Re: Effectiveness of STUN protocol

Dan Kolis;

> Yes indeed. Probably the #1 biggest use for STUN short term is going to be
> SIP. It seems like not too much information has to go thru the known
> reachable machine. Maybe just about the same loading as a DNS server?
Wrong. For a host to receive external calls, the binding on a
NAT box must be active all the time that periodic refresh is
required.

OTOH, DNS query is necessary only on demands when a host want to
initiate external calls.

                                                Masataka Ohta