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}}`