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TCP/IP Filtering Problems

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TCP/IP Filtering Problems - 3.Apr.2004 3:28:00 PM

exchange2003rookie123456

Posts: 3
Joined: 2.Apr.2004
From: MD
Status: offline

We have an exchange 2000 server that is getting slammed with a huge amount of network traffic.
We I run a packet sniffer I see alot of TCP port 1284. We think there are virus infected machines on the network generating this traffic. We are working on cleaning that up , but in the mean time
I tried to implement TCP/IP filtering on the exchange server, which is also a GC server/ Domain controller/DNS Server. I tried by letting all UDP traffic, all IP protocols. In the tcp ports section I have 53,110,25,80,123,88,135,143,443,21,119
I can Succesfully connect to OWA but I cannot pop3
into the Exchange server. I can telnet to port 110
and it responds with a OK ready. When I try to connect with Outlook it fails and says the server may be down.

Thanks in advance