nanog mailing list archives

Re: How do you stop outgoing spam?


From: Petri Helenius <pete () he iki fi>
Date: Tue, 10 Sep 2002 10:02:13 +0300


Eliot Lear wrote:

Please be aware that this could have unintended consequences, and should
be used in very constrained ways.  In particular, there are any number
of applications, including VPN applications that use port 80.  I would
recommend that only specified destinations get such treatment, if you
apply it at all.

If somebody is ignorant enough to implement IP over HTTP, why should
they be accommodated? There are numerous reasons why there are other 
port numbers to TCP than 80 and other protocol numbers to IP than 6.

We could save a lot by eliminating unneccessary headers...

Pete


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