[Bug 263986] IPv6 address gets detached when using multiple IPv6 routers

From: <bugzilla-noreply_at_freebsd.org>
Date: Fri, 05 Aug 2022 12:52:44 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=263986

Frank Behrens <frank@pinky.sax.de> changed:

           What    |Removed                     |Added
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                 CC|                            |frank@pinky.sax.de

--- Comment #2 from Frank Behrens <frank@pinky.sax.de> ---
Created attachment 235692
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=235692&action=edit
workaround/wild hack when using ULA

I confirm the bug, I detected the same. When the validity of
prefix/address/router is checked, the own router advertisements and static
address assignments are not considered.

The attached patch does not fix the problem, but works for me as a workaround,
because I use a unique local address for the FreeBSD router. That should also
work for the original bug reporter. The patch does not prevent the change of
address state to "detached", but keeps the route working and allows a static
address with same prefix.

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