On Tue, 9 Jun 1998, Dan McMahill wrote:
> What does this console message mean?
> 
> Jun  8 17:35:48 dinah-moe /netbsd: arp info overwritten for 0a000001 by 00:40:05:59:8f:dd

I think it means that some machine on your net had IP address 10.0.0.1,
then some other machine (with ethernet address 00:40:05:...) used that
same IP address. Check for duplicate IP addresses on your network...
-- 
Name: Dave Huang     |   Mammal, mammal / their names are called /
INet: khym@bga.com   |   they raise a paw / the bat, the cat /
FurryMUCK: Dahan     |   dolphin and dog / koala bear and hog -- TMBG
Dahan: Hani G Y+C 22 Y++ L+++ W- C++ T++ A+ E+ S++ V++ F- Q+++ P+ B+ PA+ PL++