On 2007/12/06 10:06, Josh wrote:

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> So anyway, I was downloading some 4.2 install binaries onto the backup fw,

> and I noticed that the backup/primary carp interfaces kept on switching

> between master/backup fairly rapidly ( around every 5 - 10 seconds or so )

> despite both hosts being up just fine.

>

> Any ideas on what might be causing this?

If you reconfigured addresses on the interfaces after configuring

them, it's most likely to be the problem fixed in r1.135 of

http://www.openbsd.org/cgi-bin/cvsweb/src/sys/netinet/ip_carp.c
> Also, My understanding of net.inet.carp.preempt=1 needs to be adjusted I

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> think; I thought that it meant if one carp interface goes down, ie,

> unplugged or whatever, then the rest go down, ie all other interfaces on the

> box? Is this right?

Not always, see http://www.mail-archive.com/misc@openbsd.org/msg34354.html