Unable to log into redundant switch_ssh: connect to host xx.xxx.x.15 port 22: Connection refused

[s k]

Hi,

My apologies if I'm unable to put the question right, I am a beginner and would not understand why Im not able to log into the redundant device. These are Cisco WS-6509-E running the WS-SUP720-3B

I am trying to do an IOS upgrade on 2 devices

Device A

Device B (Redundant to Device A)

These are Access level switches and Im using SecureCRT to log into the devices. I am successfully able to log in the Device A and back up the configs. However when trying to log in to Device B - it gives me the below error

ssh: connect to host xx.xxx.z.15 port 22: Connection refused

IP of device A is xx.xxx.z.14.

What can be done in this case? Thanks in Advance !

[Francesco Molino · Accepted solution]

Hi 

With the config it could be easier. 

This error can occur if :

- ssh is disabled 

- transport input is set to telnet on vty lines 

- missing the crypto key 

- acl on the switch itself or in between you and this switch (or firewall) filtering ssh access 

Thanks 

PS: Please don't forget to rate and mark as correct answer if this answered your question 

[Julio E. Moisa · Accepted solution]

Hi

If you cannot log in remotely you should go via console or request connect a PC to reach it remotely.

Now if you are using local credentials like: example:  username Cisco priv 15 password Cisco123

Assuming SSH is already configure, you need to verify the following:

no aaa new-model

crypto key generate rsa  (at least 1024)

ip ssh version 2

line vty 0 15
access-group <ACL> in    <--- if you are using ACL to manage the device, check if your IP address is allowed 
transport input ssh
login local

Hope it is useful

:-)