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Re: Providers removing blocks on port 135?

  • From: Miquel van Smoorenburg
  • Date: Sun Sep 21 05:52:10 2003
  • Distribution: cistron
  • Newsgroups: lists.nanog

In article <[email protected]net>,
Justin Shore  <[email protected]> wrote:
>Now I'm going to get even more off-topic.  It occurs to me that major
>changes to a protocol such as SMTP getting auth should justify utilizing a
>different tcp/ip port.  Think about it like this.  If authenticated forms
>of SMTP used a different TCP/IP port we netadms could justify leaving that
>port open on these same dynamically assigned netblocks in the theory that
>they are only able to connect to other authenticated SMTP services.  
>Doesn't that seem logical?

That's not exactly a new idea.

http://www.faqs.org/rfcs/rfc2476.html  (december 1998).

Mike.