Installation guide

SNMP Access Problems
6-10
Authentication Failure TRAP Messages Reported
Solution
If an NMS is receiving authentication failure TRAP messages, the problem is that a
network management station (NMS) is illegally trying to access the access server.
Verify the following:
• If you are using gateways, configure the gateways between your network and the public
network to filter SNMP messages. This will prevent an NMS from accessing the access
server.
• Verify that each NMS that is supposed to access the access server knows the
community name.
• Verify that every community name with an associated Internet address has the correct
Internet address.
• If the access server is properly configured, locate the offending NMS.