H.239 support in the H.323 helper?

H.239 support in the H.323 helper?

[Jozsef Kadlecsik]

Hi,

With the H.323 conntrack helper enabled on a machine running Gnugk, it 
cannot establish multiple channels for conferencing and presentation with 
a Polycom MGC MCU. The device wants to use H.239 and the helper cannot 
decode/interpret the protocol:

Sep 21 13:41:48 caladan kernel: nf_ct_h323: incomplete TPKT (fragmented?)

Could you consider to add H.239 support to the H.323 helper?

Best regards,
Jozsef
-
E-mail  : kadlec@blackhole.kfki.hu, kadlec@mail.kfki.hu
PGP key : http://www.kfki.hu/~kadlec/pgp_public_key.txt
Address : KFKI Research Institute for Particle and Nuclear Physics
          H-1525 Budapest 114, POB. 49, Hungary

Re: H.239 support in the H.323 helper?

[Pasi Kärkkäinen]

On Tue, Sep 22, 2009 at 11:44:45AM +0200, Jozsef Kadlecsik wrote:
> Hi,
> 
> With the H.323 conntrack helper enabled on a machine running Gnugk, it 
> cannot establish multiple channels for conferencing and presentation with 
> a Polycom MGC MCU. The device wants to use H.239 and the helper cannot 
> decode/interpret the protocol:
> 
> Sep 21 13:41:48 caladan kernel: nf_ct_h323: incomplete TPKT (fragmented?)
> 
> Could you consider to add H.239 support to the H.323 helper?
> 

Hello.

I don't know if anyone is working on adding H.239, but you could always
start working on it yourself. You seem to have the needed equipment to
test it :)

-- Pasi

Re: H.239 support in the H.323 helper?

[Tamas Csillag]

Pasi Kärkkäinen <pasik <at> iki.fi> writes:

> 
> On Tue, Sep 22, 2009 at 11:44:45AM +0200, Jozsef Kadlecsik wrote:
> > Hi,
> > 
> > With the H.323 conntrack helper enabled on a machine running Gnugk, it 
> > cannot establish multiple channels for conferencing and presentation with 
> > a Polycom MGC MCU. The device wants to use H.239 and the helper cannot 
> > decode/interpret the protocol:
> > 
> > Sep 21 13:41:48 caladan kernel: nf_ct_h323: incomplete TPKT (fragmented?)
> > 
> > Could you consider to add H.239 support to the H.323 helper?
> > 
> 
> Hello.
> 
> I don't know if anyone is working on adding H.239, but you could always
> start working on it yourself. You seem to have the needed equipment to
> test it :)
> 

Hi,

Was this ever implemented? Checked the 2.6.32 source, and didn't find any 
reference to H.239.
We are experiencing random dropped calls from a Polycom HDX8000, sitting behind 
a Vyatta, running 2.6.32, with the same syslog messages.
If needed, I can do some limited testing (both systems are in production, not 
dev...).

Regards,
Tamas

--

Tamas Csillag
systems administrator

Griffith College Dublin
South Circular Road
Dublin 8
Ireland

Phone:  +353 87 7373462
        +353  1 4163365
Email:  tamas.csillag@gcd.ie



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