arp strangeness?

[Michael Sierchio]

On Sat, May 17, 2014 at 4:30 PM, Ronald F. Guilmette <rfg at tristatelogic.com>
wrote:

> May 16 23:05:33 segfault kernel: arp: 69.62.255.254 moved from
00:1e:13:22:eb:51 to 00:00:0e:07:ac:00 on rl0
> May 16 23:05:33 segfault kernel: arp: 69.62.255.254 moved from
00:00:0e:07:ac:00 to 00:1e:13:22:eb:51 on rl0
> May 16 23:25:29 segfault kernel: arp: 69.62.255.254 moved from
00:1e:13:22:eb:51 to 00:00:0e:07:ac:00 on rl0
> May 16 23:25:29 segfault kernel: arp: 69.62.255.254 moved from
00:00:0e:07:ac:00 to 00:1e:13:22:eb:51 on rl0

Yeah, the router address may be a synthetic address shared by multiple
physical interfaces, or
it may be fictional and handled via multiple interfaces/routers/etc. in
your ISPs fabric running some HA
routing (via OSPF for example).

It's normal.

- M