I have a 2-node netware cluster running Netware 6.5sp5 and NFS shared
home directory to Linux/Solaris clients.

They worked most of the time.
However some (not all at the same time) client have their NFS home time
out, whenever this happened, I found those client got the WRONG Ethernet
address. If I use arp -d IP, the mount will return to normal. Sometime
later, it may happen again.

I wounder why this happened, I haven't migrate HOME at all, but they
still receive the other server's ARP for that IP.