Using Andy Farrior's method, I set up hobbit (version 4.2, allinone patch installed) to receive SNMP traps from some of our F5 devices. Works fine except for one of the devices. Checked all the logs and made sure that the various corollary programs are getting the traps correctly. Finally figured out that Hobbit (or, more specifically, hobbitboard. The trap.pl uses hobbitboard to find all the hosts that have the "trap" test defined. I ran the hobbitboard command myself and saw that it did not include the particular device in question) was not recognizing the trap test for that device. I've tried re-writing the bb-hosts file entry and moving things around (I'm also running Devmon against that device which sort of works, though the templates probably need some work) and moved the "trap" designation behind the devmon designation. No luck.
For what it is worth, on the info page for the device in question, "trap" does not show up in the status summary, though it does show up in the "Other tags" section. For the devices for which the trap works, "trap" shows up in both the status summary and the "Other tags" section.
Eric Jacobs