rtmon

Monitor kernel routing table changes

TLDR

Save all network state changes to a file

$ sudo rtmon file path/to/file

Specify the type of change to log

$ sudo rtmon file link

rtmon monitors and records network state changes to a file. It captures link changes, address modifications, and routing table updates for later analysis.The output can be replayed or analyzed to understand network configuration history.

PARAMETERS

file path

Output file for network state changes

type

Filter by change type (link, address, route)

INSTALL

sudo apt install iproute2

sudo pacman -S iproute2

sudo apk add iproute2

sudo zypper install iproute2

brew install iproute2

nix profile install nixpkgs#iproute2

CAVEATS

Requires root privileges. Output file can grow large over time with frequent changes.

HISTORY

Part of iproute2 package, providing network monitoring and logging capabilities.