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Date:      Thu, 20 Mar 2025 09:00:03 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 285545] netinet6: binding to an inet6 anycast address should be permitted
Message-ID:  <bug-285545-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=285545

            Bug ID: 285545
           Summary: netinet6: binding to an inet6 anycast address should
                    be permitted
           Product: Base System
           Version: 15.0-CURRENT
          Hardware: Any
               URL: https://github.com/freebsd/freebsd-src/pull/1618
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: bugs@FreeBSD.org
          Reporter: lexi@hemlock.eden.le-fay.org

bind(2) (via netinet6/in6_pcb.c:in6_pcbbind_avail()) disallows binding to
IN6_IFF_ANYCAST addresses.  this was forbidden by RFC 3513, but the restriction
was lifted in RFC 4291, so we should allow this.

see URL for patch.

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