Re: bye from gateway going to local address

El Thursday 25 October 2007 12:17:01 Richard Bennett
escribió:
> 1.2.3.201  = Openser proxy
> 1.2.3.204 = Cisco gateway
> 62.1.2.122 = 2nd Openser proxy with user agent module
external IP
> 192.168.1.10 = 2nd Openser proxy with user agent module
internal IP
> 192.168.1.24 = Actual user agent internal IP.
>
> U 62.1.2.122:5060 -> 1.2.3.201:5060
> INVITE sip:02222343591.2.3.201:5060;transport=udp SIP/2.0.
> Record-Route:
<sip:192.168.1.10;lr=on;ftag=3682a625cb42f09fo0;
                                 ^^^^^^^
>
vsf=AAAAAEVVQkRwAwABGHFFUV5SAFpCaWVuc2ludmVzdG1lbnQuY29t>
.
> Via: SIP/2.0/UDP
192.168.1.10;branch=z9hG4bK811a.687048d4.0.
> Via: SIP/2.0/UDP
192.168.1.24:5060;branch=z9hG4bK-83909174.

The problem is in the Record-Route added by LAN OpenSer
(192.168.1.10).

It should set:
  Record-Route: <sip:62.1.2.122:5060 SIP/2.0>

so in-dialog request from public OpenSer (1.2.3.201) would
be ruted to LAN 
OpenSer instead of 192.168.1.10. In fact, if you run in
public OpenSer:
   tcpdump -i any -n port 5060
you'll see UDP packets to  192.168.1.10:5060 when receiving
the BYE from 
Cisco.

Solution: you should use in LAN OpenSer:
  record_route_preset("62.1.2.122:5060");
isntead of:
  record_route();

Check it since I've never user that function.

Regards.


-- 
Iñaki Baz Castillo
ibcin.ilimit.es

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