[SR-Users] To Rewrite SDP when request goes from kamailio to outside network

[Daniel-Constantin Mierla]

Hello,

you should use search_body(...) from textops module for searching the 
private IP in the body.

Cheers,
Daniel

On 14/07/14 13:27, Anurag Mishra wrote:
> Hi All,
>
> I have been struggling with this issue for a long and could not find a 
> way to solve it. I have setup FreeSWITCH and Kamailio on the single 
> server but on a private server with a private IP and fronted by 
> firewall. Firewall has all the ports opened.
>
> FreeSWITCH is running with nonat. Kamailio has public IP advertised on 
> port 5060 and private IP on 5070 for phones on LAN. Problem is with 
> outbound calls there is no audio and reason I can see is contact field 
> in SDP has the private IP of the server instead of the public IP.
>
> Internal device to device calls is working fine. I have tried to 
> rewrite the SDP and have written below code, but got no success:
>
>     request_route
>     {
>             xlog("L_DBG", "Request Route Enter");
>             if (is_method("INVITE"))
>             {
>                     xlog("L_DBG", "Request Route Enter in Invite");
>                     if (has_body("application/sdp"))
>                     {
>                             xlog("L_DBG", "Request Route Enter in SDP
>     of Invite");
>                             if (search("IN IP4 PRIVATE_IP"))
>                             {
>                                     xlog("L_DBG", "Request Route
>     Search IN IP4 PRIVATE_IP");
>                                     fix_nated_sdp("8", "PUBLIC_IP");
>                                     fix_nated_sdp("2", "PUBLIC_IP");
>                             }
>                     }
>             }
>     }
>
>
> Can anyone help me to get rid of this.
>
> Thanks,
> Anurag Mishra
>
>
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-- 
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda

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