Permanent arp entry expires in 20 seconds on 8.0-RC2

[Eugene Perevyazko]

Hello freebsd-network readers!

This is on FreeBSD 8.0-RC2 (sys/netinet/in.c is 1.143.2.9.2.1)

  If I try to set permanent arp entry with "arp -s host etheraddr" and there
exists an "incomplete" entry for this host at the moment, then this "permanent"
entry will expire in 20 seconds.

  If I set arp with "arp -S host etheraddr" - it will be really permanent.

  It looks like with "-s" the flag of incompleteness isn't cleared.

Is this a bug or a feature?

-- 
Eugene Perevyazko