[Asterisk-Users] SIP & IAX behind NAT

[Peter Zeltins]

OK, I got IAX to work. Which SIP bone I should break to force it into
working? ;)

Peter

> IAX should work well behind NAT without further configuration than just
> a single port forward. RTP based protocols such as MGCP, SIP and H.323
> require helper agents on the NAT box to work, although SIP can be forced
> to work by slightly breaking it.
>
> roy
>
> On Mon, 2003-10-27 at 10:00, Peter Zeltins wrote:
> > I'm trying to set up * server behind NAT. The box is set up as DMZ in
> > my DSL router, i.e. all incoming connections without explicit port
> > mapping are forwarded to *. So far I'm unable to get this setup to
> > work for either IAX or SIP (tried IAXComm & XLite softphones on public
> > IP address). Data seems to come in fine (IAX/SIP debug shows message
> > interaction taking place), but there is no audio.
> >
> > Am I missing something in */router setup or such thing cannot be done?
> > I suspect that I need to override local IP address being sent out in
> > SIP/IAX packets, but I see no such option in either iax.conf or
> > sip.conf
> >
> > TIA,
> > Peter
>
>