How do I receive traps and notifications?
Handling incoming traps is the job of a "notification receiver".
The Net-SNMP suite include the tool
'snmptrapd' to act in this role.
This can log traps to a file or via the syslog mechanism, forward them
to another notification receiver and/or invoke a specified command
whenever a particular notification is received.
Logging notifications would be done by starting
snmptrapd -Ls 7 (log to 'LOCAL7') (log to syslog using 'LOCAL7')
snmptrapd -f -Lo (log to standard output)
Invoking a command to process a received notification uses one or
traphandle' directives in the configuration file '
A typical configuration might look something like:
traphandle .220.127.116.11.18.104.22.168.1 /path/to/page_me up traphandle .22.214.171.124.4.1.2021.251.1 /path/to/page_me up traphandle .126.96.36.199.4.1.2021.251.2 /path/to/page_me down traphandle default /path/to/log_it
where 'page_me' and 'log_it' are the command to be run.
Forwarding notifications to another receiver would be done using
forward .188.8.131.52.4.1.8072.4.0.3 10.0.0.1 forward default 10.0.0.2
There's a tutorial with more details on the web site at the snmptrap tutorial
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