Mikrotik/RouterOS and P2P Blocking

Mikrotik allows one to very easily block the vast majority of P2P traffic on a network. What you want is something like this:

/ip firewall filter add chain=forward p2p=bit-torrent action=drop

Or, for those of you using WinBox:

• Navigate to IP > Firewall
• Click on the big red plus
• General > Chain: forward
• General > P2P: all-p2p
• Action > Action: drop

Credit goes to Atari – without their terribly broken digital download service, I would’ve never been forced to accidentally test this rule. :p