> From: Jeffrey Hutzelman [mailto:jhutz@xxxxxxx] > On Friday, July 15, 2005 11:48:28 AM -0700 "Hallam-Baker, Phillip" > <pbaker@xxxxxxxxxxxx> wrote: > Agree, for the most part. Fixed port numbers do have some > operational > advantages, though... They certainly have operational advantages for managers of firewalls that don't have the ability to perform filtering that is any more specific. And this had led protocol designers to run every new protocol over port 80 using the firewall bypass protocol HTTP. One nice feature of using DNS is that it means that you can perform a lot of control through the signalling channel alone. _______________________________________________ Ietf@xxxxxxxx https://www1.ietf.org/mailman/listinfo/ietf