NMIS is a powerful network management system which is open source and free for a highly capable tool.
Setup SNMP Trap Daemon
NMIS 8.4.1 has included some Cisco and Generic MIBS and added the ability to view the SNMP traps in the NMIS logging tool.
First you will want to make sure your servers NET-SNMP install is setup appropriately. Refer to these install instructions:
SNMPD, Net-SNMP and collecting stats of the NMIS server itself
Next you will need to copy the options file to the right location and restart the daemon.
cp /usr/local/nmis8/install/snmptrapd.options /etc/sysconfig/snmptrapd cp /usr/local/nmis8/install/snmptrapd.conf /etc/snmp/snmptrapd.conf service snmptrapd restart
You can test the MIB resolution with this command
snmptranslate -m ALL -M /usr/local/nmis8/mibs/traps 1.3.6.1.4.1.9.9.43.1.1.6.1.5.34
Which should result in:
CISCO-CONFIG-MAN-MIB::ccmHistoryEventConfigDestination.34
Configure a Cisco Router to Send Traps
If the IP address of your NMIS server is 192.168.1.7 and you want to use the community string public, these are the commands you need to send traps.
snmp-server host 192.168.1.7 version 2c public
or to use SNMP v2c Informs
snmp-server host 192.168.1.7 informs version 2c public
To enable all traps
snmp-server enable traps
Add New SNMP MIBS for Trap Processing
If you are receiving SNMP traps from devices which are just numbers, then you will need to add the MIBS so that the SNMP trap daemon can decode them them for you. First you need to identify the required MIB files and any dependant MIB files and then copy those files to the directory /usr/local/nmis8/mibs/traps and restart the SNMP trap daemon.
service snmptrapd restart
You can test the decoding using the snmptranslate command, which was described in a previous section.