Bug#296811: ssh hangning caused by buggy ADSL modem firmware here

2006-05-08 Thread Justin Pryzby
On Sat, May 06, 2006 at 02:06:18PM +0200, V??clav ??milauer wrote:
 I resolved the problem here, buggy firmware is to be blamed: every
 packet having the flag ToS!=0 is silently discarded.
 
 More details: http://www.thp.uni-duisburg.de/~fred/DSL-G664T.html and
 http://www.magwag.plus.com/jim/tips-300t.html. 
 
 The end of http://www.abclinuxu.cz/hardware/show/112501 quotes the reply
 from dlink support (copy and paste the relevant part):
 
  It is correct that SSH passthrough don't work with DSL-xxxT devices when
  they are running with PPPoE and with Linux or MacOS SSH client. With
  Windows SSH client, e.g. PUTTY, the SSH passthrough works fine. Only if
  the devices work as an ordinary DSL modem in Bridge mode it works with
 Linux or MacOS SSH, because in this mode the DSL-362T is fully
  transparent.
 
  We already reported this behavior to teh development a long time ago,
  but it seems to be a chipset limitation, the colleagues in the
  development department can not fix it. Sorry we don't have a solution
  for this. 
 
 The box is running Linux and netfilter mangling could do the trick on
 the router; but mangling table is not compiled into the kernel in my
 specific case (dlink dsl-g664t). So I have to mangle when packets leave
 the client.
Would you mind contacting the other people who wrote messages to the
bug log, and asking if they can confirm that their problems have the
same cause you report?

Thanks
Justin


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Bug#296811: ssh hangning caused by buggy ADSL modem firmware here

2006-05-06 Thread Václav Šmilauer
I resolved the problem here, buggy firmware is to be blamed: every
packet having the flag ToS!=0 is silently discarded.

More details: http://www.thp.uni-duisburg.de/~fred/DSL-G664T.html and
http://www.magwag.plus.com/jim/tips-300t.html. 

The end of http://www.abclinuxu.cz/hardware/show/112501 quotes the reply
from dlink support (copy and paste the relevant part):

 It is correct that SSH passthrough don't work with DSL-xxxT devices when
 they are running with PPPoE and with Linux or MacOS SSH client. With
 Windows SSH client, e.g. PUTTY, the SSH passthrough works fine. Only if
 the devices work as an ordinary DSL modem in Bridge mode it works with
Linux or MacOS SSH, because in this mode the DSL-362T is fully
 transparent.

 We already reported this behavior to teh development a long time ago,
 but it seems to be a chipset limitation, the colleagues in the
 development department can not fix it. Sorry we don't have a solution
 for this. 

The box is running Linux and netfilter mangling could do the trick on
the router; but mangling table is not compiled into the kernel in my
specific case (dlink dsl-g664t). So I have to mangle when packets leave
the client.

Regards,

Vaclav Smilauer


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