for information on supplying power to the access point’s network port from a network device, such as a switch, that provides Power over Ethernet (PoE).Reset ButtonThis button is used to reset the access point or restore the factory default configuration. If you hold down the button for less than 5 seconds, the access point will perform a hardware reset. If you hold down the button for 5 seconds or more, any configuration changes you may have made are removed, and the factory default configuration is restored to the access point. Power ConnectorThe access point does not have a power switch. It is powered on when connected to the AC power adapter, and the power adapter is connected to a power source. The access point automatically
Features and Benefits1-7adjusts to any voltage between 100-240 volts at 50 or 60 Hz. No voltage range settings are required.The access point may also receive Power over Ethernet (PoE) from a switch or other network device that supplies power over the network cable based on the IEEE 802.3af standard. Note that if the access point is connected to a PoE source device and also connected to a local power source through the AC power adapter, PoE will be disabled.Features and Benefits•Local network connection via 10/100 Mbps Ethernet ports or 54 Mbps wireless interface (supporting up to 64 mobile users)•IEEE 802.11a, 802.11b, and 802.11g compliant •Advanced security through 64/128/152-bit Wired Equivalent Protection (WEP) encryption, IEEE 802.1x port authentication, Wi-Fi Protected Access (WPA), SSID broadcast disable, remote authentication via RADIUS server, and MAC address filtering features to protect your sensitive data and authenticate only authorized users to your network•Provides seamless roaming within the IEEE 802.11a, 802.11b, and 802.11g WLAN environment•Scans all available channels and selects the best channel for each client based on the signal-to-noise ratio
Introduction1-8ApplicationsThe Wireless products offer a high speed, reliable, cost-effective solution for 10/100 Mbps wireless Ethernet client access to the network in applications such as:•Remote access to corporate network informationE-mail, file transfer, and terminal emulation.•Difficult-to-wire environments Historical or old buildings, asbestos installations, and open areas where wiring is difficult to employ.•Frequently changing environmentsRetailers, manufacturers, and banks that frequently rearrange the workplace or change location.•Temporary LANs for special projects or peak timesTrade shows, exhibitions and construction sites which need temporary setup for a short time period. Retailers, airline and shipping companies that need additional workstations for a peak period. Auditors who require workgroups at customer sites.•Access to databases for mobile workersDoctors, nurses, retailers, or white-collar workers who need access to databases while being mobile in a hospital, retail store, or an office campus.
2-1Chapter 2Hardware Installation1. Select a Site – Choose a proper place for the access point. In general, the best location is at the center of your wireless coverage area, within line of sight of all wireless devices. Try to place the access point in a position that can best cover its Basic Service Set (refer to “Infrastructure Wireless LAN” on page 3-3). Normally, the higher you place the access point, the better the performance.2. Mount the Access Point – The access point can be mounted on any horizontal surface or wall.Mounting on a horizontal surface – To keep the access point from sliding on the surface, attach the four rubber feet provided in the accessory kit to the embossed circles on the bottom of the access point.Mounting on a wall – The access point should be mounted only to a wall or wood surface that is at least 1/2-inch plywood or its equivalent. Mark the position of the mounting screws (included) on the wall. Set the 5/8-inch number 12 wood screws into the wall, leaving about 3 mm (0.12 in.) clearance from the wall. And then slide the access point down onto the screws.3. Lock the Access Point in Place – To prevent unauthorized removal of the access point, you can use a Kensington Slim MicroSaver security cable (not included) to attach the access point to a fixed object.4. Connect the Power Cord – Connect the power adapter to the access point, and the power cord to an AC power outlet.
Hardware Installation2-2Otherwise, the access point can derive its operating power directly from the RJ-45 port when connected to a device that provides IEEE 802.3af compliant Power over Ethernet (PoE). Note: If the access point is connected to both a PoE source device and an AC power source, PoE will be disabled.Warning: Use ONLY the power adapter supplied with this access point. Otherwise, the product may be damaged.5. Observe the Self Test – When you power on the access point, verify that the PWR indicator stops flashing and remains on, and that the other indicators start functioning as described under “LED Indicators” on page 1-4. If the PWR LED does not stop flashing, the self test has not completed correctly. Refer to “Troubleshooting” on page A-1.6. Connect the Ethernet Cable – The access point can be wired to a 10/100 Mbps Ethernet through a network device such as a hub or a switch. Connect your network to the RJ-45 port on the back panel with category 3, 4, or 5 UTP Ethernet cable. When the access point and the connected device are powered on, the Ethernet Link LED should light indicating a valid network connection.Note: The RJ-45 port on the access point uses an MDI pin configuration, so you must use straight-through cable for network connections to hubs or switches that only have MDI-X ports, and crossover cable for network connections to PCs, servers or other end nodes that only have MDI ports. However, if the device to which you are connecting supports auto-MDI/MDI-X operation, you can use either straight-through or crossover cable.7. Position the Antennas – The antennas emit signals along a toroidal plane, and thus provide more effective coverage when positioned along different axes. For example, you might position the antennas around 45 to 90 degrees from each other.
Hardware Installation2-3The access point also compares the strength of an incoming signal on both antennas, and uses the antenna receiving the stronger signal to communicate with a wireless client.8. Connect the Console Port – Connect the console cable (included) to the RS-232 console port for accessing the command-line interface. You can manage the access point using the console port (Chapter 6), the web interface (Chapter 5), or SNMP management software such as SMC’s EliteView.
Hardware Installation2-4
3-1Chapter 3Network ConfigurationThe wireless solution supports a stand-alone wireless network configuration as well as an integrated configuration with 10/100 Mbps Ethernet LANs.Wireless network cards, adapters, and access points can be configured as:•Ad hoc for departmental, SOHO, or enterprise LANs•Infrastructure for wireless LANs•Infrastructure wireless LAN for roaming wireless PCsThe 802.11b and 802.11g frequency band which operates at 2.4 GHz can easily encounter interference from other 2.4 GHz devices, such as other 802.11b or g wireless devices, cordless phones and microwave ovens. If you experience poor wireless LAN performance, try the following measures: •Limit any possible sources of radio interference within the service area•Increase the distance between neighboring access points•Decrease the signal strength of neighboring access points•Increase the channel separation of neighboring access points (e.g., up to 3 channels of separation for 802.11b, up to 4 channels for 802.11a, or up to 5 channels for 802.11g)
Network Configuration3-2Network TopologiesAd Hoc Wireless LAN (no AP or Bridge)An ad hoc wireless LAN consists of a group of computers, each equipped with a wireless adapter, connected via radio signals as an independent wireless LAN. Computers in a specific ad hoc wireless LAN must therefore be configured to the same radio channel. Ad Hoc Wireless LANNotebook withWireless USB AdapterNotebook withWireless PC CardPC with WirelessPCI Adapter
Network Topologies3-3Infrastructure Wireless LANThe access point also provides access to a wired LAN for wireless workstations. An integrated wired/wireless LAN is called an Infrastructure configuration. A Basic Service Set (BSS) consists of a group of wireless PC users, and an access point that is directly connected to the wired LAN. Each wireless PC in this BSS can talk to any computer in its wireless group via a radio link, or access other computers or network resources in the wired LAN infrastructure via the access point.The infrastructure configuration not only extends the accessibility of wireless PCs to the wired LAN, but also increases the effective wireless transmission range for wireless PCs by passing their signal through one or more access points.A wireless infrastructure can be used for access to a central database, or for connection between mobile workers, as shown in the following figure.FileServerSwitchDesktop PCAccess PointWired LAN Extensionto Wireless AdaptersPC with WirelessPCI AdapterNotebook with WirelessPC Card Adapter
Network Configuration3-4Infrastructure Wireless LAN for Roaming Wireless PCsThe Basic Service Set (BSS) is the communications domain for each wireless access point. For wireless PCs that do not need to support roaming, set the domain identifier (SSID) for the wireless card to the SSID of the access point to which you want to connect. Check with your administrator for the SSID of the access point or bridge to which he wants you to connect.A wireless infrastructure can also support roaming for mobile workers. More than one access point can be configured to create an Extended Service Set (ESS). By placing the access points so that a continuous coverage area is created, wireless users within this ESS can roam freely. All SMC wireless network cards and adapters and SMC2555W-AG wireless access points within a specific ESS must be configured with the same SSID.FileServerSwitchDesktop PCAccess Point <BSS2>Notebook with WirelessPC Card AdapterSeamless Roaming<ESS>SwitchAccess Point<BSS1>PC with WirelessPCI AdapterNotebook with WirelessPC Card Adapter
4-1Chapter 4Initial ConfigurationThe EliteConnect Universal 2.4GHz/5GHz Wireless Access Point SMC2555W-AG offers a variety of management options, including a web-based interface, a direct connection to the console port, or using SNMP software such as SMC’s EliteView.The initial configuration steps can be made through the web browser interface using the Setup Wizard (page 4-4). The default IP address is 192.168.2.2. If this address is not compatible with your network, you can first use the command line interface (CLI) as described below to configure a valid address.Initial Setup through the CLIRequired ConnectionsThe SMC2555W-AG provides an RS-232 serial port that enables a connection to a PC or terminal for monitoring and configuration. Attach a VT100-compatible terminal, or a PC running a terminal emulation program to the access point. You can use the console cable provided with this package, or use a null-modem cable that complies with the wiring assignments shown on page B-4.To connect to the console port, complete the following steps:1. Connect the console cable to the serial port on a terminal, or a PC running terminal emulation software, and tighten the captive retaining screws on the DB-9 connector.
Initial Configuration4-22. Connect the other end of the cable to the RS-232 serial port on the access point.3. Make sure the terminal emulation software is set as follows:•Select the appropriate serial port (COM port 1 or 2).•Set the data rate to 9600 baud.•Set the data format to 8 data bits, 1 stop bit, and no parity.•Set flow control to none.•Set the emulation mode to VT100.•When using HyperTerminal, select Terminal keys, not Windows keys.Note: When using HyperTerminal with Microsoft® Windows® 2000, make sure that you have Windows 2000 Service Pack 2 or later installed. Windows 2000 Service Pack 2 fixes the problem of arrow keys not functioning in HyperTerminal’s VT100 emulation. See www.microsoft.com for information on Windows 2000 service packs. 4. Once you have set up the terminal correctly, press the [Enter] key to initiate the console connection. The console login screen will be displayed.For a description of how to use the CLI, see “Using the Command Line Interface” on page 6-1. For a list of all the CLI commands and detailed information on using the CLI, refer to “Command Groups” on page 6-10.Initial Configuration StepsLogging In – Enter “admin” for the user name. The default password is null, so just press [Enter] at the password prompt. The CLI prompt appears displaying the access point’s model number.Username: adminPassword:SMC Enterprise AP#
Initial Setup through the CLI4-3Setting the IP Address – By default, the access point is configured to obtain IP address settings from a DHCP server. You will therefore have to use the command line interface (CLI) to assign an IP address that is compatible with your network. Type “configure” to enter configuration mode, then type “interface ethernet” to access the Ethernet interface-configuration mode.First type “no dhcp” to disable DHCP client mode. Then type “ip address ip-address netmask gateway,” where “ip-address” is the access point’s IP address, “netmask” is the network mask for the network, and “gateway” is the default gateway router. Check with your system administrator to obtain an IP address that is compatible with your network.After configuring the access point’s IP parameters, you can access the management interface from anywhere within the attached network. The command line interface can also be accessed using Telnet from any computer attached to the network. SMC Enterprise AP#configureSMC Enterprise AP(config)#interface ethernetSMC Enterprise AP(config-if)#SMC Enterprise AP(if-ethernet)#no dhcpSMC Enterprise AP(if-ethernet)#ip address 192.168.2.2 255.255.255.0 192.168.2.254SMC Enterprise AP(if-ethernet)#
Initial Configuration4-4Using Web-based ManagementSetup WizardThere are only a few basic steps you need to complete to connect the SMC2555W-AG to your corporate network, and provide network access to wireless clients. The Setup Wizard takes you through configuration procedures for the wireless Service Set Identifier, the radio channel selection, IP configuration, and basic WEP authentication for wireless clients. The SMC2555W-AG can be managed by any computer using a web browser (Internet Explorer 5.0 or above, or Netscape Navigator 6.2 or above). Enter the default IP address: http://192.168.2.2
Using Web-based Management4-5Logging In – Enter the username “smcadmin,” the password “admin,” and click LOGIN. For information on configuring a user name and password, refer to page 5-18.The home page displays the Main Menu.
Initial Configuration4-6Launching the Setup Wizard – To perform initial configuration, click Setup Wizard on the home page, then click on the [Next] button to start the process. 1. Service Set ID – Enter the service set identifier in the SSID box which all wireless clients must use to associate with the access point. The SSID is case sensitive and can consist of up to 32 alphanumeric characters. (Default: SMC)
Using Web-based Management4-72. Radio Channel – You must enable radio communications for 802.11a and 802.11b/g, and set the operating radio channel.• 802.11aTurbo Mode – If you select Enable, the access point will operate in turbo mode with a data rate of up to 108 Mbps. Normal mode support 13 channels, Turbo mode supports only 5 channels. (Default: Disable)802.11a Radio Channel – Set the operating radio channel number. (Default: 64ch, 5.320GHz)Auto Channel Select – Select Enable for automatic radio channel detection. (Default: Enable)• 802.11b/g802.11g Radio Channel: Set the operating radio channel number. (Default: 1)Note: Available channel settings are limited by local regulations which determine which channels are available. (See “Maximum Channels” on page C-1.)
Initial Configuration4-83. IP Configuration – Either enable or disable (Dynamic Host Configuration Protocol (DHCP) for automatic IP configuration. If you disable DHCP, then manually enter the IP address and subnet mask. If a management station exists on another network segment, then you must enter the IP address for a gateway that can route traffic between these segments. Then enter the IP address for the primary and secondary Domain Name Servers (DNS) servers to be used for host-name to IP address resolution. DHCP Client – With DHCP Client enabled, the IP address, subnet mask and default gateway can be dynamically assigned to the access point by the network DHCP server. (Default: Disable)Note: If there is no DHCP server on your network, then the access point will automatically start up with its default IP address, 192.168.2.2.
Using Web-based Management4-94. Security – Set the Authentication Type to “Open System” to allow open access without authentication, or “Shared Key” to require authentication based on a shared key. Enable Wired Equivalent Privacy (WEP) to encrypt data transmissions. To configure other security features use the Advanced Setup menu as described in Chapter 5.Authentication Type – Use “Open System” to allow open access to all wireless clients without performing authentication, or “Shared Key” to perform authentication based on a shared key that has been distributed to all stations. (Default: Open System)WEP – Wired Equivalent Privacy is used to encrypt transmissions passing between wireless clients and the access point. (Default: Disabled)Shared Key Setup – If you selected “Shared Key” authentication type or enabled WEP, then you also need to configure the shared key by selecting 64-bit or 128-bit key
Initial Configuration4-10type, and entering a hexadecimal or ASCII string of the appropriate length. The key can be entered as alphanumeric characters or hexadecimal (0~9, A~F, e.g., D7 0A 9C 7F E5). (Default: 128 bit, hexadecimal key type)64-Bit Manual Entry: The key can contain 10 hexadecimal digits, or 5 alphanumeric characters.128-Bit Manual Entry: The key can contain 26 hexadecimal digits or 13 alphanumeric characters. Note: All wireless devices must be configured with the same Key ID values to communicate with the access point.5. Click Finish.6. Click the OK button to restart the access point.
5-1Chapter 5System ConfigurationBefore continuing with advanced configuration, first complete the initial configuration steps described in Chapter 4 to set up an IP address for the SMC2555W-AG.The SMC2555W-AG can be managed by any computer using a web browser (Internet Explorer 5.0 or above, or Netscape Navigator 6.2 or above). Enter the default IP address: http://192.168.2.2To log into the SMC2555W-AG, enter the default user name “smcadmin” and password “smc.” When the home page displays, click on Advanced Setup. The following page will display.
System Configuration5-2The information in this chapter is organized to reflect the structure of the web screens for easy reference. However, we recommend that you configure a user name and password as the first step under advanced configuration to control management access to this device (page 5-18). Advanced ConfigurationThe Advanced Configuration pages include the following options.Menu Description PageSystem Configures basic administrative and client access 5-4Identification Specifies the host name and Service Set Identifier (SSID) 5-4TCP / IP Settings Configures the IP address, subnet mask, gateway, and domain name servers 5-5Radius Configures the RADIUS server for wireless client authentication 5-7Authentication Configures 802.1x client authentication, with an option for MAC address authentication 5-9Filter Control Filters communications between wireless clients, access to the management interface from wireless clients, and traffic matching specific Ethernet protocol types5-13SNMP Controls access to this access point from management stations using SNMP, as well as the hosts that will receive trap messages5-16Administration Configures user name and password for management access; upgrades software from local file, FTP or TFTP server; resets configuration settings to factory defaults; and resets the access point5-18System Log Controls logging of error messages; sets the system clock via SNTP server or manual configuration5-22
Advanced Configuration5-3Radio Interface 1 Configures the IEEE 802.11a interface 5-25Radio Settings Configures radio signal parameters, such as radio channel, transmission rate, and beacon settings5-26Security Configures data encryption with Wired Equivalent Protection (WEP) or Wi-Fi Protected Access (WPA)5-31Radio Interface 2 Configures the IEEE 802.11b/g interface 5-25Radio Settings Configures radio signal parameters, such as radio channel, transmission rate, and beacon settings5-29Security Configures data encryption with Wired Equivalent Protection (WEP) or Wi-Fi Protected Access (WPA)5-31Menu Description Page
System Configuration5-4System IdentificationThe system information parameters for the SMC2555W-AG can be left at their default settings. However, modifying these parameters can help you to more easily distinguish different devices in your network.You should set a Service Set Identification (SSID) to identify the wireless network service provided by the SMC2555W-AG. Only clients with the same SSID can associate with the access point.System Name – An alias for the access point, enabling the device to be uniquely identified on the network. (Default: Enterprise AP; Range: 1-22 characters) SSID – The name of the basic service set provided by the access point. Clients that want to connect to the network through the access point must set their SSID to the same as that of the access point. (Default: SMC; Range: 1-32 characters)
Advanced Configuration5-5TCP / IP SettingsConfiguring the SMC2555W-AG with an IP address expands your ability to manage the access point. A number of access point features depend on IP addressing to operate.Note: You can use the web browser interface to access IP addressing only if the access point already has an IP address that is reachable through your network. By default, the SMC2555W-AG will be automatically configured with IP settings from a Dynamic Host Configuration Protocol (DHCP) server. However, if you are not using a DHCP server to configure IP addressing, use the CLI to manually configure the initial IP values (page 4-2). After you have network access to the access point, you can use the web browser interface to modify the initial IP configuration, if needed.Note: If there is no DHCP server on your network, or DHCP fails, the access point will automatically start up with a default IP address of 192.168.2.2.
System Configuration5-6DHCP Client (Enable) – Select this option to obtain the IP settings for the access point from a DHCP (Dynamic Host Configuration Protocol) server. The IP address, subnet mask, default gateway, and Domain Name Server (DNS) address are dynamically assigned to the access point by the network DHCP server. (Default: Disable)DHCP Client (Disable) – Select this option to manually configure a static address for the access point. •IP Address: The IP address of the access point. Valid IP addresses consist of four decimal numbers, 0 to 255, separated by periods.•Subnet Mask: The mask that identifies the host address bits used for routing to specific subnets.•Default Gateway: The default gateway is the IP address of the router for the access point, which is used if the requested destination address is not on the local subnet.If you have management stations, DNS, RADIUS, or other network servers located on another subnet, type the IP address of the default gateway router in the text field provided. Otherwise, leave the address as all zeros (0.0.0.0).•Primary and Secondary DNS Address: The IP address of Domain Name Servers on the network. A DNS maps numerical IP addresses to domain names and can be used to identify network hosts by familiar names instead of the IP addresses. If you have one or more DNS servers located on the local network, type the IP addresses in the text fields provided. Otherwise, leave the addresses as all zeros (0.0.0.0).
Advanced Configuration5-7RadiusRemote Authentication Dial-in User Service (RADIUS) is an authentication protocol that uses software running on a central server to control access to RADIUS-aware devices on the network. An authentication server contains a database of user credentials for each user that requires access to the network.A primary RADIUS server must be specified for the SMC2555W-AG to implement IEEE 802.1x network access control and Wi-Fi Protected Access (WPA) wireless security. A secondary RADIUS server may also be specified as a backup should the primary server fail or become inaccessible.Note: This guide assumes that you have already configured RADIUS server(s) to support the access point. Configuration of RADIUS server software is beyond the scope of this guide, refer to the documentation provided with the RADIUS server software.
System Configuration5-8Primary Radius Server Setup – Configure the following settings to use RADIUS authentication on the access point.•IP Address: Specifies the IP address or host name of the RADIUS server.•Port: The UDP port number used by the RADIUS server for authentication messages. (Range: 1024-65535; Default: 1812)•Key: A shared text string used to encrypt messages between the access point and the RADIUS server. Be sure that the same text string is specified on the RADIUS server. Do not use blank spaces in the string. (Maximum length: 255 characters)•Timeout: Number of seconds the access point waits for a reply from the RADIUS server before resending a request. (Range: 1-60 seconds; Default: 5)•Retransmit attempts: The number of times the access point tries to resend a request to the RADIUS server before authentication fails. (Range: 1-30; Default: 3)Note: For the Timeout and Retransmit attempts fields, accept the default values unless you experience problems connecting to the RADIUS server over the network.Secondary Radius Server Setup – Configure a secondary RADIUS server to provide a backup in case the primary server fails. The access point uses the secondary server if the primary server fails or becomes inaccessible. Once the access point switches over to the secondary server, it periodically attempts to establish communication again with primary server. If communication with the primary server is re-established, the secondary server reverts to a backup role.
Advanced Configuration5-9AuthenticationWireless clients can be authenticated for network access by checking their MAC address against the local database configured on the access point, or by using the IEEE 802.1x network access authentication protocol to look up their MAC addresses on a RADIUS server. The 802.1x protocol can also be configured to check other user credentials such as a user name and password.
System Configuration5-10MAC Authentication – You can configure a list of the MAC addresses for wireless clients that are authorized to access the network. This provides a basic level of authentication for wireless clients attempting to gain access to the network. A database of authorized MAC addresses can be stored locally on the SMC2555W-AG or remotely on a central RADIUS server. (Default: Local MAC)•Local MAC: The MAC address of the associating station is compared against the local database stored on the access point. The Local MAC Authentication section enables the local database to be set up.•Radius MAC: The MAC address of the associating station is sent to a configured RADIUS server for authentication. When using a RADIUS authentication server for MAC address authentication, the server must first be configured in the Radius window (page 5-7).•Disable: No checks are performed on an associating station’s MAC address.Local MAC Authentication – Configures the local MAC authentication database. The MAC database provides a mechanism to take certain actions based on a wireless client’s MAC address. The MAC list can be configured to allow or deny network access to specific clients.•System Default: Specifies a default action for all unknown MAC addresses (that is, those not listed in the local MAC database).- Deny: Blocks access for all MAC addresses except those listed in the local database as “allowed.”- Allow: Permits access for all MAC addresses except those listed in the local database as “denied.”
Advanced Configuration5-11•MAC Authentication Settings: Enters specified MAC addresses and permissions into the local MAC database.- MAC Address: Physical address of a client. Enter six pairs of hexadecimal digits separated by hyphens; for example, 00-90-D1-12-AB-89.- Permission: Select Allow to permit access or Deny to block access. If Delete is selected, the specified MAC address entry is removed from the database.- Update: Enters the specified MAC address and permission setting into the local database.•MAC Authentication Table: Displays current entries in the local MAC database.802.1x Setup – IEEE 802.1x is a standard framework for network access control that uses a central RADIUS server for user authentication. This control feature prevents unauthorized access to the network by requiring an 802.1x client application to submit user credentials for authentication. The 802.1x standard uses the Extensible Authentication Protocol (EAP) to pass user credentials (either digital certificates, user names and passwords, or other) from the client to the RADIUS server. Client authentication is then verified on the RADIUS server before the access point grants client access to the network.The 802.1x EAP packets are also used to pass dynamic unicast session keys and static broadcast keys to wireless clients. Session keys are unique to each client and are used to encrypt and correlate traffic passing between a specific client and the access point. You can also enable broadcast key rotation, so the access point provides a dynamic broadcast key and changes it at a specified interval.You can enable 802.1x as optionally supported or as required to enhance the security of the wireless network. •Disable: The access point does not support 802.1x authentication for any wireless client. After successful
System Configuration5-12wireless association with the access point, each client is allowed to access the network.•Supported: The access point supports 802.1x authentication only for clients initiating the 802.1x authentication process (the access point does not initiate 802.1x authentication). For clients initiating 802.1x, only those successfully authenticated are allowed to access the network. For those clients not initiating 802.1x, access to the network is allowed after successful wireless association with the access point.•Required: The access point enforces 802.1x authentication for all associated wireless clients. If 802.1x authentication is not initiated by a client, the access point will initiate authentication. Only those clients successfully authenticated with 802.1x are allowed to access the network.When 802.1x is enabled, the broadcast and session key rotation intervals can also be configured.•Broadcast Key Refresh Rate: Sets the interval at which the broadcast keys are refreshed for stations using 802.1x dynamic keying. (Range: 0-1440 minutes; Default: 0 means disabled)•Session Key Refresh Rate: The interval at which the access point refreshes unicast session keys for associated clients. (Range: 0-1440 minutes; Default: 0 means disabled)•802.1x Re-authentication Refresh Rate: The time period after which a connected client must be re-authenticated. During the re-authentication process of verifying the client’s credentials on the RADIUS server, the client remains connected the network. Only if re-authentication fails is network access blocked. (Range: 0-65535 seconds; Default: 0 means disabled)
Advanced Configuration5-13Filter ControlThe access point can employ VLAN ID and network traffic frame filtering to control access to network resources and increase security.
System Configuration5-14Native VLAN ID – The VLAN ID assigned to wireless clients that are not assigned to a specific VLAN by RADIUS server configuration.VLAN – Enables or disables VLAN tagging support on the SMC2555W-AG. If enabled, the access point will tag traffic passing from wireless clients to the wired network with the VLAN ID associated with each client on the RADIUS server. Up to 64 VLAN IDs can be mapped to specific wireless clients, allowing users to remain within the same VLAN as they move around a campus site. This feature can also be used to control access to network resources from wireless clients, thereby improving security. A VLAN ID (1-4095) is assigned to a client after successful authentication using IEEE 802.1x and a central RADIUS server. The user VLAN IDs must be configured on the RADIUS server for each user authorized to access the network. If a user does not have a configured VLAN ID, the access point assigns the user to its own configured native VLAN ID.When setting up VLAN IDs for each user on the RADIUS server, be sure to use the RADIUS attributes and values as indicated in the following table.Note: The specific configuration of RADIUS server software is beyond the scope of this guide. Refer to the documentation provided with the RADIUS server software.Number RADIUS Attribute Value64 Tunnel-Type VLAN (13)65 Tunnel-Medium-Type 80281 Tunnel-Private-Group VLANID(1 to 4095 in hexadecimal)
Advanced Configuration5-15When VLAN filtering is enabled, the access point must also have 802.1x authentication enabled and a RADIUS server configured. Wireless clients must also support 802.1x client software to be assigned to a specific VLAN.When VLAN filtering is disabled, the access point ignores the VLAN tags on any received frames.Local Bridge Filter – Controls wireless-to-wireless communications between clients through the SMC2555W-AG. However, it does not affect communications between wireless clients and the wired network.•Disable: Allows wireless-to-wireless communications between clients through the access point.•Enable: Blocks wireless-to-wireless communications between clients through the access point.AP Management Filter – Controls management access to the SMC2555W-AG from wireless clients. Management interfaces include the web, Telnet, or SNMP.•Disable: Allows management access from wireless clients.•Enable: Blocks management access from wireless clients. Ethernet Type Filter – Controls checks on the Ethernet type of all incoming and outgoing Ethernet packets against the protocol filtering table. •Disable: Access point does not filter Ethernet protocol types.•Enable: Access point filters Ethernet protocol types based on the configuration of protocol types in the filter table. If a protocol has its status set to “ON,” the protocol is filtered from the access point.
System Configuration5-16SNMPYou can use a network management application such as SMC’s EliteView (EliteView v6.11, available in Q4 of 2003) to manage the SMC2555W-AG via the Simple Network Management Protocol (SNMP) from a network management station. To implement SNMP management, the SMC2555W-AG must have an IP address and subnet mask, configured either manually or dynamically. Once an IP address has been configured, appropriate SNMP communities and trap receivers should be configured.Community names are used to control management access to SNMP stations, as well as to authorize SNMP stations to receive trap messages from the access point. To communicate with the access point, a management station must first submit a valid community name for authentication. You therefore need to assign community names to specified users or user groups and set the access level.
Advanced Configuration5-17SNMP – Enables or disables SNMP management access and also enables the access point to send SNMP traps (notifications). SNMP management is enabled by default.Location – A text string that describes the system location. (Maximum length: 20 characters)Contact – A text string that describes the system contact. (Maximum length: 255 characters)Community Name (Read Only) – Defines the SNMP community access string that has read-only access. Authorized management stations are only able to retrieve MIB objects. (Maximum length: 23 characters, case sensitive)Community Name (Read/Write) – Defines the SNMP community access string that has read/write access. Authorized management stations are able to both retrieve and modify MIB objects. (Maximum length: 23 characters, case sensitive)Trap Destination IP Address – Specifies the recipient of SNMP notifications. Enter the IP address or the host name. (Host Name: 1 to 20 characters)Trap Destination Community Name – The community string sent with the notification operation. (Maximum length: 23 characters)
System Configuration5-18AdministrationChanging the PasswordManagement access to the web and CLI interface on the SMC2555W-AG is controlled through a single user name and password. You can also gain additional access security by using control filters (see “Filter Control” on page 5-13). To protect access to the management interface, you need to configure an Administrator’s user name and password as soon as possible. If the user name and password are not configured, then anyone having access to the access point may be able to compromise access point and network security. Note: Pressing the Reset button on the back of the SMC2555W-AG for more than five seconds resets the user name and password to the factory defaults. For this reason, we recommend that you protect the access point from physical access by unauthorized persons. Username – The name of the user. The default name is “admin.” (Length: 3-16 characters, case sensitive.)New Password – The password for management access. (Length: 3-16 characters, case sensitive) Confirm New Password – Enter the password again for verification.
Advanced Configuration5-19Upgrading FirmwareYou can upgrade new SMC2555W-AG software from a local file on the management workstation, or from an FTP or TFTP server. New software may be provided periodically on SMC’s web site (http://www.smc.com). After upgrading new software, you must reboot the SMC2555W-AG to implement the new code. Until a reboot occurs, the SMC2555W-AG will continue to run the software it was using before the upgrade started. Also note that rebooting the access point with new software will reset the configuration to the factory default settings.
System Configuration5-20Before upgrading new software, verify that the SMC2555W-AG is connected to the network and has been configured with a compatible IP address and subnet mask.If you need to download from an FTP or TFTP server, take the following additional steps:•Obtain the IP address of the FTP or TFTP server where the access point software is stored.•If upgrading from an FTP server, be sure that you have an account configured on the server with a user name and password.•If VLANs are configured on the access point, determine the VLAN ID with which the FTP or TFTP server is associated, and then configure the management station with the same VLAN ID. If you are managing the access point from a wireless client, the VLAN ID for the the wireless client must be configured on a RADIUS server.Current version – Version number of runtime code.Firmware Upgrade Local – Downloads an operation code image file from the web management station to the access point using HTTP. Use the Browse button to locate the image file locally on the management station and click Start Upgrade to proceed.•New firmware file: Specifies the name of the code file on the server. The new firmware file name should not contain slashes (\ or /), the leading letter of the file name should not be a period (.), and the maximum length for file names is 32 characters for files on the access point. (Valid characters: A-Z, a-z, 0-9, “.”, “-”, “_”)
Advanced Configuration5-21Firmware Upgrade Remote – Downloads an operation code image file from a specified remote FTP or TFTP server. After filling in the following fields, click Start Upgrade to proceed.•New firmware file: Specifies the name of the code file on the server. The new firmware file name should not contain slashes (\ or /), the leading letter of the file name should not be a period (.), and the maximum length for file names on the FTP/TFTP server is 255 characters or 32 characters for files on the access point. (Valid characters: A-Z, a-z, 0-9, “.”, “-”, “_”)•IP Address: IP address or host name of FTP or TFTP server.•Username: The user ID used for login on an FTP server.•Password: The password used for login on an FTP server.Restore Factory Settings – Click the Restore button to reset the configuration settings for the SMC2555W-AG to the factory defaults and reboot the system. Note that all user configured information will be lost. You will have to re-enter the default user name (admin) to re-gain management access to this device.Reset Access Point – Click the Reset button to reboot the system. Note: If you have upgraded system software, then you must reboot the SMC2555W-AG to implement the new operation code.
System Configuration5-22System Log The SMC2555W-AG can be configured to send event and error messages to a System Log Server. The system clock can also be synchronized with a time server, so that all the messages sent to the Syslog server are stamped with the correct time and date.Enabling System LoggingThe SMC2555W-AG supports a logging process that can control error messages saved to memory or sent to a Syslog server. The logged messages serve as a valuable tool for isolating access point and network problems.System Log Setup – Enables the logging of error messages.Logging Host – Enables the sending of log messages to a Syslog server host.
Advanced Configuration5-23Server Name/IP – The IP address or name of a Syslog server.Logging Console – Enables the logging of error messages to the console.Logging Level – Sets the minimum severity level for event logging.The system allows you to limit the messages that are logged by specifying a minimum severity level. The following table lists the error message levels from the most severe (Alert) to least severe (Debug). The message levels that are logged include the specified minimum level up to the Alert level. Note: The access point error log can be viewed using the Event Logs window in the Status section (page 5-44).The Event Logs window displays the last 128 messages logged in chronological order, from the newest to the oldest. Log messages saved in the access point’s memory are erased when the device is rebooted.Configuring SNTPSimple Network Time Protocol (SNTP) allows the SMC2555W-AG to set its internal clock based on periodic updates from a time server (SNTP or NTP). Maintaining an accurate time on the access point enables the system log to record meaningful dates and times for event entries. If the clock is Error Level DescriptionAlerts Immediate action neededCritical Critical conditions (e.g., memory allocation, or free memory error - resource exhausted)Error Error conditions (e.g., invalid input, default used)Warning Warning conditions (e.g., return false, unexpected return)Notice Normal but significant condition, such as cold start Informational Informational messages onlyDebug Debugging messages
System Configuration5-24not set, the access point will only record the time from the factory default set at the last bootup.The SMC2555W-AG acts as an SNTP client, periodically sending time synchronization requests to specific time servers. You can configure up to two time server IP addresses. The access point will attempt to poll each server in the configured sequence.SNTP Server – Configures the access point to operate as an SNTP client. When enabled, at least one time server IP address must be specified.•Primary Server: The IP address of an SNTP or NTP time server that the access point attempts to poll for a time update. •Secondary Server: The IP address of a secondary SNTP or NTP time server. The access point first attempts to update the time from the primary server; if this fails it attempts an update from the secondary server.Note: The SMC2555W-AG also allows you to disable SNTP and set the system clock manually using the CLI.Set Time Zone – SNTP uses Coordinated Universal Time (or UTC, formerly Greenwich Mean Time, or GMT) based on the time at the Earth’s prime meridian, zero degrees longitude. To display a time corresponding to your local time, you must indicate the number of hours your time zone is located before (east) or after (west) UTC.Enable Daylight Saving – The access point provides a way to automatically adjust the system clock for Daylight Savings Time changes. To use this feature you must define the month and date to begin and to end the change from standard time. During this period the system clock is set back by one hour.
Radio Interface5-25Radio InterfaceThe IEEE 802.11a and 802.11g interfaces include configuration options for radio signal characteristics and wireless security features. The configuration options are nearly identical, and are therefore both covered in this section of the manual. The access point can operate in three modes, IEEE 802.11a only, 802.11b/g only, or a mixed 802.11a/b/g mode. Also note that 802.11g is backward compatible with 802.11b. These interfaces are configured independently under the following web pages:•Radio Interface 1: 802.11a •Radio Interface 2: 802.11b/g Note: The radio channel settings for the SMC2555W-AG are limited by local regulations, which determine the number of channels that are available.
System Configuration5-26Radio Settings (802.11a)The IEEE 802.11a interface operates within the 5 GHz band, at up to 54 Mbps in normal mode or up to 108 Mbps in Turbo mode. Enable – Enables radio communications on the SMC2555W-AG. (Default: Enabled)Turbo Mode – The normal 802.11a wireless operation mode provides connections up to 54 Mbps. Turbo Mode is an enhanced mode (not regulated in IEEE 802.11a) that provides a higher data rate of up to 108 Mbps. Enabling Turbo Mode allows the SMC2555W-AG to provide connections up to 108 Mbps. (Default: Disabled)
Radio Interface5-27Note: In normal mode, the access point provides a channel bandwidth of 20 MHz, and supports the maximum number of channels permitted by local regulations (e.g., 11 channels for the United States). In Turbo Mode, the channel bandwidth is increased to 40 MHz to support the increased data rate. However, this reduces the number of channels supported (e.g., 5 channels for the United States).Radio Channel – The radio channel that the access point uses to communicate with wireless clients. When multiple access points are deployed in the same area, set the channel on neighboring access points at least four channels apart to avoid interference with each other. For example, in the United States you can deploy up to four access points in the same area (e.g., channels 36, 56, 149, 165). Also note that the channel for wireless clients is automatically set to the same as that used by the access point to which it is linked. (Default: Channel 60 for normal mode, and channel 42 for Turbo mode)Auto Channel Select – Enables the access point to automatically select an unoccupied radio channel. (Default: Enabled)Transmit Power – Adjusts the power of the radio signals transmitted from the access point. The higher the transmission power, the farther the transmission range. Power selection is not just a trade off between coverage area and maximum supported clients. You also have to ensure that high-power signals do not interfere with the operation of other radio devices in the service area. (Options: 100%, 50%, 25%, 12%, minimum; Default: 100%)Normal ModeTurbo Mode
System Configuration5-28Maximum Supported Rate – The maximum data rate at which a client can connect to the access point. The maximum transmission distance is affected by the data rate. The lower the data rate, the longer the transmission distance. (Options: 54, 48, 36, 24 Mbps; Default: 54 Mbps)Beacon Interval – The rate at which beacon signals are transmitted from the access point. The beacon signals allow wireless clients to maintain contact with the access point. They may also carry power-management information. (Range: 20-1000 TUs; Default: 100 TUs)Data Beacon Rate – The rate at which stations in sleep mode must wake up to receive broadcast/multicast transmissions. Known also as the Delivery Traffic Indication Map (DTIM) interval, it indicates how often the MAC layer forwards broadcast/multicast traffic, which is necessary to wake up stations that are using Power Save mode. The default value of 2 indicates that the access point will save all broadcast/multicast frames for the Basic Service Set (BSS) and forward them after every second beacon. Using smaller DTIM intervals delivers broadcast/multicast frames in a more timely manner, causing stations in Power Save mode to wake up more often and drain power faster. Using higher DTIM values reduces the power used by stations in Power Save mode, but delays the transmission of broadcast/multicast frames.(Range: 1-255 beacons; Default: 2 beacons)RTS Threshold – Sets the packet size threshold at which a Request to Send (RTS) signal must be sent to a receiving station prior to the sending station starting communications. The access point sends RTS frames to a receiving station to negotiate the sending of a data frame. After receiving an RTS frame, the station sends a CTS (clear to send) frame to notify the sending station that it can start sending data.
Radio Interface5-29If the RTS threshold is set to 0, the access point never sends RTS signals. If set to 2347, the access point always sends RTS signals. If set to any other value, and the packet size equals or exceeds the RTS threshold, the RTS/CTS (Request to Send / Clear to Send) mechanism will be enabled. The access points contending for the medium may not be aware of each other. The RTS/CTS mechanism can solve this “Hidden Node Problem.” (Range: 0-2347 bytes: Default: 2347 bytes)Radio Settings (802.11g)The IEEE 802.11g standard operates within the 2.4 GHz band at up to 54 Mbps. Also note that because the IEEE 802.11g standard is an extension of the IEEE 802.11b standard, it allows clients with 802.11b wireless network cards to associate to an 802.11g access point.
System Configuration5-30Enable – Enables radio communications on the SMC2555W-AG. (Default: Enabled)Radio Channel – The radio channel that the access point uses to communicate with wireless clients. When multiple access points are deployed in the same area, set the channel on neighboring access points at least five channels apart to avoid interference with each other. For example, in the United States you can deploy up to three access points in the same area (e.g., channels 1, 6, 11). Also note that the channel for wireless clients is automatically set to the same as that used by the access point to which it is linked. (Range: 1-11; Default: 1)Auto Channel Select – Enables the access point to automatically select an unoccupied radio channel. (Default: Enabled)Maximum Supported Rate – The maximum data rate at which a client can connect to the access point. The maximum transmission distance is affected by the data rate. The lower the data rate, the longer the transmission distance. (Default: 54 Mbps)For a description of the remaining configuration items, see “Radio Settings (802.11a)” on page 5-26.
Radio Interface5-31SecurityThe SMC2555W-AG is configured by default as an “open system,” which broadcasts a beacon signal including the configured SSID. Wireless clients can read the SSID from the beacon, and automatically reset their SSID to allow immediate connection to the nearest access point. To improve wireless network security, you have to implement two main functions:•Authentication: It must be verified that clients attempting to connect to the network are authorized users.•Traffic Encryption: Data passing between the access point and clients must be protected from interception and evesdropping.For a more secure network, the access point can implement one or a combination of the following security mechanisms:•Wired Equivalent Privacy (WEP) page 5-33•IEEE 802.1x page 5-11•Wireless MAC address filtering page 5-10•Wi-Fi Protected Access (WPA) page 5-36
System Configuration5-32The security mechanisms that may be employed depend on the level of security required, the network and management resources available, and the software support provided on wireless clients. A summary of wireless security considerations is listed in the following table.Security Mechanism Client Support Implementation ConsiderationsWEP Built-in support on all 802.11a, 802.11b and 802.11g devices• Provides only weak security• Requires manual key managementWEP with 802.1x Requires 802.1x client support in system or by add-in software(native support provided in Windows XP)• Provides dynamic key rotation for improved WEP security• Requires configured RADIUS server• 802.1x EAP type may require management of digital certificates for clients and serverMAC Address Filtering Uses the MAC address of client network card • Provides only weak user authentication• Management of authorized MAC addresses• Can be combined with other methods for improved security• Optionally configured RADIUS serverWPA Enterprise ModeRequires WPA-enabled system and network card driver(native support provided in Windows XP)• Provides robust security in WPA-only mode• Offers support for legacy WEP clients, but with increased security risk• Requires configured RADIUS server• 802.1x EAP type may require management of digital certificates for clients and serverWPA PSK Mode Requires WPA-enabled system and network card driver(native support provided in Windows XP)• Provides good security in small networks• Requires manual management of pre-shared key
Radio Interface5-33Wired Equivalent Privacy (WEP) WEP provides a basic level of security, preventing unauthorized access to the network and encrypting data transmitted between wireless clients and the access point. WEP uses static shared keys (fixed-length hexadecimal or alphanumeric strings) that are manually distributed to all clients that want to use the network.WEP is the security protocol initially specified in the IEEE 802.11 standard for wireless communications. Unfortunately, WEP has been found to be seriously flawed and cannot be recommended for a high level of network security. For more robust wireless security, the SMC2555W-AG provides Wi-Fi Protected Access (WPA) for improved data encryption and user authentication.
System Configuration5-34Setting up shared keys enables the basic IEEE 802.11 Wired Equivalent Privacy (WEP) on the access point to prevent unauthorized access to the network.If you choose to use WEP shared keys instead of an open system, be sure to define at least one static WEP key for user authentication and data encryption. Also, be sure that the WEP shared keys are the same for each client in the wireless network.Authentication Type Setup – Sets the access point to communicate as an open system that accepts network access attempts from any client, or with clients using pre-configured static shared keys.•Open System: Select this option if you plan to use WPA or 802.1x as a security mechanism. If you don’t set up any other security mechanism on the access point, the network has no protection and is open to all users. This is the default setting.•Shared Key: Sets the access point to use WEP shared keys. If this option is selected, you must configure at least one key on the access point and all clients.Wired Equivalent Privacy (WEP) Setup – Enable or disable the access point to use WEP shared keys for data encryption. If this option is selected, you must configure at least one key on the access point and all clients. (Default: Disable)Shared Key Setup – Select 64 Bit, 128 Bit, or 152 Bit key length. Note that the same size of encryption key must be supported on all wireless clients. (Default: 128 Bit)
Radio Interface5-35Key Type – Select the preferred method of entering WEP encryption keys on the access point and enter up to four keys:•Hexadecimal: Enter keys as 10 hexadecimal digits (0 to 9 and A to F) for 64 bit keys, 26 hexadecimal digits for 128 bit keys, or 32 hexadecimal digits for 152 bit keys.•Alphanumeric: Enter keys as 5 alphanumeric characters for 64 bit keys, 13 alphanumeric characters for 128 bit keys, or 16 alphanumeric characters for 152 bit keys.•Transmit Key Select: Selects the key number to use for encryption. If the clients have all four keys configured to the same values, you can change the encryption key to any of the four settings without having to update the client keys.
System Configuration5-36Wi-Fi Protected Access (WPA)WPA employs a combination of several technologies to provide an enhanced security solution for 802.11 wireless networks. The SMC2555W-AG supports the following WPA components and features:IEEE 802.1x and the Extensible Authentication Protocol (EAP): WPA employs 802.1x as its basic framework for user authentication and dynamic key management. The 802.1x client and RADIUS server should use an appropriate EAP type—such as EAP-TLS (Transport Layer Security), EAP-TTLS (Tunneled TLS), or PEAP (Protected EAP)—for strongest authentication. Working together, these protocols provide “mutual authentication” between a client, the access point, and a RADIUS server that prevents users from accidentally joining a rogue network. Only when a RADIUS server has authenticated a user’s credentials will encryption keys be sent to the access point and client.
Radio Interface5-37Note: To implement WPA on wireless clients requires a WPA-enabled network card driver and 802.1x client software that supports the EAP authentication type that you want to use. Windows XP provides native WPA support, other systems require additional software.Temporal Key Integrity Protocol (TKIP): WPA specifies TKIP as the data encryption method to replace WEP. TKIP avoids the problems of WEP static keys by dynamically changing data encryption keys. Basically, TKIP starts with a master (temporal) key for each user session and then mathematically generates other keys to encrypt each data packet. TKIP provides further data encryption enhancements by including a message integrity check for each packet and a re-keying mechanism, which periodically changes the master key. WPA Pre-Shared Key (PSK) Mode: For enterprise deployment, WPA requires a RADIUS authentication server to be configured on the wired network. However, for small office networks that may not have the resources to configure and maintain a RADIUS server, WPA provides a simple operating mode that uses just a pre-shared password for network access. The Pre-Shared Key mode uses a common password for user authentication that is manually entered on the access point and all wireless clients. The PSK mode uses the same TKIP packet encryption and key management as WPA in the enterprise, providing a robust and manageable alternative for small networks.Mixed WPA and WEP Client Support: WPA enables the access point to indicate its supported encryption and authentication mechanisms to clients using its beacon signal. WPA-compatible clients can likewise respond to indicate their WPA support. This enables the access point to determine which clients are using WPA security and which are using legacy WEP. The access point uses TKIP unicast data encryption keys for WPA clients and WEP unicast keys for WEP clients. The global encryption key for
System Configuration5-38multicast and broadcast traffic must be the same for all clients, therefore it restricts encryption to a WEP key.Advanced Encryption Standard (AES) Support: WPA specifies AES encryption as an optional alternative to TKIP and WEP. AES provides very strong encryption using a completely different ciphering algorithm to TKIP and WEP. The developing IEEE 802.11i wireless security standard has specified AES as an eventual replacement for TKIP and WEP. However, because of the difference in ciphering algorithms, AES requires new hardware support in client network cards that is currently not widely available. The access point includes AES support as a future security enhancement.The WPA configuration parameters are described below:WPA Configuration Mode – The access point can be configured to allow only WPA-enabled clients to access the network, or also allow clients only capable of supporting WEP.WPA Key Management – WPA can be configured to work in an enterprise environment using IEEE 802.1x and a RADIUS server for user authentication. For smaller networks, WPA can be enabled using a common pre-shared key for client authentication with the access point.•WPA authentication over 802.1x: The WPA enterprise mode that uses IEEE 802.1x to authenticate users and to dynamically distribute encryption keys to clients.•WPA Pre-shared Key: The WPA mode for small networks that uses a common password string that is manually distributed. If this mode is selected, be sure to also specify the key string.
Radio Interface5-39Multicast Cipher Mode – Selects an encryption method for the global key used for multicast and broadcast traffic, which is supported by all wireless clients.•WEP: WEP is the first generation security protocol used to encrypt data crossing the wireless medium using a fairly short key. Communicating devices must use the same WEP key to encrypt and decrypt radio signals. WEP has many security flaws, and is not recommended for transmitting highly-sensitive data.•TKIP: TKIP provides data encryption enhancements including per-packet key hashing (that is, changing the encryption key on each packet), a message integrity check, an extended initialization vector with sequencing rules, and a re-keying mechanism.•AES: AES has been designated by the National Institute of Standards and Technology as the successor to the Data Encryption Standard (DES) encryption algorithm, and will be used by the U.S. government for encrypting all sensitive, nonclassified information. Because of its strength, and resistance to attack, AES is also being incorporated as part of the 802.11 standard.WPA Pre-Shared Key Type – If the WPA pre-shared-key mode is used, all wireless clients must be configured with the same key to communicate with the access point.•Hexadecimal: Enter a key as a string of 64 hexadecimal numbers.•Alphanumeric: Enter a key as an easy-to-remember form of letters and numbers. The string must be from 8 to 63 characters, which can include spaces.
System Configuration5-40Status InformationThe Status page includes information on the following items:Access Point StatusThe AP Status window displays basic system configuration settings, as well as the settings for the wireless interface.Menu Description PageAP Status Displays configuration settings for the basic system and the wireless interface 5-40Station Status Shows the wireless clients currently associated with the access point 5-42Event Logs Shows log messages stored in memory 5-44
Status Information5-41AP System Configuration – The AP System Configuration table displays the basic system configuration settings:•System Up Time: Length of time the management agent has been up.•MAC Address: The physical layer address for this device.•System Name: Name assigned to this system.•System Contact: Administrator responsible for the system.•IP Address: IP address of the management interface for this device.•IP Default Gateway: IP address of the gateway router between this device and management stations that exist on other network segments.•HTTP Server: Shows if management access via HTTP is enabled.•HTTP Server Port: Shows the TCP port used by the HTTP interface.•Version: Shows the version number for the runtime code.AP Wireless Configuration – The AP Wireless Configuration table displays the wireless interface settings listed below. Note that Radio 1 refers to the 802.11a interface and Radio 2 refers the 802.11b/g interface.•SSID: The service set identifier for this wireless group.•Radio Channel: The radio channel through which the access point communicates with wireless clients.•Radio Encryption: The key size used for data encryption.•Radio Authentication Type: Shows if open system or shared key authentication is used.•802.1x: Shows if IEEE 802.1x access control for wireless clients is enabled.
System Configuration5-42Station StatusThe Station Status window shows the wireless clients currently associated with the SMC2555W-AG.The Station Configuration page displays basic connection information for all associated stations as described below. Note that this page is automatically refreshed every five seconds. •Station Address: The MAC address of the wireless client.•Authenticated: Shows if the station has been authenticated. The two basic methods of authentication supported for 802.11 wireless networks are “open system” and “shared key.” Open-system authentication accepts any client attempting to connect to the access point without verifying its identity. The shared-key approach uses Wired Equivalent Privacy (WEP) to verify client identity by distributing a shared key to stations before attempting authentication.•Associated: Shows if the station has been successfully associated with the access point. Once authentication is
Status Information5-43completed, stations can associate with the current access point, or reassociate with a new access point. The association procedure allows the wireless system to track the location of each mobile client, and ensure that frames destined for each client are forwarded to the appropriate access point.•Forwarding Allowed: Shows if the station has passed 802.1x authentication and is now allowed to forward traffic to the access point.•Key Type: Displays “Open System” or “Shared Key.”
System Configuration5-44Event LogsThe Event Logs window shows the log messages generated by the access point and stored in memory.The Event Logs table displays the following information:•Log Time: The time the log message was generated.•Event Level: The logging level associated with this message. For a description of the various levels, see “logging level” on page 5-22.•Event Message: The content of the log message.
6-1Chapter 6Command Line InterfaceUsing the Command Line InterfaceAccessing the CLIWhen accessing the management interface for the SMC2555W-AG over a direct connection to the console port, or via a Telnet connection, the access point can be managed by entering command keywords and parameters at the prompt. Using the access point’s command-line interface (CLI) is very similar to entering commands on a UNIX system.Console ConnectionTo access the access point through the console port, perform these steps:1. At the console prompt, enter the user name and password. (The default user name is “smcadmin” and the default password is “admin.”) When the user name is entered, the CLI displays the “SMC Enterprise AP#” prompt. 2. Enter the necessary commands to complete your desired tasks. 3. When finished, exit the session with the “exit” command.
Command Line Interface6-2After connecting to the system through the console port, the login screen displays:Note: Command examples shown later in this chapter abbreviate the console prompt to “SMC-AP” for simplicity.Telnet ConnectionTelnet operates over the IP transport protocol. In this environment, your management station and any network device you want to manage over the network must have a valid IP address. Valid IP addresses consist of four numbers, 0 to 255, separated by periods. Each address consists of a network portion and host portion. For example, if the access point cannot acquire an IP address from a DHCP server, the default IP address used by the access point, 192.168.1.1, consists of a network portion (192.168.1) and a host portion (1).To access the access point through a Telnet session, you must first set the IP address for the access point, and set the default gateway if you are managing the access point from a different IP subnet. For example:If your corporate network is connected to another network outside your office or to the Internet, you need to apply for a registered IP address. However, if you are attached to an isolated network, then you can use any IP address that matches the network segment to which you are attached.Username: adminPassword:SMC Enterprise AP#SMC-AP#configureSMC-AP(config)#interface ethernetSMC-AP(if-ethernet)#ip address 10.1.0.1 255.255.255.0 10.1.0.254SMC-AP(if-ethernet)#
Entering Commands6-3After you configure the access point with an IP address, you can open a Telnet session by performing these steps.1. From the remote host, enter the Telnet command and the IP address of the device you want to access. 2. At the prompt, enter the user name and system password. The CLI will display the “SMC Enterprise AP#” prompt to show that you are using executive access mode (i.e., Exec). 3. Enter the necessary commands to complete your desired tasks. 4. When finished, exit the session with the “quit” or “exit” command. After entering the Telnet command, the login screen displays:Note: You can open up to four sessions to the device via Telnet.Entering CommandsThis section describes how to enter CLI commands.Keywords and ArgumentsA CLI command is a series of keywords and arguments. Keywords identify a command, and arguments specify configuration parameters. For example, in the command “show interfaces ethernet,” show and interfaces are keywords, and ethernet is an argument that specifies the interface type.Username: adminPassword:SMC-AP#
Command Line Interface6-4You can enter commands as follows:•To enter a simple command, enter the command keyword. •To enter commands that require parameters, enter the required parameters after the command keyword. For example, to set a password for the administrator, enter:SMC Enterprise AP(config)#username smithMinimum AbbreviationThe CLI will accept a minimum number of characters that uniquely identify a command. For example, the command “configure” can be entered as con. If an entry is ambiguous, the system will prompt for further input.Command CompletionIf you terminate input with a Tab key, the CLI will print the remaining characters of a partial keyword up to the point of ambiguity. In the “configure” example, typing con followed by a tab will result in printing the command up to “configure.”Getting Help on CommandsYou can display a brief description of the help system by entering the help command. You can also display command syntax by following a command with the “?” character to list keywords or parameters.Showing CommandsIf you enter a “?” at the command prompt, the system will display the first level of keywords for the current configuration mode (Exec, Global Configuration, or Interface). You can also display a
Entering Commands6-5list of valid keywords for a specific command. For example, the command “show ?” displays a list of possible show commands:The command “show interface ?” will display the following information:Partial Keyword LookupIf you terminate a partial keyword with a question mark, alternatives that match the initial letters are provided. (Remember not to leave a space between the command and question mark.) For example “s?” shows all the keywords starting with “s.”SMC-AP#show ? authentication Show Authentication parameters bootfile Show bootfile name filters Show filters hardware Show hardware version history Display the session history interface Show interface information line TTY line information logging Show the logging buffers radius Show radius server snmp Show snmp statistics sntp Show sntp statistics station Show 802.11 station table system Show system information version Show system versionSMC-AP#showSMC-AP#show interface ? ethernet Show Ethernet interface wireless Show wireless interface <cr>SMC-AP#show interfaceSMC-AP#show s?snmp sntp station systemSMC-AP#show s
Command Line Interface6-6Negating the Effect of CommandsFor many configuration commands you can enter the prefix keyword “no” to cancel the effect of a command or reset the configuration to the default value. For example, the logging command will log system messages to a host server. To disable logging, specify the no logging command. This guide describes the negation effect for all applicable commands.Using Command HistoryThe CLI maintains a history of commands that have been entered. You can scroll back through the history of commands by pressing the up arrow key. Any command displayed in the history list can be executed again, or first modified and then executed. Using the show history command displays a longer list of recently executed commands. Understanding Command ModesThe command set is divided into Exec and Configuration classes. Exec commands generally display information on system status or clear statistical counters. Configuration commands, on the other hand, modify interface parameters or enable certain functions. These classes are further divided into different modes. Available commands depend on the selected mode. You can always enter a question mark “?” at the prompt to display a list of the commands available for the current mode. The command classes and associated modes are displayed in the following table:Class ModeExec PrivilegedConfiguration GlobalInterface-ethernetInterface-wireless
Entering Commands6-7Exec CommandsWhen you open a new console session on access point, the system enters Exec command mode. Only a limited number of the commands are available in this mode. You can access all other commands only from the configuration mode. To access Exec mode, open a new console session with the user name “admin.” The command prompt displays as “SMC Enterprise AP#” for Exec mode. Configuration CommandsConfiguration commands are used to modify access point settings. These commands modify the running configuration and are saved in memory. The configuration commands are organized into three different modes:•Global Configuration - These commands modify the system level configuration, and include commands such as username and password. •Interface-Ethernet Configuration - These commands modify the Ethernet port configuration, and include command such as dns and ip.•Interface-Wireless Configuration - These commands modify the wireless port configuration, and include command such as ssid and authentication.Username: adminPassword: [system login password]SMC-AP#
Command Line Interface6-8To enter the Global Configuration mode, enter the command configure in Exec mode. The system prompt will change to “SMC Enterprise AP(config)#” which gives you access privilege to all Global Configuration commands.To enter Interface mode, you must enter the “interface ethernet,” or “interface wireless a,” or “interface wireless g” command while in Global Configuration mode. The system prompt will change to “SMC Enterprise AP(if-ethernet)#,” or SMC Enterprise AP(if-wireless)” indicating that you have access privileges to the associated commands. You can use the end command to return to the Exec mode.Command Line ProcessingCommands are not case sensitive. You can abbreviate commands and parameters as long as they contain enough letters to differentiate them from any other currently available commands or parameters. You can use the Tab key to complete partial commands, or enter a partial command followed by the “?” character to display a list of possible matches. You can also use the following editing keystrokes for command-line processing:SMC-AP#configureSMC-AP(config)#SMC-AP(config)#interface ethernetSMC-AP(if-ethernet)#Keystroke FunctionCtrl-A Shifts cursor to start of command line. Ctrl-B Shifts cursor to the left one character.Ctrl-C Terminates a task and displays the command prompt.Ctrl-E Shifts cursor to end of command line.Ctrl-F Shifts cursor to the right one character.Ctrl-K Deletes from cursor to the end of the command line.Ctrl-L Repeats current command line on a new line.
Entering Commands6-9Ctrl-N Enters the next command line in the history buffer.Ctrl-P Shows the last command.Ctrl-R Repeats current command line on a new line.Ctrl-U Deletes the entire line.Ctrl-W Deletes the last word typed.Esc-B Moves the cursor backward one word.Esc-D Deletes from the cursor to the end of the word.Esc-F Moves the cursor forward one word.Delete key or backspace key Erases a mistake when entering a command.Keystroke Function
Command Line Interface6-10Command GroupsThe system commands can be broken down into the functional groups shown below.The access mode shown in the following tables is indicated by these abbreviations: GC (Global Configuration), and IC (Interface Configuration.Command Group Description PageGeneral Basic commands for entering configuration mode, restarting the system, or quitting the CLI 6-11System Management Controls user name, password, system logs, browser management options, clock settings, and a variety of other system information6-16SNMP Configures community access strings and trap managers 6-32Flash/File Manages code image or access point configuration files 6-37RADIUS Configures the RADIUS client used with 802.1x authentication 6-42Authentication Configures IEEE 802.1x port access control and address filtering 6-47Filtering Filters communications between wireless clients, controls access to the management interface from wireless clients, and filters traffic using specific Ethernet protocol types6-57Interface Configures connection parameters for the Ethernet port and wireless interface 6-62IAPP Enables roaming between multi-vendor access points 6-95VLANs Configures VLAN membership 6-96
General Commands6-11General CommandsconfigureThis command activates Global Configuration mode. You must enter this mode to modify most of the settings on the access point. You must also enter Global Configuration mode prior to enabling the context modes for Interface Configuration. see “Using the Command Line Interface” on page 6-1Default Setting NoneCommand Mode ExecExample Related Commands end (page 6-12)Command Function Mode Pageconfigure Activates global configuration mode Exec 6-11end Returns to Exec mode GC, IC 6-12exit Returns to the previous configuration mode, or exits the CLI any 6-12ping Sends ICMP echo request packets to another node on the network Exec 6-13reset Restarts the system Exec 6-14show history Shows the command history buffer Exec 6-14show line Shows the configuration settings for the console port Exec 6-15SMC-AP#configureSMC-AP(config)#
Command Line Interface6-12endThis command returns to the previous configuration mode.Default Setting NoneCommand Mode Global Configuration, Interface ConfigurationExample This example shows how to return to the Configuration mode from the Interface Configuration mode:exitThis command returns to the Exec mode or exits the configuration program.Default Setting NoneCommand Mode AnyExample This example shows how to return to the Exec mode from the Interface Configuration mode, and then quit the CLI session:SMC-AP(if-ethernet)#endSMC-AP(config)#SMC-AP(if-ethernet)#exitSMC-AP#exitCLI session with the Access Point is now closedUsername:
General Commands6-13pingThis command sends ICMP echo request packets to another node on the network.Syntax ping <host_name | ip_address> •host_name - Alias of the host. •ip_address - IP address of the host.Default Setting NoneCommand Mode ExecCommand Usage • Use the ping command to see if another site on the network can be reached. • The following are some results of the ping command: –Normal response - The normal response occurs in one to ten seconds, depending on network traffic. –Destination does not respond - If the host does not respond, a “timeout” appears in ten seconds. –Destination unreachable - The gateway for this destination indicates that the destination is unreachable. –Network or host unreachable - The gateway found no corresponding entry in the route table. • Press <Esc> to stop pinging.Example SMC-AP#ping 10.1.0.19192.168.1.19 is aliveSMC-AP#
Command Line Interface6-14resetThis command restarts the system or restores the factory default settings.Syntax reset <board | configuration> •board - Reboots the system. •configuration - Resets the configuration settings to the factory defaults, and then reboots the system.Default Setting NoneCommand Mode ExecCommand Usage When the system is restarted, it will always run the Power-On Self-Test. Example This example shows how to reset the system:show historyThis command shows the contents of the command history buffer.Default Setting NoneCommand Mode ExecSMC-AP#reset boardReboot system now? <y/n>: y
General Commands6-15Command Usage • The history buffer size is fixed at 10 commands.• Use the up or down arrow keys to scroll through the commands in the history buffer.Example In this example, the show history command lists the contents of the command history buffer:show lineThis command displays the console port’s configuration settings.Command Mode ExecExampleThe console port settings are fixed at the values shown below.SMC-AP#show history config exit show historySMC-AP#SMC-AP#show lineConsole Line Information====================================================== databits : 8 parity : none speed : 9600 stop bits : 1======================================================SMC-AP#
Command Line Interface6-16System Management CommandsThese commands are used to configure the user name, password, system logs, browser management options, clock settings, and a variety of other system information.Command Function Mode PageDevice Designation Configures information that uniquely identifies this deviceprompt Customizes the command line prompt GC 6-17system name Specifies the host name for the access point GC 6-18snmp-server contact Sets the system contact string GC 6-33snmp-server location Sets the system location string GC 6-36User Access Configures the user name and password for management accessusername Configures the user name for management access GC 6-19password Specifies the password for management access GC 6-19Web Server Enables management access via a web browserip http port Specifies the port to be used by the web browser interface GC 6-20ip http server Allows the access point to be monitored or configured from a browser GC 6-20Event Logging Controls logging of error messageslogging on Controls logging of error messages GC 6-21logging host Adds a syslog server host IP address that will receive logging messages GC 6-22logging console Initiates logging of error messages to the console GC 6-22
System Management Commands6-17promptThis command customizes the CLI prompt. Use the no form to restore the default prompt.Syntax prompt stringno promptstring - Any alphanumeric string to use for the CLI prompt. (Maximum length: 255 characters)logging level Defines the minimum severity level for event logging GC 6-23logging facility-type Sets the facility type for remote logging of syslog messages GC 6-24show logging Displays the state of logging Exec 6-25System Clock Sets the system clock via an NTP/SNTP server sntp-server ip Specifies one or more time servers GC 6-25sntp-server enable Accepts time from the specified time servers GC 6-26sntp-server date-time Manually sets the system date and time GC 6-27sntp-server daylight-saving Sets the start and end dates for daylight savings time GC 6-28sntp-server timezone Sets the time zone for the access point’s internal clock GC 6-29show sntp Shows current SNTP configuration settings Exec 6-29System Status Displays system configuration and version informationshow system Displays system information Exec 6-30show version Displays version information for the system Exec 6-31Command Function Mode Page
Command Line Interface6-18Default Setting SMC Enterprise APCommand Mode Global ConfigurationExample system nameThis command specifies or modifies the system name for this device. Use the no form to restore the default system name.Syntax system name nameno system namename - The name of this host. (Maximum length: 32 characters)Default Setting Enterprise APCommand Mode Global ConfigurationExample SMC Enterprise AP(config)#prompt RD2RD2(config)#SMC-AP(config)#system name SMC-APSMC-AP(config)#
System Management Commands6-19usernameThis command configures the user name for management access.Syntax username namename - The name of the user. (Length: 3-16 characters, case sensitive)Default Setting smcadminCommand Mode Global ConfigurationExamplepasswordAfter initially logging onto the system, you should set the password. Remember to record it in a safe place. Use the no form to reset the default password.Syntax password passwordno passwordpassword - Password for management access.(Length: 3-16 characters, case sensitive) Default Setting admin Command Mode Global ConfigurationSMC-AP(config)#username bobSMC-AP(config)#
Command Line Interface6-20Example ip http portThis command specifies the TCP port number used by the web browser interface. Use the no form to use the default port.Syntax ip http port port-numberno ip http portport-number - The TCP port to be used by the browser interface. (Range: 1024-65535)Default Setting 80Command Mode Global ConfigurationExampleRelated Commandsip http server (page 6-20)ip http serverThis command allows this device to be monitored or configured from a browser. Use the no form to disable this function.Syntax ip http serverno ip http serverSMC-AP(config)#password smcSMC-AP(config)#SMC-AP(config)#ip http port 769SMC-AP(config)#
System Management Commands6-21Default Setting EnabledCommand Mode Global ConfigurationExample Related Commandsip http port (page 6-20)logging onThis command controls logging of error messages; i.e., sending debug or error messages to memory. The no form disables the logging process.Syntaxlogging onno logging onDefault SettingNoneCommand Mode Global ConfigurationCommand Usage The logging process controls error messages saved to memory. You can use the logging level command to control the type of error messages that are stored in memory. Example SMC-AP(config)#ip http serverSMC-AP(config)#SMC-AP(config)#logging onSMC-AP(config)#
Command Line Interface6-22logging hostThis command specifies a syslog server host that will receive logging messages. Use the no form to remove syslog server host.Syntaxlogging host <host_name | host_ip_address>no logging host •host_name - The name of a syslog server. (Range: 1-20 characters)•host_ip_address - The IP address of a syslog server.Default Setting NoneCommand Mode Global ConfigurationExample logging consoleThis command initiates logging of error messages to the console. Use the no form to disable logging to the console.Syntaxlogging consoleno logging consoleDefault Setting DisabledCommand Mode Global ConfigurationSMC-AP(config)#logging host 10.1.0.3SMC-AP(config)#
System Management Commands6-23Example logging levelThis command sets the minimum severity level for event logging.Syntaxlogging level <Alert | Critical | Error | Warning | Notice | Informational | Debug>Default Setting ErrorCommand Mode Global ConfigurationCommand Usage Messages sent include the selected level down to Alert level.SMC-AP(config)#logging consoleSMC-AP(config)#Level Argument DescriptionAlerts Immediate action neededCritical Critical conditions (e.g., memory allocation, or free memory error - resource exhausted)Error Error conditions (e.g., invalid input, default used)Warning Warning conditions (e.g., return false, unexpected return)Notice Normal but significant condition, such as cold start Informational Informational messages onlyDebug Debugging messages* There are only Critical, Notice, and Informational messages for the current firmware.
Command Line Interface6-24Example logging facility-typeThis command sets the facility type for remote logging of syslog messages.Syntaxlogging facility-type <type>type - A number that indicates the facility used by the syslog server to dispatch log messages to an appropriate service. (Range: 16-23)Default Setting 16Command Mode Global ConfigurationCommand Usage The command specifies the facility type tag sent in syslog messages. (See RFC 3164.) This type has no effect on the kind of messages reported by the access point. However, it may be used by the syslog server to sort messages or to store messages in the corresponding database.Example SMC-AP(config)#logging level alertSMC-AP(config)#SMC-AP(config)#logging facility 19SMC-AP(config)#
System Management Commands6-25show loggingThis command displays the logging configuration.Syntaxshow loggingCommand Mode ExecExamplesntp-server ipThis command sets the IP address of the servers to which SNTP time requests are issued. Use the this command with no arguments to clear all time servers from the current list.Syntaxsntp-server ip <1 | 2> <ip>•1 - First time server.•2 - Second time server.•ip - IP address of an time server (NTP or SNTP). SMC-AP#show loggingLogging Information============================================Syslog State : DisabledLogging Host State : EnabledLogging Console State : DisabledServer Domain name/IP : noneLogging Level : ErrorLogging Facility Type : 16=============================================SMC-AP#
Command Line Interface6-26Default Setting 137.92.140.80192.43.244.18Command Mode Global ConfigurationCommand Usage When SNTP client mode is enabled using the sntp-server enable command, the sntp-server ip command specifies the time servers from which the access point polls for time updates. The access point will poll the time servers in the order specified until a response is received. Example Related Commandssntp-server enable (page 6-26)show sntp (page 6-29)sntp-server enableThis command enables SNTP client requests for time synchronization with NTP or SNTP time servers specified by the sntp-server ip command. Use the no form to disable SNTP client requests.Syntaxsntp-server enable no sntp-server enable Default Setting DisabledSMC-AP(config)#sntp-server ip 10.1.0.19SMC-AP#
System Management Commands6-27Command Mode Global ConfigurationCommand Usage The time acquired from time servers is used to record accurate dates and times for log events. Without SNTP, the access point only records the time starting from the factory default set at the last bootup (i.e., 00:14:00, January 1, 1970).Example Related Commandssntp-server ip (page 6-25)show sntp (page 6-29)sntp-server date-timeThis command sets the system clock.Default Setting 00:14:00, January 1, 1970Command Mode Global ConfigurationExample This example sets the system clock to 17:37 June 19, 2003.SMC-AP(config)#sntp-server enableSMC-AP(config)#SMC-AP#sntp-server date-timeEnter Year<1970-2100>: 2003Enter Month<1-12>: 6Enter Day<1-31>: 19Enter Hour<0-23>: 17Enter Min<0-59>: 37SMC-AP#
Command Line Interface6-28Related Commandssntp-server enable (page 6-26)sntp-server daylight-savingThis command sets the start and end dates for daylight savings time. Use the no form to disable daylight savings time.Syntaxsntp-server daylight-saving no sntp-server daylight-saving Default Setting DisabledCommand Mode Global ConfigurationCommand Usage The command sets the system clock back one hour during the specified period.Example This sets daylight savings time to be used from July 1st to September 1st.SMC-AP(config)#sntp-server daylight-savingEnter Daylight saving from which month<1-12>: 6and which day<1-31>: 1Enter Daylight saving end to which month<1-12>: 9and which day<1-31>: 1SMC-AP(config)#
System Management Commands6-29sntp-server timezoneThis command sets the time zone for the access point’s internal clock.Syntaxsntp-server timezone <hours>hours - Number of hours before/after UTC. (Range: -12 to +12 hours)Default Setting NoneCommand Mode Global ConfigurationCommand Usage This command sets the local time zone relative to the Coordinated Universal Time (UTC, formerly Greenwich Mean Time or GMT), based on the earth’s prime meridian, zero degrees longitude. To display a time corresponding to your local time, you must indicate the number of hours and minutes your time zone is east (before) or west (after) of UTC.Example show sntpThis command displays the current time and configuration settings for the SNTP client.Command ModeExecSMC-AP(config)#sntp-server timezone +8SMC-AP(config)#
Command Line Interface6-30Example show systemThis command displays basic system configuration settings.Default SettingNoneCommand Mode ExecSMC-AP#show sntpSNTP Information=========================================================Service State : EnabledSNTP (server 1) IP : 137.92.140.80SNTP (server 2) IP : 192.43.244.18Current Time : 08 : 04, Jun 20th, 2003Time Zone : +8 (TAIPEI, BEIJING)Daylight Saving : Enabled, from Jun, 1st to Sep, 1st=========================================================SMC-AP#
System Management Commands6-31Exampleshow versionThis command displays the software version for the system.Default SettingNoneCommand Mode ExecExample SMC-AP#show systemSystem Information===========================================================Serial Number : A252014354System Up time : 0 days, 1 hours, 28 minutes, 9 secondsSystem Name : Enterprise APSystem Location :System Contact : ContactSystem Country Code : 99 - NO_COUNTRY_SETMAC Address : 00-30-F1-71-D6-40IP Address : 192.168.1.1Subnet Mask : 255.255.255.0Default Gateway : 0.0.0.0VLAN State : DISABLEDIAPP State : ENABLEDDHCP Client : ENABLEDHTTP Server : ENABLEDHTTP Server Port : 80Slot Status : 802.11g onlySoftware Version : v2.0.0===========================================================SMC-AP#SMC-AP#show versionVersion v2.0.0SMC-AP#
Command Line Interface6-32SNMP CommandsControls access to this access point from management stations using the Simple Network Management Protocol (SNMP), as well as the hosts that will receive trap messages.snmp-server communityThis command defines the community access string for the Simple Network Management Protocol. Use the no form to remove the specified community string.Syntaxsnmp-server community string [ro | rw]no snmp-server community string•string - Community string that acts like a password and permits access to the SNMP protocol. (Maximum length: 23 characters, case sensitive)Command Function Mode Pagesnmp-server community Sets up the community access string to permit access to SNMP commands GC 6-32snmp-server contact Sets the system contact string GC 6-33snmp-server enable server Enables SNMP service and traps GC 6-34snmp-server host Specifies the recipient of an SNMP notification operation GC 6-35snmp-server location Sets the system location string GC 6-36show snmp Displays the status of SNMP communications Exec 6-37
SNMP Commands6-33•ro - Specifies read-only access. Authorized management stations are only able to retrieve MIB objects. •rw - Specifies read/write access. Authorized management stations are able to both retrieve and modify MIB objects.Default Setting • public - Read-only access. Authorized management stations are only able to retrieve MIB objects.• private - Read/write access. Authorized management stations are able to both retrieve and modify MIB objects.Command Mode Global ConfigurationCommand Usage If you enter a community string without the ro or rw option, the default is read only.Example snmp-server contactThis command sets the system contact string. Use the no form to remove the system contact information.Syntaxsnmp-server contact stringno snmp-server contactstring - String that describes the system contact. (Maximum length: 255 characters)Default Setting ContactSMC-AP(config)#snmp-server community alpha rwSMC-AP(config)#
Command Line Interface6-34Command Mode Global ConfigurationExample Related Commandssnmp-server location (page 6-36)snmp-server enable serverThis command enables SNMP management access and also enables this device to send SNMP traps (i.e., notifications). Use the no form to disable SNMP service and trap messages.Syntax snmp-server enable serverno snmp-server enable serverDefault Setting EnabledCommand Mode Global ConfigurationCommand Usage • This command enables both authentication failure notifications and link-up-down notifications. • The snmp-server host command specifies the host device that will receive SNMP notifications. Example SMC-AP(config)#snmp-server contact PaulSMC-AP(config)#SMC-AP(config)#snmp-server enable serverSMC-AP(config)#
SNMP Commands6-35Related Commandssnmp-server host (page 6-35)snmp-server host This command specifies the recipient of an SNMP notification. Use the no form to remove the specified host.Syntaxsnmp-server host <host_ip_address | host_name> <community-string>no snmp-server host•host_ip_address - IP of the host (the targeted recipient). •host_name - Name of the host. (Range: 1-20 characters)•community-string - Password-like community string sent with the notification operation. Although you can set this string using the snmp-server host command by itself, we recommend that you define this string using the snmp-server community command prior to using the snmp-server host command. (Maximum length: 23 characters)Default Setting Host Address: NoneCommunity String: publicCommand Mode Global ConfigurationCommand Usage The snmp-server host command is used in conjunction with the snmp-server enable server command to enable SNMP notifications.
Command Line Interface6-36Example Related Commandssnmp-server enable server (page 6-34)snmp-server locationThis command sets the system location string. Use the no form to remove the location string.Syntaxsnmp-server location textno snmp-server locationtext - String that describes the system location. (Maximum length: 20 characters)Default Setting NoneCommand Mode Global ConfigurationExample Related Commandssnmp-server contact (page 6-33)SMC-AP(config)#snmp-server host 10.1.19.23 batmanSMC-AP(config)#SMC-AP(config)#snmp-server location WC-19SMC-AP(config)#
Flash/File Commands6-37show snmpThis command displays the SNMP configuration settings.Command Mode ExecExampleFlash/File CommandsThese commands are used to manage the system code or configuration files.SMC-AP#show snmpSNMP Information============================================Service State : EnableCommunity (ro) : *****Community (rw) : *****Location : WC-19Contact : PaulTraps : EnabledHost Name/IP : 10.1.19.23Trap Community : *****=============================================SMC-AP#Command Function Mode Pagebootfile Specifies the file or image used to start up the system GC 6-38copy Copies a code image or configuration between flash memory and a FTP/TFTP serverExec 6-39delete Deletes a file or code image Exec 6-40dir Displays a list of files in flash memory Exec 6-41
Command Line Interface6-38bootfileThis command specifies the image used to start up the system.Syntaxbootfile <filename>filename - Name of the image file.Default Setting NoneCommand Mode ExecCommand Usage • The file name should not contain slashes (\ or /), the leading letter of the file name should not be a period (.), and the maximum length for file names is 32 characters. (Valid characters: A-Z, a-z, 0-9, “.”, “-”, “_”)• If the file contains an error, it cannot be set as the default file. ExampleSMC-AP#bootfile smc-img.binSMC-AP#
Flash/File Commands6-39copy This command copies a boot file, code image, or configuration file between the access point’s flash memory and a FTP/TFTP server. When you save the configuration settings to a file on a FTP/TFTP server, that file can later be downloaded to the access point to restore system operation. The success of the file transfer depends on the accessibility of the FTP/TFTP server and the quality of the network connection. Syntaxcopy <ftp | tftp> filecopy config <ftp | tftp>•ftp - Keyword that allows you to copy to/from an FTP server.•tftp - Keyword that allows you to copy to/from a TFTP server.•file - Keyword that allows you to copy to/from a flash memory file. •config - Keyword that allows you to upload the configuration file from flash memory. Default Setting NoneCommand Mode ExecCommand Usage • The system prompts for data required to complete the copy command. • Only a configuration file can be uploaded to an FTP/TFTP server, but every type of file can be downloaded to the access point.•The destination file name should not contain slashes (\ or /), the leading letter of the file name should not be a period (.), and the maximum length for file names on the FTP/TFTP
Command Line Interface6-40server is 255 characters or 32 characters for files on the access point. (Valid characters: A-Z, a-z, 0-9, “.”, “-”, “_”)• Due to the size limit of the flash memory, the access point supports only two operation code files.• The system configuration file must be named “syscfg” in all copy commands.Example The following example shows how to upload the configuration settings to a file on the TFTP server:The following example shows how to download a configuration file: deleteThis command deletes a file or image.Syntaxdelete filenamefilename - Name of the configuration file or image name.Default Setting NoneSMC-AP#copy config tftpTFTP Source file name:syscfgTFTP Server IP:192.168.1.19SMC-AP#SMC-AP#copy tftp file1. Application image2. Config file3. Boot block imageSelect the type of download<1,2,3>: [1]:2TFTP Source file name:syscfgTFTP Server IP:192.168.1.19SMC-AP#
Flash/File Commands6-41Command Mode ExecCaution: Beware of deleting application images from flash memory. At least one application image is required in order to boot the access point. If there are multiple image files in flash memory, and the one used to boot the access point is deleted, be sure you first use the bootfile command to update the application image file booted at startup before you reboot the access point.Example This example shows how to delete the test.cfg configuration file from flash memory.Related Commandsbootfile (page 6-38)dir (page 6-41)dirThis command displays a list of files in flash memory.Command Mode ExecCommand Usage File information is shown below:SMC-AP#delete test.cfgAre you sure you wish to delete this file? <y/n>:SMC-AP#Column Heading DescriptionFile Name The name of the file.Type (2) Operation Code and (5) Configuration fileFile Size The length of the file in bytes.
Command Line Interface6-42Example The following example shows how to display all file information:RADIUS ClientRemote Authentication Dial-in User Service (RADIUS) is a logon authentication protocol that uses software running on a central server to control access for RADIUS-aware devices to the network. An authentication server contains a database of credentials, such as users names and passwords, for each wireless client that requires access to the access point.SMC-AP#dirFile Name Type File Size-------------------------- ---- -----------dflt-img.bin 2 1044140syscfg 5 16860syscfg_bak 5 16860zz-img.bin 2 1044140 1048576 byte(s) availableSMC-AP#Command Function Mode Pageradius-server address Specifies the RADIUS server GC 6-43radius-server port Sets the RADIUS server network port GC 6-43radius-server key Sets the RADIUS encryption key GC 6-44radius-server retransmit Sets the number of retries GC 6-44radius-server timeout Sets the interval between sending authentication requests GC 6-45show radius Shows the current RADIUS settings Exec 6-46
RADIUS Client6-43radius-server addressThis command specifies the primary and secondary RADIUS servers. Syntaxradius-server address [secondary] <host_ip_address | host_name>•secondary - Secondary server.•host_ip_address - IP address of server.•host_name - Host name of server. (Range: 1-20 characters)Default Setting NoneCommand Mode Global ConfigurationExample radius-server portThis command sets the RADIUS server network port. Syntaxradius-server [secondary] port <port_number>•secondary - Secondary server.•port_number - RADIUS server UDP port used for authentication messages. (Range: 1024-65535)Default Setting 1812Command Mode Global ConfigurationSMC-AP(config)#radius-server address 192.168.1.25SMC-AP(config)#
Command Line Interface6-44Example radius-server keyThis command sets the RADIUS encryption key. Syntax radius-server [secondary] key <key_string>•secondary - Secondary server.•key_string - Encryption key used to authenticate logon access for client. Do not use blank spaces in the string. (Maximum length: 20 characters)Default Setting DEFAULTCommand Mode Global ConfigurationExample radius-server retransmitThis command sets the number of retries. Syntaxradius-server [secondary] retransmit number_of_retries•secondary - Secondary server.•number_of_retries - Number of times the access point will try to authenticate logon access via the RADIUS server. (Range: 1 - 30)SMC-AP(config)#radius-server port 181SMC-AP(config)#SMC-AP(config)#radius-server key greenSMC-AP(config)#
RADIUS Client6-45Default Setting 3Command Mode Global ConfigurationExample radius-server timeoutThis command sets the interval between transmitting authentication requests to the RADIUS server. Syntax radius-server [secondary] timeout number_of_seconds•secondary - Secondary server.•number_of_seconds - Number of seconds the access point waits for a reply before resending a request. (Range: 1-60)Default Setting 5Command Mode Global ConfigurationExample SMC-AP(config)#radius-server retransmit 5SMC-AP(config)#SMC-AP(config)#radius-server timeout 10SMC-AP(config)#
Command Line Interface6-46show radiusThis command displays the current settings for the RADIUS server.Default SettingNoneCommand Mode ExecExample SMC-AP#show radiusRadius Server Information========================================IP : 192.168.1.25Port : 181Key : *****Retransmit : 5Timeout : 10========================================Radius Secondary Server Information========================================IP : 0.0.0.0Port : 1812Key : *****Retransmit : 3Timeout : 5========================================SMC-AP#
802.1x Port Authentication6-47802.1x Port AuthenticationThe access point supports IEEE 802.1x access control for wireless clients. This control feature prevents unauthorized access to the network by requiring a 802.1x client application to submit a user name and password for authentication. Client authentication is then verified via by a RADIUS server using EAPOL (Extensible Authentication Protocol Over LAN) before the access point grants client access to the network.Command Function Mode Page802.1x Configures 802.1x as disabled, supported, or required GC 6-48802.1x broadcast-key- refresh-rateSets the interval at which the primary broadcast keys are refreshed for stations using 802.1x dynamic keyingGC 6-49802.1x session-key- refresh-rate Sets the interval at which unicast session keys are refreshed for associated stations using dynamic keyingGC 6-50802.1x session-timeout Sets the timeout after which a connected client must be re-authenticatedGC 6-51address filter default Sets filtering to allow or deny listed addresses GC 6-51address filter entry Enters a MAC address in the filter table GC 6-52address filter delete Removes a MAC address from the filter table GC 6-53mac- authentication serverSets address filtering to be performed with local or remote options GC 6-54
Command Line Interface6-48802.1xThis command configures 802.1x as optionally supported or as required for wireless clients. Use the no form to disable 802.1x support.Syntax802.1x <supported | required>no 802.1x•supported - Authenticates clients that initiate the 802.1x authentication process. Uses standard 802.11 authentication for all others.•required - Requires 802.1x authentication for all clients.Default SettingDisabledCommand ModeGlobal ConfigurationCommand Usage• When 802.1x is disabled, the access point does not support 802.1x authentication for any station. After successful 802.11 association, each client is allowed to access the network.• When 802.1x is supported, the access point supports 802.1x authentication only for clients initiating the 802.1x mac- authentication session-timeoutSets the interval at which associated clients will be re-authenticated with the RADIUS server authentication databaseGC 6-55show authentication Shows all 802.1x authentication settings, as well as the address filter tableExec 6-56Command Function Mode Page
802.1x Port Authentication6-49authentication process (i.e., the access point does NOT initiate 802.1x authentication). For stations initiating 802.1x, only those stations successfully authenticated are allowed to access the network. For those stations not initiating 802.1x, access to the network is allowed after successful 802.11 association.• When 802.1x is required, the access point enforces 802.1x authentication for all 802.11 associated stations. If 802.1x authentication is not initiated by the station, the access point will initiate authentication. Only those stations successfully authenticated with 802.1x are allowed to access the network.• 802.1x does not apply to the 10/100Base-TX port.Example802.1x broadcast-key-refresh-rateThis command sets the interval at which the broadcast keys are refreshed for stations using 802.1x dynamic keying. Syntax802.1x broadcast-key-refresh-rate <rate>rate - The interval at which the access point rotates broadcast keys. (Range: 0 - 1440 minutes)Default Setting0 (Disabled)Command ModeGlobal ConfigurationSMC-AP(config)#802.1x supportedSMC-AP(config)#
Command Line Interface6-50Command Usage• The access point uses EAPOL (Extensible Authentication Protocol Over LANs) packets to pass dynamic unicast session and broadcast keys to wireless clients. The 802.1x broadcast-key-refresh-rate command specifies the interval after which the broadcast keys are changed. The 802.1x session-key-refresh-rate command specifies the interval after which unicast session keys are changed.• Dynamic broadcast key rotation allows the access point to generate a random group key and periodically update all key-management capable wireless clients.Example802.1x session-key-refresh-rateThis command sets the interval at which unicast session keys are refreshed for associated stations using dynamic keying.Syntax802.1x session-key-refresh-rate <rate>rate - The interval at which the access point refreshes a session key. (Range: 0 - 1440 minutes)Default Setting0 (Disabled)Command ModeGlobal ConfigurationCommand UsageSession keys are unique to each client, and are used to authenticate a client connection, and correlate traffic passing between a specific client and the access point.SMC-AP(config)#802.1x broadcast-key-refresh-rate 5SMC-AP(config)#
802.1x Port Authentication6-51Example802.1x session-timeoutThis command sets the time period after which a connected client must be re-authenticated. Use the no form to disable 802.1x re-authentication.Syntax802.1x session-timeout <seconds>no 802.1x session-timeoutseconds - The number of seconds. (Range: 0-65535)Default0 (Disabled)Command ModeGlobal ConfigurationExampleaddress filter defaultThis command sets filtering to allow or deny listed MAC addresses.Syntaxaddress filter default <allowed | denied>•allowed - Only MAC addresses entered as “denied” in the address filtering table are denied.•denied - Only MAC addresses entered as “allowed” in the address filtering table are allowed.SMC-AP(config)#802.1x session-key-refresh-rate 5SMC-AP(config)#SMC-AP(config)#802.1x session-timeout 300SMC-AP(config)#
Command Line Interface6-52DefaultallowedCommand ModeGlobal ConfigurationExampleRelated Commandsaddress filter entry (page 6-52)show authentication (page 6-56)address filter entryThis command enters a MAC address in the filter table.Syntaxaddress filter entry <mac-address> <allowed | denied>•mac-address - Physical address of client. (Enter six pairs of hexadecimal digits separated by hyphens; e.g., 00-90-D1-12-AB-89.)•allowed - Entry is allowed access.•denied - Entry is denied access.DefaultNoneCommand ModeGlobal ConfigurationCommand Mode• The access point supports up to 1024 MAC addresses.SMC-AP(config)#address filter default deniedSMC-AP(config)#
802.1x Port Authentication6-53• An entry in the address table may be allowed or denied access depending on the global setting configured for the address entry default command.ExampleRelated Commandsaddress filter default (page 6-51)show authentication (page 6-56)address filter deleteThis command deletes a MAC address from the filter table.Syntaxaddress filter delete <mac-address>mac-address - Physical address of client. (Enter six pairs of hexadecimal digits separated by hyphens.)DefaultNoneCommand ModeGlobal ConfigurationExampleRelated Commandsshow authentication (page 6-56)SMC-AP(config)#address filter entry 00-70-50-cc-99-1a allowedSMC-AP(config)#SMC-AP(config)#address filter delete 00-70-50-cc-99-1b SMC-AP(config)#
Command Line Interface6-54mac-authentication serverThis command sets address filtering to be performed with local or remote options. Use the no form to disable MAC address authentication.Syntaxmac-authentication server [local | remote]•local - Authenticate the MAC address of wireless clients with the local authentication database during 802.11 association.•remote - Authenticate the MAC address of wireless clients with the RADIUS server during 802.1x authentication.DefaultlocalCommand ModeGlobal ConfigurationExampleRelated Commandsaddress filter entry (page 6-52)radius-server address (page 6-43)show authentication (page 6-56)SMC-AP(config)#mac-authentication server remoteSMC-AP(config)#
802.1x Port Authentication6-55mac-authentication session-timeoutThis command sets the interval at which associated clients will be re-authenticated with the RADIUS server authentication database. Use the no form to disable reauthentication.Syntaxmac-authentication session-timeout <seconds>seconds - Re-authentication interval. (Range: 0-65535)Default0 (disabled)Command ModeGlobal ConfigurationExampleSMC-AP(config)#mac-authentication session-timeout 1SMC-AP(config)#
Command Line Interface6-56show authenticationThis command shows all 802.1x authentication settings, as well as the address filter table.Command ModeExecExampleSMC-AP#show authenticationAuthentication Information=========================================================MAC Authentication Server : REMOTEMAC Auth Session Timeout Value : 1 secs802.1x : SUPPORTEDBroadcast Key Refresh Rate : 5 minSession Key Refresh Rate : 5 min802.1x Session Timeout Value : 300 secsAddress Filtering : DENIEDSystem Default : DENY addresses not found in filter table.Filter TableMAC Address Status----------------- ----------00-70-50-cc-99-1a DENIED00-70-50-cc-99-1b ALLOWED=========================================================SMC-AP(config)#
Filtering Commands6-57Filtering CommandsThe commands described in this section are used to filter communications between wireless clients, control access to the management interface from wireless clients, and filter traffic using specific Ethernet protocol types. filter local-bridgeThis command disables communication between wireless clients. Use the no form to disable this filtering.Syntaxfilter local-bridgeno filter local-bridgeDefaultDisabledCommand ModeGlobal ConfigurationCommand Function Mode Pagefilter local-bridge Disables communication between wireless clients GC 6-57filter ap-manage Prevents wireless clients from accessing the management interface GC 6-58filter ethernet-type enableChecks the Ethernet type for all incoming and outgoing Ethernet packets against the protocol filtering tableGC 6-59filter ethernet-type protocol Sets a filter for a specific Ethernet type GC 6-60show filter Shows the filter configuration Exec 6-61
Command Line Interface6-58Command UsageThis command can disable wireless-to-wireless communications between clients via the access point. However, it does not affect communications between wireless clients and the wired network.Examplefilter ap-manageThis command prevents wireless clients from accessing the management interface on the access point. Use the no form to disable this filtering.Syntaxfilter ap-manageno filter ap-manageDefaultDisabledCommand ModeGlobal ConfigurationExampleSMC-AP(config)#filter local-bridgeSMC-AP(config)#SMC-AP(config)#filter ap-manageSMC-AP(config)#
Filtering Commands6-59filter ethernet-type enableThis command checks the Ethernet type on all incoming and outgoing Ethernet packets against the protocol filtering table. Use the no form to disable this feature.Syntaxfilter ethernet-type enableno filter ethernet-type enableDefaultDisabledCommand ModeGlobal ConfigurationCommand UsageThis command is used in conjunction with the filter ethernet-type protocol command to determine which Ethernet protocol types are to be filtered.ExampleRelated Commandsfilter ethernet-type protocol (page 6-60)SMC-AP(config)#filter ethernet-type enableSMC-AP(config)#
Command Line Interface6-60filter ethernet-type protocolThis command sets a filter for a specific Ethernet type. Use the no form to disable filtering for a specific Ethernet type.Syntaxfilter ethernet-type protocol <protocol>no filter ethernet-type protocol <protocol>protocol - An Ethernet protocol type. (Options: ARP, RARP, Berkeley-Trailer-Negotiation, LAN-Test, X25-Level-3, Banyan, CDP, DEC XNS, DEC-MOP-Dump-Load, DEC-MOP, DEC-LAT, Ethertalk, Appletalk-ARP, Novell-IPX(old), Novell-IPX(new), EAPOL, Telxon-TXP, Aironet-DDP, Enet-Config-Test)DefaultNoneCommand ModeGlobal ConfigurationCommand UsageUse the filter ethernet-type enable command to enable filtering for Ethernet types specified in the filtering table, or the no filter ethernet-type enable command to disable all filtering based on the filtering table.ExampleRelated Commandsfilter ethernet-type enable (page 6-59)SMC-AP(config)#filter ethernet-type protocol ARPSMC-AP(config)#
Filtering Commands6-61show filtersThis command shows the filter options and protocol entries in the filter table. Command ModeExecExampleSMC-AP#show filtersProtocol Filter Information=========================================================Local Bridge :ENABLEDAP Management :ENABLEDEthernet Type Filter :ENABLEDEnabled Protocol Filters---------------------------------------------------------Protocol: ARP ISO: 0x0806=========================================================SMC-AP#
Command Line Interface6-62Interface CommandsThe commands described in this section configure connection parameters for the Ethernet port and wireless interface.Command Function Mode PageGeneral Interfaceinterface Enters specified interface configuration mode GC 6-65Ethernet Interfacedns primary-server Specifies the primary name server IC-E 6-66dns secondary-server Specifies the secondary name server IC-E 6-66ip address Sets the IP address for the Ethernet interface IC-E 6-67ip dhcp Submits a DHCP request for an IP address IC-E 6-68shutdown Disables the Ethernet interface IC-E 6-69speed-duplex Configures speed and duplex operation IC-E 6-70show interface ethernet Shows the status for the Ethernet interface Exec 6-71Wireless Interfacedescription Adds a description to the wireless interface IC-W 6-71closed-system Closes access to clients without a pre-configured SSIDIC-W 6-72
Interface Commands6-63speed Configures the maximum data rate at which a station can connect to the access pointIC-W 6-73channel Configures the radio channel IC-W 6-74turbo Configures turbo mode to use faster data rate IC-W 6-75ssid Configures the service set identifier IC-W 6-76beacon-interval Configures the rate at which beacon signals are transmitted from the access pointIC-W 6-76dtim-period Configures the rate at which stations in sleep mode must wake up to receive broadcast/multicast transmissionsIC-W 6-77fragmentation-length Configures the minimum packet size that can be fragmentedIC-W 6-78rts-threshold Sets the packet size threshold at which an RTS must be sent to the receiving station prior to the sending station starting communicationsIC-W 6-79authentication Defines the 802.11 authentication type allowed by the access pointIC-W 6-80encryption Defines whether or not WEP encryption is used to provide privacy for wireless communicationsIC-W 6-81Command Function Mode Page
Command Line Interface6-64key Sets the keys used for WEP encryption IC-W 6-82transmit-key Sets the index of the key to be used for encrypting data frames sent between the access point and wireless clientsIC-W 6-83transmit-power Adjusts the power of the radio signals transmitted from the access pointIC-W 6-84turbo Configures turbo mode to use faster data rate IC-Wmax-association Configures the maximum number of clients that can be associated with the access point at the same timeIC-W 6-85multicast-cipher Defines the cipher algorithm used for multicasting IC-W 6-86wpa-clients Defines whether WPA is required or optionally supported for client stationsIC-W 6-87wpa-mode Specifies dynamic keys or a pre-shared key IC-W 6-89wpa-preshared-key Defines a WPA preshared-key value IC-W 6-90wpa-psk-type Defines the type of the preshared-key IC-W 6-91shutdown Disables the wireless interface IC-W 6-92Command Function Mode Page
Interface Commands6-65interfaceThis command configures an interface type and enters interface configuration mode. Syntaxinterface <ethernet | wireless <a | g>>•ethernet - Interface for wired network.•wireless - Interface for wireless clients.•a - 802.11a radio interface.•g - 802.11g radio interface.Default Setting NoneCommand Mode Global Configuration Example To specify the 10/100Base-TX network interface, enter the following command:show interface wireless Shows the status for the wireless interface Exec 6-93show station Shows the wireless clients associated with the access pointExec 6-94SMC-AP(config)#interface ethernet SMC-AP(if-ethernet)#Command Function Mode Page
Command Line Interface6-66dns serverThis command specifies the address for the primary or secondary domain name server to be used for name-to-address resolution. Syntaxdns primary-server <server-address>dns secondary-server <server-address>•primary-server - Primary server used for name resolution.•secondary-server - Secondary server used for name resolution.•server-address - IP address of domain-name server.Default Setting NoneCommand Mode Global ConfigurationCommand Usage The primary and secondary name servers are queried in sequence. ExampleThis example specifies two domain-name servers.Related Commands show interface ethernet (page 6-71)SMC-AP(if-ethernet)#dns primary-server 192.168.1.55SMC-AP(if-ethernet)#dns secondary-server 10.1.0.55SMC-AP(if-ethernet)#
Interface Commands6-67ip address This command sets the IP address for the (10/100Base-TX) Ethernet interface. Use the no form to restore the default IP address.Syntaxip address <ip-address> <netmask> <gateway>no ip address•ip-address - IP address •netmask - Network mask for the associated IP subnet. This mask identifies the host address bits used for routing to specific subnets. •gateway - IP address of the default gatewayDefault Setting IP address: 192.168.1.1Netmask: 255.255.255.0Command Mode Interface Configuration (Ethernet)Command Usage • DHCP is enabled by default. To manually configure a new IP address, you must first disable the DHCP client with the no ip dhcp command.• You must assign an IP address to this device to gain management access over the network or to connect the access point to existing IP subnets. You can manually configure a specific IP address using this command, or direct the device to obtain an address from a DHCP server using the ip dhcp command. Valid IP addresses consist of four numbers, 0 to 255, separated by periods. Anything outside this format will not be accepted by the configuration program.
Command Line Interface6-68ExampleRelated Commandsip dhcp (page 6-68)ip dhcp This command sets the IP address for the currently selected VLAN interface. Use the no form to restore the default IP address.Syntax ip dhcpno ip dhcpDefault Setting EnabledCommand Mode Interface Configuration (Ethernet)Command Usage • You must assign an IP address to this device to gain management access over the network or to connect the access point to existing IP subnets. You can manually configure a specific IP address using the ip address command, or direct the device to obtain an address from a DHCP server using this command. • When you use this command, the access point will begin broadcasting DHCP client requests. The current IP address (i.e., default or manually configured address) will continue to be effective until a DHCP reply is received. Requests will be SMC-AP(config)#interface ethernetEnter Ethernet configuration commands, one per line.SMC-AP(if-ethernet)#ip address 192.168.1.2 255.255.255.0 192.168.1.253SMC-AP(if-ethernet)#
Interface Commands6-69broadcast periodically by this device in an effort to learn its IP address. (DHCP values can include the IP address, subnet mask, and default gateway.) ExampleRelated Commandsip address (page 6-67)shutdown This command disables the Ethernet interface. To restart a disabled interface, use the no form.Syntax shutdownno shutdownDefault Setting Interface enabledCommand Mode Interface Configuration (Ethernet)Command Usage This command allows you to disable the Ethernet port due to abnormal behavior (e.g., excessive collisions), and reenable it after the problem has been resolved. You may also want to disable the Ethernet port for security reasons. SMC-AP(config)#interface ethernetEnter Ethernet configuration commands, one per line.SMC-AP(if-ethernet)#ip dhcpSMC-AP(if-ethernet)#
Command Line Interface6-70Example The following example disables the Ethernet port.speed-duplexThis command configures the speed and duplex mode of a given interface when autonegotiation is disabled. Use the no form to restore the default.Syntax speed-duplex <auto | 10MH | 10MF | 100MF | 100MH>• auto - autonegotiate speed and duplex mode•10MH - Forces 10 Mbps, half-duplex operation•10MF - Forces 10 Mbps, full-duplex operation •100MH - Forces 100 Mbps, half-duplex operation •100MF - Forces 100 Mbps, full-duplex operation Default Setting Auto-negotiation is enabled by default. Command Mode Interface Configuration (Ethernet)Command UsageIf autonegotiation is disabled, the speed and duplex mode must be configured to match the setting of the attached device.Example The following example configures the Ethernet port to 100 Mbps, half-duplex operation.SMC-AP(if-ethernet)#shutdownSMC-AP(if-ethernet)#SMC-AP(if-ethernet)#speed-duplex 100mfSMC-AP(if-ethernet)#
Interface Commands6-71show interface ethernetThis command displays the status for the Ethernet interface.Syntaxshow interface [ethernet]Default Setting Ethernet interfaceCommand Mode ExecExample description This command adds a description to a the wireless interface. Use the no form to remove the description.Syntaxdescription <string>no descriptionstring - Comment or a description for this interface. (Range: 1-80 characters)SMC-AP#show interface ethernetEthernet Interface Information========================================IP Address : 192.168.1.1Subnet Mask : 255.255.255.0Default Gateway : 192.168.1.253Primary DNS : 192.168.1.55Secondary DNS : 10.1.0.55Speed-duplex : 100Base-TX Half DuplexAdmin status : UpOperational status : Up========================================SMC-AP#
Command Line Interface6-72Default Setting NoneCommand Mode Interface Configuration (Wireless)Exampleclosed-systemThis command closes access to clients without a pre-configured SSID. Use the no form to disable this feature.Syntaxclosed-system no closed-systemDefault Setting DisabledCommand Mode Interface Configuration (Wireless)Command Usage When closed system is enabled, the access point will not include its SSID in beacon messages. Nor will it respond to probe requests from clients that do not include a fixed SSID.ExampleSMC-AP(config)#interface wireless gSMC-AP(if-wireless g)#description RD-AP#3SMC-AP(if-wireless g)#SMC-AP(if-wireless g)#closed-systemSMC-AP(if-wireless g)#
Interface Commands6-73speedThis command configures the maximum data rate at which a station can connect to the access point. Syntaxspeed <speed>speed - Maximum access speed allowed for wireless clients. (Options: 1, 2, 5.5, 6, 9, 11, 12, 18, 24, 36, 48, 54 Mbps)Default Setting 54 MbpsCommand Mode Interface Configuration (Wireless)Command Usage The maximum transmission distance is affected by the data rate. The lower the data rate, the longer the transmission distance. Please refer to the table for maximum distances on page A-4.ExampleSMC-AP(if-wireless g)#speed 6SMC-AP(if-wireless g)#
Command Line Interface6-74channelThis command configures the radio channel through which the access point communicates with wireless clients. Syntaxchannel <channel | auto>•channel - Manually sets the radio channel used for communications with wireless clients. (Range: 802.11a - 36, 40, 44, 48, 52, 56, 60, 64, 149, 153, 157, 161, 165 for normal mode, and 42, 50, 58, 152, 160 for turbo mode; 802.11g - 1 to 11)•auto - Automatically selects an unoccupied channel (if available). Otherwise, the lowest channel is selected.Default Setting Automatic channel selection Command Mode Interface Configuration (Wireless)Command Usage • The available channel settings are limited by local regulations, which determine the number of channels that are available. • When multiple access points are deployed in the same area, be sure to choose a channel separated by at least four channels for 802.11a to avoid having the channels interfere with each other, and at least five channels for 802.11g. You can deploy up to four access points in the same area for 802.11a (e.g., channels 36, 56, 149, 165) and three access points for 802.11g (e.g., channels 1, 6, 11).• For most wireless adapters, the channel for wireless clients is automatically set to the same as that used by the access point to which it is linked.
Interface Commands6-75ExampleturboThis command sets the access point to an enhanced mode (not regulated in IEEE 802.11a) that provides a higher data rate of up to 108 Mbps. Default Setting DisabledCommand Mode Interface Configuration (Wireless - 802.11a)Command Usage • The normal 802.11a wireless operation mode provides connections up to 54 Mbps. Turbo Mode is an enhanced mode (not regulated in IEEE 802.11a) that provides a higher data rate of up to 108 Mbps. Enabling Turbo Mode allows the access point to provide connections up to 108 Mbps.• In normal mode, the access point provides a channel bandwidth of 20 MHz, and supports the maximum number of channels permitted by local regulations (e.g., 11 channels for the United States). In Turbo Mode, the channel bandwidth is increased to 40 MHz to support the increased data rate. However, this reduces the number of channels supported (e.g., 5 channels for the United States).Example SMC-AP(if-wireless g)#channel 1SMC-AP(if-wireless g)#SMC-AP(if-wireless a)#turboSMC-AP(if-wireless a)#
Command Line Interface6-76ssidThis command configures the service set identifier (SSID). Syntaxssid stringstring - The name of a basic service set supported by the access point. (Range: 1 - 32 characters)Default Setting smcCommand Mode Interface Configuration (Wireless)Command Usage Clients that want to connect to the wireless network via an access point must set their SSIDs to the same as that of the access point.Examplebeacon-interval This command configures the rate at which beacon signals are transmitted from the access point. Syntaxbeacon-interval <interval>interval - The rate for transmitting beacon signals. (Range: 20-1000 milliseconds)Default Setting 100SMC-AP(if-wireless g)#ssid RD-AP#3SMC-AP(if-wireless g)#
Interface Commands6-77Command Mode Interface Configuration (Wireless)Command Usage The beacon signals allow wireless clients to maintain contact with the access point. They may also carry power-management information.Exampledtim-period This command configures the rate at which stations in sleep mode must wake up to receive broadcast/multicast transmissions. Syntaxdtim-period <interval>interval - Interval between the beacon frames that transmit broadcast or multicast traffic. (Range: 1-255 beacon frames)Default Setting 2Command Mode Interface Configuration (Wireless)Command Usage • The Delivery Traffic Indication Map (DTIM) packet interval value indicates how often the MAC layer forwards broadcast/multicast traffic. This parameter is necessary to wake up stations that are using Power Save mode.• The DTIM is the interval between two synchronous frames with broadcast/multicast information. The default value of 2 SMC-AP(if-wireless g)#beacon-interval 150SMC-AP(if-wireless g)#
Command Line Interface6-78indicates that the access point will save all broadcast/multicast frames for the Basic Service Set (BSS) and forward them after every second beacon.• Using smaller DTIM intervals delivers broadcast/multicast frames in a more timely manner, causing stations in Power Save mode to wake up more often and drain power faster. Using higher DTIM values reduces the power used by stations in Power Save mode, but delays the transmission of broadcast/multicast frames.Examplefragmentation-length This command configures the minimum packet size that can be fragmented when passing through the access point. Syntaxfragmentation-length <length>length - Minimum packet size for which fragmentation is allowed. (Range: 256-2346 bytes)Default Setting 2346Command Mode Interface Configuration (Wireless)Command Usage • If the packet size is smaller than the preset Fragment size, the packet will not be segmented.• Fragmentation of the PDUs (Package Data Unit) can increase the reliability of transmissions because it increases the probability of a successful transmission due to smaller frame size. If there is significant interference present, or SMC-AP(if-wireless g)#dtim-period 100SMC-AP(if-wireless g)#
Interface Commands6-79collisions due to high network utilization, try setting the fragment size to send smaller fragments. This will speed up the retransmission of smaller frames. However, it is more efficient to set the fragment size larger if very little or no interference is present because it requires overhead to send multiple frames.Examplerts-thresholdThis command sets the packet size threshold at which a Request to Send (RTS) signal must be sent to the receiving station prior to the sending station starting communications.Syntaxrts-threshold <threshold>threshold - Threshold packet size for which to send an RTS. (Range: 0-2347 bytes)Default Setting 2347Command Mode Interface Configuration (Wireless)Command Usage • If the threshold is set to 0, the access point never sends RTS signals. If set to 2347, the access point always sends RTS signals. If set to any other value, and the packet size equals or exceeds the RTS threshold, the RTS/CTS (Request to Send / Clear to Send) mechanism will be enabled.• The access point sends RTS frames to a receiving station to negotiate the sending of a data frame. After receiving an SMC-AP(if-wireless g)#fragmentation-length 512SMC-AP(if-wireless g)#
Command Line Interface6-80RTS frame, the station sends a CTS frame to notify the sending station that it can start sending data. • Access points contending for the wireless medium may not be aware of each other. The RTS/CTS mechanism can solve this “Hidden Node” problem.ExampleauthenticationThis command defines the 802.11 authentication type allowed by the access point. Syntaxauthentication <open | shared>•open - Accepts the client without verifying its identity using a shared key.•shared - Authentication is based on a shared key that has been distributed to all stations.Default Setting openCommand Mode Interface Configuration (Wireless)Command Usage • Shared key authentication can only be used when WEP is enabled with the encryption command, and at least one static WEP key has been defined with the key command. • When using WPA or 802.1x for authentication and dynamic keying, the access point must be set to open.SMC-AP(if-wireless g)#rts-threshold 256SMC-AP(if-wireless g)#
Interface Commands6-81ExampleRelated Commandsencryption (page 6-81)key (page 6-82)encryption This command defines whether or not WEP encryption is used to provide privacy for wireless communications. Use the no form to disable encryption.Syntaxencryption <key-length>no encryptionkey-length - Size of encryption key. (Options: 64, 128, or 152 bits)Default Setting disabledCommand Mode Interface Configuration (Wireless)Command Usage • Wired Equivalent Privacy (WEP) is implemented in this device to prevent unauthorized access to your wireless network. For more secure data transmissions, enable WEP with this command, and set at least one static WEP key with the key command. • The WEP settings must be the same on each client in your wireless network.SMC-AP(if-wireless g)#authentication sharedSMC-AP(if-wireless g)#
Command Line Interface6-82• Note that WEP protects data transmitted between wireless nodes, but does not protect any transmissions over your wired network or over the Internet.ExampleRelated Commandskey (page 6-82)key This command sets the keys used for WEP encryption. Use the no form to delete a configured key.Syntaxkey <index> <size> <type> <value>no key index•index - Key index. (Range: 1-4)•size - Key size. (Options: 64, 128, or 152 bits)•type - Input format. (Options: ASCII, HEX)•value - The key string. For ASCII input, use 5/13 alphanumeric characters for 64/128 bit strings. For HEX input, use 10/26 hexadecimal digits for 64/128 bit strings.Default Setting NoneCommand Mode Interface Configuration (Wireless)Command Usage • To enable Wired Equivalent Privacy (WEP), use the authentication command to select the “shared key” authentication type, use the encryption command to SMC-AP(if-wireless g)#encryption 128SMC-AP(if-wireless g)#
Interface Commands6-83specify the key length, and use the key command to configure at least one key.• If WEP is enabled, all wireless clients must be configured with the same shared keys to communicate with the access point.ExampleRelated Commandsauthentication (page 6-80)encryption (page 6-81)transmit-key This command sets the index of the key to be used for encrypting data frames broadcast or multicast from the access point to wireless clients.Syntaxtransmit-key <index>index - Key index. (Range: 1-4)Default Setting 1Command Mode Interface Configuration (Wireless)Command Usage • If you use WEP key encryption, the access point uses the transmit key to encrypt multicast and broadcast data signals SMC-AP(if-wireless g)#key 1 64 hex 1234512345SMC-AP(if-wireless g)#key 2 128 ascii asdeipadjsipdSMC-AP(if-wireless g)#key 3 64 hex 12345123451234512345123456SMC-AP(if-wireless g)#
Command Line Interface6-84that it sends to client devices. Other keys can be used for decryption of data from clients.• When using IEEE 802.1x, the access point uses a dynamic WEP key to encrypt unicast and broadcast messages to 802.1x-enabled clients. However, because the access point sends the WEP keys during the 802.1x authentication process, these keys do not have to appear in the client’s WEP key list.Example transmit-powerThis command adjusts the power of the radio signals transmitted from the access point.Syntaxtransmit-power <signal-strength>signal-strength - Signal strength transmitted from the access point. (Options: full, half, quarter, eighth, min)Default Setting fullCommand Mode Interface Configuration (Wireless)Command Usage • The “min” keyword indicates minimum power.• The longer the transmission distance, the higher the transmission power required. But to support the maximum number of users in an area, you must keep the power as low as possible. Power selection is not just a trade off between coverage area and maximum supported clients. You also SMC-AP(if-wireless g)#transmit-key 2SMC-AP(if-wireless g)#
Interface Commands6-85have to ensure that high strength signals do not interfere with the operation of other radio devices in your area.Example max-association This command configures the maximum number of clients that can be associated with the access point at the same time.Syntaxmax-association <count>count - Maximum number of associated stations. (Range: 0-64)Default Setting 64Command Mode Interface Configuration (Wireless)Example SMC-AP(if-wireless g)#transmit-power halfSMC-AP(if-wireless g)#SMC-AP(if-wireless g)#max-association 32SMC-AP(if-wireless g)#
Command Line Interface6-86multicast-cipher This command defines the cipher algorithm used for broadcasting and multicasting when using Wi-Fi Protected Access (WPA) security.Syntaxmulticast-cipher <AES | TKIP | WEP>•AES - Advanced Encryption Standard •TKIP - Temporal Key Integrity Protocol •WEP - Wired Equivalent Privacy Default Setting WEPCommand Mode Interface Configuration (Wireless)Command Usage • WPA enables the access point to support different unicast encryption keys for each client. However, the global encryption key for multicast and broadcast traffic must be the same for all clients. This command sets the encryption type that is supported by all clients.• If any clients supported by the access point are not WPA enabled, the multicast-cipher algorithm must be set to WEP.• WEP is the first generation security protocol used to encrypt data crossing the wireless medium using a fairly short key. Communicating devices must use the same WEP key to encrypt and decrypt radio signals. WEP has many security flaws, and is not recommended for transmitting highly sensitive data.• TKIP provides data encryption enhancements including per-packet key hashing (i.e., changing the encryption key on each packet), a message integrity check, an extended initialization vector with sequencing rules, and a re-keying mechanism.
Interface Commands6-87• TKIP defends against attacks on WEP in which the unencrypted initialization vector in encrypted packets is used to calculate the WEP key. TKIP changes the encryption key on each packet, and rotates not just the unicast keys, but the broadcast keys as well. TKIP is a replacement for WEP that removes the predictability that intruders relied on to determine the WEP key. • AES has been designated by the National Institute of Standards and Technology as the successor to the Data Encryption Standard (DES) encryption algorithm, and will be used by the U.S. government for encrypting all sensitive, nonclassified information. Because of its strength, and resistance to attack, AES is also being incorporated as part of the 802.11 standard. Example wpa-clients This command defines whether Wi-Fi Protected Access (WPA) is required or optionally supported for client stations.Syntaxwpa-clients <required | supported>•required - Supports only clients using WPA.•supported - Support clients with or without WPA.Default Setting SupportedCommand Mode Interface Configuration (Wireless)SMC-AP(if-wireless g)#multicast-cipher TKIPSMC-AP(if-wireless g)#
Command Line Interface6-88Command Usage Wi-Fi Protected Access (WPA) provides improved data encryption, which was weak in WEP, and user authentication, which was largely missing in WEP. WPA uses the following security mechanisms.Enhanced Data Encryption through TKIPWPA uses Temporal Key Integrity Protocol (TKIP). TKIP provides data encryption enhancements including per-packet key hashing (i.e., changing the encryption key on each packet), a message integrity check, an extended initialization vector with sequencing rules, and a re-keying mechanism. Enterprise-level User Authentication via 802.1x and EAPTo strengthen user authentication, WPA uses 802.1x and the Extensible Authentication Protocol (EAP). Used together, these protocols provide strong user authentication via a central RADIUS authentication server that authenticates each user on the network before they join it. WPA also employs “mutual authentication” to prevent a wireless client from accidentally joining a rogue network.Example Related Commandswpa-mode (page 6-89)SMC-AP(if-wireless g)#wpa-client requiredSMC-AP(if-wireless g)#
Interface Commands6-89wpa-mode This command specifies whether Wi-Fi Protected Access (WPA) is to use 802.1x dynamic keys or a pre-shared key.Syntaxwpa-mode <dynamic | pre-shared-key>•dynamic - WPA with 802.1x dynamic keys.•pre-shared-key - WPA with a pre-shared key.Default Setting dynamicCommand Mode Interface Configuration (Wireless)Command Usage • When the WPA mode is set to “dynamic,” clients are authenticated using 802.1x via a RADIUS server. Each client has to be WPA-enabled or support 802.1x client software. A RADIUS server must also be configured and be available in the wired network.• In the dynamic mode, keys are generated for each wireless client associating with the access point. These keys are regenerated periodically, and also each time the wireless client is re-authenticated.• When the WPA mode is set to “pre-shared-key,” the key must first be generated and distributed to all wireless clients before they can successfully associate with the access point.Example Related Commandswpa-clients (page 6-87)wpa-preshared-key (page 6-90)SMC-AP(if-wireless g)#wpa-mode pre-shared-keySMC-AP(if-wireless g)#
Command Line Interface6-90wpa-preshared-key This command defines a Wi-Fi Protected Access (WPA) preshared-key.Syntaxwpa-preshared-key <type> <value>•type - Input format. (Options: ASCII, HEX)•value - The key string. For ASCII input, use 5/13 alphanumeric characters for 64/128 bit strings. For HEX input, use 10/26 hexadecimal digits for 64/128 bit strings.Command Mode Interface Configuration (Wireless)Command Usage • To support Wi-Fi Protected Access (WPA) for client authentication, use the wpa-clients command to specify the authentication type, use the wpa-mode command to specify pre-shared-key mode, and use this command to configure one static key.• If WPA is used with pre-shared-key mode, all wireless clients must be configured with the same pre-shared key to communicate with the access point.Example Related Commandswpa-clients (page 6-87)wpa-mode (page 6-89)SMC-AP(if-wireless g)#wpa-preshared-key ASCII agoodsecretSMC-AP(if-wireless g)#
Interface Commands6-91wpa-psk-type This command defines the Wi-Fi Protected Access (WPA) preshared-key type.Syntaxwpa-psk-type <type>type - Input format. (Options: Alphanumeric, HEX)Default SettingHEXCommand Mode Interface Configuration (Wireless)Example Related Commandswpa-preshared-key (page 6-90)SMC-AP(if-wireless a)#wpa-preshared-key ASCII agoodsecretSMC-AP(if-wireless a)#
Command Line Interface6-92shutdown This command disables the wireless interface. Use the no form to restart the interface.Syntax shutdownno shutdownDefault Setting Interface enabledCommand Mode Interface Configuration (Wireless)Example SMC-AP(if-wireless g)#shutdownSMC-AP(if-wireless g)#
Interface Commands6-93show interface wirelessThis command displays the status for the wireless interface.Syntaxshow interface wireless <a | g>•a - 802.11a radio interface.•g - 802.11g radio interface.Command Mode ExecExample SMC-AP#show interface wireless gWireless Interface Information=========================================================----------------Identification---------------------------Description : Enterprise 802.11g Access PointSSID : Enterprise Wireless APChannel : 0 (AUTO)Status : Disable----------------802.11 Parameters------------------------Transmit Power : FULL (5 dBm)Max Station Data Rate : 54MbpsFragmentation Threshold : 2346 bytesRTS Threshold : 2347 bytesBeacon Interval : 100 TUsDTIM Interval : 2 beaconsMaximum Association : 64 stations----------------Security---------------------------------Closed System : DISABLEDMulticast cipher : WEPUnicast cipher : WEPWPA clients : SUPPORTEDEncryption : DISABLEDDefault Transmit Key : 1Static Keys : Key 2: EMPTY Key 3: EMPTY Key 4: EMPTYAuthentication Type : OPEN=========================================================SMC-AP#
Command Line Interface6-94show stationThis command shows the wireless clients associated with the access point.Command Mode ExecExample SMC-AP#show station802.11g Station TableStation Address : 00-04-E2-41-C2-9D Authenticated : TRUE Associated : TRUE Forwarding Allowed : TRUESMC-AP#
IAPP Commands6-95IAPP CommandsThe command described in this section enables the protocol signaling required to ensure the successful handover of wireless clients roaming between different 802.11f-compliant access points. In other words, the 802.11f protocol can ensure successful roaming between access points in a multi-vendor environment.iappThis command enables the protocol signaling required to hand over wireless clients roaming between different 802.11f-compliant access points. Use the no form to disable 802.11f signaling.Syntaxiappno iappDefaultEnabledCommand ModeGlobal ConfigurationCommand UsageThe current 802.11 standard does not specify the signaling required between access points in order to support clients roaming from one access point to another. In particular, this can create a problem for clients roaming between access points from different vendors. This command is used to enable or disable 802.11f handover signaling between different access points, especially in a multi-vendor environment.ExampleSMC-AP(config)#iappSMC-AP(config)#
Command Line Interface6-96VLAN CommandsThe access point can enable the support of VLAN-tagged traffic passing between wireless clients and the wired network. Up to 64 VLAN IDs can be mapped to specific wireless clients, allowing users to remain within the same VLAN as they move around a campus site.When VLAN is enabled on the access point, a VLAN ID (a number between 1 and 4095) can be assigned to each client after successful authentication using IEEE 802.1x and a central RADIUS server. The user VLAN IDs must be configured on the RADIUS server for each user authorized to access the network. If a user does not have a configured VLAN ID, the access point assigns the user to its own configured native VLAN ID.Note: When VLANs are enabled, the access point’s Ethernet port drops all received traffic that does not include a VLAN tag. To maintain network connectivity to the access point and wireless clients, be sure that the access point is connected to a device port that supports IEEE 802.1Q VLAN tags.The VLAN commands supported by the access point are listed below. Command Function Mode Pagevlan Enables a single VLAN for all traffic GC 6-97native-vlanid Configures the native VLAN for the access point GC 6-98
VLAN Commands6-97vlanThis command enables VLANs for all traffic. Use the no form to disable VLANs.Syntaxvlan enable no vlanDefaultDisabledCommand ModeGlobal ConfigurationCommand Description• When VLANs are enabled, the access point tags frames received from wireless clients with the VLAN ID configured for each client on the RADIUS server. If the VLAN ID has not been configured for a client on the RADIUS server, then the frames are tagged with the access point’s native VLAN ID.• Traffic entering the Ethernet port must be tagged with a VLAN ID that matches the access point’s native VLAN ID, or with a VLAN tag that matches one of the wireless clients currently associated with the access point.ExampleRelated Commandsnative-vlanid (page 6-98)SMC-AP(config)#vlan enableReboot system now? <y/n>: y
Command Line Interface6-98native-vlanid This command configures the native VLAN ID for the access point. Syntaxnative-vlanid <vlan-id>vlan-id - Native VLAN ID. (Range: 1-64)Default Setting 1Command Mode Global ConfigurationCommand Usage When VLANs are enabled on the access point, a VLAN ID (a number between 1 and 4095) can be assigned to each client after successful authentication using IEEE 802.1x and a central RADIUS server. If a wireless client does not have a VLAN ID configured on the RADIUS server, the access point assigns the user to its own configured native VLAN ID (a number between 1 and 64).ExampleRelated Commandsvlan (page 6-97)SMC-AP(config)#native-vlanid 3SMC-AP(config)#
A-1Appendix ATroubleshootingCheck the following items before you contact local Technical Support.1. If wireless clients cannot access the network, check the following:• Be sure the access point and the wireless clients are configured with the same Service Set ID (SSID).• If authentication or encryption are enabled, ensure that the wireless clients are properly configured with the appropriate authentication or encryption keys.• If authentication is being performed through a RADIUS server, ensure that the clients are properly configured on the RADIUS server.• If authentication is being performed through IEEE 802.1x, be sure the wireless users have installed and properly configured 802.1x client software.• If MAC address filtering is enabled, be sure the client’s address is included in the local filtering database or on the RADIUS server database.• If the wireless clients are roaming between access points, make sure that all the access points and wireless devices in the Extended Service Set (ESS) are configured to the same SSID, and authentication method.
TroubleshootingA-22. If the access point cannot be configured using the Telnet, a web browser, or SNMP software:• Be sure to have configured the access point with a valid IP address, subnet mask and default gateway.• If VLANs are enabled on the access point, the management station should be configured to send tagged frames with a VLAN ID that matches the access point’s native VLAN (default VLAN 1, page 5-13). However, to manage the access point from a wireless client, the AP Management Filter should be disabled (page 5-13). • Check that you have a valid network connection to the access point and that the Ethernet port or the wireless interface that you are using has not been disabled.• If you are connecting to the access point through the wired Ethernet interface, check the network cabling between the management station and the access point. If you are connecting to access point from a wireless client, ensure that you have a valid connection to the access point.• If you cannot connect using Telnet, you may have exceeded the maximum number of concurrent Telnet sessions permitted (i.e, four sessions). Try connecting again at a later time. 3. If you cannot access the on-board configuration program via a serial port connection:• Be sure you have set the terminal emulator program to VT100 compatible, 8 data bits, 1 stop bit, no parity and 9600 bps. • Check that the null-modem serial cable conforms to the pin-out connections provided in Appendix B.
TroubleshootingA-34. If you forgot or lost the password:• Set the access point to its default configuration by pressing the reset button on the back panel for 5 seconds or more. Then use the default user name “smcadmin” with the password “admin” to access the management interface.5. If all other recovery measure fail, and the access point is still not functioning properly, take any of these steps:• Reset the access point’s hardware using the console interface, web interface, or through a power reset.• Reset the access point to its default configuration by pressing the reset button on the back panel for 5 seconds or more. Then use the default user name “smcadmin” with the password “admin” to access the management interface.
TroubleshootingA-4Maximum Distance TableImportant NoticeMaximum distances posted below are actual tested distance thresholds. However, there are many variables such as barrier composition and construction and local environmental interference that may impact your actual distances and cause you to experience distance thresholds far lower than those posted below.Notes: 1. Outdoor Environment: A line-of-sight environment with no interference or obstruction between the access point and clients.2. Indoor Environment: A typical office or home environment with floor to ceiling obstructions between the access point and clients.802.11a Wireless Distance TableSpeed and Distance RangesEnvironment 72 Mbps 54 Mbps 48 Mbps 36 Mbps 24 Mbps 18 Mbps 12 Mbps 9 Mbps 6 MbpsOutdoors140 m 131 ft85 m 279 ft250 m 820 ft310 m 1016 ft400 m 1311 ft445 m 1459 ft455 m 1492 ft465 m 1525 ft510 m 1672 ftIndoors220 m 66 ft 25 m 82 ft 35 m 115 ft 40 m 131 ft45 m 148 ft50 m 164 ft55 m 180 ft66 m 216 ft70 m 230 ft802.11b Wireless Distance TableSpeed and Distance RangesEnvironment 11 Mbps 5.5 Mbps 2 Mbps 1 MbpsOutdoors1300 m 984 ft 465 m 1525 ft 500 m 1639 ft 515 m 1689 ftIndoors260 m 197 ft 70 m 230 ft 83 m 272 ft 85 m 279 ft802.11g Wireless Distance TableSpeed and Distance RangesEnvironment 54 Mbps 48 Mbps 36 Mbps 24 Mbps 18 Mbps 12 Mbps 11 Mbps 9 Mbps 6 Mbps 5 Mbps 2 Mbps 1 MbpsOutdoors182 m 269 ft 100 m 328 ft 300 m984 ft 330 m1082 ft 350 m1148 ft 450 m1475 ft 470 m 1541 ft 485 m 1590 ft 495 m 1623 ft 510 m 1672 ft 520 m 1705 ft 525 m 1722 ftIndoors220 m66 ft 25 m82 ft 35 m115 ft 43 m141 ft 50 m164 ft 57 m187 ft 66 m216 ft 71 m233 ft 80 m262 ft 85 m279 ft 90 m295 ft 93 m305 ft
B-1Appendix BCables and PinoutsTwisted-Pair Cable Assignments Caution: DO NOT plug a phone jack connector into the RJ-45 port. Use only twisted-pair cables with RJ-45 connectors that conform with FCC standards.For 10/100BASE-TX connections, a twisted-pair cable must have two pairs of wires. Each wire pair is identified by two different colors. For example, one wire might be red and the other, red with white stripes. Also, an RJ-45 connector must be attached to both ends of the cable. Caution: Each wire pair must be attached to the RJ-45 connectors in a specific orientation. (See “Straight-Through Wiring” on page B-3 and “Crossover Wiring” on page B-3 for an explanation.)The following figure illustrates how the pins on the RJ-45 connector are numbered. Be sure to hold the connectors in the same orientation when attaching the wires to the pins.1881
Cables and PinoutsB-210/100BASE-TX Pin AssignmentsUse unshielded twisted-pair (UTP) or shielded twisted-pair (STP) cable for RJ-45 connections: 100-ohm Category 3 or better cable for 10 Mbps connections, or 100-ohm Category 5 or better cable for 100 Mbps connections. Also be sure that the length of any twisted-pair connection does not exceed 100 meters (328 feet).The RJ-45 port on the access point is wired with MDI pinouts. This means that you must use crossover cables for connections to PCs or servers, and straight-through cable for connections to switches or hubs. However, when connecting to devices that support automatic MDI/MDI-X pinout configuration, you can use either straight-through or crossover cable.10/100BASE-TX MDI and MDI-X Port PinoutsPin MDI-X Signal Name MDI Signal Name1 Receive Data plus (RD+) Transmit Data plus (TD+)2 Receive Data minus (RD-) Transmit Data minus (TD-)3 Transmit Data plus (TD+) Receive Data plus (RD+)6 Transmit Data minus (TD-) Receive Data minus (RD-)4,5,7,8 Not used Not usedNote: The “+” and “-” signs represent the polarity of the wires that make up each wire pair.
Twisted-Pair Cable AssignmentsB-3Straight-Through WiringBecause the 10/100 Mbps port on the access point uses an MDI pin configuration, you must use “straight-through” cable for network connections to hubs or switches that only have MDI-X ports. However, if the device to which you are connecting supports auto-MDIX operation, you can use either “straight-through” or “crossover” cable.Crossover WiringBecause the 10/100 Mbps port on the access point uses an MDI pin configuration, you must use “crossover” cable for network connections to PCs, servers or other end nodes that only have MDI ports. However, if the device to which you are connecting supports auto-MDIX operation, you can use either “straight-through” or “crossover” cable.White/Orange StripeOrangeWhite/Green StripeGreen1234567812345678EIA/TIA 568B RJ-45 WiringStandard10/100BASE-TX Straight-through CableEnd A End BWhite/Orange StripeOrangeWhite/Green StripeGreen1234567812345678EIA/TIA 568B RJ-45 WiringStandard10/100BASE-TX Crossover CableEnd A End B
Cables and PinoutsB-4Console Port Pin AssignmentsThe DB-9 DCE serial port on the front panel of the SMC2555W-AG is used to connect to the access point for out-of-band console configuration. The on-board menu-driven configuration program can be accessed from a terminal, or a PC running a terminal emulation program. The pin assignments used to connect to the serial port are provided in the following tables.Wiring Map for Serial Cable Signal (serial port) Pin Signal (management console port)Unused 1 UnusedTXD (transmit data) 2 RXD (receive data)RXD (receive data) 3 TXD (transmit data)Unused 4 UnusedGND (ground) 5 GND (ground)Unused 6 UnusedCTS (clear to send) 7 RTS (request to send)RTS (request to send) 8 CTS (clear to send)Unused 9 UnusedNote: The left hand column pin assignments are for the female DB-9 connector on the access point. Pin 2 (TXD or “transmit data”) must emerge on the management console’s end of the connection as RXD (“receive data”). Pin 7 (CTS or “clear to send”) must emerge on the management console’s end of the connection as RTS (“request to send”).
Console Port Pin AssignmentsB-5Serial Cable Signal Directions for DB-9 PortsSerial Cable Signal Directions for DB-25 PortsDB-9 to DB-9 AP Terminal or PC123456789123456789DB-9 to DB-25 AP Terminal or PC12345678983220764522ReservedReservedReservedReservedReservedReservedReservedReserved
Cables and PinoutsB-6
C-1Appendix CSpecificationsGeneral SpecificationsMaximum Channels802.11a:US & Canada: 13 (normal mode), 5 (turbo mode)Japan: 4 (normal mode), 1 (turbo mode)ETSI: 11 channels (normal mode), 4 (turbo mode)802.11g:FCC/IC: 1-11, ETSI: 1-13, France: 10-13, MKK: 1-14Maximum Clients64Operating RangeSee “Maximum Distance Table” on page A-4Data Rate802.11a:Normal Mode: 6, 9, 12, 18, 24, 36, 48, 54 Mbps per channelTurbo Mode: 12, 18, 24, 36, 48, 72, 96, 108 Mbps per channel802.11g: 6, 9, 11, 12, 18, 24, 36, 48, 54 Mbps per channel802.11b: 1, 2, 5.5, 11 Mbps per channelModulation Type802.11a: BPSK, QPSK, 16-QAM, 64-QAM802.11g: CCK, BPSK, QPSK, OFDM802.11b: CCK, BPSK, QPSKNetwork ConfigurationInfrastructure
SpecificationsC-2Operating Frequency802.11a:5.15 ~ 5.25 GHz (lower band) US/Canada, Japan5.25 ~ 5.35 GHz (middle band) US/Canada5.725 ~ 5.825 GHz (upper band) US/Canada5.50~ 5.70 GHz Europe802.11b:2.4 ~ 2.4835 GHz (US, Canada, ETSI)2.4 ~ 2.497 GHz (Japan)Power supplyInput: 100-240 AC, 50-60 HzOutput: 3.3 VDC, 4APower consumption: 13.2 wattsPoE (DC)Input voltage: 48 volts, 0.27A, 12.96 wattsNote: Power can also be provided to the access point through the Ethernet port based on IEEE 802.3af Power over Ethernet (PoE) specifications. When both PoE is provided and the adapter is plugged in, PoE will be turned off.Physical Size21.83 x 13.73 x 3.27 cm (8.60 x 5.40 x 1.29 in)Weight0.80 kg (1.76 lbs)LED IndicatorsPWR (Power), Ethernet Link (Ethernet Link/Activity), .11a and .11g (Wireless Link/Activity)Network ManagementWeb-browser, RS232 console, Telnet, SNMPTemperatureOperating: 0 to 40 °C (32 to 104 °F)Storage: 0 to 70 °C (32 to 158 °F)
General SpecificationsC-3Humidity15% to 95% (non-condensing)CompliancesIEC 61000-4-2/3/4/6/11EMC Compliance (Class B)FCC Class B (US)ICES-003 (Canada)VCCI (Japan)RCR STD-33ARadio Signal CertificationFCC Part 15.247 (2.4GHz)FCC part 15 15.407(b), CISPR 22-96RSS-210 (Canada)EN 55022, EN55024, EN 300.328EN 300 826, EN 61000-3-2, EN61000-3-3ETSI300.328; ETS 300 826 (802.11b)MPT RCR std.33 (D33 1~13 Channel, T66 Channel 14)SafetyCSA/NTRL (CSA 22.2 No. 950 & UL 1950)EN60950 (TÜV/GS), IEC60950 (CB)LVD/EN 60950StandardsIEEE 802.3 10BASE-T, IEEE 802.3u 100BASE-TX, IEEE 802.11a, b, g
SpecificationsC-4SensitivityIEEE 802.11a Sensitivity (GHz - dBm)Modulation/Rates 5.15-5.250 5.25-5.350 5.50-5.700 5.725-5.825BPSK (6 Mbps) -88 -88 -88 -88BPSK (9 Mbps) -87 -87 -87 -87QPSK (12 Mbps) -86 -86 -86 -86QPSK (18 Mbps) -84 -84 -84 -8416 QAM (24 Mbps) -82 -81 -81 -8116 QAM (36 Mbps) -80 -79 -78 -7864 QAM (48 Mbps) -73 -73 -73 -7364QAM(54 Mbps) -70 -70 -69 -67IEEE 802.11gData Rate Sensitivity (dBm) 6 Mbps -889 Mbps -8712 Mbps -8617 Mbps -8524 Mbps -8136 Mbps -7748 Mbps -7254 Mbps -70IEEE 802.11bData Rate Sensitivity (dBm) 1 Mbps -932 Mbps -905.5 Mbps -9011 Mbps -87
General SpecificationsC-5Transmit Power IEEE 802.11a Maximum Output Power (GHz - dBm)Data Rate 5.15-5.250 5.25-5.350 5.50-5.700 5.725-5.8256 Mbps 17 17 17 179 Mbps 17 17 17 1712 Mbps 17 17 17 178 Mbps 17 17 17 1724 Mbps 17 17 17 1736 Mbps 17 17 17 1748 Mbps 17 17 17 1754 Mbps 12 17 17 16IEEE 802.11g Maximum Output Power (GHz - dBm)Data Rate 2.412 2.417~2.467 2.4726 Mbps 20 20 189 Mbps 20 20 1812 Mbps 20 20 1818 Mbps 20 20 1824 Mbps 20 20 1836 Mbps 18 19 1748 Mbps 17 16 1554 Mbps 15 14 13IEEE 802.11b Maximum Output Power (GHz - dBm)Data Rate 2.412 2.417~2.467 2.4721 Mbps 15 16 152 Mbps 15 16 155.5 Mbps 15 16 1511 Mbps 15 16 15
SpecificationsC-6
Glossary-1Glossary10BASE-TIEEE 802.3 specification for 10 Mbps Ethernet over two pairs of Category 3 or better UTP cable.100BASE-TXIEEE 802.3u specification for 100 Mbps Fast Ethernet over two pairs of Category 5 or better UTP cable.Access PointAn internetworking device that seamlessly connects wired and wireless networks. Access points attached to a wired network, support the creation of multiple radio cells that enable roaming throughout a facility.Ad HocA group of computers connected as an independent wireless network, without an access point.Advanced Encryption Standard (AES)An encryption algorithm that implements symmetric key cryptography. AES provides very strong encryption using a completely different ciphering algorithm to TKIP and WEP.AuthenticationThe process to verify the identity of a client requesting network access. IEEE 802.11 specifies two forms of authentication: open system and shared key.
GlossaryGlossary-2Backbone The core infrastructure of a network. The portion of the network that transports information from one central location to another central location where it is unloaded onto a local system.Basic Service Set (BSS)A set of 802.11-compliant stations and an access point that operate as a fully-connected wireless network.BeaconA signal periodically transmitted from the access point that is used to identify the service set, and to maintain contact with wireless clients.Broadcast KeyBroadcast keys are sent to stations using 802.1x dynamic keying. Dynamic broadcast key rotation is often used to allow the access point to generate a random group key and periodically update all key-management capable wireless clients.CSMA/CACarrier Sense Multiple Access with Collision Avoidance.Dynamic Host Configuration Protocol (DHCP)Provides a framework for passing configuration information to hosts on a TCP/IP network. DHCP is based on the Bootstrap Protocol (BOOTP), adding the capability of automatic allocation of reusable network addresses and additional configuration options.EncryptionData passing between the access point and clients can use encryption to protect from interception and evesdropping.
GlossaryGlossary-3Extended Service Set (ESS)More than one wireless cell can be configured with the same Service Set Identifier to allow mobile users can roam between different cells with the Extended Service Set.Extensible Authentication Protocol (EAP)An authentication protocol used to authenticate network clients. EAP is combined with IEEE 802.1x port authentication and a RADIUS authentication server to provide “mutual authentication” between a client, the access point, and the a RADIUS serverEthernetA popular local area data communications network, which accepts transmission from computers and terminals.File Transfer Protocol (FTP)A TCP/IP protocol used for file transfer. Hypertext Transfer Protocol (HTTP)HTTP is a standard used to transmit and receive all data over the World Wide Web.Internet Control Message Protocol (ICMP)A network layer protocol that reports errors in processing IP packets. ICMP is also used by routers to feed back information about better routing choices.IEEE 802.11aA wireless standard that supports high-speed communications in the 5 GHz band using Orthogonal Frequency Division Multiplexing (OFDM). The standard supports data rates of 6, 12, 24, and 54 Mbps.
GlossaryGlossary-4IEEE 802.11bA wireless standard that supports wireless communications in the 2.4 GHz band using Direct Sequence Spread Spectrum (DSSS). The standard provides for data rates of 1, 2, 5.5, and 11 Mbps.IEEE 802.11gA wireless standard that supports wireless communications in the 2.4 GHz band using supports high-speed communications in the 5 GHz band using Orthogonal Frequency Division Multiplexing (OFDM). The standard provides for data rates of 6, 9, 11, 12, 18, 24, 36, 48, 54 Mbps. IEEE 802.11g is also backward compatible with IEEE 802.11b.IEEE 802.1xPort Authentication controls access to the switch ports by requiring users to first enter a user ID and password for authentication. InfrastructureAn integrated wireless and wired LAN is called an infrastructure configuration.Inter Access Point Protocol (IAPP)A protocol that specifies the wireless signaling required to ensure the successful handover of wireless clients roaming between different 802.11f-compliant access points.Local Area Network (LAN)A group of interconnected computer and support devices.MAC AddressThe physical layer address used to uniquely identify network nodes.
GlossaryGlossary-5Network Time Protocol (NTP)NTP provides the mechanisms to synchronize time across the network. The time servers operate in a hierarchical-master-slave configuration in order to synchronize local clocks within the subnet and to national time standards via wire or radio. Open SystemA security option which broadcasts a beacon signal including the access point’s configured SSID. Wireless clients can read the SSID from the beacon, and automatically reset their SSID to allow immediate connection to the nearest access point. Orthogonal Frequency Division Multiplexing (ODFM)OFDM/ allows multiple users to transmit in an allocated band by dividing the bandwidth into many narrow bandwidth carriers.Power over Ethernet (PoE)A specification for providing both power and data to low-power network devices using a single Category 5 Ethernet cable. PoE provides greater flexibility in the locating of access point’s and network devices, and significantly decreased installation costs.RADIUSA logon authentication protocol that uses software running on a central server to control access to the network.RoamingA wireless LAN mobile user moves around an ESS and maintains a continuous connection to the infrastructure network.RTS ThresholdTransmitters contending for the medium may not be aware of each other. RTS/CTS mechanism can solve this “Hidden Node
GlossaryGlossary-6Problem.” If the packet size is smaller than the preset RTS Threshold size, the RTS/CTS mechanism will NOT be enabled.Service Set Identifier (SSID)An identifier that is attached to packets sent over the wireless LAN and functions as a password for joining a particular radio cell; i.e., Basic Service Set (BSS). Session KeySession keys are unique to each client, and are used to authenticate a client connection, and correlate traffic passing between a specific client and the access point.Shared KeyA shared key can be used to authenticate each client attached to a wireless network. Shared Key authentication must be used along with the 802.11 Wireless Equivalent Privacy algorithm. Simple Network Management Protocol (SNMP)The application protocol in the Internet suite of protocols which offers network management services.Simple Network Time Protocol (SNTP)SNTP allows a device to set its internal clock based on periodic updates from a Network Time Protocol (NTP) server. Updates can be requested from a specific NTP server, or can be received via broadcasts sent by NTP servers.Temporal Key Integrity Protocol (TKIP)A data encryption method designed as a replacement for WEP. TKIP avoids the problems of WEP static keys by dynamically changing data encryption keys.
GlossaryGlossary-7Trivial File Transfer Protocol (TFTP)A TCP/IP protocol commonly used for software downloads.Virtual LAN (VLAN)A Virtual LAN is a collection of network nodes that share the same collision domain regardless of their physical location or connection point in the network. A VLAN serves as a logical workgroup with no physical barriers, and allows users to share information and resources as though located on the same LAN. Wi-Fi Protected AccessWPA employs 802.1x as its basic framework for user authentication and dynamic key management to provide an enhanced security solution for 802.11 wireless networks.Wired Equivalent Privacy (WEP)WEP is based on the use of security keys and the popular RC4 encryption algorithm. Wireless devices without a valid WEP key will be excluded from network traffic.WPA Pre-shared Key (PSK)PSK can be used for small office networks that may not have the resources to configure and maintain a RADIUS server, WPA provides a simple operating mode that uses just a pre-shared password for network access.
GlossaryGlossary-8
Index-1Numerics802.11g 6-65AAdvanced Encryption Standard See AESAES 5-38antennas, positioning 2-2authentication 5-9, 6-80configuring 5-9, 6-80MAC address 5-10, 6-51, 6-52type 4-9, 5-31, 6-72BBasic Service Set See BSSbeaconinterval 5-28, 6-76rate 5-28, 6-77BOOTP 6-67, 6-68BSS 3-3Ccableassignments B-1crossover B-3straight-through B-3channel 5-27, 6-74channels, maximum C-1Clear To Send See CTSCLI 6-1command modes 6-6clients, maximum C-1closed system 6-72command line interface See CLIcommunity name, configuring 5-16, 6-32community string 5-17, 6-32configuration settings, saving or restoring 5-21, 6-39configuration, initial setup 4-1console port 1-5connecting 2-3pin assignments B-4required settings 4-2crossover cable B-3CSMA/CA 1-1CTS 5-28, 6-79Ddata rate, options C-1device status, displaying 5-40, 6-30DHCP 4-8, 5-5, 5-6, 6-67, 6-68distances, maximum A-4DNS 5-6, 6-66Domain Name Server See DNSdownloading software 5-19, 6-39DTIM 5-28, 6-77Dynamic Host Configuration Protocol See DHCPEEAP 5-36, 6-88encryption 5-31, 5-33, 5-36, 6-81Ethernetcable 2-2port 1-6event logs 5-44, 6-25Extensible Authentication Protocol See EAPIndex
IndexIndex-2Ffactory defaultsrestoring 5-21, 6-14filter 5-13, 6-51address 5-9, 6-51between wireless clients 5-15, 6-57local bridge 5-15, 6-57local or remote 5-9, 6-54management access 5-15, 6-58protocol types 5-15, 6-59VLANs 5-14, 6-96firmwaredisplaying version 5-20, 6-31upgrading 5-19, 5-20, 6-39fragmentation 6-78Ggateway address 4-3, 5-6, 6-2, 6-67Hhardware version, displaying 6-31IIAPP 6-95IEEE 802.11a 1-1, 5-25, 6-65configuring interface 5-26, 6-65maximum data rate 5-28, 6-73radio channel 5-27, 6-74IEEE 802.11b 5-25IEEE 802.11f 6-95IEEE 802.11g 5-25configuring interface 5-29, 6-65maximum data rate 5-30, 6-73radio channel 5-30, 6-74IEEE 802.1x 5-36, 6-47configuring 5-11, 6-47initial setup 4-1installationhardware 2-1mounting 2-1IP addressBOOTP/DHCP 6-67, 6-68configuring 4-3, 4-8, 5-5, 6-67, 6-68LLED indicators 1-4lock, Kensington 2-1logmessages 5-23, 5-44, 6-22server 5-22, 6-22loginCLI 6-1web 4-5logon authenticationRADIUS client 5-10, 6-42MMAC address, authentication 5-10, 6-51, 6-52maximum data rate 5-28, 5-30, 6-73802.11a interface 5-28, 6-73802.11g interface 5-30, 6-73maximum distances A-4MDI, RJ-45 pin configuration 1-6mounting the access point 2-1multicast cipher 5-39, 6-86
IndexIndex-3Nnetwork topologiesinfrastructure 3-3infrastructure for roaming 3-4OOFDM 1-1open system 4-9, 5-31, 6-72operating frequency C-2Ppackage checklist 1-2passwordconfiguring 5-18, 6-19management 5-18, 6-19pin assignmentsconsole port B-4DB-9 port B-4PoE 1-6specifications C-2power connection 2-1Power over Ethernet See PoEpower supply, specifications C-2PSK 5-37, 6-89Rradio channel802.11a interface 5-27, 6-74802.11g interface 5-30, 6-74configuring 4-7RADIUS 5-7, 5-36, 6-42RADIUS, logon authentication 5-10, 6-42Remote Authentication Dial-in User Service See RADIUSRequest to Send See RTSreset 5-21, 6-14reset button 1-6, 5-21resetting the access point 5-21, 6-14restarting the system 5-21, 6-14RJ-45 portconfiguring duplex mode 6-70configuring speed 6-70RTSthreshold 5-28, 5-29, 6-79Ssecurity, options 5-31, 5-32session key 5-11, 5-12, 6-50shared key 4-9, 5-34, 6-82Simple Network Management Protocol See SNMPSimple Network Time Protocol See SNTPSNMP 5-16, 6-32community name 5-16, 6-32community string 6-32enabling traps 5-17, 6-34trap destination 5-17, 6-35trap manager 5-17, 6-35SNTP 5-23, 5-24, 6-25enabling client 5-24, 6-26server 5-24, 6-25softwaredisplaying version 5-19, 5-40, 6-31downloading 5-20, 5-21, 6-39specifications C-1SSID 5-4, 6-76configuring 4-6startup files, setting 6-38station status 5-42, 6-94statusdisplaying device status 5-40, 6-30displaying station status 5-42, 6-94straight-through cable B-3system clock, setting 5-24, 6-27
IndexIndex-4system logenabling 5-22, 6-21server 5-22, 6-22system software, downloading from server 5-19, 6-39TTelnetfor managenet access 6-2Temporal Key Integrity Protocol See TKIPtime zone 5-24, 6-29TKIP 5-37, 6-86transmit power, configuring 5-27, 6-84trap destination 5-17, 6-35trap manager 5-17, 6-35troubleshooting A-1Uupgrading software 5-19, 6-39user name, manager 5-18, 6-19user password 5-18, 6-19VVLANconfiguration 5-14, 6-97native ID 5-14, 6-98WWEP 5-33, 6-81configuring 5-33, 5-34, 6-81shared key 5-34, 6-82Wi-Fi Protected Access See WPAWired Equivalent Protection See WEPWPA 5-36, 6-89authentication over 802.11x 5-38, 6-88pre-shared key 5-38, 5-39, 6-90, 6-91WPA, pre-shared key See PSK
38 TeslaIrvine, CA 92618Phone: (949) 679-8000FOR TECHNICAL SUPPORT, CALL:From U.S.A. and Canada (24 hours a day, 7 days a week)(800) SMC-4-YOU; (949) 679-8000; Fax: (949) 679-1481 From Europe (8:00 AM - 5:30 PM UK Time)44 (0) 118 974 8700; Fax: 44 (0) 118 974 8701INTERNETE-mail addresses:techsupport@smc.comeuropean.techsupport@smc-europe.comsupport@smc-asia.comDriver updates: http://www.smc.com/index.cfm?action=tech_support_drivers_downloadsWorld Wide Web: http://www.smc.comhttp://www.smc-europe.comhttp://www.smc-asia.comFOR LITERATURE OR ADVERTISING RESPONSE, CALL:U.S.A. and Canada: (800) SMC-4-YOU; Fax (949) 679-1481Spain: 34-93-477-4935; Fax 34-93-477-3774UK: 44 (0) 1932 866553; Fax 44 (0) 118 974 8701France: 33 (0) 41 38 32 32; Fax 33 (0) 41 38 01 58Italy: 39 (0) 335 5708602; Fax 39 02 739 14 17Benelux: 31 33 455 72 88; Fax 31 33 455 73 30Central Europe: 49 (0) 89 92861-0; Fax 49 (0) 89 92861-230Nordic: 46 (0) 868 70700; Fax 46 (0) 887 62 62Eastern Europe: 34 -93-477-4920; Fax 34 93 477 3774Sub Saharian Africa: 27 0126610232; Fax 27-11 314 9133North West Africa: 216 71236616; Fax 216 71751415CIS: 7 (095) 789 35 73; Fax 7 (095) 789 35 73PRC (Beijing): 86-10-8251-1550; Fax 86-10-8251-1551PRC (Shanghai): 86-21-6485-9922; Fax 86-21-6495-7924Taiwan: 886-2-8797-8006; Fax 886-2-8797-6288Asia Pacific: (65) 6 238 6556; Fax (65) 6 238 6466Korea: 82-2-553-0860; Fax 82-2-553-7202Japan: 81-3-5645-5715; Fax 81-3-5645-5716Australia: 61-2-8875-7887; Fax 61-2-8875-7777India: 91 22 5696 2790; Fax 91 22 5696 2794Middle East: 97 14 299 4466 Fax 97 14 299 4664Thailand: 66 2 651 8733 Fax 66 2 651 8737If you are looking for further contact information, please visit www.smc.com, www.smc-europe.com, or www.smc-asia.com.Model Number: SMC2555W-AGPub. Number: 150000029500E, E092003-R01

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