RE: NAT Traversal

[Melinda Shore <mshore@cisco.com>]

At 08:52 AM 3/6/02 +0100, Henrik Levkowetz wrote:
>Yes, traversal solutions through existing NATs does not seem to
>be in their [midcom] charter.

It is, actually, but the revised charter hasn't been posted.
The work is being referred to informally as "pre-midcom," and
includes STUN and a yet-to-be-named protocol to allow NATted
servers.

Please note that in the case of both midcom and pre-midcom we're
trying to allow NATted endpoints to find their public addresses
so that they can embed correct information in packet payloads
(for protocols like SIP, H.323, RTSP, etc.).  We're *not* assuming
that the endpoint is going to dink with the IP header or that
the IP header is not going to be touched by the NAT.  We're up a
layer or two.

Melinda