Monitoring hosts behind a load balancer

[Steve Holmes]

Greetings, I'm monitoring several Solaris 10 servers which are behind an F5
load balancer. One of the features of the F5 is that it answers pings for
all of the hosts behind it, even if they are all down. Has anyone devised a
method of testing the servers for being alive in this context? There are no
other network based tests being done. Yes, all of the other tests eventually
go purple in Xymon, but we'd like to know that the hosts are down when that
happens.

Thanks,
Steve Holmes
ITaP/Purdue University
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