[77036] in North American Network Operators' Group
Re: Port 25 filters - how many here deploy them bidirectionally?
daemon@ATHENA.MIT.EDU (Todd Vierling)
Wed Jan 12 01:14:19 2005
Date: Wed, 12 Jan 2005 01:13:11 -0500 (EST)
From: Todd Vierling <tv@duh.org>
To: Joe Rhett <jrhett@meer.net>
Cc: Suresh Ramasubramanian <ops.lists@gmail.com>, nanog@nanog.org
In-Reply-To: <20050112004114.GD89277@meer.net>
Errors-To: owner-nanog-outgoing@merit.edu
On Tue, 11 Jan 2005, Joe Rhett wrote:
> > Applying port 25 filters both ways (inbound and outbound to your
> > dialup pool, instead of just outbound port 25 filtering) would help in
> > such a situation.
>
> Inbound 25 filtering has nothing to do with the situation listed above.
No, but inbound filtering *from* port 25 (to any port) does address the
problem, as I mentioned earlier in this thread.
--
-- Todd Vierling <tv@duh.org> <tv@pobox.com>
