Dropbear SSH integrity error

Laurent Bercot ska-dietlibc at skarnet.org
Thu Nov 12 18:17:06 AWST 2015


On 12/11/2015 10:28, Zbynek Michl wrote:
> # ssh demo at demo.mt.lv
> ssh: Connection to demo at demo.mt.lv:22 exited: Integrity error (bad
> packet size -22146333)

  Hi Zbynek,

  I had the same problem earlier this year with GitHub: git over ssh
worked with an OpenSSH client, but not with a dropbear client.
I reported it to GitHub; I didn't get any answer, but two weeks or
so later, they fixed the problem.

  I suspect this has to do with some sshd server that is not compatible
with a dropbear client - I'm inclined to think that the server makes
assumptions about unspecified protocol details and those assumptions
are false with dbclient. Or the other way around.

  Do you know what sshd server RouterOS uses? I can't tell from
demo at demo.mt.lv because they don't provide a shell :)

-- 
  Laurent



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