ICX Switch is Disconnected

[Cavan]

After a power outage, my ICX switch was disconnected. I have internet access to some devices but not others. When going on the unleashed dashboard, under the switches it states “failed to ping ICX … Suggest checking the network”  I have confirmed that the IP address is correct and that I have internet service from my isp. I have followed the steps to access the control line of the switch. I’ve tried this two different ways. The first way through my ruckus access points - I receive an error when connecting via telnet that states the host is down. The second way is to telnet through my router. This approach I receive a connection refused error. I have tried everything I can find in the forms but have not found anything similar to this. Please help!

I only have a MacBook Pro 2020.

[Jayavidhya · Accepted solution]

Hi @Cavan 

Greetings of the day,

Thanks for your response,

For further troubleshooting steps we need to verify the switch configurations. To fix this issue, we must identify the ‘current’ IP address assigned by your local router to the switch ICX-7150-C12P.

I will leave you a guide on how to perform an IP scanner on your local network to identify the switch IP address very easily. 

How to find my Ruckus “Devices IP address” using free applications:

https://community.ruckuswireless.com/t5/RUCKUS-Support-for-Lennar-Homes/How-to-find-my-Ruckus-Device...

2. Once we identify the IP address of the switch proceed to access remotely to the device “Command Line” 

How to remotely access to 'ICX 7150-C12P' or 'access points' "Network devices":

https://community.ruckuswireless.com/t5/RUCKUS-Support-for-Lennar-Homes/How-to-remotely-access-to-IC...

If you can access the Command line should look like this:

ICX7150-C12 Router> OR

ICX7150-C12 Switch>

Please enter the below commands once you log in to CLI and share the output.

Note: Hit Enter to accept each command 

enable 

show version

show flash

Please let us know if you have any queries in this regard.

Best regards,

Jayavidhya

Lennar Home Community

[Cavan]

Thank you for this. I have already identified my switch IP. My issue occurs when trying to access the switches command line. When accessing the switch via my Mac terminal (following the instructions above) wirelessly through my router, I receive an error:

telnet: connect to address xxx.xxx.x.xx: connection refused

When attempting to access the switch wirelessly through the ruckus access points via my Mac terminal I receive this error:

telnet: connect to address xxx.xxx.x.xx: operation timed out

When accessing via ssh I receive these errors

via wireless router:

Unable to negotiate with xxx.xxx.x.xx port 22: no matching key exchange method found. Their offer: diffie-hellman-group14-sha1,diffie-hellman-group1-sha1

via ruckus access points:
ssh: connection to host xxx.xxx.x.xx port 22: host is down

Finally, when trying to connect via ssh-keygen I receive these error:

Cannot stat /Users/xxxxxxxx/.ssh/known_hosts: No such file or directory

i can confirm that my switches ip address is correct as I’m able to access it via web browser.

[Jayavidhya]

Hi @Cavan 

Thanks for your response,

Could you please share the screenshot of the error you are getting while accessing the switch via telnet and SSH.

Also as you can access the switch from the web browser via IP address please share the screenshot of the status of the switch.

Here is where you can upload the image/photo :

you can also drag it to the chat.

Please let us know if you have any queries in this regard.

Best regards,

Jayavidhya

Lennar Home Community

[Cavan]

Thank you Jayavidhya.

After further digging, I found that my switch had telnet connection disabled. After enabling I was able to follow the steps to fix the 'Routing Code' issue. All is fixed, and the switch is back online.

For anyone reading this thread, I had to enable the telnet setting on my switch via the webbrowser access. First type in your switch IP address into the web browser. The enable telnet is located under general system configuration -> management -> Telnet -> Enable

I appreciate your response and assistance in resolving this issue.