On Tue, 10 Jun 2008, David Villasmil wrote:
True (about getting the IP from the register), but that's putting more
processing on the server, I'd rather let ths UAC do the ip resolution when
we're talking thousands of clients (Which I am)
The behavior I described is made on the client/endpoint which look at
the received and rport in the answer to a request sent to the server.
(and this is not a DNS resolution: this is just "looking at"...)
The server in this case don't have any processing to do anymore: he always
receive the correct contact header.
No need for STUN to have a correct IP/port for SIP even behind symmetric
NAT. ;)
tks,
Aymeric MOIZARD / ANTISIP
amsip - http://www.antisip.com
osip2 - http://www.osip.org
eXosip2 - http://savannah.nongnu.org/projects/exosip/
Cheers
On Tue, Jun 10, 2008 at 1:59 PM, Aymeric Moizard <[EMAIL PROTECTED]> wrote:
Stun can work even behind symmetric NAT if the stun server was
running on the same socket the SIP server is running... I hope
this feature will come soon!
I can help with this.
Also, SIP don't need to use STUN to work: you can discover your
IP address and port very easily by looking at the REGISTER answer
or OPTIONS answer which contains the "received" and "rport"
parameter.
Of course, symmetric NAT are a nightmare for RTP, but not for SIP...
tks,
Aymeric MOIZARD / ANTISIP
amsip - http://www.antisip.com
osip2 - http://www.osip.org
eXosip2 - http://savannah.nongnu.org/projects/exosip/
On Tue, 10 Jun 2008, Iñaki Baz Castillo wrote:
El Tuesday 10 June 2008 10:44:51 Ali Jawad escribió:
Hi All
I had a lot of problems with STUN and symmetric NAT. The thing is that
it does not always work with symmetric NAT. That would be mostly routers
based on Linux IPTABLES.
STUN **CANNOT** work with symetric NAT. The NAT router maps the internal
port
with a different public port *depending* on the destination IP:port, so
STUN
can't work.
--
Iñaki Baz Castillo
[EMAIL PROTECTED]
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