[OpenSIPS-Users] NATed REGISTERs are failing

[Jeff Pyle]

Iñaki (or anyone),

Can you tell me where in RFC3261 it refers to, "...if a proxy receives a request in which Via sent-by differs from real source address, then 'received=PUBLIC_IP' must be added to top Via."

I'm in the process of fighting another battle where this information would be very, very handy.  I can't seem to find it myself.

Thanks,
Jeff




-----Original Message-----
From: users-bounces at lists.opensips.org [mailto:users-bounces at lists.opensips.org] On Behalf Of Iñaki Baz Castillo
Sent: Wednesday, October 29, 2008 6:04 PM
To: users at lists.opensips.org
Subject: Re: [OpenSIPS-Users] NATed REGISTERs are failing

El Miércoles, 29 de Octubre de 2008, Bogdan-Andrei Iancu escribió:
> By any chance, do you have a "reply_to_via=1" in your config (in the 
> global parameter block) ?

But anyway... why should be Via sent-by be used to send the response?
RFC 3261 says clearly that if a proxy receives a request in which Via sent-by differs from real source address, then "received=PUBLIC_IP" must be added to top Via.
If the request is forwarded stateless, when the reply arrives it must be sent to the "received" address (if it exists).

AFAIK "reply_to_via=1" is needed for implementing a stateless proxy with OpenSIPS, isn't it? But in that case, the responses must be sent to "received" address when present.

Am I wrong?

--
Iñaki Baz Castillo