[OpenSIPS-Users] Opensips relaying MESSAGE - source IP problem

[Vallimamod ABDULLAH]

Hi,

Have a look at force_send_socket (http://www.opensips.org/Resources/DocsCoreFcn#toc103)

Regards,
- vma
.

On Nov 5, 2010, at 11:10 AM, Sebastien CRUAUX wrote:

> Hi,
> 
> I'm encountering some issue with my Opensips configuration.
> My Opensips server is configured to relay SIP MESSAGE requests to 
> another server when the destination URI is not located on my server. 
> Here is the part of opensips.cfg which is concerned :
> 
> if (!lookup("location","m")) {
> 
>   switch ($retcode) {
>     case -1:
>     case -3:
>       rewritehost("10.254.230.148");
>       if (is_method("MESSAGE")) {
>     rewriteport("5062");
>       }
>       if (!t_relay()) {
>     sl_reply_error();
>       } exit;
>     case -2:
>       sl_send_reply("405", "Method Not Allowed");
>       exit;
>   }
> }
> 
> My server receives SIP requests on eth0 interface (IP 10.254.31.45) but 
> when it relays the requests to the server 10.254.230.148 it should use 
> eth2 IP (10.254.28.45) as src IP because there is a firewall between the 
> two servers and port 5062 is only allowed for source IP 10.254.28.45. 
> The problem is the following : when I open Wireshark on my Opensips 
> server, I can see that the source IP for the relayed MESSAGE is still 
> 10.254.31.45 so it never reaches the other server ! I don't understand 
> where is the issue, my Linux routing table is OK, when I'm trying to 
> reach 10.254.230.148 from my Opensips server using telnet for example it 
> uses the right interface and the right gateway. Here is my routing table :
> 
> 10.254.230.144 10.254.28.1 255.255.255.240 UG 0 0 0 eth2
> 10.254.31.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
> 10.254.28.0 0.0.0.0 255.255.255.0 U 0 0 0 eth2
> 10.254.29.0 0.0.0.0 255.255.255.0 U 0 0 0 eth3
> 192.168.0.0 10.254.28.1 255.255.255.0 UG 0 0 0 eth2
> 10.254.225.0 10.254.28.1 255.255.255.0 UG 0 0 0 eth2
> 0.0.0.0 10.254.31.1 0.0.0.0 UG 0 0 0 eth0
> 
> Did I miss something in Opensips configuration file ?
> Thanks a lot for your help.
> 
> Best Regards,
> 
> Sebastien
> 
> 
> 
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