asterisk users - Sep 2005 - IAX Trunking Weirdness

I am having trouble getting trunking to work between a couple of my servers.

All servers are running 1.0.9 stable version, and are working perfectly. All 
have a Zaptel card of some description, so timing is not a problem. Each server 
has a definition for each other server, using RSA auth, and qualify=yes (just so
I can see ping times). trunk=yes is on globally, AND in each peer/friend
definition.

IAX2 SHOW PEERS shows a (T) next to each server, indicating that a trunk will be
established.

Servers on the same LAN segment seem to trunk OK. (IAX2 TRUNK DEBUG shows 
meaningful info).

Conenctions where 1 server is behind a firewall works fine, but trunking does 
not seem to work. The only other difference is the codec. On the remote servers 
(the ones behind the firewalls), I'm running G729 (the Intel one). The
LAN-based
servers all talk to each other using G.711.

Anyone have any ideas?

For those who are interested, the problem is being caused by IAX using the wrong
  outside IP address as it's source address.

(Multi-homed firewall with numerous virtual interfaces). The workaround was to 
add additional definitiions to the other servers, so the connection will be 
trunked from the originating (incorrect) address.

Apparently there is a patch against CVS HEAD which allows the definition of the 
source address on a per-peer basis.


=========================================Rod Bacon
Empowered Communications
Ground Floor, 102 York St. South Melbourne
Victoria, Australia. 3205
Phone: +613 99401600    Fax: +613 99401650
FWD: 512237                   ICQ: 5662270
=========================================

Rod Bacon wrote:
> I am having trouble getting trunking to work between a couple of my 
> servers.
> 
> All servers are running 1.0.9 stable version, and are working perfectly. 
> All have a Zaptel card of some description, so timing is not a problem. 
> Each server has a definition for each other server, using RSA auth, and 
> qualify=yes (just so I can see ping times). trunk=yes is on globally, 
> AND in each peer/friend definition.
> 
> IAX2 SHOW PEERS shows a (T) next to each server, indicating that a trunk 
> will be established.
> 
> Servers on the same LAN segment seem to trunk OK. (IAX2 TRUNK DEBUG 
> shows meaningful info).
> 
> Conenctions where 1 server is behind a firewall works fine, but trunking 
> does not seem to work. The only other difference is the codec. On the 
> remote servers (the ones behind the firewalls), I'm running G729 (the 
> Intel one). The LAN-based servers all talk to each other using G.711.
> 
> Anyone have any ideas?
> 
> 
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