WARNING: Failed to install socket filter

[brad]

Hi everyone,

I installed nagios on a redhat 8.0 box with 3 virtual IP's.  When I
first pulled up the service detail page it showed most of my hosts being
critical, all with the error 'WARNING: Failed to install socket filter:
protocol not available'.  If I stop nagios I can manually ping these
hosts without getting this error, but as soon as I restart nagios, the
errors return.  Anyone have any ideas?

TIA,

Brad