Question : Limewire

Hello Poeple,

I got a network going and it seems like there is always someone who is installing limewire on the network.  I have the following to show you.
I need to block these ports - i have a BEFSX41 - I need to know how to go abouts this cause if i block a port limewire uses then it will open another port somewhere else.  Please let me know.


00:00:16 TCP from 10.0.0.89:2493 to 210.60.214.21(210.60.214.21):22906
00:00:18 UDP from 10.0.0.89:23775 to 68.13.128.165:3352
00:00:18 UDP from 10.0.0.89:23775 to 66.108.188.242:51566
00:00:18 UDP from 10.0.0.89:23775 to 24.26.68.15:41175
00:00:18 UDP from 10.0.0.89:23775 to 80.230.177.4:31500
00:00:18 UDP from 10.0.0.89:23775 to 84.21.208.89:44256
00:00:18 UDP from 10.0.0.89:23775 to 80.217.39.246:37563
00:00:18 UDP from 10.0.0.89:23775 to 80.99.16.84:38283
00:00:18 UDP from 10.0.0.89:23775 to 222.151.70.34:44733
00:00:18 UDP from 10.0.0.89:23775 to 165.230.161.143:34667
00:00:18 UDP from 10.0.0.89:23775 to 147.32.102.75:8442
00:00:18 UDP from 10.0.0.89:23775 to 213.112.239.175:53828
00:00:18 UDP from 10.0.0.89:23775 to 137.132.232.195:30365
00:00:18 UDP from 10.0.0.89:23775 to 220.1.82.4:60159
00:00:18 UDP from 10.0.0.89:23775 to 128.120.178.230:34410

Thank you and have a nice day.

Answer : Limewire

Multicast is used by some protocols to communicate with each other.  Unless you have some special multicast configuration on your switch, it's treated as a broadcast.  Mutlicast filtering typically limits the packets to a certain percentage of bandwidth and drops the rest.

NAT redirection - this one I'm not totally sure of, but it might mean it gives you the ability to redirect the direction a NAT flow is going, so it goes out one IP but comes back to a different machine - which wouldn't make much sense.  I don't know - have to check your documention on that one.

However, blocking everythign but certain ports might not block the P2P apps - they can port scan and look for open ports.  But it's a start.

HTH