Windows
Linux
Networking
Windows arp -a equivalent in Linux
Displays recently discovered IP-to-MAC address mappings for devices on local networks.
Windows
→
arp -a
Linux equivalents
ip neigh show
ip neigh show
ip neigh show
Overview
What this command does
Displays recently discovered IP-to-MAC address mappings for devices on local networks.
Migration tip:
ip neigh is the modern Linux replacement for arp. Entries may be reachable, stale, delayed or failed depending on their current state.Practical tasks
Common use cases
Show the neighbor table
Displays recently discovered IP-to-MAC address mappings for devices on local networks.
ip neigh show
Show all neighbor entries
ip neigh show dev enp5s0
Show neighbors on one interface
sudo ip neigh flush all
Clear the neighbor cache
Ready to run
Copyable Linux commands
Review paths, device names, package names and permissions before running any command.
ip neigh show
ip neigh show dev enp5s0
sudo ip neigh flush all
Walkthrough
Examples with explanations
ip neigh show # display the neighbor table
ip neigh show dev enp5s0 # filter by interface
sudo ip neigh flush all # clear cached neighbor entriesReference
Common options and variations
| Command or option | Use |
|---|---|
ip neigh show | Show all neighbor entries |
ip neigh show dev enp5s0 | Show neighbors on one interface |
sudo ip neigh flush all | Clear the neighbor cache |
Distro differences
Debian/Ubuntu vs Fedora vs Arch
This command is the same on Debian/Ubuntu, Fedora and Arch Linux when the relevant tool is installed.
| Distribution | Package manager / base | Equivalent command | Difference to notice |
|---|---|---|---|
| Debian/Ubuntu | same command | ip neigh show |
Same command on this distribution. |
| Fedora | same command | ip neigh show |
Same command on this distribution. |
| Arch | same command | ip neigh show |
Same command on this distribution. |
Important
What to watch out for
Flushing the neighbor table can briefly interrupt local connectivity while entries are relearned.
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