Hello, we have an ACAS configuration with Security Center and Nessus scanner running on RHEL 5.10.
Our infrastructure consists of WS-6509, WS-3750X's, G's and some old E's.
We configured Nessus scanner with the proper Username/Password/Enable Password combinations.
At this time it will scan one 3750 switch but none of the other 130 devices.
If I attempt to ssh into a device from Nessus server it fails either a connection refusal from the device on port 22 or it doesn't like the cipher choices.
I checked the switch that it does access against the others and found ip ssh authentication-retries 4 was configured and some SNMP settings that don't exist in the switches that can't be scanned.
Anyone have this issue?
Check your access list to ensure the ACAS scanners are permitted.
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