Specifications
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Cisco NAC Appliance - Clean Access Manager Configuration Guide
OL-28003-01
Chapter 3 Switch Management: Configuring Out-of-Band Deployment
Troubleshooting SNMP
• Make sure the switch profile matches the switch type under OOB Management > Devices >
Devices > New
For example, if the switch is a 3750, but you specified it a 2950 switch profile when adding the
switch, when the CAM receives the SNMP linkup trap from the switch for the client that is
connecting (with the MAC address specified in the Agent error message), the CAM will attempt to
contact that switch to find that MAC address. If the wrong profile is specified for the switch, or the
switch is not yet configured in the CAM, the CAM will not be able to contact that switch. Changing
the switch profile to 3750 will resolve this issue.
Troubleshooting SNMP
This section describes how to troubleshoot the common errors that occur in SNMP operations.
Device IP Not Reachable, page 3-72
Fetching SysObjectID, page 3-72
SNMP Request Timed Out, page 3-72
Unknown User Name, page 3-73
Wrong Digest, page 3-73
Authorization Error, page 3-73
Unsupported Security Level, page 3-73
No Access, page 3-73
OOB Client MAC/IP Not Found, page 3-74
Message Not Within Time Window, page 3-74
Additional Information, page 3-74
Device IP Not Reachable
Error: The device IP is not reachable. Please check the device IP and try again.
This error may occur while adding a switch to CAM. This happens when the switch IP is not reachable
from CAM. Check the network connectivity between the CAM and the switch.
Fetching SysObjectID
Error fetching the sysobjectid of the device <switch-ip-address>. Please check the SNMP settings on the device.
They should match the SNMP settings defined in the device profile.
This happens when the SNMP read settings on the device do not match with the settings configured in
the CAM under OOB Management > Profiles > Device.
SNMP Request Timed Out
Error: SNMP request timed out [1.3.6.1.4.1.9.9.215.1.1.5.0]
CAM logs contain the error as shown in the following example: