[OpenSIPS-Users] IP check in FixContact (nat_traversal.c)

[Iñaki Baz Castillo]

El Martes, 24 de Febrero de 2009, Thomas Gelf escribió:
> Iñaki Baz Castillo schrieb:
> > 2009/2/24 Thomas Gelf <thomas at gelf.net>:
> >> I had some trouble using fix_contact (from nat_traversal modul) with
> >> clients using STUN behind symmetric NAT
> >
> > I can't understant. When a client performs the STUN test and discovers
> > "symmetric NAT" it MUST NOT use STUN discovered data since it's not
> > useful behind that kind of router.
>
> You are right. In fact, I discovered that in this case it wasn't the
> clients fault - it was a stupid ALG. But the problem remains the same,
> and there are for sure stupid clients or other scenarios out there,
> where correct IP and wrong port are going to be announced (outdated
> STUN information, port changed on FW because of missing keep-alives,
> whatever...).

Please, add your ALG SIP router model to this wiki:
  http://www.voip-info.org/wiki/view/Routers+SIP+ALG

Thanks a lot :)


-- 
Iñaki Baz Castillo