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Date: Thu, 06 Jul 2006 10:32:11 -0500
From: Greg Barniskis <nalists@scls.lib.wi.us>
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To: Paul Hamilton <paulh@bdug.org.au>
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Cc: freebsd-questions@freebsd.org
Subject: Re: using fping to monitor internet connection status
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Paul Hamilton wrote:
> Hi,
>  
> I need to monitor a number of IP addresses, so that if they ALL go down (say
> three IP's), then that is a pretty good indication that my server has lost
> internet connectivity.  [snip]
> Any idea's on a ping tool or simple script?

Your test would be a little simpler if you just test one IP address: 
your ISP's upstream router. Its reachability is quite definitive re: 
whether your ISP link is up or down.

Even it it's assigned dynamically by DHCP, you should be able to 
write a script that pulls that IP, pings it a few times, and checks 
the result. No special tools necessarily required.

-- 
Greg Barniskis, Computer Systems Integrator
South Central Library System (SCLS)
Library Interchange Network (LINK)
<gregb at scls.lib.wi.us>, (608) 266-6348