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You can select: • limited access where only one device on the network can manage the modem • general access where any device on the network can manage the modem Do the following to configure administration for your modem: 1 Click System from the Main Menu. 2 Click Security Admin on the System Menu. 3 Select one of the following and enter the appropriate IP address: • When you allow only one device on the network to manage the modem, enter the IP address for that one device in the IP address field. • When you allow any device on the network to manage the modem, enter 0.0.0.0 in the IP address field. 4 Click Submit to accept the address you entered. Megabit Modem 410F and 420F User Manual CONFIGURING THE PORTS 6 Configure the connection between the Megabit Modem 410F and 420F using the Brouter LAN-WAN Configuration page. You can configure both the Megabit Modem 410F and 420F as a bridge to forward Ethernet data based on MAC addresses, as a router to route Ethernet-encapsulated IP datagrams based on IP addresses, or as both. If you select both, the modem routes all IP datagrams and bridges everything else. Be sure to configure the same settings for both modems. For more information about these options, see “Bridging and Routing” on page 69. Configure the ADSL connection between the Megabit Modem 410F and 420F using the CO End ADSL (DMT) Configuration page from the 410F (ATU-C). For more information about the ADSL connection, see “ADSL” on page 67 and “Rate Adaptive Transmission” on page 68. Do the following to configure the Megabit Modem 410F and 420F: • Configure parameters for communicating between the Megabit Modem 410F and 420F over the WAN, and set up the LAN side of the configuration, including DHCP. If DHCP is enabled, the modem will serve IP addresses to devices on the LAN (page 48)when routing is enabled. • Configure ADSL service between the Megabit Modem 410F and 420F (page 52). • Save the configuration and effect your changes (page 36). Although you have submitted your configuration changes: • some LAN-WAN parameter changes are not permanent until you write them to NVRAM and do not take effect until you reset the modem • ADSL parameter changes do not take effect until you reset the ADSL link See “Saving the Configuration and Effecting Changes” on page 36 for additional information. Megabit Modem 410F and 420F User Manual Configuring the LAN and WAN CONFIGURING THE LAN AND WAN Configure the LAN and WAN parameters. Click LAN-WAN Configuration on the Main Menu to access the Brouter LAN-WAN Configuration page. Megabit Modem 410F and 420F User Manual Chapter 6: Configuring the Ports 2 Enter the bridging configuration parameters: . Select Bridging Enable to forward Ethernet data based on MAC addresses. Click Spanning Tree Enable to enable the Spanning Tree protocol. The Spanning Tree protocol eliminates loops in a bridged LAN topology. When Spanning Tree is selected, it becomes active when bridging is enabled. If the modem is configured for routing only, Spanning Tree does not run. See “Spanning Tree Protocol” on page 69 for more information. 3 Enter the routing configuration parameters: . Select Routing Enable to forward IP datagrams based on IP addresses. See “Routing” on page 71 for more information. Click Static Route Table to get a dialog to set up static routes. The modem can accept up to 32 static route entries. Go to “Defining Static Route Entries” on page 51 to configure these parameters. 4 Enter the LAN and WAN port configuration parameters: . Enter the LAN IP Address for the modem Ethernet 10/100BASE-T LAN port. The default IP address for the LAN port is 192.168.0.1. Enter the WAN IP Address for the ADSL (WAN) port. This option is available only if routing is enabled and you must enter a valid IP address. When routing is not enabled, the field is blank. . Enter the LAN IP Net Mask (subnet IP mask) for the modem Ethernet 10/100BASE-T LAN port. The default IP subnet mask is 255.255.255.0. Enter the WAN IP Net Mask (subnet IP mask) for the ADSL (WAN) port. This option is available only if routing is enabled and you must enter a valid subnet mask. When routing is not enabled, the field is blank. . The LAN Bridge Port Priority is preset to 100. Bridge Port Priority is used when Bridging mode and Spanning Tree are both enabled and determines which modem port has higher priority when active simultaneously. The WAN Bridge Port Priority is preset to 101. Bridge Port Priority is used when Bridging mode and Spanning Tree are both enabled and determines which modem port has higher priority when active simultaneously. Megabit Modem 410F and 420F User Manual Configuring the LAN and WAN 6 7 . For the LAN and WAN RIP Direction, select the direction you want RIP (Routing Information Protocol) activated in Routing mode. See “Routing” on page 71 for more information on RIP. . For the LAN and WAN RIP Version, select the version of RIP used for intergateway transmissions in Routing mode. See “Routing” on page 71 f...

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