13.2. The Software
The Net-SNMP is an excellent free package containing all you'll need to follow along in this chapter. Net-SNMP will provide you with commands (snmpget, snmpset, snmpwalk, snmptrap), an SNMP agent, and the standard MIB files. Normally, the commands and agent would be running on different systems, but for simplicity you'll be running both on the same system. If you have two systems available, you can perform the full installation on both systems; then you can run snmpget, for example, on one system, and talk to the agent on the other. If you use two systems, remember to change all instances of localhost or 127.0.0.1 in this chapter's code to the name or address of the system running the SNMP agent.
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