How to Troubleshoot Telnet or SSH

This article will assist you with troubleshooting discover using telnet or ssh.

• Can you ping the device from the server you are having difficulty discovering?
• Can you ping the server from the device?

Note: If you can ping the devices,  or may have discovered the device, but ping still does not work from within the application -  Check to see if the device has the ICMP management interface. Managed Resources > right-click > Edit > click on Management Interface Tab. If the device is missing ICMP management, simply add the interface and resync the device.

• Is your system permitted access to the device (on the Access Control List)
• Are firewalls blocking access to the device(s)?
• Is any other software on the application server host causing a port conflict?
• Is SNMP is configured on the target device and read/trap, write community strings?
• Is SNMP correctly set up? see {Troubleshooting SNMP}
• Is Telnet or SSH configured on the target device and can you Telnet / SSH to the device through a command-line shell or an application like puTTY?
• Are authentications created in the Authentication portlet with protocols and passwords set correctly, with adequate timeout and retries configured for your network’s latency?
• Are Discovery Profiles using the created authentications?
• Did the device discover with Telnet or SSH and SNMP s successfully?
  
   

Verify Device Management Interface