[SR-Users] How to use the ip parameter in rtpproxy_manage()

[Daniel-Constantin Mierla]

Hello,

the second parameter is to give the IP to appear in sdp, instead of the 
rtpproxy ip.

What you can try is to update the sdp with fix_natted_sdp() with the 
source IP as seen by the LB, then do msg_apply_changes() and pass the 
flag to trust the ip in sdp -- not sure it is going to work, by worth 
giving a try.

Perhaps a flag to overwrite the source IP would be good.

Cheers,
Daniel

On 29/08/14 11:44, Sebastian Damm wrote:
> Hi,
>
> I have the following setup:
>
> UAC ---> LB ---> Proxy ---> GW
>
> In NAT scenarios the loadbalancer detects it, but the proxy 
> communicates with the RTP proxy. I want to send the original caller IP 
> as detected by the loadbalancer (and transported to the proxy) to the 
> RTP proxy.
>
> As far as I understand the documentation of the rtpproxy module, I 
> could call rtpproxy_manage with a second parameter, indicating which 
> IP address should be sent to the RTP proxy. I tried sending a 
> pseudovariable, both within quotes or not, or even a static string. 
> But when I look at those messages sent to the RTP proxy, there's 
> always the IP from where the SIP packet was received (the loadbalancer 
> IP) in the request.
>
> Previously we used the "r" parameter, sending the original IP from the 
> SDP to the proxy. But due to strange behavior of some UACs, we want to 
> get rid of that.
>
> Do I misunderstand the second parameter?
>
> This is what the documentation says:
> /    ip_address/ - new SDP IP address.
>
> Unfortunately, I couldn't find any example using this.
>
> Best Regards,
> Sebastian
>
>
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-- 
Daniel-Constantin Mierla
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