How to block p2p in home wireless network?

I'm using Linksys Wireless Router at home to share Internet. How do I prevent my children from accessing p2p, thus saving some bandwidth. Is there specific port that I can block?

Public Comments

1. I don't know if you can do that.....just tell them not to get on it!
2. One of the best ways to do this would be to use Port Restrictions. Of course, this will only work if you know which port the p2p program is operating on. Typically you can find out from the website where you would download the p2p software. The link below if for the Linksys Wireless-G Broadband Router. You can access the manual with the link "User Guide" on the right. In Chapter 2 on page 35 it outlines how to block a port. I recommend reading all of Chapter 2 to get a better understanding of the features of the router. It will also allow you to designate the days and times of day that the router will allow Internet access to certain computers on the network.
3. Common ports and the rules to block them are: # kazaa - fasttrack clones add deny tcp from any to any 1214 add deny udp from any to any 1214 # edonkey and clones add deny tcp from any to any 4661-4672 add deny udp from any to any 4661-4672 # winmx and napster add deny tcp from any to any 6257 add deny udp from any to any 6257 add deny tcp from any to any 6699 add deny udp from any to any 6699 # bittorrent add deny tcp from any to any 6881-6889 add deny udp from any to any 6881-6889 # gnutella add deny tcp from any to any 6346 add deny udp from any to any 6346 #edonkey add deny tcp from any to any 4661-4672 add deny udp from any to any 4661-4672 add deny tcp from any to any 5555 add deny tcp from any to any 4242 add deny tcp from any to any 3306 add deny tcp from any to any 2323 add deny tcp from any to any 6667 add deny tcp from any to any 7778