[e2e] Internet Draft and survey on P2P in the presence of NAT

[Melinda Shore]

> That is definitely not the architecture used in the UPNP IGD. The thing
> inside the NAT (usually a PC) is expected to request a mapping, and the
> NAT is expected to return the external address and a TCP or UDP port
> number. The application can then listen for incoming calls or UDP
> packets bound to that port.

Sure, it is.  You can do the same thing with midcom.  The
initial assumption was that you will not, not that you
cannot.

Melinda