[Freeswitch-users] NAT problems migrating from Version 1.0.trunk (13168M) to Version 1.0.trunk (15166)

[Chris Fowler]

Hi,

We've been using 13168M in production for some time now (works great). 
I want to get us onto the latest build but am having problems getting
NAT to work.

Phones can register; can dial 9999 test #, but after 100 seconds the
call is disconnected with error:
2009-10-16 19:52:26.936618 [NOTICE] sofia.c:4038 Hangup
sofia/internal/1001 at myhost.mydomain.com [CS_EXECUTE]
[RECOVERY_ON_TIMER_EXPIRE]

I took the standard internal.xml and vars.xml files from the new build
and made the following modifications - which worked previously:

modify conf/vars.xml and update
  <X-PRE-PROCESS cmd="set" data="domain=myhost.mydomain.com"/>

  <X-PRE-PROCESS cmd="set" data="bind_server_ip=1.2.3.4"/>
  <X-PRE-PROCESS cmd="set" data="external_rtp_ip=1.2.3.4"/>
  <X-PRE-PROCESS cmd="set" data="external_sip_ip=1.2.3.4"/>

Modify conf/sip_profiles/internal.xml
 <param name="aggressive-nat-detection" value="true"/>  <param
 name="ext-rtp-ip" value="$${external_rtp_ip}"/>  <param
 name="ext-sip-ip" value="$${external_sip_ip}"/>  <param
 name="NDLB-received-in-nat-reg-contact" value="true"/>  <param
 name="NDLB-force-rport" value="true"/>  <param
 name="NDLB-broken-auth-hash" value="true"/>

The big difference I note is that on PRODUCTION (which works) "sofia
status profile internal" yields:
URL                     sip:mod_sofia at 1.2.3.4:5060
BIND-URL                sip:mod_sofia at 1.2.3.4:5060;maddr=10.250.35.224

But on Test I see:
URL                     sip:mod_sofia at 10.250.66.210:5060
BIND-URL                sip:mod_sofia at 10.250.66.210:5060

Any ideas?

Thanks, Chris.