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Command Reference Guide PPP Interface Configuration Command Set

ip proxy-arp

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

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

192.22.73.101)

Specifies the subnet mask that corresponds to the listed IP address

Default Values

By default, proxy-arp is enabled.

Command Modes

(config-interface)# Interface Configuration Mode required (applies to all physical interfaces as well

as virtual interfaces)

Command History

Release 1.1 Command was introduced

Functional Notes

In general, the principle of proxy-arp allows a router to insert its IP address in the source IP address field 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 ADTRAN OS 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 virtual PPP interface:

(config)#

interface ppp 1

(config-ppp 1)#

ip proxy-arp

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