2.17.2 Notes about setup (for Linux)
This subsection provides Linux-specific notes about setting up an SNMP agent. For setup notes common to all OSs, see 2.17 Notes about setup.
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Note about the default value of the SNMP reception port number
The default value of the SNMP reception port number of the SNMP agent is not 161/udp, but 22161/udp. Change the remote port of the manager to match this setting. For details about manager SNMP settings, see the manager documentation.
- Reason for changing the default value of the SNMP reception port number
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When you change the SNMP reception port number of the Linux native agent from 161/udp to another number, you also have to lower the security level of the entire OS. However, because the security level of the entire OS cannot be lowered, the SNMP request reception port number of the Linux native agent must use 161/udp. If the SNMP reception port number of the SNMP agent is also 161/udp, then the port number (161/udp) is used twice. As a result, the SNMP agent cannot be bound to 161/udp. This is why the SNMP agent uses 22161/udp as the SNMP reception port number.