North American Network Operators Group

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Re: commonly blocked ISP ports

  • From: Petri Helenius
  • Date: Thu Sep 15 04:54:36 2005

Kim Onnel wrote:

    80 deny udp any any eq 1026 (3481591 matches)
This will make one out of 4000 of your udp "sessions" to fail with older stacks which have high ports from 1024 to ~5000.

Pete