Interop problem with IPSSH-6.6.0, CR/NL?

Damien Miller djm at mindrot.org
Fri Jan 6 11:35:22 EST 2012


On Thu, 5 Jan 2012, Christian Weisgerber wrote:

> Damien Miller:
> 
> > Could you send a "ssh -vvv" output?
> 
> $ ssh -vvv admin at sw2
...
> debug2: channel 0: request pty-req confirm 1
...
> debug2: PTY allocation request accepted on channel 0

So, this isn't like the Netscreen PTY bugs that we discussed here a couple
of months ago. My guess is that your switch is choking on something, but
it is impossible to tell what.

I'd suggest that you try fiddling with ttymodes.h and prune it to the
minimum set of modes that you can. If that works, then you can binary
search to see what is causing the far end to choke.

Do you have any idea what the last version of OpenSSH to interop correctly
with these devices was? Or has it always been broken? :)

-d


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