Can not open a terminal window from XMC to one device and not backing up this one device

[sparkytcc]

Hi All, 
I am successfully backing up multiple Extreme switches. However one switch will not backup. Says Auth failure in server.log when I turn on verbose for scripting.

When I manually test with the credentials I can log in fine using the SSH credentials. I can also log in fine to the switch over ssh with my credentials (both radius).  when I manually try a terminal when right click device it fails to connect. Log locally on switch reports successful though.

Ie, Login passed for user <blank> through ssh

From Log on XMC

auth methods: publickey, password,

authentication failure

[sparkytcc]

Thanks for the reply.

I can open the terminal for over a 100 other switches from the XMC. So thinking no need to test from linux XMC. 
Ssh keys is valid, thanks for that.

[FredrikB-NN2]

I would still verify an SSH from the Linux OS to this switch. Can XMC read the switch SNMP wise? Could it be a problem with the routing table in the switch (if the management network is routed between XMC and the switch)? Is the switch IP in the correct subnet? Do you run OSPF or anything fancy on the management VLAN or is it a plain L2 VLAN?

You said: "I can also log in fine to the switch over ssh".

Is that from another computer? Can you SSH to the switch from another switch?

[FredrikB-NN2]

Can you do a normal SSH from the XMC server to the switch, that is, via the OS on that server? It may be that SSH is disabled or the keys have been messed up (not uncommon). If this is a Linux server just SSH to it and SSH from that login to the switch. If Windows, RDP to it and try to connect to the switch using PuTTY or similar. Check this in the switch:

sw01.1 # show management

[Skip a lot of lines...]

SSH access : Enabled (Key valid, tcp port 22 vr all)

If the SSH key is not valid, you need to generate a new one.