Snmp Trap, important pls

[illusion_rox]

Hi all, i have currently setup orion in my network, most of our routers are 1841 with this ios :c1841-advsecurityk9-mz.124-3g.bin | now i want a trap to be generated and send to orion when a link ( usually tunnel interface ) goes down, what configuration do i need to do in my router to achieve this, i will highly appreciate and grateful if some can tell me a working configuration, though i know that i need to find ifindex myself but what are the other configuration needed to be done on the router !!

Thanks in advance

[Collin Clark]

snmp-server enable traps snmp linkdown

will enable the sending of a trap when a link goes down.

Some other commands you may need:

snmp-server ifindex persist

snmp-server trap-source Loopback0

http://www.cisco.com/warp/public/477/SNMP/snmp_traps.html

HTH

[illusion_rox]

Dear Clark, dont we need to define OID ? how will i know which trap to catch on orion ( my NMS ), if you or some1 else has ever configured trap in orion or any NMS kindly highlight me the procedure of defining traps in a NMS !, also kindly tell me do i need to define the OID ??

Thanks

[dbroder]

OIDs are only used when using SNMP to 'query' a device (a SNMP GET).

These SNMP GETs are scheduled, interactive and generally user-initiated.

SNMP Traps are not scheduled and are generated 'when' something happens. They are generated by whatever system (your router) and sent to a pre-determined destination (your Orion NMS).

Both (GETs and TRAPs) are both functions of SNMP, but they are independant, separate parts of the overall SNMP system. Both have their roles (TRAPs for 'alerts' and GETs for 'questions'). OIDs are only needed when questions are asked.

HTH

Darren.

[Collin Clark]

Darren is correct. If you want to create a trap in Orion, it's pretty easy. Take a look at the log when an interface goes down and base your trap alert off of that.

[illusion_rox]

Thanks Darren and Clark, it surely cleared a bit of my confusion but i am still not getting how to match snmp conditions in orion, is it possible that you send me a snapshot of how can we do it simply ??

I will be thankful

Thanks in advance

[Collin Clark]

Check out SW forum, it's pretty helpful.

http://thwack.com/

And a search for Trap

http://thwack.com/search/SearchResults.aspx?q=trap&o=Relevance

[dbroder]

Sorry, I don't use Orion... can't help you with that app.

How have you made on?

Darren.