Phillip Hallam-Baker wrote: > You are incorrect. > > Firewalls can be used for many purposes. Authenticated traversal is well > established in the firewall model. Given the diversity of firewalls and their operations, it's practically impossible. > There is a copious amount of prior art. Remember what happened to path MTU discovery. Just as path MTU discovery for IPv6 won't work, you can't expect firewalls in the real world behave friendly to your own firewall traversing protocols. Masataka Ohta _______________________________________________ Ietf mailing list Ietf@xxxxxxxx https://www.ietf.org/mailman/listinfo/ietf