Cause

Customer installed the recommended 2.5.1 patches. When he booted, rootuser.sh presented the following errors:

ifconfig bad address le0
le0 arp - revarp failed no rarp replies
bad address hme0
hme0 auto-revarp failed: no rarp replies received.

System fails to: resolve host ip address from /etc/host and no other rarp servers responded to the systems request for it's IP address.