From owner-freebsd-pf@FreeBSD.ORG  Wed Sep 14 09:38:36 2005
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From: "Ivan R. Sy Jr." <isy@infoweapons.com>
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Subject: IPv6 CARP with preempt not working
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Hi All!

have anyone of you guys found a suitable solution/lead to this issue?

if you enable a CARP interface with ipv4 and ipv6 address it would work 
pretty neat.

carp0: flags=41<UP,RUNNING> mtu 1500
         inet 10.3.2.30 netmask 0xff000000
         inet6 2001:abc:4002::ff30 prefixlen 64
         carp: MASTER vhid 1 advbase 1 advskew 1


but with

net.inet.carp.preempt=1

IPv6 won't work. perhaps there are no inet6 sys controls?

any help or advise is highly appreciated.

THanks