Intercept ARP packets on specified network interface and log all activity.

• Install latest version of Go.
• Run: go build main.go -o arplogger in the root folder.
• Install (optional): go install .

The following command line flags are available:

-interface Network interface to listen ARP packets.
-log Store all ARP activity to log file.
-console Print to console.
-all Dump all ARP packets.
-new Dump only new mapping of IP <-> MAC.

Listen on network interface "en0" and print to console only new pairs of IP <-> MAC:

arplogger -interface en0 -console -new

Listen on network interface "en0" and print to console and save to log file, only new pairs of IP <-> MAC:

arplogger -interface en0 -console -log -new

Listen on network interface "en0" and print to console all incoming ARP packets:

arplogger -interface en0 -console -log -all

Listen on network interface "en0" and print to console and log file all incoming ARP packets. Additionally, display new mapping of IP <-> MAC:

arplogger -interface en0 -console -log -all -new