[Asterisk-Users] iax registration & port number

[Rich Adamson]

> Rich Adamson wrote:
> > I'm trying to config a temp iax connection between two current * boxes.
> > One is behind a firewall, the other uses a registered IP.
> > 
> > I config'ed the * box behind the firewall to 'register' with the one that
> > has a registered IP. The registration is occuring and the CLI indicates:
> >  -- Registered 'xxx2yyy' (AUTHENTICATED) at 1.2.3.193:50192
> >  -- Registered 'xxx2yyy' (AUTHENTICATED) at 1.2.3.193:50262
> > 
> > However, I'm confused about the :50192 and :50262 port numbers shown 
> > above. I was expecting to see udp 4569 instead.
> > 
> > I was hoping to use the registration process to avoid having to write
> > a firewall rule allowing udp 4569 inbound. Am I off base or just missing
> > something simple here? How do I force registration to use udp 4569 for
> > both source and destination ports instead of the changing port numbers?
> 
> The NAT router is translating the SOURECE port, which is perfectly fine.

Okay, I can buy that. But when I route an iax call from the registered IP
* to the one hiding behind the firewall, the firewall gives an immediate
icmp port unreachable as the call setup uses 4569/4569 ports (not the 
register ports). Maybe my Dial(IAX... is messed up then?