[84547] in North American Network Operators' Group

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Re: commonly blocked ISP ports

daemon@ATHENA.MIT.EDU (Petri Helenius)
Thu Sep 15 04:53:55 2005

Date: Thu, 15 Sep 2005 11:53:16 +0300
From: Petri Helenius <pete@he.iki.fi>
To: karim.adel@gmail.com
Cc: peter@peter-dambier.de, nanog@merit.edu
In-Reply-To: <e05f392905091500297e5cdc45@mail.gmail.com>
Errors-To: owner-nanog@merit.edu


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


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