Bug#454115: on pc-to-pc twinkle sends INVITE to unknown IP 81.169.145.87:5060 (registrar not configured)

[Mikael Magnusson]

Tim Rühsen wrote:
> Package: twinkle
> Version: 1:1.1-2+b1
> Severity: normal
> 
> am trying to connect pc-to-pc (as described on the twinkle homepage, but 
> without using name - so i just enter the destination IP 192.168.0.101 for 
> example).

Why can't you add a name?

> I just enter the desired IP an hit 'Dial' which results in '503 Service 
> Unavailable'.
> In the log i find that twinkle contacts the IP 81.169.145.87:5060, no matter 
> what IP i selected.
> UserProfile/SIPServer/Registrar is empty and 'Register at startup' is off.
> 'Use Outbound Proxy' is off.
> NAT: 'NAT traversal not needed' is on.
> 
> Here is the extract from the log:
> +++ 30-11-2007 12:40:28.187366 INFO SIP ::send_sip_udp
> Send to: 81.169.145.87:5060
> INVITE sip:1921680101 at openmediasystem.de SIP/2.0
> Via: SIP/2.0/UDP 192.1.11.218;rport;branch=z9hG4bKlztaveet
> Max-Forwards: 70
> To: <sip:1921680101 at openmediasystem.de>
> From: "Tim Ruehsen" <sip:tim at openmediasystem.de>;tag=frctk
...
> 
> That unknown IP 81.169.145.87 must somewhere being hardcoded...
> I don't want Twinkle to connect an unknown IP which can't be switched off. Do 
> you?
> 

Apparently twinkle thinks 192.168.0.101 is a telephone number, not an IP 
address, and it got translated to 1921680101 and your domain name is 
appended resulting in 1921680101 at openmediasystem.de. When sending the 
INVITE request to 1921680101 at openmediasystem.de, twinkle looks up the IP 
address of openmediasystem.de, which is 81.169.145.87.

Mikael