Blocking limewire and other P2P on my router

Not sure with the custom firmware, but I have a linksys WRT54GL (almost the same hardware), and in the default firmware it is fairly easy to block just about anything. do some research, you will probably find a more descriptive answer

Check to see what port he is using on limewire. Go into router and block that port.

kind of a dick move

Just off topic but...

What is the concern with Limewire?

Limewire is awful. Comes with spyware and the majority of the files are viruses.

Ahhh,,, is there a better option to limewire?

The people who have limewire on there pc are 98% trojan bait. think about it, why do you think they take the time to share things that cost money ? the answer is simple. its so they can bind a trojan to it so once you clicked it they see your screen just like you do and they get everything you ever typed using the keyboard. every password every msn account every bank login all your paypal info. once they run your visa up and run your ebay into the ground they sell the info or trade it off for something.

I have had to fix several computers that have Limewire installed. Not necessarily due to Limewire, but due to the users that downloaded files and didn't know what they were downloading.

However, if you really do need/want to block access. Find which port number he is using, or if possible depending on your router, you can block the protocol via firewall.

Edit:
Lets not turn this talk into a discussion about torrent sites and what they index and keep it on topic about how to help him or suggest different ideas.

If you watch what you do you are safe.