ADTRAN 1000R Series

Command Reference Guide Frame Relay Sub-Interface Config Command Set

ip proxy-arp <address> <subnet mask>

Use the ip proxy-arp to enable proxy Address Resolution Protocol (ARP) on the interface. Use the no

form of this command to disable this feature.

Syntax Description

<address> Defines the IP address for the interface in dotted decimal notation (for example:

192.22.73.101).

<subnet mask> Specifies the subnet mask that corresponds to the listed IP address.

Default Values

By default, proxy ARP is enabled.

Applicable Platforms

This command applies to the NetVanta 1000R, 3000, 4000, and 5000 and Total Access 900 Series units.

Command History

Release 1.1 Command was introduced.

Functional Notes

In general, the principle of proxy ARP allows a ro uter to insert it s IP a ddr ess in the sour ce IP addre ss fiel d

of a packet (if the packet is from a host on one of its subnetworks). This allows hosts to reach devices on

other subnetworks without implementing routing or specifying a default gateway.

If proxy ARP is enabled, the AOS will respond to all proxy ARP requests with its specified MAC address

and forward packets accordingly.

Enabling proxy ARP on an interface may introduce unnecessary ARP traffic on the network.

Usage Examples

The following enables proxy ARP on the Frame Relay sub-interface:

(config)#interface frame-relay 1.16

(config-fr 1.16)#ip proxy-arp