If the device is unreacable via Discovery that means the LMS server is not able to communicate with it via SNMP. Have you verified that you can manually query this device using SNMP from the LMS server (i.e. using the SNMP Walk utility in Device Center)?
Honestly, I am new to LMS software. I have'nt use the snmp walk utility. Can you please give me the procedures on how to use snmp walk utility? I added most of the router and switches and remains only this firewall.
Go to Device Center and enter the IP of your ASA. Under the Tools section, you'll see an SNMP Walk tool. Launch it, and enter the ASA's community string. Use a starting OID of "system". You should get back a successful response of the system branch. If you get a timeout, then the LMS server is not able to poll the ASA (e.g. it is blocking SNMP access from the LMS server's IP).
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Introduction The purpose of this document is to demonstrate the Open
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