C613-50100-01 REV C Command Reference for x930 Series 746
AlliedWare Plus™ Operating System - Version 5.4.6-1.x
IP ADDRESSING AND PROTOCOL COMMANDS
IP
LOCAL-PROXY-ARP
ip local-proxy-arp
Overview This command allows you to stop MAC address resolution between hosts within a
private VLAN edge interface. Local Proxy ARP works by intercepting ARP requests
between hosts within a subnet and responding with your device’s own MAC
address details instead of the destination host’s details. This stops hosts from
learning the MAC address of other hosts within its subnet through ARP requests.
Local Proxy ARP ensures that devices within a subnet cannot send traffic that
bypasses Layer 3 routing on your device. This lets you monitor and filter traffic
between hosts in the same subnet, and enables you to have control over which
hosts may communicate with one another.
When Local Proxy ARP is operating on an interface, your device does not generate
or forward any ICMP-Redirect messages on that interface. This command does not
enable proxy ARP on the interface; see the ip proxy-arp command for more
information on enabling proxy ARP.
The no variant of this command disables Local Proxy ARP to stop your device from
intercepting and responding to ARP requests between hosts within a subnet. This
allows the hosts to use MAC address resolution to communicate directly with one
another. Local Proxy ARP is disabled by default.
Syntax
ip local-proxy-arp
no ip local-proxy-arp
Default Local proxy ARP is disabled by default
Mode Interface Configuration for a VLAN interface or a local loopback interface.
Examples To enable your device to apply Local Proxy ARP on the interface vlan7, use the
following commands:
awplus# configure terminal
awplus(config)# interface vlan7
awplus(config-if)# ip local-proxy-arp
To disable your device to apply Local Proxy ARP on the interface vlan7, use the
following commands:
awplus# configure terminal
awplus(config)# interface vlan7
awplus(config-if)# no ip local-proxy-arp
Related
Commands
ip proxy-arp
show arp
show running-config
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