Testing Trap With Linux Operating System: Difference between revisions
Testing Trap With Linux Operating System (view source)
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===Loading MIB file=== | ===Loading MIB file=== | ||
MIB file will be used to translate OID codes to more readable format | MIB file will be used to translate OID codes to more readable format. | ||
If you dont have the MIB file download it from SNMP packge WebUI window [[SNMP configuration example#SNMP Configuration]] | |||
After downloading the MIB file, place it in ''' ''/usr/share/snmp/mib'' ''' directory, you can use this command: | |||
$ sudo cp Downloads\TLT-MIB.txt /usr/share/snmp/mibs/TLT-MIB.txt | |||
Now edit file ''' '' /etc/snmp/snmp.conf'' '''. Example of the command: | |||
$ sudo nano /etc/snmp/snmp.conf | |||
Find this line: | |||
'''mibs :''' | |||
and change it to: | |||
'''mibs +ALL''' | |||
to load all existing MIB files in ''/usr/share/snmp/mibs'' directory. | |||
[[File:Network device configurationexample traps with terminal snmp config v1.png]] | |||
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===Launching Trap listening service=== | |||
To launch SNMP Trap listening service use this command: | |||
$ sudo /etc/init.d/snmptrapd start | |||
[[File:Networking device configurationexample traps with terminal snmptarpd start v1.png]] | |||
To restart or launch it you can use this command: | |||
$ sudo /etc/init.d/snmptrapd restart | |||
[[File:Networking device configurationexample traps with terminal snmptarpd restart v1.png]] | |||
To stop the service use this command: | |||
$ sudo /etc/init.d/snmptrapd stop | |||
[[File:Networking device configurationexample traps with terminal snmptarpd stop v1.png]] | |||
To read service status use this command: | |||
$ sudo /etc/init.d/snmptrapd status | |||
[[File:Networking device configurationexample traps with terminal)snmptrapd status v1.png]] | |||
If SNMP manager caught any traps, connection information can be represented with service status. | |||
===Testing if SNMP Trap listening service works=== | |||
Firs make sure that SNMP Trap package has Trap rules configured in order to test if listening service works correctly. More information here [[SNMP configuration example#Trap Configuration]] | |||
If any Trap was triggered you can check if Trap message was caught and logged. Check service '''status''' to see if any connections were esablished. | |||
Open ''' ''/var/log/snmptrapd.log'' '''. If you specified different directory and file name, open it. Example commands: | |||
$ sudo cat /var/log/snmptrapd.log | |||
$ sudo more /var/log/snmptrapd.log | |||
$ sudo nano /var/log/snmptrapd.log | |||
snmptrapd.log file after triggering ''' ''trapDigitalRelayOutputStatus'' ''' by changing '''Digital relay output''' value in WebUI (Services -> Input/Output, Output tab -> ON/OFF tab using RUT955). | |||
[[File:Networking device configurationexample traps with terminal log file after catching trap v1.png]] | |||