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Packet Filtering Blues - 17.Jan.2001 12:52:00 PM

bill@kervaski.com

Posts: 17
Joined: 14.Feb.2001
Status: offline

Very frustrating ... I have a multihomed system ... One external IP and two IP's from a subnet that used to be internal .. I have assigned all three to my external interface .. When I enable packet filtering, the two IP's from our formerly internal routed subnet aren't accessible from the Internet .. With packet filters disabled, everything is fine .. I used these two IP's for my DNS servers .. Any ideas?

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RE: Packet Filtering Blues - 17.Jan.2001 3:48:00 PM

tshinder

Posts: 47490
Joined: 10.Jan.2001
From: Texas
Status: offline

Did you enable routing? You have to create packet filters for each IP address, so maybe that's the problem.

Tom

quote:
Originally posted by bill@kervaski.com:
Very frustrating ... I have a multihomed system ... One external IP and two IP's from a subnet that used to be internal .. I have assigned all three to my external interface .. When I enable packet filtering, the two IP's from our formerly internal routed subnet aren't accessible from the Internet .. With packet filters disabled, everything is fine .. I used these two IP's for my DNS servers .. Any ideas?

(in reply to bill@kervaski.com)

Post #: 2

RE: Packet Filtering Blues - 17.Jan.2001 6:04:00 PM

bill@kervaski.com

Posts: 17
Joined: 14.Feb.2001
Status: offline

Nail right on the head! If I would have read the ENTIRE dialog box, I wouldn't have had a problem. Thanks for your help. ISA Server is awesome, I can't wait to start deploying the product.

Bill