On Sun, 12 Dec 2004 02:17:48 +0800, Simon SZE-To <simonchs at gmail dot com> wrote:
> problem solved without doing anything after 6 hours.
> maybe the switch of my ISP cached the arp? (wow...6 hours cache..)
Probably their router. Cisco equipment has a default of 4 hours,
though that's configurable.