Subject: [NAT] who is doing double NAT?

From: "Paul Francis" <[email-masked]>
Date: Fri, 30 Nov 2001 12:03:13 -0800

Quick question:

I've noticed all the recent work in IETF on NAT (MIP, SIP, IPsec, and
IPv6 all now have drafts on how to get through app-unaware NATs by
tunneling over UDP), and I'm wondering how many existing peer-to-peer
apps---file sharing, instant messenger, games---already do this trick in
one proprietary way or another.

Thanks in advance for any insights here...

PF