Proxy Address Resolution Protocol (ARP) Support for Reachable Routes in the Network

This feature allows you to configure whether the switch replies to Address Resolution Protocol (ARP) requests on a specified VLAN by proxy ARP if the route to the IP address is reachable, or only if proxy ARP entries have been created.

Supported Platforms

Summit X450-G2, X460-G2, X670-G2, X770, and ExtremeSwitching X440-G2, X870, X620, X690 series switches.


  • No support of SNMP.
  • For this feature the statistics of ARP send “Out Response” is incremented.

New CLI Commands

configure iparp add proxy [ipNetmask | ip_addr {mask}] {vr vr_name} {mac | vrrp} {always}

Changed CLI Commands

The following show command is changed to show the proxy ARP for reachable routes information:

show vlan {virtual-router vr-name}