[Asterisk-Dev] Has anyone got Asterisk working behind a NAT connection to users within a NAT

[Jerris, Michael MI]

Please take this to the users list or IRC.

Thanks
Mike
 

> -----Original Message-----
> From: asterisk-dev-bounces at lists.digium.com 
> [mailto:asterisk-dev-bounces at lists.digium.com] On Behalf Of 
> Fats Neutron
> Sent: Monday, April 11, 2005 10:07 AM
> To: asterisk-dev at lists.digium.com
> Subject: [Asterisk-Dev] Has anyone got Asterisk working 
> behind a NAT connection to users within a NAT
> 
> I was wondering if anyone has managed to get a working 
> solution with asterisk behind a NAT connecting to external 
> sip users behind another NAT.
> 
> I have been using iax for the asterisk box without any issues 
> including internal and external connections as well as 
> connecting multiple asterisk boxes together with shared dial plans.
> 
> However, and I know this is a running issues, I cannot get 
> external sip users behind a NAT to be able to successfully 
> connect to asterisk when it's behind a NAT as well.
> 
> The external sip user correctly registers with asterisk and I 
> can dial their phone and they can dial into to any phone 
> internal to the network. They can even hear my conversation 
> when they use an external stun server (in this case 
> stun.xten.net) but they cannot hear me.
> 
> When debugging I realise that the ip addresses are not 
> pointing at the right internal server and hence the traffic 
> never gets through.
> 
> I have been looking at using ser but after compiling and 
> testing it I never found a solution owing to it's complexity 
> and the possibility that I would need to get ser to answer 
> calls on port 5060 and potentially redirect them to another 
> port (say 5061) for the sip phones.
> 
> I have done port forwarding at both ends dealing with the 
> usual ports of 5060, 4569 and 5036 as well as opening up the 
> rtp ports for the voice traffic on 10,000 to 20,000.
> 
> Is there a way without asterisk being on an external ip?
> 
> Any help would be useful especially if someone has managed to 
> get a working system.
> 
> Thanks or your help.
> 
> Regards
> Fats
> 
> --
> Fats Neutron
> Fats.neutron at grandmore.com
> 
> 
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