Re: [GnomeMeeting-list] [Problem]: The commucation breaks each 20 seconds

[Damien Sandras <dsandras seconix com>]

Le dimanche 12 juin 2005 à 21:29 +0200, Davi Leal a écrit :
> > Something has changed, but I do not know what. Probably more information
> > from you is required to be able to debug the problem.
> 
> I can tell you that my modem and router is a 3Com OfficeConnect Remote 812, 
> and that all port exposed in the FAQ 
> http://www.gnomemeeting.org/index.php?rub=3&pos=0&faqpage=x213.html#AEN218 
> are forwarded to the local IP.
> 

Are you sure that port forwarding is really required? What's the STUN
result *without* port forwarding active? 


> The host has Debian GNU/Linux Sarge installed and updated.
> 
> # ifconfig
> eth0      Link encap:Ethernet  HWaddr 00:04:75:F0:52:AD  
>           inet addr:192.168.0.2  Bcast:192.168.0.255  Mask:255.255.255.0
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:207536 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:158353 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:455 txqueuelen:1000 
>           RX bytes:73744915 (70.3 MiB)  TX bytes:15523515 (14.8 MiB)
>           Interrupt:16 Base address:0xd000 
> 
> lo        Link encap:Local Loopback  
>           inet addr:127.0.0.1  Mask:255.0.0.0
>           UP LOOPBACK RUNNING  MTU:16436  Metric:1
>           RX packets:36606 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:36606 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:0 
>           RX bytes:11135451 (10.6 MiB)  TX bytes:11135451 (10.6 MiB)
> #
> 
> 
> Under these conditions, SJphone works. http://www.sjlabs.com/sjp.html
> 
> Under these conditions the Configuration Druid reports:
>     STUN test result: Blocked.
> 
> Let me know if you need further information.
> 
> Any hint is welcome.

SJPhone is not using the same port range as GnomeMeeting. If SJPhone
works with STUN, and GnomeMeeting doesn't, it could be because no port
forwarding is required. Notice that port forwarding is only required in
case of Symmetric NAT, which couldn't be the case of the 3Com.

You could also try another stun server, like stun1.vovida.org, but I
would suggest to stick with stun.voxgratia.org. Notice also, that there
is a known bug: if you click several times on the test button in a row,
then it will freeze the application.
-- 
 _      Damien Sandras
(o-     GnomeMeeting: http://www.gnomemeeting.org/
//\     FOSDEM 2005 : http://www.fosdem.org
v_/_    H.323 phone : callto:ils.seconix.com/dsandras seconix com