4. DSL Router Configuration Examples4-10 November 2003 6300-A2-GB20-10Unnumbered DSL Interface with Proxy ARP Configuration ExampleIn this unnumbered DSL Interface with Proxy ARP example: The clients are statically configured and use the core router as the next hoprouter (default gateway) in order to create the LAN extension configuration. The DSL interface is unnumbered. The clients, the DSL router’s Ethernet interface, and the core router’s interfaceare all on the same logical network. If IP Scoping is enabled at the DSL card, the eth1 and the client’s IPaddresses must be placed in the client VNID table (VNID mode must beselected on the DSL cards with an ATM uplink, such as Model 8304, 8344,etc.).The commands and syntax for this example are:ip routing enableifn address eth1 155.1.3.254 255.255.255.0ifn address dsl1 unnumberedip route create upstream eth1 155.1.3.1proxy arp eth1 enableproxy arp dsl1 enableNOTES:— The ip routing enable command is only required when usingfirmware version 4.2.5 or higher.— FUNI/MPOA (1483 routed) link encapsulation can be used with thisconfiguration and the DSL card Models 8304, 8314, 8344, and 8374. Linkencapsulation is configured on the DSL port. This link encapsulation mustmatch the core network encapsulation type. The ip route createupstream and proxy arp dsl1 enable commands are notnecessary when using FUNI/MPOA link encapsulation.01-16768-01Customer Premises (CP)End-userSystems155.1.3.2155.1.3.3155.1.3.4DSLRouterHubConsolePortConnectionDSLCoreRouterdsl1UnnumberedWAN155.1.3.1eth1155.1.3.254Ethernet
