Collector not discovering some devices

[JSM92]

We have a customer with newly installed collector that is not picking up several switches.  We have verified the IP's are within the ranges we loaded and the SNMP community strings are correct.  Yesterday's discovery still did not find them. 

[jofrumki · Accepted solution]

Please also verify that the devices' ACLs are adjusted to accept the SNMP traffic from the CSPC. You can test this by using the snmpwalk from the CSPC's CLI.

[JSM92]

Thank you!  Seems like this fixed, will know for sure on Monday

[JSM92]

The customer was able to manually walk the devices from the collector to verify the collector could connect to them.

Does the collector skip devices that it failed to read before? Would think not.  The ACL was preventing the collector from reading snmp from the device, but that has been fixed.  None of them were picked up on yesterday's discovery. 

[jofrumki]

Keep us updated if anything else should come up.

[JSM92]

Guess you didn't see my reply to my own post?  None of the devices were discovered. 

[jofrumki]

You can confirm SNMP access to these devices by running an snmpwalk from the CLI (login to collectorlogin, then su to root)
Ex.
[root@localhost ~]# snmpwalk -v 2c -c community_string ip_address
[root@localhost ~]# snmpwalk -v 3 -u v3User -l AuthPriv -a SHA -A authPassword -x DES -X privPasword

If they are successful, please run a discovery with those IPs or IP ranges specified.