More precisely, FreeSWITCH does not have any issues to handle a remote endpoint behind NAT if the endpoint correctly sets the rport parameter in the Via field (RFC3581). In case the endpoint does not, FreeSWITCH can force rport, meaning it will answer to the endpoint as if rport was set. This mechanism does not have anything to do with STUN/ICE or other external mechanism and it works perfectly. David Ponzone Direction Technique email: david.ponzone@ipeva.fr tel: 01 74 03 18 97 gsm: 06 66 98 76 34 Service Client IPeva tel: 0811 46 26 26 www.ipeva.fr - www.ipeva-studio.com Ce message et toutes les pièces jointes sont confidentiels et établis à l'intention exclusive de ses destinataires. Toute utilisation ou diffusion non autorisée est interdite. Tout message électronique est susceptible d'altération. IPeva décline toute responsabilité au titre de ce message s'il a été altéré, déformé ou falsifié. Si vous n'êtes pas destinataire de ce message, merci de le détruire immédiatement et d'avertir l'expéditeur. Le 26/07/2011 à 07:23, curriegrad2004 a écrit :
In this case there's nothing I can think of that FreeSWITCH can do in this case if the remote endpoint doesn't support NAT at all.
You may want to try the nf_nat_sip module at the remote end, but it may not be the solution you're looking for
On Mon, Jul 25, 2011 at 8:48 PM, Narendra Sirugudi <nsirugudi@gmail.com> wrote:
Hi, Thanks for your reply.
Maybe my problem definition is not fully clear: For my use case, having addtional configuration on the SIP UA (softphone) side is not feasible. I am looking for solution on the Freeswitch side(sitting on the public network). Not all SIP UA clients (softphones) will have the solution of working around NAT, let alone STUN client support.
I observed the Freeswitch has some features like AutoNAT etc. Aren't these of any help for the use case i have ? I just started reading on the AutoNAT feature. The documentation of AutoNAT seems to suggest that freeswitch itself sits behind a NAT. This is not the same as my use case.
To summarize: Does freeswitch have any method of detecting that the remote SIP UA is behind a NAT and taking some action based on that ? Any suggestions are welcome.
thanks, --naren On Tue, Jul 26, 2011 at 7:09 AM, curriegrad2004 <curriegrad2004@gmail.com> wrote:
The SIP UA only needs to be configured to use NAT in this case. The FS Server does not need any configuration in this case.
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