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ACAS Nessus scans of Cisco devices

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?

 

ej

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Re: ACAS Nessus scans of Cisco devices

Check your access list to ensure the ACAS scanners are permitted.