[c-nsp] How to monitor ipsec tunnel

[Andy Saykao]

Hi All,
 
We've got an IPSEC tunnel configured with another provider for the
exchange of some sensitive data and I wanted to know if there was a way
to monitor the IPSEC tunnel to ensure it was up. 
 
We're using a Cisco 3640 running 12.2(46a). 
 
I've checked the mibs for this hardware platform and IOS from the Cisco
IOS MIB Locator but can't really find any mibs to help me monitor the
status of the tunnel.
 
http://www.cisco.com/public/sw-center/netmgmt/cmtk/mibs.shtml
 
core#sh crypto isakmp sa
dst             src             state           conn-id    slot
203.17.98.x     203.41.142.x    QM_IDLE               1       0
 
We are trying to monitor the IPSEC tunnel using nagios.
 
Cheers.
 
Andy

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