| 12.7 |  | SNMP |
| 12.7.2 |  | MIP support |

| MIB Overview A MIB is a collection of information that is organized hierarchically. MIBs are accessed using a network-management protocol such as SNMP. They are comprised composed of managed objects and are identified by OIDs. A managed object is one of any number of specific characteristics of a managed device. An example of a managed object is cpmCPUTotal5sec, which is the overall CPU busy percentage in the last five-second period. An object identifier uniquely identifies a managed object in the MIB hierarchy. The MIB hierarchy can be depicted as a tree with a nameless root, the levels of which are assigned by different organizations.

The top-level MIB object identifiers belong to different standards organizations, while lower-level object identifiers are allocated by associated organizations. Vendors can define private branches that include managed objects for their own products.

Supported MIBs
The PIX Security Appliance supports the following MIBs:

- PIX Security Appliance Software Versions 4.0 until 5.1: System and Interface groups of MIB-II (see RFC 1213) but not the AT, ICMP, TCP, UDP, EGP, transmission, IP, or SNMP groups CISCO-SYSLOG-MIB-V1SMI.my
- PIX Security Appliance Software Versions 5.1.X and later: Previous MIBs and CISCOMEMORY- POOL-MIB.my and the cfwSystem branch of the CISCOFIREWALL-MIB.my
- PIX Security Appliance Software Versions 5.2.X and later: Previous MIBs and the ipAddrTable of the IP group
- PIX Security Appliance Software Versions 6.0.X and later: Previous MIBs and modification of the MIB-II OID to identify PIX by model and enable CiscoView 5.2 support. The new OIDs are found in the CISCO-PRODUCTS-MIB. For example, the PIX 515 has the OID 1.3.6.1.4.1.9.1.390.
- PIX Security Appliance Software Versions 6.2.x and later: Previous MIBs and CISCOPROCESS- MIB-V1SMI.my

The Cisco Firewall MIB, Cisco Memory Pool MIB, and Cisco Process MIB provide the following PIX Security Appliance information through SNMP .

The supported section of the PROCESS MIB is the cpmCPUTotalTable branch of the cpmCPU branch of the ciscoProcessMIBObjects branch. There is no support for the ciscoProcessMIBNotifications branch, ciscoProcessMIBconformance branch, or the two tables, cpmProcessTable and cpmProcessExtTable. The two tables are in the cpmProcess branch of the ciscoProcessMIBObjects branch of the MIB.

An SNMP OID for the PIX Security Appliance displays the SNMP event traps sent from the PIX Security Appliance. The model-specific OIDs are found in the CISCO-PRODUCTS-MIB.

Additional information about SNMP and MIBs are available in the Command Reference. A Demonstration activity is available to reinforce the use of these commands.

| Media Activity Demonstration Activity: Configuring SNMP to the PIX Security Appliance In this activity, students will learn how to configure SNMP to the PIX Security Appliance.

| Web Links MIB tree and further information on SNMP http://www.cisco.com/univercd/cc/td/doc/ product/webscale/css/advcfggd/snmp.htm