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Win2k ip filtering problem

deftech

Member
I just recently started messing with ip packet filtering in win2k, and it works fine, except, I can't seem to get DNS to work. I have to allow all UDP packets through for DNS to work properly on the box. I have tried port 53 for tcp and udp and nothing. I currently have port 53/tcp allowed, and that works fine, but if I put in 53/udp as the only allowed udp packets, dns does not work. I've called my isp to verify they use 53 on tcp and udp, and they say that is all they use, so they're not using any special ports.

Any one have a clue why this is happening? I'd like to block some more udp probes but I can't! yerg..
 
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