[Ekiga-list] How to troubleshoot ekiga ?

[Damien Sandras]

Hi,

>
> Hi,
>
> thank you for this very quick answer.
>
> I failed to contact sip:500 at ekiga.net.
>
> the file "output.txt" can be found at :
>
> http://www.collinrichard.info/output.txt
>
> To discard any local network problem I have disabled any firewall on my
> computer.
>

Ekiga sends this PDU :
REGISTER sip:ekiga.net SIP/2.0
CSeq: 1 REGISTER
Via: SIP/2.0/UDP
88.147.20.247:1442;branch=z9hG4bK7c3b6960-a628-db11-8c5c-00e018e4ccae;rport

As you can see, the Via contains your public IP address.

Ekiga.net answers with this :
SIP/2.0 406 Not Acceptable
CSeq: 1 REGISTER
Via: SIP/2.0/UDP
192.168.2.222:5063;branch=z9hG4bK7c3b6960-a628-db11-8c5c-00e018e4ccae;rport=1442;received=88.147.20.247
Server: Sip EXpress router (0.9.6 (i386/linux))

As you can see, the Via contains your private IP address and the
registration is rejected because this a private IP.

My conclusion is that you have a NAT router and that NAT router is
rewriting the SIP headers... Rewriting SIP headers to replace private
addresses by public ones is not a problem, but the opposite is a bug of
the router!

Perhaps try without STUN and see if it is better? Probably the router is
puzzled to see its public address in the PDUs.

You can also try to see if you can disable that somehow at the hardware
level.

Damien