Yoav Nir wrote: > Why not? While I agree that firewalls are diverse, they are all > made by vendors, and the big firewall vendors all have employees > who participate in the IETF. An IETF standard that allows firewall > traversal for legitimate traffic is very likely to be adopted by > all the vendors. It might not work with some bargain basement > home router you get at Wallmart, but even they eventually get > updated software. According to your theory, a universal NAT traversal protocol should already exists. Masataka Ohta _______________________________________________ Ietf mailing list Ietf@xxxxxxxx https://www.ietf.org/mailman/listinfo/ietf