Enabling Proxy ARP By default, the device uses proxy ARP to help hosts learn MAC addresses of hosts on other networks or subnets. To enable proxy ARP, perform this procedure: Configuring IP Unicast Routing Enabling Proxy ARP Command or Action Purpose Device>enable Step 2 configure terminal Example: Device#configure terminal Enters global configuration mode. Step 3 interface interface-id Example: Device(config)#interface gigabitethernet 1/0/2 Enters interface configuration mode, and specifies the Layer 3 interface to configure. Step 4 arp arpa Example: Device(config-if)#arp arpa Specifies the ARP encapsulation method. Use the no arp arpa command to disable ARP encapsulation method.
Step 5 end Example: Device(config)#end Returns to privileged EXEC mode. Step 6 show interfaces [interface-id] Example: Device#show interfaces Verifies ARP encapsulation configuration on all interfaces or the specified interface. Step 7 copy running-config startup-config Example: Device#copy running-config startup-config (Optional) Saves your entries in the configuration file. Configuring IP Unicast Routing 17