Cant SSH2 to Extreme switches via Ubuntu

[Marvell_Kay]

We recently enable SSH2 in our environment. I am able to SSH to Cisco switches without any issue but can not to any Extreme switch. I can login to them fine via teraterm/secureCRT but not via Ubuntu.

I have a Ubuntu 14.04 machine. Here is what I am getting:

ssh admin@extreme_switch.com
ssh_exchange_identification: read: Connection reset by peer

With -v for more info:

ssh -v admin@extreme_switch.com
OpenSSH_6.6.1, OpenSSL 1.0.1f 6 Jan 2014
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug1: Connecting to extreme_switch.com [10.10.0.99] port 22.
debug1: Connection established.
debug1: identity file /home/admin1/.ssh/id_rsa type -1
debug1: identity file /home/admin1/.ssh/id_rsa-cert type -1
debug1: identity file /home/admin1/.ssh/id_dsa type -1
debug1: identity file /home/admin1/.ssh/id_dsa-cert type -1
debug1: identity file /home/admin1/.ssh/id_ecdsa type -1
debug1: identity file /home/admin1/.ssh/id_ecdsa-cert type -1
debug1: identity file /home/admin1/.ssh/id_ed25519 type -1
debug1: identity file /home/admin1/.ssh/id_ed25519-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_6.6.1p1 Ubuntu-2ubuntu2.8
ssh_exchange_identification: read: Connection reset by peer

Any idea why I can not login to Extremes?

Thanks
Zohaib

[Marvell_Kay]

We have different versions depending on model. Here are some and none are working:

8810/x8 - bd8800-15.7.2.9-ssh.xmod v1572b9
x770 - summitX-15.7.2.9-ssh.xmod v1572b9
x870 - onie-22.2.1.5-patch1-4-debug.xmod 22.2.1.5-patch1-4

[Marvell_Kay]

Here is a snippet of "sh man":

SSH access : Enabled (Key valid, tcp port 22 vr VR-Mgmt)
: Secure-Mode : Off
: Access Profile : 25 Dynamic rules configured
SSH2 idle time : 60 minutes

SSH is enabled as I can SSH to all devices via SecureCRT

[davidj_cogliane]

If you run {show man} is ssh enabled?

If not you can
{enable ssh2}

[davidj_cogliane]

What version of code are you running?
Is the ssh xmod installed if you are running 15.x or lower?