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https://docs.sophos.com/nsg/sophos-firewall/21.0/Help/en-us/webhelp/onlinehelp/index.html?contextId=CLI-system-proxy-arp

proxy-arp

You can define how the proxy responds to ARP requests.

Command

set proxy-arp

Syntax

set proxy-arp
add [interface] {PortID} [dest_ip | dst_iprange] {destination IP | destination IP range}
del [interface] {PortID} [dest_ip | dst_iprange] {destination IP | destination IP range}

Options

add [interface] {PortID} [dest_ip | dst_iprange] {destination IP | destination IP range}

Applies proxy arp settings to the defined interface.

del [interface] {PortID} [dest_ip | dst_iprange] {destination IP | destination IP range}

Deletes proxy arp settings from the defined interface.