Allied Telesis AT-AR236E manual Changing the Adsl Router IP address, Static IP address assignment

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In addition to the DHCP server feature, the ADSL Router supports the DHCP relay function. When the ADSL Router is configured as DHCP server, it assigns the IP addresses to the LAN clients. When the ADSL Router is configured as DHCP relay, it is responsible for forwarding the requests and responses negotiating between the DHCP clients and the server. See figure 11.

Figure 11 (Example of a DHCP Relay configuration)

By turning off the DHCP server and relay the network administrator must carefully configure the IP address, Subnet Mask and DNS settings of every computer on your network. Do not assign the same IP address to more than one computer and your ADSL Router must be on the same subnet as all the other computers.

The apply button will temporarily save this connection. To make the change permanent you need to click on Save Settings (at the side of the page). At the system commands page, click on Save All.

4.5.2 Changing the ADSL Router IP address

You can change the ADSL Router’s IP address by, clicking Setup and under LAN Setup, select Management. This will bring up the screen shown in Figure 12.

4.5.2.1Static IP address assignment

Your ADSL Router’s default IP address and subnet mask are 192.168.1.1/255.255.255.0; this subnet mask will allow the ADSL Router to support 254 users. If you want to support a larger number of users you can change the subnet mask; but remember, the DHCP server is defaulted to only give out 255 IP addresses. Further remember that if you change your gateways’ IP address and you have DHCP enabled, the DHCP configuration must reside within the same subnet

The default gateway is the routing device used to forward all traffic that is not addressed to a station within the local subnet. Your ISP will provide you with the default gateway Address. Figure 12 shows a default gateway address of 203.125.64.1 because this was the default gateway defined when the CLIP connection was configured.

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Contents Web Interface User’s Guide Wide Area Network connection Local Area Network connection Introduction FeaturesManagement Support Ports and buttons Your gateway at a glanceLED description Installing your Adsl Router Log into your Adsl Router Setting up your Adsl RouterQuick Start Quick StartWide Area Network connection Setup for advance userLocal Area Network connection New Connection Configuring the WANBridged gateway profile and Connection PPPoA Connection Setup Page PPPoE Connection Setup Dhcp Connection Setup Static Connection Setup Page Modify an Existing Connection Modem setupEnable/Disable Dhcp Configuring the LANStatic IP address assignment Changing the Adsl Router IP addressFirewall/NAT Services UPnP Advanced for advance user onlyPort Forwarding Advanced Security DMZ configurationEnable Incoming Icmp Ping Access ControlEnable Web from WAN Enable Remote TelnetMAC Filters MAC Address FiltersMulticast MulticastStatic Routing Dynamic Routing Tools System CommandsUser Management Update Firmware Modem Test Ping TestStatus System Log Adsl Router is not functional Appendix a TroubleshootingCan’t connect to the Adsl Router DSL Link LED is always off DSL Link LED continues to blink but does not go solidAdsl Router terms What is a firewall?