Comment 36 for bug 1254085

There is a problem with 'OpenSSH' client not connecting while 'Putty' client does work given the same network settings. This was my finding almost 3 years ago.

Given that another client does work - there is something OpenSSH Client can do to resolve the issue.

Ubuntu distributes OpenSSH client in it's core distribution. As such this is a valid issue with Ubuntu and should remain open until one of the following conditions are met:

1) The issue is fixed in OpenSSH client and connection succeeds as it does in Putty and Ubuntu releases a package that resolves it.

2) The OpenSSH package inserts a sane timeout on 'expecting SSH2_MSG_KEX_ECDH_REPLY' and issue's an error to the user instead of hanging for a connection, leaving a poor user experience. Inform the user that the software is not adequate in its ability tolerate uncertain MTU settings, and suggest a more robust client such as Putty.

3) Ubuntu removes OpenSSH client from its core distribution.