Hi,

I'm not sure if this a configuration issue or could this be a general
problem with the 'Diffie-Hellman Group Exchange Request' not being
processed properly by OpenBSD.

Problem: OpenBSD SSH server isn't responding to the 'Diffie-Hellman Group
Exchange Request' with 'Diffie-Hellman Group Exchange Group'. Server is
sending a FIN ACK instead.

Same key exchange worked when connecting with the same client and client
software, same network, to a commercial product based on FreeBSD
(Juniper JUNOS). SSH server then responds with 'Diffie-Hellman Group
Exchange Group' which means keys can be exchanged and connection can be
established, data transmited, all fine. However, client and client
software tested and it works, but again not with OpenBSD as server. All
ok from the client site.

Client Software: Sshfs Manager 0.0.1.5 (Windows 7 Enterprise)
Server: OpenBSD 5.9

Packet capture of issue attached where OpenBSD is acting as the SSH
server.
Server IP 10.10.1.111
Client IP 10.10.1.166

I've also attached a packet capture where everything is working but no
OpenBSD involved (see packet number 12), for comparison.
Server IP 10.10.1.210
Client IP 10.10.1.199 The packet captures are pretty small, so please
have a look. However, this is not about getting something working on a
Windows machine! ;) Answers, comments, ideas much apprechiated, Dennis

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