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3. Troubleshooting Functional Failures in Operation
110
3.14 SNMP Communication Failure
3.14.1 MIBs Cannot Be Obtained from SNMP Manager
Confirm that the configuration has been set correctly.
When using SNMPv1 or SNMPv2C
Execute the show access-list command to confirm that the IP address of the SNMP manager has been
registered on the access list in the configuration. Execute the show snmp-server command to confirm that the
community name and access list have been registered correctly.
If they are not registered, execute configuration command snmp-server community to set up the information
on the SNMP manager.
(config)# show access-list
access-list enable
access-list 1 permit ip 20.1.1.1 0.0.0.255
!
(config)# show snmp-server
snmp-server community "event-monitor" ro 1
!
(config)#
When using SNMPv3
Execute the show snmp-server command to confirm that the information on the SNMP manager has been
registered in the configuration for this system. If it is not correctly registered, execute the configuration command
below to set up the information on the SNMP manager.
• snmp-server engineID local
• snmp-server view
• snmp-server user
• snmp-server group
(config)# show snmp-server
snmp-server engineID local "engine-ID"
snmp-server group "v3group" v3 priv read "view1" write "view1"
snmp-server user "v3user" "v3group" v3 auth md5 "abc*_1234" priv des "xyz/
+6789"
snmp-server view "view1" 1.3.6.1.2.1.1 included
!
(config)#
3.14.2 Traps Cannot Be Received by SNMP Manager
Confirm that the configuration has been set correctly.
When using SNMPv1 or SNMPv2C
Execute configuration command show snmp-server to confirm that the information on the SNMP manager
and trap has been registered in the configuration for this system.
If it is not registered, execute configuration command snmp-server host to set up the information on the
SNMP manager and trap.
(config)# show snmp-server
snmp-server host 20.1.1.1 traps "event-monitor" snmp
!
(config)#