D Link SL2750EV1 Wireless N 300 ADSL2+ Modem Router User Manual 2740
D Link Corporation Wireless N 300 ADSL2+ Modem Router Users Manual 2740
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- 1. Users Manual 2740
- 2. Users Manual 2750
Users Manual 2740
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| Document ID | 2294428 |
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| Document Description | Users Manual 2740 |
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| Document Type | User Manual |
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| Filesize | 161.07kB (2013405 bits) |
| Date Submitted | 2014-06-13 00:00:00 |
| Date Available | 2014-06-13 00:00:00 |
| Creation Date | 2014-06-05 12:55:32 |
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DSL-2740E User Manual DSL-2740E User Manual FCC Statement This 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 or more 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 – Consult the dealer or an experienced radio/TV technician for help. which the receiver is connected. To assure continued compliance, any changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate this equipment. (Example- use only shielded interface cables when connecting to computer or peripheral devices). FCC Radiation Exposure Statement This device complies with FCC radiation exposure limits set forth for an uncontrolled environment and it also complies with Part 15 of the FCC RF Rules. This equipment must be installed and operated in accordance with provided instructions and the antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter. End-users and installers must be provide with antenna installation instructions and consider removing the no-collocation statement. 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) DSL-2740E User Manual this device must accept any interference received, including interference that may cause undesired operation. Caution! Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. FCC - PART 68 This equipment complies with Part 68 of the FCC rules and the requirements adopted by the ACTA. On the bottom of this equipment is a label that contains, among other information, a product identifier in the format US:3P7DL01B2750EV1. If requested, this number must be provided to the telephone company. This equipment uses the following USOC jacks: RJ-45&RJ-11 REN (RINGER EQUIVALENT NUMBERS) STATEMENT Notice: The Ringer Equivalence Number (REN) assigned to each terminal device provides an indication of the maximum number of terminals allowed to be connected to a telephone interface. The termination on an interface may consist of any combination of devices subject only to the requirement that the sum of the Ringer Equivalence Numbers of all the devices does not exceed 5. ATTACHMENT LIMITATIONS STATEMENT Notice: This equipment meets telecommunications network protective, operational and safety requirements as prescribed in the appropriate Terminal Equipment Technical Requirements document(s). This is confirmed by marking the equipment with the Industry Canada certification number. The Department does not guarantee the equipment will operate to the user's satisfaction. Before installing this equipment, users should ensure that it is permissible to be connected to the facilities of the local telecommunications company. The equipment must also be installed using an acceptable method of connection. The customer should be aware that compliance with the above conditions may not prevent degradation of service in some situations. Repairs to certified equipment should be coordinated by a representative designated by the supplier. Any repairs or alterations made by the user to this equipment, or equipment malfunctions, may give the telecommunications company cause to request the user to disconnect the equipment. ii DSL-2740E User Manual Users should ensure for their own protection that the electrical ground connections of the power utility, telephone lines and internal metallic water pipe system, if present, are connected together. This precaution may be particularly important in rural areas. Caution: Users should not attempt to make such connections themselves, but should contact the appropriate electric inspection authority, or electrician, as appropriate. iii DSL-2740E User Manual Contents Introduction ........................................................................................................ 1 1.1 Safety Precautions ................................................................................ 1 1.2 LEDs and Interfaces .............................................................................. 2 1.3 System Requirements ........................................................................... 4 1.4 Features ................................................................................................ 4 Hardware Installation ......................................................................................... 6 Web Configuration ............................................................................................. 7 3.1 3.2 3.3 3.4 Accessing the Device ............................................................................ 7 Setup ................................................................................................... 10 3.2.1 Wizard....................................................................................... 10 3.2.2 Local Network ........................................................................... 16 3.2.3 Internet Setup ........................................................................... 26 3.2.4 Wireless Setup.......................................................................... 34 3.2.5 Time and Date .......................................................................... 40 Advanced............................................................................................. 42 3.3.1 Advanced Wireless ................................................................... 42 3.3.2 Access Control List ................................................................... 48 3.3.3 Port Triggering .......................................................................... 52 3.3.4 Port Forwarding ........................................................................ 54 3.3.5 DMZ .......................................................................................... 55 3.3.6 Parental Control ........................................................................ 56 3.3.7 Filtering Options........................................................................ 60 3.3.8 DoS Settings ............................................................................. 64 3.3.9 DNS .......................................................................................... 65 3.3.10 Dynamic DNS ...................................................................... 67 3.3.11 Network Tools ...................................................................... 69 3.3.12 Routing ................................................................................ 81 3.3.13 NAT ..................................................................................... 85 Maintenance ........................................................................................ 89 3.4.1 System ...................................................................................... 89 3.4.2 Firmware Update ...................................................................... 91 3.4.3 Password .................................................................................. 92 3.4.4 Diagnostics ............................................................................... 93 3.4.5 System Log ............................................................................... 96 DSL-2740E User Manual 3.4.6 3.5 3.6 Logout ....................................................................................... 98 Status................................................................................................... 98 3.5.1 Device Info ................................................................................ 98 3.5.2 Wireless Clients ...................................................................... 100 3.5.3 DHCP Clients .......................................................................... 101 3.5.4 ADSL Driver ............................................................................ 101 3.5.5 Statistics.................................................................................. 102 3.5.6 Route Information ................................................................... 103 Help ................................................................................................... 104 ii DSL-2740E User Manual Introduction The DSL-2740E supports multiple line modes. With one 10/100 base-T Ethernet interfaces at the user end, the device provides high-speed ADSL broadband connection to the Internet or Intranet for high-end users like net bars and office users. It provides high performance access to the Internet with a downstream rate of 24 Mbps and an upstream rate of 1 Mbps. It supports IPv6. It complies with specifications of IEEE 802.11, 802.11b/g/n, WEP, WPA, and WPA2 security. The WLAN of the device supports 2T2R. 1.1 Safety Precautions Take the following instructions to prevent the device from risks and damage caused by fire or electric power: Use the type of power marked in the volume label. Use the power adapter in the product package. Pay attention to the power load of the outlet or prolonged lines. An overburden power outlet or damaged lines or plugs may cause electric shock or fire accidents. Check the power cords regularly. If you find any damage, replace it at once. Proper space left for heat dissipation is necessary to avoid damage caused by overheating to the device. The long and thin holes on the device are designed for heat dissipation to ensure that the device works normally. Do not cover these heat dissipation holes. Do not put this device close to a heat source or under a high temperature occurs. Keep the device away from direct sunshine. Do not put this device close to an overdamp or watery place. Do not spill fluid on this device. Do not connect this device to a PC or electronic product unless instructed by our customer engineer or your broadband provider. Wrong connection may cause power or fire risk. Do not place this device on an unstable surface or support. DSL-2740E User Manual 1.2 LEDs and Interfaces Note: The figures in this document are for reference only. Front Panel Figure 1 Front panel The following table describes the LEDs of the device. LED Color Green Red Power Status Description The initialization of the system On is complete. On The device is powered on. Blinking The firmware is upgrading. The Ethernet interface is not Off properly connected. The Ethernet interface is Green Blinking properly connected and data is being transmitted. LAN 1/2/3/4 The Ethernet interface is On properly connected, but no data is being transmitted. The WLAN function is enabled Blinking and data is being transmitted on the WLAN. The WLAN function is enabled, Green WLAN On but no data is being transmitted on the WLAN. Blue Off The WLAN function is disabled. Solid Connection is successfully light established between the router DSL-2740E User Manual LED Color Status Description and the client, the LED would light steady for 5 seconds. WPS Blinking WPS is successfully triggered. Device is ready for new WPS Off setup. Off No signal is being detected. The device is handshaking with Green Blinking the physical layer of the office end. DSL A connection is set up with the On physical layer of the office end. The device is under the Bridge Off mode or powered off. Green A connection is set up and no On traffic is detected. The authentication of the PPP Internet Red dial-up is failed or MER is failed On to obtain the correct IP address. Rear Panel Figure 2 Rear panel The following table describes the interface of the device. Interface/Button Description RJ-11 interface for connecting the host to the telephone DSL jack on the wall or the MODEM interface of the splitter through a telephone line. DSL-2740E User Manual For a PC or other Ethernet-abled device to join the LAN of LAN4/3/2/1 2740E by being connected to this interface with RJ-45 cable. Press and hold the button for 3 seconds start WPS WPS negotiation. WIRELESS ON/OFF ON/OFF 12V DC IN (power) Press and hold the button for 2 seconds start WLAN. Power switch, which is used to power on or power off the host. Interface for connecting the power adapter. Reset (On the Press and hold the button for 4 seconds to restore the bottom side) factory defaults. 1.3 System Requirements A 10 baseT/100BaseT Ethernet card installed on your PC A hub or switch (attached to several PCs through one of Ethernet interfaces on the device) Operating system: Windows Vista, Windows 7, Windows 98SE, Windows 2000, Windows ME or Windows XP Internet Explorer V5.0 or higher, Netscape V4.0 or higher, or Firefox 1.5 or higher 1.4 Features Various line modes External PPPoE dial-up access Internal PPPoE and PPPoA dial-up access Leased line mode 1483B, 1483R, and MER access Multiple PVCs (eight at most) and these PVCs can be isolated from each other A single PVC with multiple sessions Multiple PVCs with multiple sessions Binding of ports with PVCs DSL-2740E User Manual 802.1Q and 802.1P protocol DHCP server NAT and NAPT Static route Firmware upgrade: Web, TFTP, FTP Reset to the factory defaults DNS relay Virtual server DMZ Two-level passwords and user names Web user interface Telnet CLI System status display PPP session PAP and CHAP IP filter IP QoS Remote access control Line connection status test Remote management (telnet and HTTP) Backup and restoration of configuration file Ethernet interface supports crossover detection, auto-correction and polarity correction UPnP IPV6 DSL-2740E User Manual Hardware Installation Step 1 Connect the DSL port of the device and the Modem port of the splitter with a telephone cable. Connect the phone to the Phone port of the splitter through a telephone cable. Connect the incoming line to the Line port of the splitter. The splitter has three ports: Line: Connect to a wall phone port (RJ-11 jack). Modem: Connect to the DSL port of the device. Phone: Connect to a telephone set. Step 2 Connect a LAN port of the device to the network card of the PC through an Ethernet cable (MDI/MDIX). Step 3 Plug one end of the power adapter to the wall outlet and the other end to the Power (12V DC IN) port of the device. Figure 3 displays the application diagram for the connection of the device, PC, splitter and telephone sets, when no telephone set is placed before the splitter. Figure 3 Connection diagram DSL-2740E User Manual Web Configuration This chapter describes how to configure the device by using the Web-based configuration utility. Note: This user manual is applied for DSL-2740U& DSL-2740E. 3.1 Accessing the Device The following is the detailed description of accessing the device for the first time. Step 1 Step 2 Open the Internet Explorer (IE) browser and enter http://192.168.1.1. The Login page shown in the following figure appears. Enter the user name and password. The user name and password of the super user are admin and admin respectively. DSL-2740E User Manual If you log in as the super user successfully, the page shown in the following figure divided into two parts appears. This page displays a summary overview of the router, including the system information, DSL information, LAN Configuration, DNS information and WAN Configuration. Figure 4 Device information - 1 DSL-2740E User Manual Figure 5 Device information – 2 DSL-2740E User Manual 3.2 Setup In the main interface, click Setup tab to enter the Setup menu as shown in the following figure. The submenus are Wizard, Local Network, Internet Setup, Wireless Setup and Time and Date. 3.2.1 Wizard Wizard enables fast and accurate configuration of Internet connection and other important parameters. The following sections describe configuration parameters. When subscribing to a broadband service, you should be aware of the method, by which you are connected to the Internet. Technical information about the properties of your Internet connection is provided by your Internet service provider (ISP). For example, your ISP should inform you that you are connected to the Internet using a static or dynamic IP address, and the protocol you use to communicate over the Internet, such as PPPoA or PPPoE. Choose Setup > Wizard. The page shown in the following figure appears. Click Setup Wizard. The page shown in the following figure appears. 10 DSL-2740E User Manual There are 5 steps to configure the device. Click Next to continue. Step 1 Change the device login password. Step 2 Set the time and date. 11 DSL-2740E User Manual Step 3 Configure the Internet connection. If the internet service you subscribed is PPPoE or PPPoA, you can choose the Protocol to be PPPoE or PPPoA. Set the VPI and VCI. Enter the user name and password provided by your ISP. 12 DSL-2740E User Manual If the internet service you subscribed is Dynamic IP, you can choose Protocol to be Dynamic IP. The page shown in the following figure appears. If the Protocol is Static IP, you can choose Protocol to be Static IP. The page shown in the following figure appears. Enter the IP Address, Subnet Mask, Default Gateway and Primary DNS Server provided by your ISP. 13 DSL-2740E User Manual If the Protocol is Bridge, the page shown in the following figure appears. 14 DSL-2740E User Manual Step 4 Configure the wireless network. Step 5 Complete and apply the settings. Click Apply to save the settings. 15 DSL-2740E User Manual Note: In each step of the Wizard page, you can click Back to review or modify the previous settings. Click Cancel to exit the wizard page. 3.2.2 Local Network You can configure the LAN IP address according to the actual application. The preset IP address is 192.168.1.1. You can use the default settings and DHCP service to manage the IP settings for the private network. The IP address of the device is the base address used for DHCP. To use the device for DHCP on your LAN, the IP address pool used for DHCP must be compatible with the IP address of the device. The IP address available in the DHCP IP address pool changes automatically if you change the IP address of the device. You can also enable the secondary LAN IP address. The two LAN IP addresses must be in different networks. 16 DSL-2740E User Manual 3.2.2.1 LAN Interface Choose Setup > Local Network > LAN Interface. The LAN Setting page shown in the following figure appears. You may configure the LAN interface, for example, the IP address and subnet mask. 17 DSL-2740E User Manual The following table describes the parameters in this page. Field IP Address Description Enter the IP address of LAN interface. It is recommended to use an address from a block reserved for private use. This address block is 192.168.1.1- 192.168.1.254. Subnet Enter the subnet mask of LAN interface. The range of subnet Mask mask is from 255.255.0.0-255.255.255.254. Secondary Select it to enable the secondary LAN IP address. The two LAN IP IP addresses must be in different subnets. LAN Port You may choose the LAN interface you want to configure. Link You may select one mode from the drop-down list: Speed/ 100Mbps/FullDuplex, 100Mbps/Half Duplex, Duplex 10Mbps/FullDuplex, 10Mbps/Half Duplex and Auto Mode Negotiation. MAC It is the access control based on MAC address. Select it, and Address the host whose MAC address is listed in the Current Allowed Control MAC Address Table can access the modem. Add Enter MAC address, and then click this button to add a new MAC address. 3.2.2.2 LAN IPv6 Interface Choose Setup > Local Network > LAN IPv6 Interface. The LAN IPv6 Setting page shown in the following figure appears. You may set LAN RA server work mode and LAN DHCPv6 server work mode. 18 DSL-2740E User Manual 19 DSL-2740E User Manual The following table describes the parameters of this page. Field Description Specify the LAN global ipv6 address. It can be Global Address Enable M Flag O Flag assigned by ISP. Enable or disable the Router Advertisement feature. Enable or disable the “Managed address configuration” flag in RA packet. Enable or disable the “Other configuration” flag in RA packet. Specify the RA feature prefix mode: Prefix Mode “Auto”: the RA prefix will use WAN dhcp-pd prefix; “Manual”: user will specify the prefix address, length, preferred time and valid time. Specify the dhcpv6 server mode: “None”: close dhcpv6 server; “Manual”: dhcpv6 server is opened and user DHCPv6 Mode specifies the dhcpv6 server address pool and other parameters. “Auto”: dhcpv6 server is opened and it use WAN dhcp-pd prefix to generate address pool. 3.2.2.3 DHCP Server Choose Setup > Local Network > DHCP Server. The DHCP Server Setting page shown in the following figure appears. You may configure the DHCP mode. 20 DSL-2740E User Manual The following table describes the parameters of this page. Field Description If set to DHCP Server, the router can assign IP DHCP Mode addresses, IP default gateway and DNS servers to the host in Windows95, Windows NT and other operation systems that support the DHCP client. It specifies the first and last IP addresses in the IP IP Pool Range address pool. The router assigns IP address in the Max Lease Time The lease time determines the period that the host IP pool range to the host. 21 DSL-2740E User Manual Field Description retains the assigned IP addresses before the IP addresses change. Enter the domain name if you know. If you leave this blank, the domain name obtained by DHCP from the Domain Name ISP is used. You must enter host name (system name) on each individual PC. The domain name can be assigned from the router through the DHCP server. DNS Servers You can configure the DNS server IP addresses for DNS Relay. Click the button Show Client to display the page Active DHCP Client Table as shown below. It shows the IP addresses assigned to DHCP clients. The following table describes the parameters and buttons in this page: Field IP Address Description It displays the IP address assigned to the DHCP client from the router. It displays the MAC address of the DHCP client. MAC Address Each Ethernet device has a unique MAC address. The MAC address is assigned at the factory and it consists of six pairs of hexadecimal character, for 22 DSL-2740E User Manual Field Description example, 00-A0-C5-00-02-12. It displays the lease time. The lease time determines Expiry the period that the host retains the assigned IP addresses before the IP addresses change. Refresh Click it to refresh this page. Click the button Set VendorClass IP Range to display the page Device IP Range Set. In this page, you can configure the IP address range based on the device type. In the DHCP Mode field, choose None. The page shown in the following figure appears. 23 DSL-2740E User Manual In the DHCP Mode field, choose DHCP Relay. The page shown in the following figure appears. 24 DSL-2740E User Manual The following table describes the parameters and buttons of this page: Field Description If set to DHCP Relay, the router acts a surrogate DHCP Mode DHCP Server and relays the DHCP requests and Relay Server Enter the DHCP server address provided by your ISP. Apply Changes Click it to save the settings of this page. responses between the remote server and the client. 3.2.2.4 DHCP Reserved Choose Setup > Local Network > DHCP Reserved. The DHCP Static IP Configuration page appears. This page lists the fixed IP/MAC address on your LAN. The device distributes the number configured to hosts on your network as they request Internet access. The following table describes the parameters of this page. Field IP Address Mac Address Add Description Enter the specified IP address in the IP pool range, which is assigned to the host. Enter the MAC address of a host on the LAN. After entering the IP address and MAC address, click this button to add them to the DHCP Static IP 25 DSL-2740E User Manual Field Description Table. Delete Selected Select a row in the DHCP Static IP Table, then click it, this row is deleted. Undo Click it to refresh this page. DHCP Static IP It shows the assigned IP address based on the MAC Table address. 3.2.3 Internet Setup 3.2.3.1 Channel Configuration Choose Setup > Internet Setup > Channel Config. The Channel Configuration page appears. You may configure the parameters for the channel operation modes of your ADSL Router. 26 DSL-2740E User Manual 27 DSL-2740E User Manual The following table describes the parameters of this page. Field WAN Physical Type Default Route Description ADSL WAN: ADSL uplink via telephone cable. Ethernet WAN: Ethernet uplink via Ethernet cable. You can select Auto or Specified. Selection VPI The virtual path between two points in an ATM network, ranging from 0 to 255. The virtual channel between two points in an ATM VCI network, ranging from 32 to 65535 (1 to 31 are Encapsulation You can choose LLC and VC-Mux. reserved for known protocols) Channel Mode You can choose 1483 Bridged, 1483 MER, PPPoE, PPPoA, 1483 Routed or IPoA. Select it to enable Network Address Port Translation (NAPT) function. If you do not select it and you want Enable NAPT to access the Internet normally, you must add a route on the uplink equipment. Otherwise, the access to the Internet fails. Normally, it is enabled. Enable IGMP 802.1q VLAN ID You can enable or disable Internet Group Management Protocol (IGMP) function. You can select Disable or Enable. If enabled, you need to enter the VLAN ID. The value ranges from 1 to 4095. When any channel mode except 1483 Bridged is IP Protocol selected, select an IP protocol from IPv4/IPv6, IPv4 and IPv6. PPP Settings User Name Password Type Enter the correct user name for PPP dial-up, which is provided by your ISP. Enter the correct password for PPP dial-up, which is provided by your ISP. You can choose Continuous, Connect on Demand or Manual. 28 DSL-2740E User Manual Field Description If the type is set to Connect on Demand, you need to enter the idle timeout time. Within the preset Idle Time (min) minutes, if the router does not detect the flow of the user continuously, the router automatically disconnects the PPPoE connection. WAN IP Settings You can choose Fixed IP or DHCP. If select Fixed IP, you should enter the local IP address, remote IP address and subnet mask. Type If select DHCP, the router is a DHCP client, the WAN IP address is assigned by the remote DHCP server. Local IP Address Remote IP Enter the IP address of WAN interface provided by your ISP. Enter the IP address of gateway provided by your Address ISP. Netmask Enter the subnet mask of the local IP address. Routing table entry is not clearly specified in the Default Route routing, as to any network prefix forwarding address. Unnumbered Select this checkbox to enable IP unnumbered function. After a PPPoE ATM VC is added to the table, click in the PPPoE mode, the page shown in the following figure appears. In this page, you can configure parameters of this PPPoE PVC. 29 DSL-2740E User Manual The following table describes the parameters and buttons of this page: Field Protocol Description It displays the protocol type used for this WAN connection. ATM VCC The ATM virtual circuit connection assigned for Login Name The user name provided by your ISP. Password The password provided by your ISP. Authentication Method You can choose AUTO, CHAP, or PAP. this PPP interface (VPI/VCI). Connection Type You can choose Continuous, Connect on Demand, or Manual. Idle Time (s) If choose Connect on Demand, you need to enter the idle timeout time. Within the preset 30 DSL-2740E User Manual Field Description minutes, if the router does not detect the flow of the user continuously, the router automatically disconnects the PPPoE connection. Bridge You can select Bridged Ethernet, Bridged PPPoE, or Disable Bridge. AC-Name The accessed equipment type. Service-Name The service name. 802.1q You can select Disable or Enable. After enable it, you need to enter the VLAN ID. The value ranges from 1 to 4095. Source Mac address The MAC address you want to clone. MAC Clone Click it to enable the MAC Clone function with the MAC address that is configured. Apply Changes Click it to save the settings of this page temporarily. Return Click it to return to the Channel Configuration page. Undo Click it to refresh this page. 3.2.3.2 ATM Settings Choose Setup > Internet Setup > ATM Settings. The ATM Settings page appears. You may configure the parameters for the ATM of your ADSL Router. Here you may change the setting for VPI, VCI and QoS, etc. 31 DSL-2740E User Manual The following table describes the parameters of this page. Field Description VPI The virtual path identifier of the ATM PVC. VCI The virtual channel identifier of the ATM PVC. QoS The QoS category of the PVC. You can choose UBR, CBR, rt-VBR, or nrt-VBR. PCR Peak cell rate (PCR) is the maximum rate at which cells can be transmitted along a connection in the ATM network. Its value ranges from 1 to 65535. CDVT Cell delay variation tolerance (CDVT) is the amount of delay permitted microseconds). Its between value ATM ranges cells from (in to 4294967295. SCR Sustained cell rate (SCR) is the maximum rate that traffic can pass over a PVC without the risk of cell loss. Its value ranges from 0 to 65535. MBS Maximum burst size (MBS) is the maximum number of cells that can be transmitted at the PCR. Its value ranges from 0 to 65535. 32 DSL-2740E User Manual 3.2.3.3 ADSL Settings Choose Setup > Internet Setup > ADSL Settings. The ADSL Settings page appears. This page contains a modulation and capability section to be specified by your ISP. Consult with your ISP to select the correct settings for each. Click Apply Changes to finish. 3.2.3.4 PVC Auto Search Choose Setup > Internet Setup > PVC Auto Search. The Auto PVC Configuration page appears. You may configure PVC auto detect function. Here you can add/delete auto PVC search table. 33 DSL-2740E User Manual 3.2.4 Wireless Setup 3.2.4.1 Wireless Basics Choose Setup > Wireless Setup > Wireless Basics. The Wireless Basic Settings page appears. You may configure the parameters for wireless LAN clients, which may connect to your access point. Here you may change wireless encryption settings as well as wireless network parameters. 34 DSL-2740E User Manual The following table describes the parameters in this page. Description Field Choose the working mode of the modem. You can choose from the drop-down list. Band Choose the network model of the modem, which is Mode varied according to the software. By default, the network model of the modem is AP. The service set identification (SSID) is a unique name SSID to identify the modem in the wireless LAN. Wireless stations associating to the modem must have the same 35 DSL-2740E User Manual Description Field SSID. Enter a descriptive name that is used when the wireless client connecting to the modem. Choose a channel from the drop-down list box. A channel is the radio frequency used by 802.11b/g wireless devices. There are 13 channels (from 1 to 13) Channel Number available depending on the geographical area. You may have a choice of channels (for your region) and you should use a different channel from an adjacent AP to reduce the interference. Interference and degrading performance occurs when radio signal from different APs overlap. Radio Power (Percent) You can choose the transmission power of the radio signal. The default one is 100%. It is recommended to choose the default value100%. Show Active Click it to view the information of the wireless clients Clients connected to the modem. Channel Width 40MHZ according to your subscribed broadband Select the appropriate band of 20MHZ, 20/40MHZ, or service. Control Choose the channel selection mode as Upper or Sideband Lower. Click the button Show Active Clients to view the MAC address, transmission, reception packet counters and encrypted status for each associated wireless client. 36 DSL-2740E User Manual Click Apply Changes to save the settings. 3.2.4.2 Wireless Security Choose Setup > Wireless Setup > Wireless Security. The Wireless Security Settings page appears. Turn on WEP or WPA using encryption keys could prevent any unauthorized access to your wireless network. The following table describes the parameters of this page: Field Description Configure the wireless encryption mode. You can choose None, WEP, WPA (TKIP), WPA (AES), WPA2 (AES), WPA2 (TKIP) or WPA2 Mixed. Wired equivalent privacy (WEP) encrypts Encryption data frames before transmitting over the wireless network. Wi-Fi protected access (WPA) is a subset of the IEEE802.11i security specification draft. WPA2 Mixed is the collection of WPA and 37 DSL-2740E User Manual Field Description WPA2 encryption modes. The wireless client establishes the connection between the modem through WPA or WPA2. Key differences between WPA and WEP are in user authentication and improved data encryption. It is available when you set the encryption mode Set WEP Key to WEP. Click it, the Wireless WEP Key Setup page appears. Select Personal (Pre-Shared Key), enter the pre-shared key in the Pre-Shared Key field. Select Enterprise (RADIUS), enter the port, IP address, and password of the Radius server. WPA Authentication You need to enter the username and password Mode provided by the Radius server when the wireless client connects the modem. If the encryption is set to WEP, the modem uses 802.1 X authentication, which is Radius authentication. Click Set WEP Key, and the page Wireless WEP Key Setup appears. You can choose a 64-bit or 128-bit encryption key, and select ASCII or Hex format for input values. 38 DSL-2740E User Manual The following describes the parameters of this page: Field Key Length Description Choose the WEP key length. You can Choose 64-bit or 128-bit. If you choose 64-bit, you can choose ASCII (5 Key Format characters) or Hex (10 characters). If you choose 128-bit, you can choose ASCII (13 characters) or Hex (26 characters). Default Tx Key Choose the index of WEP Key. You can choose Key 1, Key 2, Key 3 or Key 4. The Encryption keys are used to encrypt the data. Both the modem and wireless stations must use the same encryption key for data transmission. Encryption Key 1 to 4 If you choose 64-bit and ASCII (5 characters), enter any 5 ASCII characters. If you choose 64-bit and Hex (10 characters), enter any 10 hexadecimal characters. If you choose 39 128-bit and ASCII (13 DSL-2740E User Manual Field Description characters), enter any 13 ASCII characters. If you choose 128-bit and Hex (26 characters), enter any 26 hexadecimal characters. Click it to apply the settings temporarily. If you want Apply Changes to save the settings of this page permanently, click Save in the lower left corner. Click Apply Changes to save the settings. 3.2.5 Time and Date Choose Setup > Time and Date. The System Time Configuration page appears. In the page, you can configure, update and maintain the correct time on the internal system clock. You can set the time zone that you are in and the Network Time Protocol (NTP) server. You can also configure daylight saving to automatically adjust the time when needed. 40 DSL-2740E User Manual The following table describes the parameters in this page. Description Field Displays the time currently maintained by the router. If System Time this is incorrect, use the following options to configure the time correctly. Time Zone Select your local time zone from the dropdown list. Daylight Adjust the clock for daylight savings time. To synchronize the time automatically with the Internet Mode or your own computer, you may select Set Time Manually, Copy Computer Time or Set NTP Server Manually. Get GMT Time Synchronize to Greenwich Mean Time. When the mode is set to Set NTP Server Manually, the following page will appear. The following table describes the parameters in this page. Description Field State Server Interval Select Enable to synchronize the time automatically with Internet or your own computer. Select a Network Time Server for synchronization from the dropdown list. You may set two servers. Specify the interval for synchronization with the time server. 41 DSL-2740E User Manual 3.3 Advanced This section includes advanced features for network management, security and administrative tools to manage the device. You can view status and other information used to examine performance and for troubleshooting. 3.3.1 Advanced Wireless This function is suggested not to change the defaults, as incorrect settings may reduce the performance of your wireless radio. The default settings provide the best wireless radio performance in most environments. 3.3.1.1 Advanced Settings Choose Advanced > Advanced Wireless > Wireless Advanced. The page shown in the following figure appears. These settings are only for more technically advanced users who have sufficient knowledge about wireless LAN. Do not change these settings unless you know the effect of changes on the device. 42 DSL-2740E User Manual The following table describes the parameters in this page. Description Field Used to fragment packets which help improve Fragment Threshold performance in the presence of radio frequency (RF) interference. RTS Threshold Determines the packet size of a transmission through (Request to the use of the router to help control traffic flow. Send Threshold) Beacon Interval A packet of information that is sent from a connected device to all other devices where it announces its 43 DSL-2740E User Manual Description Field availability and readiness. A beacon interval is a period of time (sent with the beacon) before sending the beacon again. The beacon interval may be adjusted in milliseconds (ms). Sets the wake-up interval for clients in power-saving DTIM Interval mode. This is the length of the CRC (Cyclic Redundancy Check) block for communication between the router Preamble Type and wireless clients. High network traffic areas should select Short preamble type. Broadcast With Disabled selected, no wireless clients will be able SSID to see your wireless network when they scan to see what's available. Click Apply Changes to save the settings. 3.3.1.2 Access Control Choose Advanced > Advanced Wireless > Access Control. The page shown in the following figure appears. Incoming connection can be filtered on your wireless router based on their MAC addresses. 44 DSL-2740E User Manual Set the Wireless Access Control Mode to Allow Listed to enable white list function. Only the devices whose MAC addresses are listed in the Current Access Control List can access the modem. Set the Wireless Access Control Mode to Deny Listed to enable black list function. The devices whose MAC addresses are listed in the Current Access Control List are denied to access the modem. 3.3.1.3 WPS Choose Advanced > Advanced Wireless > WPS. The page shown in the following figure appears. With this feature, your wireless client automatically synchronizes its setting and connects to the Access Point. 45 DSL-2740E User Manual There are two methods for the wireless client to establish connection with the modem through WPS. For one method, click Regenerate PIN to generate a new PIN, and then click Start PBC. In the wireless client tool, enter the PIN which is generated by the modem to start connection. The client will automatically establish the connection with the modem through the encryption mode, and you need not to enter the key. For the other method, the wireless client generates PIN. In the above figure, enter PIN of the wireless client in the Client PIN Number field, then click Start PIN to establish the connection. Note: The wireless client establishes the connection with the modem through WPS negotiation. The wireless client must support WPS. 46 DSL-2740E User Manual 3.3.1.4 MBSSID Choose Advanced > Advanced Wireless > MBSSID. The page shown in the following figure appears. In this page, you can set virtual access points (VAP), its SSID and authentication type. The device supports four virtual access points (VAPs). It is a unique name to identify the modem in the wireless LAN. Wireless stations associating to the 47 DSL-2740E User Manual modem must have the same name. Enter a descriptive name that is used when the wireless client is connecting to the modem. 3.3.2 Access Control List Multiple connections are required by some applications, for example, internet games, video conferencing and Internet telephony. These applications have difficulties working through NAT (Network Address Translation). This section is used to open multiple ports or a range of ports in your router and redirect data through those ports to a single PC on your network. 3.3.2.1 Access Control List Choose Advanced > Access Control List > Access Control List. The page shown in the following figure appears. In this page, you can permit the data packets from LAN or WAN to access the router. You can configure the IP address for Access Control List (ACL). If ACL is enabled, only the effective IP address in the ACL can access the router. Note: If you select Enable in ACL capability, ensure that your host IP address is in ACL list before it takes effect. 48 DSL-2740E User Manual 49 DSL-2740E User Manual The following table describes the parameters and buttons of this page: Field Direction Select LAN ACL Switch Description Select the router interface. You can select LAN or WAN. In this example, LAN is selected. Select it to enable or disable ACL function. Enter the IP address of the specified interface. Only IP Address the IP address that is in the same network segment with the IP address of the specified interface can access the router. You can choose the following services from LAN: Services Allowed Web, Telnet, SSH, FTP, TFTP, SNMP and PING. You can also choose all the services. Add Reset After setting the parameters, click it to add an entry to the Current ACL Table. Click it to refresh this page. When the direction of data packets is set to WAN, the page shown in the following figure appears. 50 DSL-2740E User Manual The following table describes the parameters and buttons of this page: Field Direction Select WAN Setting WAN Interface Description Select the router interface. You can select LAN or WAN. In this example, WAN is selected. You can choose Interface or IP Address. Choose the interface that permits data packets from WAN to access the router. You can choose the following services from WAN: Services Allowed Web, Telnet, SSH, FTP, TFTP, SNMP and PING. You can also choose all the services. 51 DSL-2740E User Manual Field Description After setting the parameters, click it to add an entry Add to the Current ACL Table. Reset Click it to refresh this page. 3.3.2.2 Access Control List IPv6 Choose Advanced > Access Control List > Access Control List IPv6. The page shown in the following figure appears. For configuration method, refer to 3.3.2.1 Access Control List. 3.3.3 Port Triggering Choose Advanced > Port Triggering. The page shown in the following figure appears. Port Triggering is a special form of Port Forwarding in which it requires an outgoing connection before allowing incoming connections on a single or multiple ports. Port Triggering is mostly used when your computer is behind a NAT router. It gives more flexibility than static port forwarding because you don't need to set it up for a specific computer. 52 DSL-2740E User Manual 53 DSL-2740E User Manual Click the Usual Application Name drop-down menu to choose the application you want to set up for port triggering. When you have chosen an application the default Trigger settings will populate the table below. If the application you want to set up isn’t listed, click the User-defined Application Name radio button and type in a name for the trigger in the Custom application field. Configure the Start Match Port, End Match Port, Trigger Protocol, Start Relate Port, End Relate Port, Open Protocol and Nat type. Click the Apply changes button to finish. 3.3.4 Port Forwarding This function is used to open ports in your device and redirect data through those ports to a single PC on your network (WAN-to-LAN traffic). It allows remote users to access services on your LAN, such as FTP for file transfers or SMTP and POP3 for e-mail. The device accepts remote requests for these services at your global IP address. It uses the specified TCP or UDP protocol and port number, and redirects these requests to the server on your LAN with the LAN IP address you specify. Note that the specified private IP address must be within the available range of the subnet where the device is in. Choose Advanced > Port Forwarding. The page shown in the following figure appears. 54 DSL-2740E User Manual Click the Usual Service Name drop-down menu to choose the service you want to set up for port forwarding. When you have chosen a service, the default settings will populate the table below. If the service you want to set up isn’t listed, select the User-defined Service Name radio button and type in a service name. Configure the Protocol, WAN Setting, WAN Interface, WAN Port, LAN Open Port and LAN IP Address. Click the Apply changes button to finish. 3.3.5 DMZ DMZ is the abbreviation of the Demilitarized Zone. Since some applications are not compatible with NAT, the device supports the use of a DMZ IP address for a single host on the LAN. This IP address is not protected by NAT and it is visible to agents on the Internet with the correct type of software. Note that any client PC in 55 DSL-2740E User Manual the DMZ is exposed to various types of security risks. If you use the DMZ, take measures (such as client-based virus protection) to protect the remaining client PCs on your LAN from possible contamination through DMZ. Choose Advanced > DMZ. The page shown in the following figure appears. In the DMZ Host IP Address, input the LAN IP address of the LAN computer that you want to have unrestricted Internet communication. If this computer obtains its address automatically using DHCP, then you may want to make a static reservation on the Setup-->Local Network-->DHCP Reserved page so that the IP address of the DMZ computer does not change. Click Apply to save the settings. 3.3.6 Parental Control You may create a list of websites that you would like the devices on your network to be denied access to. URL Block allows you to quickly create a list of all websites that you wish to stop users from accessing. MAC Filter allows you to control when clients or PCs connected to the device are allowed to access the Internet. 56 DSL-2740E User Manual 3.3.6.1 URL Block Choose Advanced > Parental Control > URL Block. The URL Block page shown in the following figure appears. You may deny certain websites from being accessed during the "schedule" you specified. Here you can add/delete filtered URL. Note: To use this feature, the time of router must be correct. Please set in 3.2.5 Time and Date. 57 DSL-2740E User Manual In the field Schedule Mode, you may select an existing schedule schedule for when the rule will be enabled, or manually set a schedule. After setting, click Add Filter to add the URL into the URL Blocking Table. To add schedules, refer to 3.3.6.3 Schedules. 58 DSL-2740E User Manual 3.3.6.2 Online Time Limit Choose Advanced > Parental Control > Online Time Limit. The ONLINE TIME LIMIT page shown in the following figure appears. 59 DSL-2740E User Manual 3.3.6.3 Schedules Choose Advanced > Parental Control > Schedules. The Schedules page shown in the following figure appears. You may add or delete scheduling rules to be applied for URL block. In the field Rule Name, give the schedule a name that is meaningful to you, such as "Weekday rule". Set the Days and time field, and click Add Rules to save the new rule in the following Rules Table. 3.3.7 Filtering Options Filters can be configured to manage your incoming and outgoing traffic. 3.3.7.1 IP/Port Filter When you use the Port Triggering or Port Forwarding features to open specific ports to traffic from the Internet, you could be increasing the exposure of your LAN 60 DSL-2740E User Manual to cyber attacks from the Internet. In these cases, you can limit that exposure by specifying the IP addresses of Internet hosts that you trust to access your LAN through the ports that you have opened. Choose Advanced > Filtering Options > IP/Port Filter. The IP/Port Filtering page shown in the following figure appears. Direction Upstream (Downstream) means packets outgoing (incoming) from (to) router. The Source IP addresses are LAN-side (WAN-side) addresses and the Destination IP addresses are WAN-side (LAN-side) addresses. Select the rule 61 DSL-2740E User Manual action, and specify at least one of the following criteria: protocol, source/destination IP address, subnet mask and source/destination port. Click the Apply Changes to save a finished rule in the Rules List. The Current Filter Table shows detailed information about each created IP filter. Note: The settings only apply when the firewall is enabled. 3.3.7.2 IPv6/Port Filter Choose Advanced > Filtering Options > IPv6/Port Filter. The IP/Port Filtering page shown in the following figure appears. You may restrict certain types of ipv6 data packets between LAN-side and WAN-side. 62 DSL-2740E User Manual For detailed configuration, you may refer to 3.3.7.1IP/Port Filter. 3.3.7.3 MAC Filter Choose Advanced > Filtering Options > MAC Filter. The MAC Filtering page shown in the following figure appears. You may create a list of MAC addresses that you would either like to allow or deny access to your network. 63 DSL-2740E User Manual 3.3.8 DoS Settings Denial-of-Service Attack (DoS attack) is a type of attack on a network that is designed to bring the network to its knees by flooding it with useless traffic. Choose Advanced > DoS Settings. The DOS Settings page shown in the following figure appears. Select the Enable DoS Prevention checkbox, select the options below, and click Apply Changes to finish. 64 DSL-2740E User Manual 3.3.9 DNS Domain Name System (DNS) is an Internet service that translates the URL/domain name into the corresponding IP address. Since URL/Domain Names are 65 DSL-2740E User Manual alphabetical, they are easier to remember. But the Internet is based on IP address. For example, the URL/Domain Name www.dlink.com is actually 192.168.0.123. 3.3.9.1 DNS Choose Advanced > DNS > DNS. The DNS Configuration page shown in the following figure appears. You may configure the IP addresses of DNS servers for DNS Relay. The following table describes the parameters and buttons of this page: Field Attain DNS Automatically Description Select it, the router accepts the first received DNS assignment from one of the PPPoA, PPPoE or MER enabled PVC(s) during the connection establishment. Set DNS Select it, and enter the IP addresses of the primary Manually and secondary DNS server. Apply Changes Click it to save the settings of this page. Reset Selected Click it to start configuring the parameters in this page. 66 DSL-2740E User Manual 3.3.9.2 IPv6 DNS Choose Advanced > DNS > IPv6 DNS. The IPv6 DNS Configuration page shown in the following figure appears. You may configure the ipv6 addresses of DNS servers. The following table describes the parameters and buttons of this page. Field Attain DNS Automatically Set DNS Manually Interface Description Select it, the router accepts the first received DNS assignment from one of the PPPoA, PPPoE or MER enabled PVC(s) during the connection establishment. Select it, enter the IP addresses and choose the WAN interface of the primary, the secondary and the tertiary DNS server. The router accepts received packet assignment from one of the PPPoA, PPPoE or MER enabled PVC(s). Apply Changes Click it to save the settings of this page. Reset Selected Click it to start configuring the parameters in this page. 3.3.10 Dynamic DNS The device supports dynamic domain name service (DDNS). The dynamic DNS service allows a dynamic public IP address to be associated with a static host 67 DSL-2740E User Manual name in any of the many domains, and allows access to a specified host from various locations on the Internet. Click a hyperlinked URL in the form of hostname.dyndns.org and allow remote access to a host. Many ISPs assign public IP addresses using DHCP, so locating a specific host on the LAN using the standard DNS is difficult. For example, if you are running a public web server or VPN server on your LAN, DDNS ensures that the host can be located from the Internet even if the public IP address changes. DDNS requires that an account be set up with one of the supported DDNS service providers (DyndDNS.org or dlinkddns.com). Choose Advanced > Dynamic DNS. The Dynamic DNS Configuration page shown in the following page appears. 68 DSL-2740E User Manual The following table describes the parameters and buttons of this page. Field DDNS provider Hostname Description Select a dynamic DNS service provider from the pull-down list. Enter the host name that you registered with your DDNS service provider. Username Enter the username provided by your service provider. Password Enter the password provided by your service provider. Note: In some cases DDNS service requires you to open the WAN http service. Refer to Access Control List-> Access Control List. Click Add to save the settings to the Dynamic DDNS Table. 3.3.11 Network Tools The router provides following tools: Port Mapping, IGMP Proxy, IP QoS, UPnP, SNMP, TR-069, Software Forbidden, ARP Bindind, and Client Limit. 3.3.11.1 Port Mapping Port Mapping supports a single (LAN) port or multiple (LAN) ports to be formed as a group and mapped to a PVC (which is associated w/ a VLAN). As a result, each group of LAN ports will perform as an independent (logical) network (like a broadcast domain) among whom traffic broadcast would be prevented. This feature is useful while you would like to form multiple independent (logical) networks for multimedia applications at home. For instance, you can map PVC1 to port 1~3 to create a network (broadcast domain) for PCs for Internet, and map PVC2 to port 4 to create another network (broadcast domain) for IPTV service (devices). By using this feature (w/ multiple PVCs), data traffic and IPTV traffic would not affect each other. Choose Advanced > Network Tools > Port Mapping. The Port Mapping Configuration page shown in the following figure appears. 69 DSL-2740E User Manual 70 DSL-2740E User Manual Follow the steps to manipulate a mapping group. Step 1 Step 2 Select a group from the table. Select interfaces from the available WAN and LAN interface groups and add it to the interface group list using the arrow buttons to manipulate the required mapping of the ports. Step 3 Click Apply button to save the changes. Note: The selected interfaces will be removed from their existing groups and added to the new group. 3.3.11.2 IGMP Proxy IGMP allows support for efficient multicasting -- transmission of identical content, such as multimedia, from a source to a number of recipients. IGMP proxy enables the system to issue IGMP host messages on behalf of hosts that the system discovered through standard IGMP interfaces. The system acts as a proxy for its hosts when you enable it. Choose Advanced > Network Tools > IGMP Proxy. The IGMP Proxy Configuration page shown in the following figure appears. 71 DSL-2740E User Manual The following table describes the parameters and buttons of this page. Field Multicast allowed Description Enable multicast proxy, only for route mode. Allows tuning for the expected packet loss on a link. It Robust Count determines how many times a startup query should be xmitted. Last Member This parameter specifies the times the device sends Query Count the query message. Query Interval The device sends query messages to check IGMP user periodically. The unit is second. Query Response The device waits for the IGMP user’s reply. The unit is Interval 100 * millisecond. The duration for the modem to cease forwarding Group Leave multicast packets after a corresponding IGMP "Leave Delay Group" message has been successfully offered to the modem. Click Apply Changes to save the settings. 72 DSL-2740E User Manual 3.3.11.3 IP QoS Quality of Service is a feature that allows you to allocate or guarantee the throughput or speed of Internet for certain computers. This is a very useful feature for sensitive applications such as VoIP whereby it will assist in preventing dropped calls. Large amounts of non-critical data can be scaled so that they do not affect sensitive real-time applications such as VoIP or Streaming. Choose Advanced > Network Tools > IP QoS. The IP QoS page shown in the following figure appears. Step 1 Enable IP QoS and click Apply Changes to enable IP QoS function. 73 DSL-2740E User Manual Step 2 Click Add Rule to add a new IP QoS rule. The page shown in the following figure appears. 3.3.11.4 UPnP UPnP (Universal Plug and Play) is a networking architecture that provides compatibility among networking equipment, software, and peripherals. This router has optional UPnP capability, and can work with other UPnP devices and software. The system acts as a daemon when you enable UPnP. Leave the UPnP option enabled as long as the LAN has other UPnP applications. Choose Advanced > Network Tools > UPnP. The UPnP Configuration page shown in the following figure appears. 74 DSL-2740E User Manual 3.3.11.5 SNMP SNMP (Simple Network Management Protocol) provides a means to monitor status and performance and set configuration parameters. It enables a management station to configure, monitor and receive trap messages from network devices. Choose Advanced > Network Tools > SNMP. The SNMP Protocol Configuration page shown in the following figure appears. You may change the settings for system description, trap IP address and community name. 75 DSL-2740E User Manual The following table describes the parameters of this page: Description Field Select it to enable SNMP function. You need to Enable SNMP enable SNMP, and then you can configure the parameters of this page. Trap IP Address Enter the trap IP address. The trap information is sent to the corresponding host. Community Name The network administrators must use this password (Read-only) to read the information of this router. Community Name The network administrators must use this password (Read-Write) to configure the information of the router. 3.3.11.6 TR-069 TR-069 is a WAN management protocol. It is a bidirectional SOAP/HTTP based protocol providing the communication between the ADSL router and an Auto Configuration Server (ACS) to monitor status and performance and to set configuration parameters from WAN side. Choose Advanced > Network Tools > TR-069. The TR-069 Configuration page shown in the following figure appears. You may change the setting for the ACS parameters. 76 DSL-2740E User Manual 77 DSL-2740E User Manual The following table describes the parameters of this page: Field Description ACS Configuration URL The URL of the auto-configuration server to connect to. User Name The user name for logging in to the ACS. Password The password for logging in to the ACS. Periodic Inform Enable Select Enable to periodically connect to the ACS to check configuration updates. Periodic Inform Specify the amount of time between Interval connections to ACS. Connection Request User Name The connection username provided by TR-069 Password The connection password provided by TR-069 service. service. Debug Show Message Select Enable to display ACS SOAP messages on the serial console. CPE sends GetRPC Select Enable, the router contacts the ACS to obtain configuration updates. Skip MReboot Specify whether to send an MReboot event code in the inform message. Delay Specify whether to start the TR-069 program after a short delay. Auto-Execution Specify whether to automatically start the TR-069 after the router is powered on. CT Inform Extension Specify support China Telecom extension inform type or not. Certificate Management CPE Certificate The certificate password of the router. Password CPE Certificate Enter the CPE Certificate file. Click it to browse and upload the certificate for the router. CA Certificate Click it to browse and upload the CA certificate 78 DSL-2740E User Manual Field Description for the router. 3.3.11.7 Software Forbidden Choose Advanced > Network Tools > Software Forbidden. The Software Forbidden page shown in the following figure appears. You may configure some software to be forbidden to deny the IP packets of it. To forbid one specified PC (or some PCs) from using an application, select the application you want to prohibit, and input a single IP address or IP addresses in range. When Single IP is selected, IP 0.0.0.0 represent for any IP. In this situation, all PCs connected to this router will deny the selected software. The following table describes the parameters and buttons of this page: Field Description Current Forbidden A list of currently forbidden applications for Software List accessing the network. Add Select Software Forbidden an application accessing the network. 79 to be forbidden from DSL-2740E User Manual 3.3.11.8 ARP Binding This function realizes the binding of IP addresses and MAC addresses to avoid ARP address cheats. Choose Advanced > Network Tools > ARP Binding. The ARP Binding Configuration page shown in the following figure appears. The following table describes the parameters and buttons of this page: Field Description IP Address An IP address to be bound. Mac Address An MAC address to be bound. Add Click this icon to add an ARP binding. Delete Selected Delete a selected setting from the list. Undo Reconfigure the above setting. ARP Binding Table A list of all the current ARP binding settings. 3.3.11.9 Client Limit Choose Advanced > Network Tools > Client Limit. The Client Limit Configuration page shown in the following figure appears. You may configure the capability of forcing how many devices can access to the Internet. 80 DSL-2740E User Manual 3.3.12 Routing 3.3.12.1 Static Route Choose Advanced > Routing > Static Route. The Routing Configuration page shown in the following figure appears. This page is used to configure the routing information. You may add or delete IP routes. 81 DSL-2740E User Manual The following table describes the parameters and buttons of this page: Field Description Enable Select it to use static IP routes. Destination Enter the IP address of the destination device. Subnet Mask Enter the subnet mask of the destination device. Next Hop Enter the IP address of the next hop in the IP route to the destination device. Metric The metric cost for the destination. Interface The interface for the specified route. Add Route Click it to add the new static route to the Static Route Table. Update Select a row in the Static Route Table and modify the parameters. Then click it to save the settings temporarily. Delete Select a row in the Static Route Table and click it to Selected delete the row. Show Click it, the IP Route Table appears. You can view a list Routes of destination routes commonly accessed by your network. Static Route A list of the previously configured static IP routes. Table Click Show Routes, the page shown in the following figure appears. The table shows a list of destination routes commonly accessed by your network. 82 DSL-2740E User Manual 3.3.12.2 IPv6 Static Route Choose Advanced > Routing > IPv6 Static Route. The IPv6 Routing Configuration page shown in the following figure appears. This page is used to configure the routing information. You can add or delete IP routes. The following table describes the parameters and buttons of this page. Field Description Destination Enter the IPv6 address of the destination device. Prefix Length Enter the prefix length of the IPv6 address. Next Hop Enter the IP address of the next hop in the IPv6 route to the destination address. Interface Add Route The interface for the specified route. Click it to add the new static route to the IPv6 Static Route Table. Delete Select a row in the IPv6 Static Route Table and click it to Selected delete the row. 83 DSL-2740E User Manual 3.3.12.3 RIP Enable this function if you are using this device as a RIP-enabled router to communicate with others using Routing Information Protocol (RIP). This page is used to select the interfaces on your devices that use RIP, and the version of the protocol used. Choose Advanced > Routing > RIP. The RIP Configuration page shown in the following figure appears. The following table describes the parameters and buttons of this page: Field RIP Description Select Enable, the router communicates with other RIP-enabled devices. Apply Click it to save the settings of this page. Interface Choose the router interface that uses RIP. Choose the interface version that receives RIP Receive Version messages. You can choose RIP1, RIP2, or Both. Choose RIP1 indicates the router receives RIP v1 messages. 84 DSL-2740E User Manual Field Description Choose RIP2 indicates the router receives RIP v2 messages. Choose Both indicates the router receives RIP v1 and RIP v2 messages. The working mode for sending RIP messages. You can choose RIP1 or RIP2. Send Version Choose RIP1 indicates the router broadcasts RIP1 messages only. Choose RIP2 indicates the router multicasts RIP2 messages only. Add Delete Click it to add the RIP interface to the Rip Config List. Select a row in the Rip Config List and click it to delete the row. 3.3.13 NAT Under this menu, NAT ALG (Application Layer Gateway), NAT Exclude IP, NAT Forwarding, FTP ALG Config and NAT IP Mapping can be performed. 3.3.13.1 NAT ALG Choose Advanced > NAT > NAT ALG. The NAT ALG and Pass-Through page shown in the following figure appears. Choose the NAT ALG and Pass-Through options, and then click Apply Changes. 85 DSL-2740E User Manual 3.3.13.2 NAT Exclude IP Choose Advanced > NAT > NAT Exclude IP. The NAT EXCLUDE IP page shown in the following figure appears. In the page, you can configure some source IP addresses which use the purge route mode when accessing the Internet through the specified interface. 86 DSL-2740E User Manual 3.3.13.3 NAT Forwarding Choose Advanced > NAT > NAT Forwarding. The NAT Forwarding page shown in the following figure appears. Entries in this table allow you to automatically redirect common network services to a specific machine behind the NAT firewall. These settings are only necessary if you wish to host some sort of server like a web server or mail server on the private local network behind your Gateway's NAT firewall. Under 1483MER or 1483Routed mode, if NAPT (Network Address Port Translation) is enabled, the Local IP Address is configured as 192.168.1.3 and the Remote IP Address is configured as 202.32.0.2, the PC with the LAN IP192.168.1.3 will use 202.32.0.2 when it is connected to the Internet via the router without NAPT control. The following table describes the parameters and buttons of this page: Field Description Input a local IP address. Local IP Address Remote IP Input a remote IP address Address Enable Apply Changes Reset Enable the current configured rule. Submit the configurations. Cancel the modification and reconfigure the settings. 87 DSL-2740E User Manual Field Current NAT Port Description Current configuration rule list. Forwarding Table 3.3.13.4 FTP ALG Configuration The common port for FTP connection is port 21, and a common ALG monitors the TCP port 21 to ensure NAT pass-through of FTP. By enabling this function, when the FTP server connection port is not a port 21, the FTP ALG module will be informed to monitor other TCP ports to ensure NAT pass-through of FTP. Choose Advanced > NAT > FTP ALG Config. The FTP ALG Configuration page shown in the following figure appears. The following table describes the parameters and buttons of this page: Field Description FTP ALG port Set an FTP ALG port. Add Dest Ports Add a port configuration. Delete Delete a selected port configuration from the list. Selected DestPort 88 DSL-2740E User Manual 3.3.13.5 NAT IP Mapping Choose Advanced > NAT > NAT IP Mapping. The NAT IP Mapping page shown in the following figure appears. Entries in the Current NAT IP Mapping Table allow you to configure one IP pool for a specified source IP address from LAN, so one packet whose source IP is in range of the specified address will select one IP address from the pool for NAT. 3.4 Maintenance 3.4.1 System Choose Maintenance > System. The page shown in the following figure appears. In this page you can reboot your router or save your router configuration to a file on your computer in case you have to reset your router to factory default settings. You 89 DSL-2740E User Manual can restore your router settings from a previously saved configuration file. You may also reset your router to factory default settings. Resetting your router to factory default settings will delete your current configuration. The following table describes the parameters and buttons of this page: Field Reset to default Description This option restores all configuration settings back to the settings that were in effect at the time the router was shipped from the factory. All settings will be lost. If you want to save your router configuration settings, use the Backup Settings option below. Save and reboot This will save all your settings and restart the router. Back settings Save your configurations in a file on your computer so that it may be accessed again later if your current settings are changed. Be sure to save the configuration before performing a firmware update. Update settings Click Browse to select the configuration file of device and click Update Settings to begin restoring the device configuration. 90 DSL-2740E User Manual Note: Do not turn off your device or press the Reset button while an operation in this page is in progress. 3.4.2 Firmware Update Choose Maintenance > Firmware Update. The page shown in the following figure appears. This page displays your device firmware version and information that will be helpful for D-Link technicians should you require any technical support. The procedure for updating the firmware is as follows. Step 1 Click Browse…to search the file. Step 2 Click Update Firmware to update the configuration file. Step 3 Wait for the router to reboot. This can take another minute or more. Note: Some firmware updates reset the configuration options to the factory defaults. Before performing an update, be sure to save the current configuration. Refer to 3.4.1 System. 91 DSL-2740E User Manual 3.4.3 Password Choose Maintenance > Password. The page shown in the following figure appears. You may modify your router password needed to access this Web management interface. For security reasons, it is recommended that you change the default admin and user passwords of the router. The password you choose should be between 1 and 16 characters in length. If you forget your device password, the only solution is to reset your router to factory default settings and you will lose all your device configuration settings. The following table describes the parameters and buttons of this page: Field Privilege Description Root: The root account is fixed, having full access to the Web-based management interface. User: The user account has the privilege to 92 DSL-2740E User Manual Field Description view configuration settings and statistics and update the router's firmware. 3.4.4 Diagnostics 3.4.4.1 Ping Diagnostic Choose Maintenance > Diagnostics > Ping. The page shown in the following figure appears. This page allows you to ping a Host to test whether your router can be connected to the netwrok. The following table describes the parameter and button of this page: Field Description Host Enter the valid IP address or domain name. Ping Click it to start to Ping. 3.4.4.2 Ping6 Choose Maintenance > Diagnostics > Ping6. The page shown in the following figure appears. The target Address can be a domain or IPv6 address. 93 DSL-2740E User Manual The following table describes the parameter and button of this page: Field Target Address Interface Description Enter an IP address for Ping6 diagnosis. Select an interface through which the Ping6 diagnosis is performed. 3.4.4.3 Traceroute Choose Maintenance > Diagnostics > Traceroute. The page shown in the following figure appears. You can track the route path through the information which is from your computer to the other side host on the Internet. The following table describes the parameters and buttons of this page. Field Description 94 DSL-2740E User Manual Host Enter the destination host address for NumberOfTries Number of repetitions. diagnosis. Timeout Put in the timeout value. Datasize Packet size. DSCP Differentiated Services Code Point, You should set a value between 0-63. MaxHopCount Maximum number of routes. Interface Select the interface. Traceroute Click start traceroute. 3.4.4.4 ADSL Choose Maintenance > Diagnostics > ADSL. The page shown in the following figure appears. It is used for ADSL tone diagnostics. Click Start to start ADSL tone diagnostics. 95 DSL-2740E User Manual 3.4.4.5 Diag Test Choose Maintenance > Diagnostics > Diag Test. The page shown in the following figure appears. In this page, you can test the DSL connection. You can also view the LAN status connection and ADSL connection. 3.4.5 System Log Choose Maintenance > System Log. The page shown in the following figure appears. This section when enabled allows the system to begin logging events based on the selected log level. The router can only keep a limited number of log entries due to router memory constraints. If you have an external SYSLOG server, you may choose to configure external logging and all log entries will be sent to your remote server. 96 DSL-2740E User Manual The following table describes the parameters and buttons of this page. Field Error Description When the system is likely to result in a module abnormity, the system generates an Error log. Notice When the system is under attack or logged in, or port status changes, the system generates a Notice log. Remote Log Host Send system log to remote host, maybe a domain or an IP. Save Log to File You can save current log table to a file. 97 DSL-2740E User Manual 3.4.6 Logout Choose Maintenance > Logout. The page shown in the following figure appears. In this page, you can log out of the configuration page. 3.5 Status You can view the system information and monitor performance 3.5.1 Device Info Choose Status > Device Info. The page shown in the following figure divided into two parts appears. This page displays a summary overview of your router, including system information, DSL information, LAN Configuration, DNS information, WAN Configuration and so on. 98 DSL-2740E User Manual Figure 6 Device information - 1 99 DSL-2740E User Manual Figure 7 Device information - 2 3.5.2 Wireless Clients Choose Status > Wireless Clients. The page shown in the following figure appears. This table shows the MAC address, transmission, reception packet counters and encrypted status for each associated wireless client. 100 DSL-2740E User Manual 3.5.3 DHCP Clients Choose Status > DHCP Clients. The page shown in the following page appears. This page displays all client devices that obtain IP addresses from the device. You can view the host name, IP address, MAC address and time expired(s). 3.5.4 ADSL Driver Choose Status > ADSL Driver. The page shown in the following page appears. This page displays all ADSL statistics information, including link down or on, downstream and upstream, type, line coding and so on. 101 DSL-2740E User Manual 3.5.5 Statistics Choose Status > Statistics. The page shown in the following page appears. This is a summary of the number of packets that have passed between the WAN and the LAN since the router was last initialized. 102 DSL-2740E User Manual 3.5.6 Route Information Choose Status > Route Info. The page shown in the following page appears. This table shows a list of destination routes commonly accessed by your network. 103 DSL-2740E User Manual 3.6 Help In the main interface, click Help tab to enter the Help menu as shown in the following figure. This section provides detailed configuration information for the device. Click a link to view corresponding information. 104
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