hi, I am using freeswitch as proxy server, does freeswitch provide such SDP masquerading ? I know this is not the right place to ask this question but still does any one have any information about it ?
thanx in advance. with regards Pankaj anand On Tue, Feb 9, 2010 at 5:13 PM, Simon Morlat <[email protected]>wrote: > When the nat is detected to be symmetric, (that is we don't receive STUN > replies from a different IP address than the one that was the > destination of the request), it means that there is no way for media > stream go inside the subnetwork. Thus we leave the private address > hoping that the SIP proxy will make some SDP masquerading and relay. > > Simon > > Le vendredi 05 février 2010 à 20:25 +0530, pankaj anand a écrit : > > > > > > On Wed, Feb 3, 2010 at 11:12 PM, pankaj anand > > <[email protected]> wrote: > > hi, > > I am using linphone 3.2.0.99 build from sources on ubuntu > > 9.04 > > > > > > I am using it behind a NAT and it is portRestrictedNat > > ( that i have tested with some other client). > > > > somehow i found that the stun client is not behaving > > correctly, Instead of sending Ip address my Nat server and > > punched hole port no , it sends the local ( private ) ip > > addrss of my machine in SDP information. > > > > > > in logs i see that it says Symmetric nat detected for audio > > port. > > when I opened the code, I found that I sends a single message > > to the Stun Server and on the reply of that single message it > > can identify that what type of NAT is being used. I > > > > I read few thing on the net about STUN after that I could figure it > > out that it is quite possible to detect required type of NAT with a > > single STUN message. > > > > > > > > > > please, Correct me if i am wrong. > > > > > > BTW what is the meaning of this line in the code > > > > > > *id=resp.msgHdr.tr_id.octet[0]; > > this lines specifies the transaction id of the message. > > > > > > > > I don't understand the STUN protocols internal that is why > > couldn't understand this code. > > > > > > > > > > thanx in advance. > > > > > > Pankaj > > > > But still i m facing few problems behind the NAT. when i run > > testNatType function it generates that the NAT type is port restricted > > Nat but linphone as a client is not able communicate outside the LAN > > or on public internet. > > > > > > > > _______________________________________________ > > Linphone-users mailing list > > [email protected] > > http://lists.nongnu.org/mailman/listinfo/linphone-users > > >
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