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Wordsmith the BUGS section re: IPv6 link-local addresses.

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PR:		docs/66541
Submitted by:	Michel Lavondes (with some cleanups/additions)
This commit is contained in:
Bruce M Simpson 2004-06-14 16:04:59 +00:00
parent 22e9911e1d
commit c4d297d20d
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=130474
1 changed files with 13 additions and 7 deletions
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20
sbin/ifconfig/ifconfig.8
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@ -28,7 +28,7 @@
.\" From: @(#)ifconfig.8 8.3 (Berkeley) 1/5/94
.\" $FreeBSD$
.\"
.Dd April 11, 2004
.Dd June 14, 2004
.Dt IFCONFIG 8
.Os
.Sh NAME
@ -824,12 +824,18 @@ Messages indicating the specified interface does not exist, the
requested address is unknown, or the user is not privileged and
tried to alter an interface's configuration.
.Sh BUGS
IPv6 link-local addresses are required for several basic communication
between IPv6 node.
If they are deleted by
.Nm
manually, the kernel might show very strange behavior.
So, such manual deletions are strongly discouraged.
Basic IPv6 node operation requires a link-local address on each
interface configured for IPv6.
Normally, such an address is automatically configured by the
kernel on each interface added to the system; this behaviour may
be disabled by setting the sysctl MIB variable
.Em net.inet6.ip6.auto_linklocal
to 0.
.Pp
If you delete such an address using
.Nm ,
the kernel may act very oddly.
Do this at your own risk.
.Sh SEE ALSO
.Xr netstat 1 ,
.Xr netintro 4 ,