Re: [Ekiga-list] Ekiga.net account with Android 2.3.4 native SIP-client

[Bart Vandewoestyne <Bart Vandewoestyne telenet be>]

On Thu, May 19, 2011 at 09:50:08AM +0200, Bart Vandewoestyne wrote:
>
> OK, so if I get things right, there are two possible reasons for
> me not being able to register with ekiga.net with the native
> Android 2.3.4 SIP client, namely:
> 
> 1) it is because the native Android 2.3.4 SIP client does not
> support a STUN server yet.
> 
> 2) it is a problem with the ekiga.net server configuration.
> 
> I would be glad to help out here, but I'm not really sure how I
> can help.  My educated guess is that I should somehow be able to
> grab the SIP messages from and to my Android phone, but I have no
> idea how I can do this.  I have some basic familiarity with
> wireshark on Linux, but I have never done packet sniffing on an
> Android phone.
> 
> If somebody knows, please let me know how I can get to the real
> SIP-traffic, so we can diagnose this problem more in depth.

OK.  I've played a bit around with tcpdump on my dd-wrt Asus
RT-N16 router and this is what I did:

* turned off my Android phone
* issued the following command:
    root@asus:~# tcpdump -i eth1 host 192.168.1.138 -w sip_capture.pcap
* turned on my Android phone and played a bit around
* turned off my android phone
* CTRL+C the tcpdump command

The output (to be visualised with e.g. wireshark) is here:

http://www.kuleuven-kortrijk.be/~bartv/sip_capture.pcap

All I can see is that the following is happening:

1) an UDP packet is being sent to ekiga.net
2) ekiga.net replies with a SIP message 606 Not Acceptable

I cannot judge why sending of 1) results in a 606 Acceptable... I
hope more experienced people can tell me what's going wrong here:
is the problem on my side (not having STUN support) or is the
problem on the ekiga.net server side?

Kind regards,
Bart

-- 
	"Share what you know.  Learn what you don't."