Knowledge Base > SNMP Support > Agent Mode on UNIX

Agent Mode on UNIX

Under UNIX, the AE SNMP Subagent can run as Masteragent or Subagent.

Specify the mode in the INI-file parameter role= (section [SNMP]).

Masteragent (Recommended)

Advantages:

There is no need to install Net-SNMP.
Improved performance
Improved error insulation

Disadvantages:

Only AE monitoring starts.
No other MIBs are available.
The variable SNMPCONFPATH must be set. It contains the directory with the file ucsnmp1.conf (e.g: "export SNMPCONFPATH=./")

You can specify the same parameters in the file ucsnmp1.conf as in the net-SNMP agent's configurationA set of constituent components that make up a system. This includes information on how the components are connected including the settings applied. file (snmpd.conf).

The AE SNMP Subagent uses the following parameters:

trapcommunity
trapsink
rocommunity
rwcommunity
master

An explanation of the individual parameters is available in the description of the snmp.conf provided by net-SNMP.

Example for the file ucsnmp1.conf:

trapsink host1 trapsink host2 rocommunity public master agentx

In Masteragent mode, no other Subagents can establish a connection to the SNMP Subagent.

Subagent

The AE SNMP Subagent cooperates with an existing Masteragent:

A Masteragent which is able to deal with AgentX must be started.
The standard communication medium is a local socket file which is stored in the directory /var/agentx/mastert. The Masteragent creates this file. The AE SNMP Subagent only requires the right to access it.
The configuration file snmpd.conf contains some settings:

Example for the file ucsnmp1.conf:

trapsink local
rocommunity public

HP-UX

The AE SNMP Subagent must operate on HP UX in Masteragent mode. The native Masteragent for the HP-UX system is EMANATE. The AE SNMP Subagent uses the naaagt interface to communicate to it. The naaagt interface serves as SNMP Proxy. It redirects SNMP queries to a different UDP port via a registered OID. By default, the naaagt uses port 8161. Thus, the AE SNMP Subagent uses a different port.

Further information about configuring the interface is provided in the naaagt documentation.