[mrtg] Monitoring DoD interfaces

[Don Harvie]

Hi All,

I'm monitoring a dial on demand PPP interface under linux. Everything is
OK 'cept when the link is down. Since I run mrtg from cron I get the
error output mailed to root (or an alias) by crond.  I've scanned the
MRTG reference looking to see if there is a way I can get it to ignore
the PPP interface when the MIB entry for if3 isn't there. But nothing
looks like it's going to do the job. FWIW PPPD isn't running all the
time since it's a 'dial out only' interface.

I don't particularly want to direct all of the mrtg output to /dev/null
either since there may be something occurring somewhere else that I want
to see mailed to me.

I could also set up a new CFG file for this I/F only and when it's run
by cron just /dev/null the stdout. (This is looking like the next best
option).

Has anyone encountered something similar and come up with a more elegant
solution?

Any and all ideas gratefully received.
 
-- 
Thanks,
Don Harvie				  Ph +61 2 9882 5963
Network & Firewall Engineer,		  Fax +61 2 9882 5993
Telstra Enterprise Services Pty Limited	  Mob +61 417 411 427
Level 3, 112 Talavera Rd		  Email Don_Harvie at EnterpriseServices.com.au
North Ryde NSW 2113		                don.harvie at usa.net  (personal)
Australia

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