[Bug 296656] IPv6 ND SIOCSIFINFO_IN6 cannot raise stale nd_linkmtu above already-clamped in6_ifmtu()

[email protected] Mon, 27 Jul 2026 09:33:06 +0000

Newsgroups	gmane.os.freebsd.devel.net
Message-ID	<[email protected]/bugzilla/>

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D296656

Andrey V. Elsukov <[email protected]> changed:

           What    |Removed                     |Added
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                 CC|                            |[email protected]

--- Comment #1 from Andrey V. Elsukov <[email protected]> ---
I assume you did copy handling from nd6_ra_opt_mtu(). This looks reasonable,
but I think you need add some handling to nd6_setmtu() too. Thus changing M=
TU
via ifconfig will also modify linkmtu.

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