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| Document Description | users manual |
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| Filesize | 260.68kB (3258518 bits) |
| Date Submitted | 2006-11-22 00:00:00 |
| Date Available | 2007-01-11 00:00:00 |
| Creation Date | 2006-11-02 14:43:58 |
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| Document Title | WL-320gE UserMan.pdf |
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| Document Author: | weng1 |
Copyright Information
Copyright © 2006 ASUSTeK COMPUTER INC. All Rights Reserved.
No partofthis manual, including the products and software described in it,
may be reproduced, transmitted, transcribed, stored in a retrieval system,
or translated into any 1anguage in any form or by any means, except.
documentation kept by the purchaser for backup purposes, without the
express written permission of ASUSTeK COMPUTER INC. (“ASUS").
ASUS PROVIDES THIS MANUAL “AS IS” WITHOUT WARRANTY
OF ANY KIND, EITHER Efl’RESS OR IMPLIED, INCLUDING BUT
NOT LIMITED TO THE IMPLIED WARRANTIES OR CONDITIONS OF
MERCHANTABILITY OR FITNESS mRAPARTICU'IAR PURPOSE. IN
NO EVENT SHALLASUS, ITS DIRECTORS, OFFICERS, EMPLOYEES
ORAGHVTSBE LIABLEmRANY INDIRECT, SPECIAL INCIDENTAL,
OR CONSEQUENTIAL DAMAGE (INCLUDING DAMAGES FOR
LOSS OF PROFITS, LOSS OF BUSINESS, LOSS OF USE OR DATA,
INIERRU'PTION OF BUSINESSAND THELIKE), EVBJ IFASUS HAS
BEEN ADVISED OF TI-TEPOSSIBILITY OF SUCH DAMAGES ARISING
FROM ANY DEFECT OR ERROR IN THIS MANUAL OR PRODUCT.
Product warranty or service will not be attended if: (I) the product is
repaired, modified or a1tered, uni-s such repair, modification ofa1teration
is authorized in writing by ASUS; or (2) the serial number of the product
is defaced or missin g.
Products and corporate names appearing in the manua1 may or may not
be registered trademarks or copyrights of their respective companies, and
are used only for identifimtinn or aplenat'nn and to the owners' benefit,
without intent to infringe.
SPECIFICATIONS AND INFORMATION CONTAINED IN THIS
MANUAL ARE FURNISHED FOR INFORMATIONAL USE ONLY,
AND ARE SUBJECT TO CHANGEAT ANY TIME WITHOUT NOTICE,
AND SHOULD NOT BE CONSTRUEDASA COMMITMENT BYASUS.
ASUS ASSUMES NO RESPONSIBILITY OR LIABILITY FOR ANY
ERRORS OR INACCURAG'ES THAT MAYAPPEAR INTHIS MANUAL,
INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT.
ASUS 802.11 9 Access Point
Copyright Information
ASUSTeK COMPUTER INC. (Asia-Padfic)
Company Address:
General Telephone:
General Fax:
Web Site Address:
General Email:
15 Li—Tb Rom, Peilon, Taipei 112
+886—2—2894—3447
+886-2-2894 -7798
wwwxnuomjw
info@mm.oon1tw
Technical Support
NIB/Others (Tel):
Notebook (Tel):
D5 ktop/S erver (Tel):
Networking (Tel):
S npport Fax:
+886—2—2890—7121
+886-2 -2894 {5447
+886-2-2890-7123
+886—2—2890—7902
MSG—248904698
ASUS COMPUTER INTERNA'I10NAL(Ame'icfl)
Company Address:
General Fax:
Web Site Address:
General Email:
44370 Nobel Drive, Fremont, CA 94538, USA
+1-510-608-4555
wwwmammeom
tsd@ museum
Technical Support
General S npport:
Notebook (Tel):
S npport Email:
S npport Fax:
+1-502 -995 0883
+1-510-739-3777 x5110
noreboohsd@:5m.corn
+1—502—9338713
ASUS COMPUTER GmbH (Germmy & Austria)
Company Address:
General Telephone:
General Fax:
Web Site Address:
Online Contact:
Harkorl Str. 25, D-40880 Raingen, Germany
+49-2 102 95990
+49—2 102959911
wwwmnsfiomde
wwwmnsfiomdelsalfi
Technical Support
Component Support:
Notebook Support:
Online S npport:
S npport Fax:
+49-2 102 -95990
+492 102959910
wwwmnsfiomdelsnpport
+494 102959911
ASUS 802.11 9 Access Point
Table of Contents
About this user guide .....
Mutational conventions ..
Typographiml conventions
Symbols
1. Introduction
1.1 Welcome.
1.2 Package contents....
1.3 Technical specifimtion
1.4 Wireless Performance
1.4.1 Site Topography.
1.4.2 Range...
1.4.3 Roaming Between ASUSAPS.
1.4.4 Roaming Guidelines ......
1.5 Gettingto Know theWL-320gE
1.5.1 Front panel features
1.5.2 Rear panel features
2. Installation
2.1 Installation Procedure.
2.2 Wall Mounting Option..
3. Software Configuration.
3.1 Configuring the ASUS 302.119 AP
3.2 ASUS WLAN UtIIItIes
3.3 Firmware Restoration .
3.4 Operation Mode....
3.5 Quick Setup in AP mode.
3.6 Quick Setup in Home Gateway Mod
3.7 ereless .....
3.7.1 Interface
3.7.2 Site Survey(AP SCAN
3.7.3 Access Control
3.7.4 RADIUS Setting.
3.7.5 Multi-SSID
3.7.6 Advanced.
3.8 IP Conflg.
3.9 NAT Setting(in Home Gateway Mode}
3.10 Internet Firewall(in Home Gateway Mode)
3.11 System Setup ......
3.11.1 Firmware Upgade
ASUS 802.11 9 Access Point
Table of Contents
3.11.2 SNMP (in AP ITlode)
3.11.3 Setting Management
3.11.4 Factory Default
3.12 Status & Log .....
4. Troubleshooting
Common Problems and Solullons.
Reset to Defaults
5. Appendix .....
Operating frequency rang
Number of operatlng channels...
DSSS PHY frequency channel pla
Glossary
6. Safety Informal on .....
Federal Communimtions Conmission.
FCC Hadlo Frequency Interference Recplrements.
FCC HF Exposure Guldellnes {Access Polnts)
FCC HF Exposure Guidelines (Wireless Cards
Canadian Departmenl d Conmun Iions..
Operation Channel for Different Domains.
France Restricted Frequency Band
Appendix - GNU General Public License.
Licensing Information...
Availability of source code.
The GNU General Public chens
ASUS 802.11 9 Access Point
About this user guide
Notational conventions
~ Acronyms are defined the list time they appear in the text,
~ The ASUS WL-SQOgE is relened I0 as the “ASUS 802.11g WLAN
AP".
Typographical conventions
~ Boldface type text is used for liens you select from menus and drop-
down lists, and commands you lype when prompted by the program.
These items could either be enclosed in < > (open and close brackets)
or " " (open a close quotationslt Boldface type text is also used for
emphasls.
Symbols
This document uses the following icons to call your attention to specific
instructions or explanations
W Note.“ Provides clafl'fimuon anon-essential information on
the current topic
m Definition.“ Explains terms oracvonyms thatmaybe
unfam/I/ar to manyrasders. 77re$e terms are also Included
In the Glossary
E Warning.“ Pro M'des messages of high importance including
messages rein u'ng to personal safety or system integrity
ASUS 802.11 9 Access Point
Chapter 1 - Introduction
1. Introduction
1 .1 Welcome!
Thank you for purchasing the ASUS W'L-320gE Wireless Access Point!
The ASUS WL—S ZOgE Wirelm Access Hint incorporates 802.115; OFDM
techno1o gy designs, which enabls fastest 54Mhps IEEE 802.11 g wiie1ess
lmnsmission and keep compatibility with existing [111113 802.11b devices.
With Afterburner teehno1ogy, you will gel. greet performance enhancement
than standard IEEE 802.11 g. All the pockets over the ail’ are pioteeted by
the strongest wireless security pmwcol - WiFi Protected Access version 2
(WPAZ).
1.2 Package contents
Check the following items in yourWLSZOgE package. Contaetyonideelei
ifany ofthe item is missing ordamaged.
' WL—S ZOgE WLAN Access Point xl
' Quick Start Guide x1
- Power adapter x1 (5 Volts DC, 2 Amp)
' Support CD x1 (utilities and users manual)
' RJAS Ethernet cable x1 (smightethmu gh)
' SdBi dipole antenna x1
ASUS 802.11 9 Access Point
1. In troduclion
Chapter 1 - Introductlon
1.3 Technical Speci |cations
HARDWARE
Ethane! Inleflace 1x R145 in mm BaseT um 3:10 uossover runcnon (MDH
MDLX)
Enema mempue 503 mlemawh Reverse-SW mtsnna
amnesia, mppons amemaawetsly
oumm powel maBrn(Focregnaon)u15 cam (OErngIann) m mg mode
Nh1mB|0|evmce
Powel aflaplel AC mput 1mv~2¢lvfllfilHZJ
Dcunpul SVthax 2Aanenl
mam Smslflmy a "ODE (-97uBm@IMbpsl-Qadaneszpsl-Qfidam@5 5mm;-
manmmms)
G MODE (rwmemmsflaaanemwssmam@w2ans,
Sudanemmms, smmezmmsxmaneawnps,
nuanexfiMmeBn-ewm
PWFL LAN, AIRMH umsmmon), LINK (Wm Assocanon)
MelessAsswalon
- on cuem seemed (APDaeveyflldgeHsps axev made) my
mated n AP vm swung sgm (amlmoae. Rssw >= .65
dam)
4:1an (almlmodc)
< 419 mm m zullns on |Emms
q-
o.
6'
>= 39 mm <~K§ mm C" 20015. C“ mums
>= 433 ohm <~77 arm cn 200": at arms
x??? mm Adwmced.
3. Software
n.
a:
Iii
Home Gateway
In this mode, wesupposeyou usethe Ethema port to connectto Interna through
ADSL or Cable Modem. And, “1818 are many people iu your environment suaie
the mme IPto ISP.
Technically, gateway mode is , NAT iseuabled, WAN connection is allowed by
using PPPoE, or DHCP client1 or static [R In addition, some fmtum which are
useful for home useri such as UPnPand DDNS, are supponed,
Access Point
In Acces Point mode, Ethernet poitand wire!“ devices are set to locate in the
same local area nawork. Those WAN rehlei functions are not supported here
Technically, access point mode is, NAT is disabled, one wan poit and four LAN
pom are bridged togetheri
By default the ASUS 802.11}; APopemtes in Aoces Point mode.
ASUSSMJIgAcoess Point 23
arenmos 1;
or
or
E.
E.
Chapter 3 - Software Configuration
1) Bridge Mode (WDS)
Wireless bridge, also known asWirclm Dish-ibnfion System orWDS, allows
you to connect in one or many Am Rims.
Access Point
APMode configures theASUS 802.11 gAPforaspecific purpose. By defanlg
the ASUS 802.11g AP is m in serve as an “Ace-e Point" where a wireless
mobile client can connect wirelessly m awired Ethernet network.
WDS Only
With WDS, theASUS 802.11}; APcan only communicate with oLherAccess
Points
Hybrid
Hybrid allows you to use theASUS 802.11gAPbolh as an access point and
as a wireless bridge.
Channel
Both Access Points in Wireless Bridge mode must be sei in the same
channel.
Connect to APs in Remote Bridge List (Yes/No)
SeleelYes in eerrreel to m points in are remme blldge list.
24
ASUS 802.11 9 Access Point
/,
Chapter 3 - Software Configuration
Allow anonymous? (Vac/No)
Select Yes to allow users without accounts to connect 2) Client Mode
(Station)
Note: It “Connect to APs in Remote Bridge List” and “Allow Anony-
mous” are both set to “No”, it meals that this AP will not connect
with other APs and therefure the AP mode setting will return to “AP
only”.
2) CIIent Mode(StatIon)
Wireless client(Smtion) mode allows WM 20 gE works as performance
wireless client card as long as tlte device snppons wired connection(witn
Ethernet port), like Game console, PCorNB. Yon need to set np the wireless
setting and encryption before amiationr
Specify the SSID and Encryption oflarget AP accordingly under Wireless -
Interface sub menu then click Fiu ell button to Save and Restnre setting. After
system restarting, connect theEtherueteahle In WL—320 gE ETHERNET port
and other device, then WL—SZOgE will work as wireless client card.
3) Repeater Mode (URE)
Wireless RepeaterMcde allowsWLszongorts as mngeexlender. Yon can
set np the wireless sening nnder Whales—Interface sub menn(same as Client
Mode) the same as root AP then the wirel-s covemge can be boost.
ASUS 802.11 9 Access Point
25
3. Software
a.
ll)
sic/nuns 1;
at
at
E.
E.
Chapter 3 - Software Conflguratlon
3.5 Quick Setup in AP mode
Afteryou log in, you will seetheAsus 802.11gAPHome Page. The default
page will he the Access Pbint Mode
1. Click Next to enter the Quick Setup page. Follow the instructions to set
up the ASUS Access Pbint.
2. Set mode to AP or
WDS(Bridge), Smtion(Client) or
URHchcater).
3. Sening up yourwireless interface
Specify to your wireless router an
SSID (Service Set Identifier),
which is a unique identifier
attached to packets sent over
WLAN. This ldentlher emulals a
password when a device attempts
to communicate with yourwireles
router via WLAN.
If you want to protect transmitted
data, select a Security Level to
enable encryption methods.
Medium: Only users with thesame
WEPkey settings can connect to you rwireIe-s mulerand tmnsmitdata using
64bits or 128bits WEPkey encryption.
High: Only users with thesamewmpreshared key seuings can connect to
your wireless router and transmit data using TKlPeucryption.
26
ASUS 802.11 9 Access Point
Chapter 3 - Software Configuration
4. Input four sets of WEP keys
in the WEP Key fields (10
hexadecimal digits for WEP
64bits, 26 hexadecimal digits for
WEP 128bits). You can also let
the system generate the keys by
inpntting aPassphmse. Record the
Passphmse and the WEP keys in
your notebook, then click Pin'sh.
For example, if we select WEP
54bits encryption mode and
input 11111 as the Passpllrase,
the WEP Keys are generated
automatically.
5. Click Save&Restart to mart the wirelas router and activate the new
settin gs.
3.6 Quick Setup in Home Gateway Mode
To sen quick setup in Gamay mode, click Apply to enterthe “Quick Setup"
page. Follow the instructions to setup the ASUS 802.11g AP.
3. Software
n.
1. Click System Setup -> Operation Mode -> Home Gateway. In the
Home Gateway mode, you will be able to connect to the Internet through
ADSL or cable modem.
2. Click Apply to enter the Gateway mode.
3. Select yourtime zone or flleclosest _
region. Click Next to continue. ..., _,
ASU8802.11gAcoess Point 27
Chapter 3 - Software Configuration
4.. ASUS WL—SZOgE Access Point snpporis five types of ISP services—
cahle, ADSL (PPPoE PPI'R static IPaddm), and Telslm BigPond Since
each service has its own plotocok and standards, therefore, dnrin g the setup
process, there are different identity settings demanded by WL—SZOgE. Select
the correct connection type and click Next to continue,
Cable User
Ifyon are receiving servics from table or otherISPassignin g IP addresses
automatically, p1esse select Cable Modem or otherconnection that gets IP
automatically. Ifyon are nsin g cahieservics, your ISP may have provided
you with hostname, MAC address, and heartbeat server, if true, please fill
these information into the boxes on the setting page; if not, click Next to
skip this step.
enemies 1;
E.
E.
PPPoE User
If you are PPPoE service user, please select the second line, You would be
required to input the username and password provided by your ISP.
28 ASUS 802.11gAcoess Point
Chapter 3 - Software Configuration
PPTP User
Ifyon are nsing PPTP sewics, you wont be asked to inpnt the nsername,
Statlc IP User
Ifyon are nsin g ADSLorotirer connection type that uses smtic 11> add resses,
please select the fonrtn line then inpnt the IPaddress, snbnet mask, and
default gateway provided by yonr ISP. Yon eonid choose to specify cemin
5. Setting np yonr wireies interfwe To senp yonrwireiess interface, follow
the same instructions fmm 3 to 5 as above Confignmting Wireless Interface
in Access Point mode on page 25. You all change to AP or WDS(Bridge),
Station(Client), or URHRepwter) acconiin gly, Click Slve &Restlrt to
restart the wireless mulerand activate the new settings.
ASUS 802.11 9 Access Point
29
3. Software
n.
to
Chapter 3 - Software Conflguratlon
3.7 Wireless
Click an item on the menu to reveal a snbmenn. Follow the
instructions to set up theASUS 802.11gAP. Tipsaredisplayed
when you move your culsoroveran item.
3.7.1 Interface
Mod ssaoov
arenmos 1;
SSI D
The SSID is an identification string of up to 32 ASCII characters that
differentiateoneASUS 802,11gAPorAcce-s Point flom other manufacturers.
The SSID is also referred to as the “ESSID”or “Extended Service Set ID."
You can use the default SSID and radio channel unl‘ more than oneASUS
802.115; AP is deployed in the same am In that case, yon should use a
different SSID and radio channel for each ASUS 802.11g AP. All ASUS
Wireless APs/Routeis and ASUS 802.11g/802,llb WLAN client adapters
must have the same SSID to allow a wireless mobile client to roam. By
default, the SSID is set to “default".
30 ASUS 802.11gAcoess Point
Chapter 3 - Software Configuration
Channel
The 802.11g and 802.11b specifications supports up to 14 overlapping
channels for radio communication. To minimize interference, configure each
ASUS 802.11 g AP to be non—overlapping; select Auto from the Channel
drop-down list to enable the system to selecta clwrchannel during boot up
as your operating channel.
Ensure thatASUS 802.11 gAPs sharing thesamechannel (orchannels which
are close in number) are as faraway from each other as possible, based on
the results ofyoursite survey otthe facility. There is a sitesurvey utility on
the ASUS 802.11 g AP setup CD.
Wireless Mode
This field indicates the 802.11g interface mode. Selecting “Auto" allows
802.11g and 802.11b clients to connectto the ASUS 802.11g AP. Selecting
“54g Only" maximizes performance, hut prevents 802.11h clients from
connecting to the ASUS 802.11g AP. If “54g Protection" is checked, G—
Mode protection of llg traffic is enabled automatically in the presence of
11h traffic.
Authentl catlon Method
This field enables yon to setdifi'erent anthentbat'nn methods which determine
differentencryption schemes. The relationship between Authentication Method,
WPA Encryption, WPA Pre-Sltared Key, W'EPEncryption, hssphrase, and
WE? Keys is listed in the following table [fall your clients support WPA,
using “WPA—PS " is recommended for better security.
Authentication WPAIWEP wwt Pie-Gland Key
Method min] ._lNEP M14
Open or shared key None Not requlred Not requlred
WEP 164 bust 1—64 charaaers 10 hex
WEP 1129 tier 6 hex
Shared key WEP (54 bus) 1“ dtflaQerS 10 hex
EP1128 der 5 h
WPAePSK TKlP only 8433 diaaders Not requlred
EELOnIv NW
WPA TKlP only Not requlred Not requlred
AES onlv No leg mo Not remit [Ed
Radlus Wlth 802 1x Auto Not requtreo Not requlred
wen (64 bits) 1“ mafiaers 10 hex
WEP (120 oils) 1“ otiaaoets 20 hex
ASUS 802.11 9 Access Point
31
3. Software
t:
n.
to
at
GEWOS “8
tn
E.
E.
Chapter 3 - Software Configuration
WPA Encryption
When “WPA—PSK" authentimtion mahod is used, the newly proposed
TKIP (Tempoml Key Integrity Protocol) or AES encryption schemes are
applied.
WPA Preshared Key
Selecting “TKIP” or “AES” in the WPA Encryption, this field is used as
a password to begin the encryption pmcew. Note x to m chmcters are
required.
WEP Encryption
deitionalWEPencryption isapplied when “Open orShared Key", “Shared
Key" or "Radius with 802.1)("aulheuticatiou methods are selected.
NOTE: When “WPA” or “WMPSK” authentication methods are se—
lected, you still can set WEP encryption for those clients that do not
support WPA/WPA-PSK. Please note that Key Index for WEP key is
limited to 2 or 3 when both WPA and WEPencryption are supported
at the same time.
64/128—bit versus 40/1an“
The following section explains low—level (64—bit) and high—level (128—bit)
WEPEncryption schemes:
64—bit WEP Encryption
64—bit WEP and 40—bit WEP are the same encryption method and can
interopemte in a wireless network. This level of WEP encryption nses a
40—bit (10 Hex chamler) encryption scheme as a secret key, which is set
by the nser, and a 24—bit “Initialization Vector” scheme, which is not nnder
user control.
Together these two schemes make a 64-bit (40 + 24) encryption scheme.
Some vendors refer to this level of Wu 40—bit and others refer to this
as 64—bit. ASUS WLAN products usethe term 54—bitwhen referring to this
lflwer level ofencryption.
128-bit WEP Encryption
104-bit WEP and lZ8-bit WEPare the same encryption method and can
interopemte on a wireless network, This level anEPencryption uses a104—
hit (26 Hex chamter) encryption schemeas a secret key which is set by the
user, and a 24—bit “Initialization Vector", which is not under user control.
32
ASUS 802.11 9 Access Point
Chapter 3 - Software Configuration
Together these two schemes make a 1284) it (104 + 24) encryption scheme.
Some vendors refer to this level ofWEPas “14—bit and others refer to this
as 128—bit. ASUS WLAN products use the term 128—bit when referring to
this higher level ofencryptiou.
Passphrase
Selecting ‘WEP—64bits" or ‘WEP—llshiis“ in the Encryption field generates
four WEP keys automatically. A combination of up to 54 letters, numbers,
or symbols is required. Alternatively, lesve this field blank and type in four
WEP keys manually.
WEP-64hit key: 10 hexadecimal digis (0~9. a~f. and A~F)
WEP-12817“ key: 26 hexadecimal digits (0N9, aNf, and ANF)
Note: The ASUS WLAN "ly of products uses the same algorithm
e to generate WEP keys, e Hating the need for users to remember
passwords and to maintain compatibility between products. However,
using this method to genemh WEPkeys is not as secure as manual
assignment.
3. Software
WEP Key
You can seta maximum oft'oanEPkeys. A WEP key is either 10 or 26
hexadecimal digits (0N9, aNl', and A~F) based on whether you select 64bits
or 128bits in the WEPpulldown menu. The ASUS 802.11gAPand ALLof
its wireless cliens MUST have at last lhesame default key.
n.
to
Key Index
The Default Key field lets yon specify which ofthe fonrencryption keys yon
use to tmnsmit dam on your wirel‘ IAN. As long as theASUS 802.11g AP
or wireless mobile client with which you are communicating has the same
key in the same position. you can use any ofthe keys as the default key.
If the ASUS 802.11g AP and ALLof its wireless clients use the same foul-
WEPkeys, select “key romtion" to maximize security. Otherwise, choose
one key in common as the default key.
Network Rotation Key Interval
This field specifies the time interval (in seconds) after which a WPA group
key is changed. Enter ‘0' (zero) to indicate that a periodic key»change is
not required.
ASU8002.119Aooess Point 33
adenmos 1;
an
or
or
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Chapter 3 - Software Configuration
3.7.2 Site Survey( AP SCAN)
Site Survey will help W'L—SZOgE associate appropriate AP while in Station
(Client) or URE(Repmter) mode Make sure WL—S ZOgE in Client or URE
mode, click “AP SCAN” button in Wireless -> Interface will pop up a
window. AP Scan will collect complete AParound information including
MAC, SSID, Security, Channel and RSSI(AP wireless signal strength)
value.
3.7.3
Pull down menu items:
Disable (no info required)
Accept (need to input information)
Reject (need to input information)
To add secnrity, theASUS 802.11gAP has the ahility to only associate with
or not associate with whales mobile clients that have their MAC address
entered into this page.
The default setting of “Disable” will allow any wireless mobile client to
connect. “Accept” will only allow those entered into this page to connect.
"Reject" will prevent those entered into the page from connecting.
34
ASUS 802.11 9 Access Point
Chapter 3 - Software Configuration
Adding a MAC Address
To add a MAC addicss, enter the 12 hemdecimal chaladels into the white box
next to "MAC Addiesw’ and click the Add hnnon. The MAC address will
be placed in the control list below. Only a total of 31 MAC addrsss can
be entered into this page so determine which will be the lesser; those you
wish to accept or those you w'sh to reject and click the appropriate “MAC
Access Mode".
, Note: click the “Finish" bunnn tn saveyour new settings and restart
the ASUS 802.11 9 AP or dick “Save” and restart later.
3.7.4 RADIUS Setting
This section allows you to set up additional pammeters forconnection with
RADIUS Server. It is required while you select “Authentication Method”
as “WPA” or “Radius with 802.1x” in “Wireless -lnterfaee",
Server IP Address - This field specifies the IP address of the RADIUS
server to use for 802.1X wirel‘ authentication and dynamic WEP key
derivation.
Server Port - This field specifis the UDPport n umber used by the RADIUS
server.
Connection Secret - This field specifies the password used to initialize a
RADIUS connection.
Note: click the “Finish" bunon to save your new settings and restart
the ASUS 802.11 9 AP or dick “Save” and restart later.
ASUS 802.11 9 Access Point
35
3. Software
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to
a:
Chapter 3 - Software Conflguratlon
3.7.5 Multi-SSID
We Access Pom can wont with a pnmary wlreiess nawork m0 up to three vmual LOQ‘
Area Networks (VLAN) You rmst enabte MultrSSID md VLAN first then setup each VLAN
property Each VLAN can work wnn as own VLAN ID mdsecunlylevel mdependsnfly
amhmos 1;
-v
E.
E.
36 ASUS 802.11gAcms Point
Chapter 3 - Software Configuration
3.7.6 Advanced
This section allows you to set up
additional palametels for the wireless
router function, We recommend that
you usethedefault values forall items
in this window.
You may also setup operation modes
(APorWDs, Station orURE) here in
addition to Quick Setup.
Hide SSID - By default, "No” 's selected so that wireless mobile users
can see yourASUS 802.11gAP’s SSID and join. If “Yes" is selected, your
ASUS 802.115; AP will not show in site surveys by wirelss mobile clients
and they will haveto manually enleryourASUS 802,11g AP's SSID, Ifyou
want to restrict access to ‘you r”ASUS 802.1] g AP, this is a simple way to
do ithut for security reasons, don’t forgetto change the SSID to something
other than “default".
Set APIsolated . SelectingYs to preventwirelesclient from communicating
with each other.
But. Rate (Mbps) - This field allows you to specify the transmission rate.
Leave on “Auto" to maximize performance velsus dismnce.
Basic Rate Set . This field indiates the hasic rates that wireless clients must
support. Use “1 & 2 Mbps” only when backward compatibility is needed for
some older wireless LAN cards with a maximum hit rate of 2Mbps.
Fragmentation Threshold (256-2346) - Fragmentation is used to divide
802.11 flames into smallerpieces (fmgmeuts) that are sent separately to the
destination. Enable fragmenmtion by satin g aspecific packet size threshold.
If there is an excessive number of coll'sions on the WLAN, experiment
with different fmgmentation values to increase the reliability of flame
tmnsmissions. The default value (2346) is mommended for normal use.
RTS Threshold (0-2347) - The RTS/CTS (Request to Send/Clear to Send)
function is used to minimize collisions among wireless smtions. When
RTS/CPS is enabled, the router refrains from sending a data flame until
another RTS/CTS handshake is complaed. Enable RTS/CTS by setting a
specific packet size threshold. The default value (2347) is recommended.
ASUS 802.11 9 Access Point
37
3. Software
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Chapter 3 - Software Configuration
DTIM Interval (1-255) — DTIM (Delivery Traffic Indication Message) is
a wireless message used to inform clients in waer Saving Nlode when the
system should wake up to receive broadcast and mnlticast messages. Type
the time interval in which the system will broadcast a DTIM for clients in
Power Saving Mode. The default value (3) is recommended
Beacon Interval (1-65535) — This field indicates the time interval
in milliseconds that a system hmadmst packet, or beacon, is sent to
synchronize the wireless mark, The default value (100 milliseconds) is
recommended.
Enable Frame Bursting? - This field allows you to enable frame-burstin g
modeto improve performancewith wireless clients that also snpportframe-
hurstin g.
Radio Power - Radio Power mn be are between 1 to 84 but the default
value is recommended.
Enable WMM — This field allows you to enable WMNI to improve
multimedia tmnsm ission
Enable WMM No-Aeknowledgement — This field allows you to enable
WMNI No—Ack nowledgement
Mode — This field allows yon sa np dit’ferentopemtion modes(APorWDS,
Station or URE) either in AP mode or Gateway mode.
URE - This section allows you set up parameters for URE This section
only works while in URE mode.
SSID - This is the SSID of root AP. WL—3 ZOgE can repeat the signal and
boost the signal coverage while swing in URE mode.
Other secnrity parameters senin g are the same in wireless -> Interfaee.
3B
ASUS 802.11 9 Access Point
Chapter 3 - Software Configuration
3.8 IP Config
Click this item on the menu to reveal asub menu. Follow the
instrnctions to setup the ASUS 802.11g AP. Tips are given
when you move your cursor overeaclt item.
LAN
Yes (no info required)
n—
2 No (need no input information)
~ Click Apply or Finish if you make
any changes.
Get IP Automatlcally
Select Yes (default) or No to ge [P addres automatically from a DHCP
server
Yes
This parameter determines if the ASUS 802i llg AP will send out a DHCP
request during bootup. If you have a DHCPserver on the network, set this
option so that the ASUS 802.11g AP an meive an automatic IP address
assignment
If yon have a DHCP (Dynamic Host Configumt'nn Protocol) server on the
network, then the DHCPserver will aulomatieally mign the ASUS 802.11g AP
an IPaddress when the ASUS 802.1 lg AP is powered up. To determine what IP
address has been asigned to theASUS 802.11g AP, review the lPaddress on the
‘Status” page available on the “Nhin Nlenu”.
No
The ASUS 802.llg APalso accepts a static lPaddress. You may manually
confignre the IP address and subuet mask on the “11> Config" page. Enter
an IP address and a subnet mask in the fiehi pmvided to assign the ASUS
802.11g AP a static IP addres. If you don't know your Gateway setting,
leave it empty (not 0.0.0.0).
ASUS 802.11 9 Access Point
39
3. Software
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Chapter 3 - Software Configuration
3.9 NAT Setting(in Home Gateway Mode)
_ Virtual Sewer allows you m make
servics, like WWW, FTP, provided
by a server in your local network
accessible for ouside users. DDNS
allows users to export host name: to
the Internet through a DDNS service
provider. Each time your ASUS
802.11g AP connect in the Internet
and get an IP address from an ISP,
this function will update your IP
add res in the DDNS service provider
anmmaucany, so that any user on
the Inter-lei can access your sewers
thmughapredefined name registered
in a DDNS service provider.
5»
a;
9?
We
5m
, Note: curreniiy, clienls connechd to DynDNS or 120 are embedded
/ in ASUS 802.119 AP. You cal click Free Trial link behind each DDNS
e sen/ice provider to 5m wiih a free irial account
40 ASU8802.1igAcoess Point
Chapter 3 - Software Configuration
3.10 Internet Firewall(in Home Gateway
Mode)
_ LAN & WAN filter allows you to
- ' block specified packets between
- . , I ' - LAN and WAN in apre—defined Lime
_=-==- interval. URL mm allows you «0
k , ‘ ;; block specific URLauuess from your
’ loml network.
_ "or The onlv Ewernet port m
ASUS 802.119 AP Is used for
WAN connection In "Gateway”
mode. If yuu still hope to config-
ure ASUS 802.119 AP through
Ememet part, please remember
to enable “Web Access from
WAN” in “Internet Firewall - Ba-
sic Contlg“.
3.11 System Setup
Click this item on the menu to reveal asuh menu. Follow the
instructions to setup the ASUS 802.11g AP. Tips are given
when you move your cursor overmh item.
ASUS 802.11 9 Access Point
41
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Home Gateway
5s»
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Chapter 3 - Software Configuration
3.11.1 Firmware Upgrade
This page reports the Flash Code (Hrsnmre) version installed in the ASUS
802.11g AR Periodically, a newFlasll deeis available for LheASUS 802.11g
APs on ASUS’s Web site. You can update the ASUS 802.11 g AP’s Flash
Code using the Firmware Upgrade page under the Advanced Setup menu
ofthe Web Manager. If you areexperiencing a problem with yourASUS
WLANequipmerrt, aTechrrical Support wpresenmtive may ask you to give
your device's Flash Code (Firmware) version.
Note: The firmware upgrade Hes mproximalely 60 to 90 seconds.
When the firmware upgrade is completed, you will be direcled in
the home page.
3.11.2 SNMP (in AP mode)
SNMP is a popular networlr monitoring and management protocol. It
provides network
administmtons with the ability to monitor the status otheAccass Point and
receive
notification of any critical events as they oocur on the Access Point. You
can setup APpmperty for SNMPoontrol 11de in System Setup—> SNMP
wehpage then click Save to apply yonrchange.
ASUS 802.11 9 Access Point
Chapter 3 - Software Conllguratlon
3. Software
c:
This function allows you to save current swings to a file, or load settings
from a file.
Save As a File
Move yourcllrsorovertheHERE link on the weh page. Then click the right
hntten of mouse and select Save As... to save current setting into a file.
Note: When current selfings ae sailed Infie, it will be saved to flash
e as well.
Load From a File
Specify the path ofand name ofthedownloaded file in the New Setting File
below. Then, click Upload lo write the file to. lt takes a few time to finish
the process and then the system will rebooL
New Setting file
Click Browse to locals the file
ASUS 802.11 9 Access Point 43
GEWOS “8
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Chapter 3 - Software Configuration
3.11.4 Factory Default
Restoring Factory Default Settings
Web Manager
You can reset all settings to their factory defaults through the web manager
nsing the “Factory Default" page in “Advanced Setup". Click the Restore
button and wait about 30 seconds before trying to access theASUS 802.11g
AP.
Hardware
You can reset all settings to their factory defaults manually by pushing the
“Restore" button in a hole on the back of the ASUS 802.11g AP while it
is ON. Use a pen Ol' stmightened paper clip to hold the “Restore" button
depressed over 5 seconds until the powerLED on the front ofthe ASUS
802.11g APsmns blinking.
’ Note: You wIII be notlfled when factory default settlngs are restored
while using the web manager.
44
ASUS 802.11 9 Access Point
Chapter 3 - Software Configuration
3.12 Status & Log
Click this item on the menu to reveal asnb menu. Follow the
instructions to setup the ASUS 802.11g AP. Tips are given
when you move your culsor overmh item.
Status
3. Software
c:
System Up Time
Shows how long the ASUS 802.11g AP has been running since the last
bootnp.
ASUS 802.11gAcoess Point 45
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Chapter 4 -Troubleshooting
4. Troubleshooting
The ASUS AP is designed to be vely easy In install and operate. However, if
you experiencedifficulties, usetheinformation in this chapterto help diagnose
and solve problems. If you cannot resolve a problem, contact Technical
Support as listed on the front ofthis manual.
Common Problems and Solutions
Problem
The ASUS AP does not power up:
Solution
- Check for faulty ASUSAPpowersnpply by measuring theoutputvolage
with an electrical test meter.
- Check failed ACsupply (poweroutlet)
Problem
Cannot communicate with the ASUS AP through a wired network
connection.
Solution
' Verify network configuration by ensuring that there are no duplicate IP
addresses. Power down the device in question and ping the assigned IP
address of the device. Ensure no other device responds to that address.
- Check that the cables used have proper pin outs and connectors or use
another LAN cable.
- Check that the hub, swimh, orccmputerthattheAsus AP is connected
and that all devices support lOMbps speed.
This is what you will see if you connect the ASUS 802.11g APto a:
lU/lfIJMbps Hub Pure 100 Mbps Hub
HUD LED m OFF
Access Point (Link) LED ON ON
So you will notknow ifthe connection is had from theASUSAPLink LED
alone, you will have to look at the Hub LED if you are not sure what kind
of hub the ASUS AP is atmched to.
ASUS 802.11 9 Access Point
Chapter 4 -Troub|eshooting
Problem
The ASUS APDevice Discovery still
cannot find or connect to the ASUS
APafter verify in g the IP add res and
LAN cable, changes cannot be made,
or passwo id is lost.
Solution
In case LheASUS AP is inaccexiblq
you can restore the ASUS AP’s faclory default settings. Use a straightened
paper clip to press the button located in the hole on the back oftheASUS
AP and keep it depressed over 5 seconds, The power LED will darken and
then light up when reset is successful.
Reset to Defaults
The following are fictory default value. These values will be present when you
fist meive your the ASUS AP, ifyou push the reset bnnon on the back of the
ASUS AP over 5 sewnds, or ifyon reslnre factory semh gs Lhrou gh theASUS
AP software.
Name Mum
ereless - Interface
SSID default
Channel 6
Enoyptlon (WEP) None
Broadcast SSID No
ereless , Brldge
AP Mode Access Pomt Only
ereless , Access Control
MACAooess Mode D|mbled
ll:1 Conflgr LAN
ll:1 Address 1921681 1
Get IP Address Autornahtally Yes
Subflet Mask 255 255 255 0
Gateway (blank)
System Setup , Password
Operatlon Mode Access Polnt
User Narne acmm
Password admln
ASUS 802.11 9 Access Point
47
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Chapter 4 -Troubleshooting
Problem
My ASUS WLAN Gard will not amociate with the ASUS AP.
Solution
Follow these steps:
1. Nlake sure that your WLAN Card 6 of the same specifications as the
WLAN Access Point.
2. Try to bring the devices cioeertogeher; the ASUS WLAN Card may be
out of mnge oftheASUSAP
3. Confirm that the ASUS AP and ASUS WLAN Card have the same
SSID.
4. Confirm that the ASUS AP and ASUS WLAN Card have the same
Euciyptiou settings, ifenahlerl.
5. Confirm that theASUSAP’sAirand Link LEDs are solid green.
6. Confirm that the authorization table includes the MAC address ofthe
ASUS WLAN Card if “Authorization Table” is enabled.
7. Confirm that the operational mode is “Access Point" mode.
8 Confirm that the ASUS AP and ASUS WLAN Card have the same
preamble mode.
Problem
The throughput seems slow,
Solution
To achieve maximum throughput, verify that your antennas are well—placed,
not behind metal, and do not have too many obstacles between them. If you
move the client closer to the ASUS APand thiou ghpnt increases, you may
want to consider adding a second ASUS APand implementing roaming.
(I!
=-
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to
- Check anten na, connectors and milling.
- Verify network traffic dos not exceed 37% ofbandwidth.
' Check to see that the wired network does not exceed 10 broadcast
messages per second.
' Verify wired network topology and configu mtion.
48 ASUSSMJIgAcoess Point
Chapter 4 -Troub|eshooting
Problem
I annot find the ASUS Al's using the ASUSAP Discovery.
Solution
To configure the ASUS AP thmu gh an ASUS WLAN Card, your computer
must he in the same subnet of the ASUS AP. You cannot find the ASUS
APe with subnet different fit)!“ your computer within the same gateway.
You must change your compnicr in die same subnet as the ASUS AP. The
factory default subnet ofthe ASUS AP is “l92.168.1.1".
Problem
How do I upgrade the firmware on theASUS AP?
Solution
Periodically, a new Flash Code is available for LheASUS APE on the ftp site
alftp://ftp.asus.com. You can updalelheASUS AP's Flash Code using the
software described in this User‘s Manual.
ASUS 802.11 9 Access Paint
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Chapter 5 - Appendix
5. Appendix
Operating frequency range
TheDSSS PHY shall opeme in the frequency mngeof2,4 GHz lo 2.4835
GHz as allocated by regulatory bodies in the USA and Europe or in the 2.471
GHz to 2.497 GHz frequency hand asallocated by regulatory authority in
Japan.
Number of operating channels
The channel centerfrequencies and CH 11) numbers shallheas shown below.
The FCC (US), 1c (Canada), and ErSl (Eumpe) specify operation from
2 4 GHz to 2 4835 GHz Fur Japan, opentinn is specified as 2 471 GHz to
2.497 GHz. France allows operation from 2.4455 GHz to 2.4835 GHz, and
Spain allows operation from 2.445 GHz to 2.475 GHz. For each supponed
regulatory domain. all channels marked with Was" shall be supported,
In a multiple cell network topology, overlapping and/oradjacentcells using
different channels can operate simultaneously without interference if the
disunue between Lhe center freq “encia is allcasLS 0 IVE—IL. Channel 14 shall
he designated specifically for operation in Japan.
50
ASUS 802.11 9 Access Point
Chapter 5 - Appendix
DSSS PHY frequency channel plan
(Regulalory Domains)
CH 1D Frequency X‘ID‘ X‘2Cl‘ X'30' X3? X'BE'
x'40'
FCC 1c ETEH
Spam France MKK
1 2412 MHz Yes Yes Yes ,
, Yes
2 2417 MHZ Yes Yes Yes ,
- YES
3 2422 MHZ Yes Yes Yes ,
, Yes
4 2427 MHZ Yes Yes Yes ,
Yes
5 2432 MHZ Yes Yes Yes ,
, Yes
6 243 7 M HZ Yes Yes Yes -
- YES-
7 2442 MHZ Yes Yes Yes ,
, Yes
8 2447 MHz Yes Yes Yes ,
, Yes
9 2452 MHZ Yes Yes Yes ,
, YES
10 245 7 M Hz Yes Yes Yes Yes
Yes Yes
11 2452 MHZ Yes Yes Yes Yes
Yes Yes
12 2467 MHZ , , Yes Yes
13 2472 MHZ Yes Yes
Yes
14 2484 MHz , ,
Yes
ASUssonIngoess Point 51
5. Appendix
Chapter 5 - Appendix
Glossary
Access Point (AP)
An networking device thatsermlecsly connects wired and wirelss networks.
Access Poine combined with a distributed system support the creation of
multiple radio cells that enahle roaming throughout a facility.
Ad Hoc
Awireless network composed solelyofstat'nns with in mutual communication
range ofwch other (no Access Point).
AES(Advanoe Encryption Smdard)
AES is the Us government's nextegeuemtiou cryptography algorithm,
which will replace DES and 313119 This encryption key protocol is applied in
802.1i sandard to improveWLANsecnrity. AES will require new hardware,
in contrast with TKIP that can he used on existing wirelss devicfs.
Basic Service Area(BSSl
A set ofstations controlled by a single coordination function.
Broadband
A type ofdata tmnsmission in which a single medium (such as cable) carries
several channels ofdata at once.
Channel
An insance of medium use for the purpose of passing protocol data units
that may he used simultaneously, in the same volume of space, with other
instances of medium use (on otherchau nels) by other instances ofthe same
physical layer, with an acceptably low frame ermr latio due to mutual
interference.
Client
A client is the desktop or mobile PC that is connected to your network.
comm (for 802.11a 01 802.119)
Signal power alone is not enough to maintain 802,11b-likedistances in an
802.11a/g environment. To compensate, a new physical—layer encoding
technology was designed that departs from the traditional direct—sequence
technology being deployed today. This technology is called COFDM (coded
OFDM). COFDM was developed specifically for indoor wireless use and
offers performance much superior to that ofspread—spectrum solutions.
COFDM works by breaking one high-speed data carrier into several
52
ASUS 802.11 9 Access Point
Chapter 5 - Appendix
lower—speed subcarritels, which are then transmitted in palallel. Each high—
speed carrier is 20 MHz wide and is broken up into 52 subchannels, each
approximately 300 KHz wide COFDM nss 48 of these subchannels for
data, while the remaining fourare used forenorcorrection. COdeelivers
higher data mtes and a high degreeot' multipath reflection recovery, thanks
to its encoding scheme and enorcorrection.
Each suhcharlrlel in the COFDM implementation is about 300 KHz wide.
At the low end ofthe spwd gradient, BPSK (binary phase shift keying) is
used to encode 125 Kbps ofdataperchannel, resulting in a 6,000—Kbps, or
5 Mbps, data rate. Using quadraturephase shift keying, you can double the
amount ofdata encoded to 250 Kbps per channel, yielding a 12—Mbps data
rate. And by using lé-levelquadratureamplitude modulation encoding 4bits
per hertz, you can achieve a data meet 24 Mbps. The 802.11a/g standard
specifies thatall 802.11a/g—compliantpmducts mustsnpport these basic daa
rates. The sundard also lets the vendorartend the modulation schemebeyond
24 Mbps. Remember, the more hits per cycle (hertz) that are encoded, the
moresusceptiblethesignal will beto interference and fading, and ultimately,
the shorter the tan ge, unless poweroutput is increased,
Device Name
Also known as DHCP client 11) or neworh name. Sometimes provided by
an ISP when using DHCPto assign addr—s.
DHCP (Dynamic Host Configuration Protocol)
This protocol allows a computer (or many computers on your network) to
be automatically assigned a single [Paddres from a DHCP server.
DNS Server Address (Domain Mime Sysmm)
DNS allows Internet host computers to have a domain name and one or
more IP addresses A DNS sewer keeps a database of host computers and
their respective domain names and lPaddre-ses, so that when a user enters
a domain name into the Internet browser, the user is sent to the proper IP
address. The DNS server addres used by the computers on your home
netwotk is the location ofthe DNS serve: your ISP has assigned.
DSL Modem (Digital Subscriber Line)
A DSL modem uses your existing phone lines to transmit data at high
speeds.
Direct-Sequence Spread Spectrum (for 302.11b)
spread spectrum (broadband) uses a narrowband signal to spread the
transmission over a segment of the radio frequency band or spectrum.
ASUS 802.11 9 Access Point
53
5. Appendix
Chapter 5 - Appendix
Directsequence is aspread spectrum technique where the transmitted signal
is spread over a particular frequency range
Directrsequence systems communirate by continuously transmitting a
redundant paflem ofhits called achippiugsequence Each hitoftransmitted
data is mapped into chips and rearranged into a pseudomndom spreading
code to form the chipping sequence, The chipping sequence is combined
with a transmitted dam stream to produce the output signal.
Wireless mobile clienm receiving a direct sequence transmission use the
spreading codeto map the chips within the chipping sequence back into bits
to recreate the original data transmined by tJrewireless device. Intercepting
and decoding a direct-seq uence transmission requ iris a predefined algorithm
to associate the spreading code used by the transmitting wireless device to
the receiving wireless mobile client.
This algorithm is established by TFFF 802.||h specifications The hit
redundancy within the chipping wquence enables the receiving wireless
mohileclientto recreate theoriginal data pattern, even ifbits in the chipping
sequence are corrupted by interference. The ratio ofch ips per bit is called the
spreading ratio. A high spreading rati increases the resistance ofthe signal
to interference. A low spreading mtlo increases the bandwidth available to
the user. The wireless device uss acoustant chip late of llMchips/s for all
data rates, but uses different modulat'mn shaman) encode more bits per chip
at the higher data rates. The wirel‘ device is capable of an 11 Nlbps data
transmission rate, but the coverage area is Iss than a l or 2 Nfbps wireless
device since coverage area decreases as bandwidth increases,
En cryptinn
This provides wireless dam transmisions with a level of security.
Extended Service Set (ESS)
Aset of one or more interconnected basic serv ice set (BSSs) and integrated
local area networks (LANS) can be configured as an Extended Service
Set
ESSID (Extended Service Setlthntifier)
You must have the same 13le entered into the gateway and each of
its wireless cliensr The ESSID is a unique identifier for your wireless
network.
Ethernet
The most widely used LAN acc‘ method, which is defined by the IEEE
802.3 standard. Ethernet is normally a shared media LAN meaning all devices
54
ASUS 802.11 9 Access Point
Chapter 5 - Appendix
on the network segment share tom] bandwidth. Ethernet networks operate
at IOMhps nsing CSMA/CD to rnn over 10—BaseT cables.
Firewall
A firewall determines which information passes in and out of a network.
NAT can create a natural firewall by hiding a local network‘s IP addresses
from the Internet. A Firewall prevents anyoneontside ofyonr network from
accessing your compnter and possibly damaging or viewin g your files.
Galeway
A network point that manages all the data traffic of your network, as well
as to the Internet and connects one network to another,
The Institute oi Electrical and Electronics Engineers. The lEEE sets
standards for networking, includingEthernet LANs. lEEEstandards ensnre
interoperability between systems orutesame type.
IEEE 002.11
IEEE 802.xx is a setofspecifimtions forLANs fiom LheInstituteofElectrical
and Electronic Engineers (IEEE). Nlost wired networks conform to 802.3,
the specification for CSMAICD band Ethernet networks or 802.5, the
specification for token ring networks 802.11 defins thestandaid for wirelss
LANs encompassing three incompatible (non-intelopelable) technologies:
Frequency Hopping Spread Spectrum (FHSS), Direct Sequence Spread
Spectrum (DSSS), and Infrared. 802.11 specifies acarriersense media access
control and physical layer specifirations for l and 2 Mbps wireless LANs.
IEEE 002.11 a (54Mbils/sec)
Compared with 802.11h: The 802.11!) standard was designed to operate
in the 2.4-GHz ISM (Ind ustrial, Scientific and Medical) hand using direct-
sequence spread—spectrum technology, The 802.11a smndard, on the other
hand, was designed to operate in the more recently allocated S—GHz UN'H
(Unlicensed National Information Infmstrntctzni-e) band. And unlike 802.11b,
the 802.11a sandard departs from themditionalspreadrspectrum technology,
instead nsing a frequency division multiplexing sclienie that's intended to
be friendlier to office environments.
The 802.11a sandard, which supports data rates of up to 54 Mbps, is the
Fast Ethernetanalog to 802.11b, which supports dam rates ofup to 11 Mbps.
Like Ethernet and Fast Eihemet. 802.111) and 802.11a use an identical
MAC (Media Access Control). However, while Fast Ethernet nses the same
ASUS 002.11 9 Access Point
55
5. Appendix
Chapter 5 - Appendix
physical—layer encoding scheme as Ethernet (only faster), 802.11a uses an
entirely different encoding scheme railed OPDM (orthogonal frequency
division multiplexing).
The 802.11b spectrum is plagued by satumtion from wireless phones,
microwave ovens and other emerging wireless technologies, such as
Bluetooth. In contrast, 802.11aspectrum is relatively freeofinterference.
The 802.11a standard gains some of its performance from the higher
frequencies atwhich itopenrnes. The hrws ofinformation theory tie frequency,
radiated power and distance togetherin an inverse relationship. Thus, moving
up to the S—GHz spectrum from 2.4 GHz will lead to shonerdistancs, given
the same radiated power and encoding scheme.
Compared with 802.11g: 802.11a isa standard for access points and radio
NICs that is ahmd of 802.11g in the market by about six months. 802.11a
operates in the «1m frequency hand with twelve separate nnn—nverlappin g
channels. As a result yon can have nptotwelveaccss points setto different
channels in the same area without them interfering with each other. This
makes access point channel assignment much easier and significantly
increases the throughput the wireless LAN can deliver within a given area.
In addition, RF interference 's much Iew likely because ofthe less—crowded
5 GHz band.
IEEE 802.11b(11Mbiis/sec)
In 1997, the Institute ofElectricaI and Electronics Engineers (IEEE) adopted
the 802. 11 standard forwireless devices operating in the 2,4 GHz frequency
hand. This standard includes prov isious forthree radio technologies: direct
sequencespread spectrum, frequency hopping spread spectrum, and infrared.
Devices that comply with the 802.11 standard operate at a daa rate ofeither
1 or 2 Mbps.
In 1999, the IEEE created the 802.11!) standard. 802.111) is essentially
identical to the 802.11standani except 802.1") provides for data rates of
up to 11 Mbps for direct sequencespread spectrum devices. Under 802.1113,
direct sequence devices can operate at 11 Mlups, 5.5 Mbps, 2 Mbps, or 1
Mbps. This provides interoperability with ecstiug 802.11 direct sequence
devices that operate only at 2 Mbps.
Directsequence spread spectmm devicsspmd a radio signal overa range of
frequencies. The IEEE 80 Zr llb specification allocates the 2,4 GHz frequency
hand into 14 overlapping opemting Chan nels, Each Channel corresponds to
a different set of frequencies.
IEEE 002.119
802.11g is a proposed (to be finalized) new extension to s02.11h (used in
56
ASUS 802.11 9 Access Point
Chapter 5 - Appendix
majority of wireless IANS today) that broadens 802.11b's dam rates to 54
Mbps within the 2.4 GHz hand nsing oFDM(orthogonal frequency division
multiplexing) technology. 802.11g allows backward compatibility with
802.11h devices but only at 11 Mbps or lower, depending on the range and
presence of obstructio nsr
Infrastructure
Awireless network centered abontan acces point In this environment, the
access point not only provides communimtion with the wired network but
also mediates wireless network traffic in the immediate neighborhood.
IP (Internet Protocolt
The TCP/IP smndard protocol that defines the 11> damgmm as the unit
of information passed across an lnternet and provides the basis for
connectionless pocket delivery service IP includes the ICMP control
and error message protocol m an integral part. It provides the fnnctional
equivalent oflso 051 Network Servics.
IP Address
An IP address is a 32—bit number that identifies each sender or receiver of
information that is sent across the Internet An IP address has two pans:
the identifier of a particular nawork on the Internet and an identifier of
the particular device (which can be a sewer or a workstation) within that
network.
ISM Bands (Industrial, Scientific, aid Medicine Bands)
Radio frequency bands that theFedelal Gunmunicau'ons Commission (FCC)
authorized for wireless LANs. The ISM bands are located at 902 MHz, 2.400
GHz, and 5.7 GHz.
ISP (Internet Service Provider)
An organization that provides accew to the 1nternet. Small ISPs provide
service via modem and ISDN while the larger ones also offer private line
hookups (T1, fractional T1, tee).
LAN (Local Area Network)
Acommrrnications network that serves users within a defined geographical
area. The benefits inclnde thesharingorlnternet access, files and equipment
like printers and storage devices. Special network cahling (10 Base—T) is
often used to connect the PCs togeher.
ASUS 802.11 9 Access Point
57
5. Appendix
Chapter 5 - Appendix
MAC Address (Media Access Control)
A MAC address is the hardware nddres of at device connected to a
network.
NAT (Network Address Translation)
NAT masks a local network‘s group or IP addresses from the external
network, allowing a local network ofcompuuers to sbare a singleISPaccounL
Tkis process allows all oftlre computers on your home network to use one
IP address. This will enable m to the Internet from any computer on
your home network without having to purclrase more 11> addrfsses from
your ISP
NIC (Network Interface Card)
A network adapter inserted inm a computer so that the computer can be
connected to a network. It is responsible for converting data from stored in
the computer to the form tmnsmifled or received.
Packet
A basic message unit for communication across a network. A packet
usually includes routing inforruation, data, and sometimes error detection
information.
PCMCIA (Personal Computer Memory Card International Associalion)
The Personal Computer Memory Card lnlernalionalAssociation (PCMCIA),
develops smndards forPC cards, formerly known as PCMCIA cards. These
cards are available in three types, and are about tbe same length and width
as creditcards. However, the differentwidth ofthe cards ranges in thickness
from 3.3 mm (Type I) to 5.0 mm (Type 11) to 10.5 mm (Type III). Tkese
cards can be used forvarious functions, including memory storage, land line
modems and wireless modems.
PPP (Point-toPoint Protocol)
PPP is a protocol for communimlzion between computers using a serial
interface, typically a personal computer connected by pkone line to a
server.
PPPoE (Point-to-Point Protocol over Ethemet)
Point—to—Pbint Protocol is a method ol'securedam tmnsmission. PPP using
Ethernet to connect to an ISR
Radio Frequency(RF) Terms: GHz, MHz, Hz
The international unit for measuring frequency is Hertz (Hz)v Equivalent“)
the older unit of cycles per second. One megahertz (MHz) is one million
58
ASUS 802.11 9 Access Point
Chapter 5 - Appendix
Hertz. one gigahertz (GHz) is one billion Hertz. The sendard US electrical
power frequency is 50 Hz, theAMhroaderstmdio frequency band is 0.5515
MHz, the FNIbroadcast radio frequency hand is 88—108 MHz, and wireless
802.11 LANs operate at 2.4 (31-11.
HIP (Routing Information Protocol)
Routing Information ProtocoltRIPl) is defined as a means by which routing
equipment can find the best pot]! for tmnsmiding data packets from one
network to another. Upgmds have been nnadeto the RIPl protocol, resulting
in Routing Information Protocol Version 2 (RIPZ). RIP2 was developed to
cover some ofthe inefficiencies ot'RIPl.
Metric: RIP metric is a value of distance for the network. Usually
RIP increments the metric when the network information is received.
Redistributed routes' default metric offset is set to 1. These rules can be
used to change the metric offset only for the matched networks specified
or excluded in the Route Metric Offsetahle. But the metric offset ofother
networks is still set to 1.
SSID(Servioe SetID)
SSID is a group name shared by every member ofawireless network. Only
client PC: with the same SSH) are allowed tn establish a connection
Station
Any device containing IEEE 802.11wireles medium access conformity.
Subnet Mask
A <|IhnEi mask is a set ot't'onr numbers configured like an TPaddress it is
used to create IP address numbers used only within a particular network.
TCP (Transmission Control Protocol)
The smndard transport level protocol that provides the full duplex, stream
service on which many application protocols depend. TCP allows a process
or one machine to send a stream of datato a process on another. Software
implementing TCP usually resids in the operating system and uses the 11>
to transmit information across the network.
TKIP (Temporal Key Integrity Protocol)
TKIP is used in WPA to replace WEPwith a new encryption algorithm that
is stronger than the WEP algorithm but that uses the calculation facilities
present on existing wireless devices to perform encryption operations.
ASUS 802.11 9 Access Point
59
5. Appendix
Chapter 5 - Appendix
WAN (Wide Area Network)
A system of LANs, connected togeher A network that connects computers
1ocated in separate areas, (i.e., ditrerent huildings, cities, countries). The
Internet is a wide area network.
WECA (Wireless Ethernet Compatibility Alliance)
An industry group that certifies cross—vender interoperahiiity and
compatibility ofIEEE 802.11b wirei-s neworking products and to promote
that standard for enterprise, smaii hnsin-s, and home environments.
WEP (illn'ed Equivalent Privacy)
The IEEE802.llh standard specifiesan optional encryption feature, known
as Wired Equivalent Privacy or WEP. that ‘s designed to provide a wire1ess
LAN with a security level equal to what is found on a wired Ethernet
network. Whl’ encrypts the data portion or each packet exchanged on the
802.11b network using eithera 64—bit or llS—bit encryption a1gorithm. In
addition, WEP is also used in conjunction with the optional Shared Key
Authentication algorithm to prevent unauthorized devices from associating
with an 802.11b network.
WLAN (Wireless Local Area Network)
This is a group ofcomputers and other devices connected wireiessiy in a
sman area. A wireiess network is referred to as LAN or WLAN.
WPA (Wi-Fi Protected Access)
WirFi Protected Access is a specifimtion, which offsets encryption and
authentication improvements thatare stronger than the Wireless Encryption
Protocol (WEP), which it is meant to replace.
WPA-PSK (Wi-Fi Protected Access - Pro-Shared Key)
WPA—PSK is a special mode or WPA for home environment without a
Remote Authentication Dial—In User Service (RADIUS). It is required
to enter a password into their m point or home wireiess gateway and
each c1ients that is on the wirei-s nawmk to keeps out eavesdroppers
and other unauthorized users hy requiring all devices to have the matching
password.
60
ASUS 802.11 9 Access Point
Chapter 6 - Safety Statements
6. Safety Information
Federal Communications Commission
This device complies with FCC Rules Pan 15, Operation is subject to the
following two conditions:
- This device may not cause harmful interference, and
- This device must accept any interference received, inc rudin g interference
that may cause undesired operation.
This equipment has been tested and found to comply with the limits fora
class B digital device, pursuant to Part 15 of the Federal Communications
Commission (FCC) rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This
equipment generates, uses, and ran radiate radio treqtlency energy and, it not
installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that
interference will notoccur in a particularinstallation, Ifthis equipmentdoes
cause harmful interference to radio or television reception, which can be
determined by turning the equipmentofrand on, the user is encouraged to
try to correct the interference by one or more oftrre following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between theequipment 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/TVtechnician for help.
WARNING! The use ota shielMtype power cord is required in order
to meethc emission limits and to prevent interference to the nearby
radio and televlslon reception. It Is essentlal that only the supplied
power cord he used. Use only shielded cmles to connect V0 devices
to this equipment. You are cautioned that changes or modifications
not expressly approved by the party responsible for compliance
could void your authority to operate the equipment.
Reprinted from the Code of Federal Regulations #47, part 15.193, 1993.
Washington DC: Office of the Federal Register. National Archives and
Records Administration, U.S, Government Printing Office.
ASUS 802.11 9 Access Point
61
5. Appendix
xrpuaddv “9
Chapter 6 - Safety Statements
FCC Radio Frequency Interference Requirements
MPE Statement: Yourdev ice contains a low power transmitter. When device
is transmitted it sends out Radio Frequency (RF) signal.
This device is restricted to INDOOR USEdue to its opemtion in the 5.15
to 5.25GHz frequency range, FCC requires this product to be used indoors
forthe frequency range 5.15 to 5250111 to reducethe potential for harmful
interference to cochan nel ofthe Nbbile Satellite Systems.
High power radars are allocated as primary userofthe 5.25 to 5.3 5GHz and
5.65 to 5.85GHz bands. These mdarstationscan cause interference with and
/ or damage th is device
FCC RF Exposure Guidelines (Access Points)
This Wireless LAN mdio device has been evaluated under FCC Bulletin
OET 65Cand found complhnt to the requirements as set forth in CFR 47
Sections 2.1091. 11093. and 15.247tb)(4) addressing RF FJ
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