openssh unix dev - Feb 2008 - Problems connecting with SSH2

Hello,

I've been using OpenSSH 3.6.1p2 for quite some time at work. We have a
firewall, and I had no problems connecting to external machines.

Today my machine was updated to version 4.1p1 and it has a problem.  
When I try to make an SSH2 connection to an external machine, 
everything seems to work right up to the very end:

  debug1: Authentication succeeded (publickey)
  debug1: channel 0: new [client-session]
  debug1: Entering interactive session.
  Received disconnect from 192.74.137.71: 2: Invalid ssh2 packet type: 192

I did some investigation and see that an "invalid packet check" was
added to
packet.c a few years ago, sometime between versions 3.6 and 3.9. But I have no
idea why this now causing problems or how to diagnose it.

Can anyone help me understand what this means and how to fix it?


Thanks.

Hi,

On Sat, Feb 09, 2008 at 10:54:15AM -0500, joes at theworld.com
wrote:
> Today my machine was updated to version 4.1p1 and it has a problem.
> When I try to make an SSH2 connection to an external machine,
> everything seems to work right up to the very end:
> 
>   Received disconnect from 192.74.137.71: 2: Invalid ssh2 packet type: 192
This is a local packet type introduced by the remote sshd for some
private use. (Like 192.168.x.y IP addresses.)

OpenSSH doesn't like these. Maybe it should simply ignore packet
types between SSH2_MSG_LOCAL_MIN and SSH2_MSG_LOCAL_MAX, rather
than disconnect?


//Peter