tldr/pages/linux/ip-neighbour.md

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ip neighbour

Neighbour/ARP tables management IP subcommand. More information: https://manned.org/ip-neighbour.8.

  • Display the neighbour/ARP table entries:

ip neighbour

  • Remove entries in the neighbour table on device eth0:

sudo ip neighbour flush dev {{eth0}}

  • Perform a neighbour lookup and return a neighbour entry:

ip neighbour get {{lookup_ip}} dev {{eth0}}

  • Add or delete an ARP entry for the neighbour IP address to eth0:

sudo ip neighbour {{add|del}} {{ip_address}} lladdr {{mac_address}} dev {{eth0}} nud reachable

  • Change or replace an ARP entry for the neighbour IP address to eth0:

sudo ip neighbour {{change|replace}} {{ip_address}} lladdr {{new_mac_address}} dev {{eth0}}