[SR-Users] rtpproxy question

[Albert Petit]

Hi ,

Sorry for previous question. Finally it seems i got confused because
traffic my UA was sending was not properly encrypted .Then when doing
server tcpdump wireshark was seeing it still as RTCP (and not SRTCP) when
jumping on rtpproxy :-) When fixed problem in user agent all traffic is
SRTCP and rtpproxy just bridges it to the destination.

I was thinking of some interaction because new feature at
https://github.com/sipwise/mediaproxy-ng ( (Bridging between RTP and SRTP
user agents) but i understand this feature to decode SRTP can only be
enabled when mediaproxy-ng is used (that feature is not supported by
rtpproxy,  but by mediaproxy-ng correct?).

 BTW can this feature be enabled  easily when mediaproxy-ng is used? Is
that enabled using following flags on rtpproxy_offer etc? (*s, S, p, P* -
These flags control the RTP transport protocol that should be used towards
the recipient of the SDP. If none of them are specified, the protocol given
in the SDP is left untouched. Otherwise, the "S" flag indicates that SRTP
should be used, while "s" indicates that SRTP should not be used. "P"
indicates that the advanced RTCP profile with feedback messages should be
used, and "p" indicates that the regular RTCP profile should be used. As
such, the combinations "sp", "sP", "Sp" and "SP" select between RTP/AVP,
RTP/AVPF, RTP/SAVP and RTP/SAVPF, respectively.)

Thanks
Albert



2016-06-01 12:18 GMT+02:00 Albert Petit <albert.petit at genaker.net>:

> Hi list
>
> I have installed a newer version of rtpproxy (2.0) in our development
> server , i was happy because it brings lot of performance improvements
>
> However i have found an issue when clients use TLS+SRTP
>
> In that scenario i do not want rtpproxy to decrypt/reencrypt the traffic
> as my B2BUA does that or in some scenarios we do plan to add end to end
> encryption. RTPProxy 1.X was doing that perfectly
>
> Instead since i use rtpproxy 2.0 all SRTP and SRTCP traffic is decrypted
> by rtpproxy and i receive it clear in the B2BUA
>
> How can i disable this new feature and that rtpproxy just keeps sending
> the received SRTP/SRTCP stream without decrypting it?
>
>
>
>
>
>


-- 
Albert Petit
Agile Software Architect <http://www.linkedin.com/in/albertpv>
GENAKER - Esi Mobile Solutions SL
www.genaker.net
Phone +34 932 422 885
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