CCA Network Discovery using SNMP

Document ID : KB000122911
Last Modified Date : 12/12/2018
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You may encounter a CCA-ND-8062: Exception -; nested exception is: Connection refused within attempting to discover a router (or a server) using SNMP in the credential vault

Alternatively, setting up a Network Discovery Gateway (NDG) scan using SNMP in general
The NDG Scan Policy selected should be one of the "ARP" policies selected; regardless of you setting up the credential vault for SNMP, the correct scan type must be selected 

Within that NDG Scan Policy, you must also setup the Gateway IP by modifying that policy --> Discovery Engine --> Gateway IP Address 
Additional Information:
Please note: With the "server relationship", when attempting to discover a single router as it will attempt to connect to all machines hooked to that router (and if it is another router, it will spawn from there). If that is what you want, fine, just know it will add many servers to CCA; if not, select the scan policy without server relations