Bad packet length rarely but still too often

Taylor, Bill bill.taylor at
Fri Feb 15 11:03:31 EST 2002

The client is the 2.1.1 code which I ported and the server behaves the same
any recent server 2.9 or newer. I am not saying that it is not in a change I
in our port. It could be there but sftp and scp and most ssh2 sessions work.

I do not know if there is a timing glitch in my windows code or something
long since fixed in the base code. We do not run a sshd on our client
systems but
generate multiple ssh sessions to hosts as needed. 

-----Original Message-----
From: Damien Miller [mailto:djm at]
Sent: Thursday, February 14, 2002 5:40 PM
To: Taylor, Bill
Cc: openssh-unix-dev at
Subject: Re: Bad packet length rarely but still too often

On Thu, 14 Feb 2002, Taylor, Bill wrote:

> Hi,
> Just got on this group and wonder if anyone can help.
> I ported Openssh-2.1.1p2 to windows to use with our emulation
> software. Sometimes via ssh 2 I get a bad packet length  when doing
> repeated keystrokes(Sit in vi and append then hold down a key for a bit).
> For the most part it works but I suspect the ported code base had flaws
> that can not be fixed without porting a newer codebase....

You should update anyway, 2.1.1 had a widely exploited remote security 

> Tell me it ain't so..... :-)
> I have 2.9.9 and 3.0.2 on a sun and two different NetBSD machines and it
> does it occasionally on them all.

What are the versions on the client and server when it fails?

I have never seen the issue and I can't replicate it with 3.0.2 using your 
above recipe.


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