1-18
Cisco ASA Series CLI Configuration Guide
Chapter 1 Configuring SNMP
Configuring SNMP
• The ENTITY-MIB is not available in the non-admin context. Use the IF-MIB instead to perform
queries in the non-admin context.
• Does not support SNMP Version 3 for the AIP SSM or AIP SSC.
• Does not support SNMP debugging.
• Does not support retireval of ARP information.
• Does not support SNMP SET commands.
• When using NET-SNMP Version 5.4.2.1, only supports the encryption algorithm version of
AES128. Does not support the encryption algorithm versions of AES256 or AES192.
• Changes to the existing configuration are rejected if the result places the SNMP feature in an
inconsistent state.
• For SNMP Version 3, configuration must occur in the following order: group, user, host.
• Before a group is deleted, you must ensure that all users associated with that group are deleted.
• Before a user is deleted, you must ensure that no hosts are configured that are associated with that
username.
• If users have been configured to belong to a particular group with a certain security model, and if
the security level of that group is changed, you must do the following in this sequence:
–
Remove the users from that group.
–
Change the group security level.
–
Add users that belong to the new group.
• The creation of custom views to restrict user access to a subset of MIB objects is not supported.
• All requests and traps are available in the default Read/Notify View only.
• The connection-limit-reached trap is generated in the admin context. To generate this trap. you must
have at least one snmp-server host configured in the user context in which the connection limit has
been reached.
• You cannot query for the chassis temperature for the ASA 5585 SSP-40 (NPE).
Configuring SNMP
This section describes how to configure SNMP and includes the following topics:
• Enabling SNMP, page 1-18
• Configuring SNMP Traps, page 1-20
• Configuring a CPU Usage Threshold, page 1-21
• Configuring a Physical Interface Threshold, page 1-21
• Using SNMP Version 1 or 2c, page 1-22
• Using SNMP Version 3, page 1-23
Enabling SNMP
The SNMP agent that runs on the ASA performs two functions:
• Replies to SNMP requests from NMSs.