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Sidewinder G2 6.1.2 Administration Guide - Glossary of Technical ...

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Chapter 15: Configuring the SNMP Agent<br />

SNMP and <strong>Sidewinder</strong> <strong>G2</strong><br />

466<br />

standard MIB II objects, the Host Resources MIB (RFC1514), and the<br />

<strong>Sidewinder</strong> <strong>G2</strong>-specific MIB objects. MIBs are discussed in greater detail in<br />

“<strong>Sidewinder</strong> <strong>G2</strong> SNMP MIBs” on page 466.<br />

Note: The MIBs used for compiling the SNMP agent for the <strong>Sidewinder</strong> <strong>G2</strong> are<br />

located in /etc/sidewinder/snmp.<br />

If you need more information on SNMP, an excellent source is Managing<br />

Internetworks with SNMP by Mark A. Miller, P.E. (M&T Books).<br />

<strong>Sidewinder</strong> <strong>G2</strong> SNMP traps<br />

An SNMP trap is an alert message that is sent as an unsolicited transmission<br />

<strong>of</strong> information from a managed node (router, <strong>Sidewinder</strong> <strong>G2</strong>, etc.) to a<br />

management station. Most management stations can be configured to either:<br />

(1) display received traps in a pop-up window, or (2) automatically dial a phone<br />

number; such as a pager number.<br />

The <strong>Sidewinder</strong> <strong>G2</strong> SNMP agent supports a basic trap, called the ColdStart<br />

trap, that is sent whenever <strong>Sidewinder</strong> <strong>G2</strong>’s SNMP agent is enabled. It is also<br />

sent if the Admin Console modifies the SNMP configuration file<br />

(/etc/sidewinder/snmp/snmpd.conf). You cannot disable the ColdStart trap.<br />

You also have the option to configure <strong>Sidewinder</strong> <strong>G2</strong> to send audit alert SNMP<br />

traps when an audit event triggers a response in <strong>Sidewinder</strong> <strong>G2</strong>. Additional<br />

information about requesting and configuring SNMP traps is available in<br />

“<strong>Sidewinder</strong> <strong>G2</strong> SNMP traps” on page 579.<br />

<strong>Sidewinder</strong> <strong>G2</strong> SNMP MIBs<br />

Management Information Bases (MIBs) are associated with both the<br />

management station and the SNMP agent in the <strong>Sidewinder</strong> <strong>G2</strong>. The<br />

<strong>Sidewinder</strong> <strong>G2</strong> SNMP agent supports two MIB structures (as well as a Host<br />

MIB).<br />

• mib2—This is a standard SNMP MIB as defined in RFC-1213.<br />

• sccMibSw—This is a <strong>Sidewinder</strong> <strong>G2</strong>-specific MIB provided by Secure<br />

Computing Corporation. Figure 196 shows the location <strong>of</strong> the <strong>Sidewinder</strong><br />

<strong>G2</strong> MIB structures within the SNMP root hierarchy.<br />

Note: MIBs that are used to compile the SNMP agent for the <strong>Sidewinder</strong> <strong>G2</strong> are<br />

located in /etc/sidewinder/snmp.<br />

All individual objects (parameters and variables) managed by an SNMP<br />

management station are part <strong>of</strong> an object group within an MIB. For example,<br />

the swProxy group stores information about currently-defined proxies on the<br />

system. The information might include the proxy name and the current status<br />

<strong>of</strong> the proxy.

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