[26658] in North American Network Operators' Group
Re: Selection of Appropriate Local SMTP Relay
daemon@ATHENA.MIT.EDU (Alex P. Rudnev)
Tue Jan 11 13:37:56 2000
Date: Tue, 11 Jan 2000 21:23:30 +0300 (MSK)
From: "Alex P. Rudnev" <alex@virgin.relcom.eu.net>
To: Brandon Ross <bross@mindspring.net>
Cc: nanog@merit.edu
In-Reply-To: <Pine.LNX.3.96.1000111020301.13026J-100000@xymox.netops.mindspring.net>
Message-ID: <Pine.SUN.4.10.10001112122260.5322-100000@virgin.relcom.eu.net>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Errors-To: owner-nanog-outgoing@merit.edu
btw, you could notinstallk 223.255.255.* network on the some routers (cisco for
example), 223.255.254.* only.
On Tue, 11 Jan 2000, Brandon Ross wrote:
> Date: Tue, 11 Jan 2000 02:05:50 -0500 (EST)
> From: Brandon Ross <bross@mindspring.net>
> To: nanog@merit.edu
> Subject: Re: Selection of Appropriate Local SMTP Relay
>
>
> On Mon, 10 Jan 2000, Forrest W. Christian wrote:
>
> > I'm going to make a pitch for the IP-address based method.
> >
> > Specifically, if you have a set of well known IP addresses for common
> > services, thus something like:
> >
> > 223.255.255.1 - Primary DNS
> > 223.255.255.2 - Secondary DNS
> > 223.255.255.3 - SMTP Mail
> > 223.255.255.4 - Time Server
> >
> > You could very easily support this in ANY network. No additional
> > HW/software required.
>
> Not quite, this would actually cause more problems for those of us who use
> wholesalers for our dialup services than it would solve. It's quite
> important to us for many reasons for our customers to use our SMTP
> servers, not our wholesaler's. If each AS directed all the traffic from
> these well known addresses to their 'best' SMTP server, we wouldn't be
> able to stop our customers from sending spam or control the quality of our
> SMTP services.
>
> Brandon Ross Network Engineering 404-815-0770 800-719-4664
> Director, Network Engineering, MindSpring Ent., Inc. info@mindspring.com
> ICQ: 2269442
> Read RFC 2644!
> Stop Smurf attacks! Configure your router interfaces to block directed
> broadcasts. See http://www.quadrunner.com/~chuegen/smurf.cgi for details.
>
>
>
Aleksei Roudnev,
(+1 415) 585-3489 /San Francisco CA/
