| Engineering Journal 6.5.5: Configuring the Ethernet interface Use the following steps to configure the Ethernet interface (which connects the router to the local network) for IP and IPX routing and network addresses: Step 1 Enter configuration mode for the Ethernet interface: 1600(config)# interface ethernet 0 Step 2 Configure this interface with an IP address and a subnet mask: 1600(config-if)# ip address 172.16.25.1 255.255.255.0 Step 3 Enable IPX routing on this interface: 1600(config-if)# ipx network number Step 4 Enable the interface and the configuration changes that you have just made on the interface: 1600(config-if)# no shutdown Step 5 Exit configuration mode for this interface: 1600(config-if)# exit