For IP, you might want to use 'multiping' instead (in the support dir).
For RPC hosts, use support/rpcping.

Locations and syntax's for various pings...
----------------------------------------
SunOS 4.1.4
	/usr/etc/ping -s (verbose)  host  pktsize  count

SunOS 5.5
	/usr/sbin/ping -s (verbose) host pktsize count

HP-UX 9.x
	/usr/sbin/ping  -n count OR
	/usr/sbin/ping  host  pktsize  count

ULTRIX 4.4
	/etc/ping host pktsize count

AIX 2
	/etc/ping -c cnt  -s pktsize host

FreeBSD 2.1.0-RELEASE
	/sbin/ping -c count  -s pktsize  host

Linux 1.2.13
	/bin/ping -c count  -s pktsize  host

IRIX 5.3
	/usr/etc/ping -c count -s pktsize host

OSF1 V4.0
	/usr/sbin/ping -c cnt -s pktsize host


