[Bug 254445] cloned_interfaces="bridge0" does not respect net.inet6.ip6.auto_linklocal
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Date: Mon, 19 May 2025 03:30:57 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=254445
Lexi Winter <ivy@FreeBSD.org> changed:
What |Removed |Added
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CC| |ivy@FreeBSD.org
--- Comment #2 from Lexi Winter <ivy@FreeBSD.org> ---
since we don't enable IPv6 on interfaces by default, the only way a bridge can
lose the IFDISABLED flag is if the user explicitly configured the system that
way, in which case it doesn't make sense to me to not auto-configure link-local
addresses in the same way as every other interface.
so, i think we should remove this exception and handle bridges the same way as
other interfaces.
i suspect the original behaviour is related to the link-local address scope
violation described in the "IPv6 support" section of the bridge(4) manual page,
but since allow_llz_overlap is set to 0 by default, it would require explicit
admin intervetion to end up with the broken configuration.
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