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Cisco ASA 5500 Series Configuration Guide using ASDM
Chapter 78 Configuring SNMP
Configuring SNMP
• 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.
• The value returned for ifNumber will be larger than the number of interfaces that you can query
through SNMP, because ifNumber includes hidden internal interfaces that are not viewable.
• You cannot query for the chassis temperature for the ASA 5585 SSP-40 (NPE).
• If the NMS cannot successfully request objects or is not correctly handling incoming traps from the
ASA, performing a packet capture is the most useful method for determining the problem. Choose
Wizards > Packet Capture Wizard, and follow the on-screen instructions.
Configuring SNMP
This section describes how to configure SNMP and includes the following topics:
• Enabling SNMP, page 78-6
• Configuring an SNMP Management Station, page 78-6
• Configuring SNMP Traps, page 78-7
• Using SNMP Version 1 or 2c, page 78-7
• Using SNMP Version 3, page 78-8