[Bug 214746] Carp ipv6 duplicate address detection

From: <bugzilla-noreply_at_freebsd.org>
Date: Tue, 25 Jul 2023 10:06:05 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=214746

Andrey V. Elsukov <ae@FreeBSD.org> changed:

           What    |Removed                     |Added
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                 CC|                            |ae@FreeBSD.org

--- Comment #6 from Andrey V. Elsukov <ae@FreeBSD.org> ---
You can use no_dad flag when you create vlan interface. We usually configure
all addresses manually on carp interfaces and also use -auto_linklocal flag:

# vlan416
carp_interfaces="${carp_interfaces} vlan416"
ifconfig_vlan416="vlan 416 vlandev ${vlanif} mtu 1500"
ifconfig_vlan416_ipv6="inet6 -auto_linklocal no_dad"
ifconfig_vlan416_alias1="inet A.B.C.D/28 vhid N ${carp_args}"
ifconfig_vlan416_alias2="inet6 XX:XX:XX:XX::1/64 vhid M ${carp_args}"
ifconfig_vlan416_alias3="inet6 fe80::1/64 vhid M ${carp_args}"

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