I tried to move net-boot server from i386/1.5B to alpha/1.5F
and discovered that I can't make published entry by arp.

I'm doing 
arp -s <hostname or ip doesn't mater> ether_addr pub

arp returns silently or with error
arp: writing to routing socket: File exists

Check by 'arp -a' doesn't show requested entry.

Has anybody seen this before, is there anybody who tried
the same? Any additional information will be provided for
somebody interested.

Thank you,
	Andrey