Wordsmith the BUGS section re: IPv6 link-local addresses.
PR: docs/66541 Submitted by: Michel Lavondes (with some cleanups/additions)
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@ -28,7 +28,7 @@
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.\" From: @(#)ifconfig.8 8.3 (Berkeley) 1/5/94
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.\" $FreeBSD$
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.\"
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.Dd April 11, 2004
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.Dd June 14, 2004
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.Dt IFCONFIG 8
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.Os
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.Sh NAME
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@ -824,12 +824,18 @@ Messages indicating the specified interface does not exist, the
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requested address is unknown, or the user is not privileged and
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tried to alter an interface's configuration.
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.Sh BUGS
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IPv6 link-local addresses are required for several basic communication
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between IPv6 node.
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If they are deleted by
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.Nm
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manually, the kernel might show very strange behavior.
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So, such manual deletions are strongly discouraged.
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Basic IPv6 node operation requires a link-local address on each
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interface configured for IPv6.
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Normally, such an address is automatically configured by the
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kernel on each interface added to the system; this behaviour may
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be disabled by setting the sysctl MIB variable
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.Em net.inet6.ip6.auto_linklocal
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to 0.
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.Pp
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If you delete such an address using
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.Nm ,
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the kernel may act very oddly.
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Do this at your own risk.
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.Sh SEE ALSO
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.Xr netstat 1 ,
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.Xr netintro 4 ,
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