Network
The arp command
Shows the ARP table: the mapping between local IP addresses and network MAC addresses.
Syntax
arp [-a]Most useful options
-aShows all known hosts-d IPDeletes an entryCopy-ready examples
$ arp -aHosts on the local networkYou can try them in the browser terminal: it does not touch your computer.
Typical mistakes
- The table fills itself as you talk to other hosts; it can be empty at first.
FAQ
What is a MAC address?
The unique physical identifier of each network card.
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