Changes

This chapter is a guide on configuring SNMP Trap listening service on Linux OS.

This chapter is a guide on configuring SNMP Trap listening service on Linux OS.

===Preconditions===

==Preconditions==

To configure Trap listening service these packages are required: ''' snmp ''', '''snmpd''', '''snmptt''', '''snmptrapd'''.

To configure Trap listening service these packages are required: ''' snmp ''', '''snmpd''', '''snmptt''', '''snmptrapd'''.

'''Important note:''' before continuing make sure that SNMP Trap package is configured. SNMP configuration example can be found here [[SNMP configuration example]].

'''Important note:''' before continuing make sure that SNMP Trap package is configured. SNMP configuration example can be found here [[SNMP configuration example]].

===Editing configuration files===

==Editing configuration files==

====Snmpd.conf====

===Snmpd.conf===

This is not required for Trap listening service, but with this configuration '''snmpget''' command will be able to establish connection without requiring port number in the command line.

This is not required for Trap listening service, but with this configuration '''snmpget''' command will be able to establish connection without requiring port number in the command line.

[[File:Networking device configurationexample traps with terminal snmpd config v1.png]]

[[File:Networking device configurationexample traps with terminal snmpd config v1.png]]

 

====Snmptrapd.conf====

===Snmptrapd.conf===

This is required to specify community you described in SNMP Trap package configuration, to describe Trap port and how to handle caught Trap messages.

This is required to specify community you described in SNMP Trap package configuration, to describe Trap port and how to handle caught Trap messages.

[[File:Networking device configurationexample traps with terminal snmptrapd config v1.png]]

[[File:Networking device configurationexample traps with terminal snmptrapd config v1.png]]

 

====Creating Trap listening service====

===Creating Trap listening service===

This is required for launching Trap listening service with extra configurations, we will use it to describe the log file, where all traps will be recorded.

This is required for launching Trap listening service with extra configurations, we will use it to describe the log file, where all traps will be recorded.

'''ExecStart=/usr/sbin/snmptrapd -Ln -f -Lf /var/log/snmptrapd.log'''

'''ExecStart=/usr/sbin/snmptrapd -Ln -f -Lf /var/log/snmptrapd.log'''

This configuration will write the log into ''' ''/var/log/'' ''' folder and into ''' ''snmptrapd.log'' ''' file.

This configuration will write the log into ''' ''/var/log/'' ''' folder and into ''' ''snmptrapd.log'' ''' file. You can change the log file directory and file name.