oui.py

Little program to lookup the vendor string for MAC addresses.

The first 3 octetts of a MAC address denote the manufacturer of the network card. I use this at work, when analyzing unknown or unwanted traffic, to know who the culprit may be.

Usage:

python3 oui.py MAC [--force] [--file /var/tmp/oui.txt]
--force - Forces the download of the file, ignoring the one week caching
--file - Overrides the storage location and also uses an existing file.

This project is in the public domain.