Hi Adrian, The MediaProxy 2.0 supports the change of NAT IP in an established call?.
Regards, Gonzalo. > Hi Gonzalo, > > The current mediaproxy will be replaced by MediaProxy 2.0 that > addresses this issues. > > Regards, > Adrian > > On Apr 24, 2008, at 8:58 PM, Gonzalo J. Sambucaro wrote: > >> Hi, >> By the timeout implementation in now more secure the support of >> the NAT >> IP change. To change the Caller/Called address the mediaproxy waits >> for >> two seconds that the Caller/Called doesn't send any rtp/rtcp packet >> and >> checking the SSRC. This change was tested and in production working >> well. >> >> Also I found a bug in the asymmetric RTP UA support. This file >> contains >> the fix of the bug, the solution to the bug is very simple. How can >> I do >> to report the bug and the solution? >> >> Regards >> >>> "Gonzalo J. Sambucaro" <[EMAIL PROTECTED]> writes: >>> >>>> [...] >>>> 1) When the first rtp packet of a source arrives, save the SSRC >>>> field in >>>> the MP. >>>> - Save the SSRC of the caller. >>>> - Save the SSRC of the called. >>>> >>>> 2) If arrives a rtp packet with unknown source IP but with the >>>> same SSRC >>>> field of some of the two streams, updates the binding (with the >>>> new IP >>>> detected) between the caller and the MP or between the called and >>>> the MP >>>> according to the field SSRC previously saved. >>> >>> An attacker would have to guess/sniff the SSRC and then could take >>> over >>> the rtp session? (maybe could be fixed by only allowing to take over >>> after some timeout) >>> On the other hand if he can sniff ... >>> >> >> -- >> Gonzalo J. Sambucaro >> Ingeniería de Software >> Tel: +54-341-4230504 >> MSLC >> [EMAIL PROTECTED] >> www.mslc.com.ar >> Ocampo y Esmeralda - Vivero de Empresas de Base Tecnológica >> Ciudad Universitaria Rosario UNR, CCT CONICET >> Rosario - Santa Fé - >> Argentina<rtphandler.py.tgz>__________________________________________ >> _____ >> Devel mailing list >> [email protected] >> http://lists.openser.org/cgi-bin/mailman/listinfo/devel > > -- Gonzalo J. Sambucaro Ingeniería de Software Tel: +54-341-4230504 MSLC [EMAIL PROTECTED] www.mslc.com.ar Ocampo y Esmeralda - Vivero de Empresas de Base Tecnológica Ciudad Universitaria Rosario UNR, CCT CONICET Rosario - Santa Fé - Argentina _______________________________________________ Devel mailing list [email protected] http://lists.openser.org/cgi-bin/mailman/listinfo/devel
