Re: [Ekiga-list] Why can Ekiga not register to ekiga.net but to an Asterisc server?

[Jānis Rukšāns <thedogfarted gmail com>]

On Thu, Oct 22, 2009 at 8:02 PM, Eugen Dedu
<Eugen Dedu pu-pm univ-fcomte fr> wrote:
> Detlef Lechner wrote:
>> Hi,
>>
>> Why can Ekiga not register me to ekiga.net but to an Asterisc server?
>> http://pastebin.ca/1637333
>
> I do not know, it should work:

It doesn't work because STUN reports different external IP address
(94.222.108.64) than seen by Ekiga.net (188.102.88.163).

2009/10/22 11:15:16.308   0:00.844       StunDetector:0xb7492b70
 OPAL    STUN server "stun.ekiga.net" replies Cone NAT, external IP
94.222.108.64

SIP/2.0 606 Not Acceptable
CSeq: 1 REGISTER
Via: SIP/2.0/UDP
94.222.108.64:5070;branch=z9hG4bKda78eb15-59bd-de11-8757-0010c6ddb9a7;rport=5070;received=188.102.88.163
Server: Kamailio (1.4.0-notls (i386/linux))
From: <sip:bullgard ekiga net>;tag=0210b415-59bd-de11-8757-0010c6ddb9a7
Call-ID: d6fab315-59bd-de11-8757-0010c6ddb9a7 T43
To: <sip:bullgard ekiga net>;tag=c64e1f832a41ec1c1f4e5673ac5b80f6.d015
Content-Length: 0

I was under impression that Ekiga.net rejects REGISTER only if Via
sent-by is in private address space (see [1,2]) but here Via sent-by
is public IP. My only guess is that Ekiga.net compares Via sent-by and
received and rejects REGISTER if they don't match. May I ask why there
are such restrictions?

[1] https://bugs.maemo.org/show_bug.cgi?id=4259
[2] http://sourceforge.net/tracker/?func=detail&aid=2412241&group_id=143636&atid=756076

-- 
Ian