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Date:      Thu, 14 Feb 2008 23:08:00 +1030
From:      "Daniel O'Connor" <doconnor@gsoft.com.au>
To:        Mark Andrews <Mark_Andrews@isc.org>
Cc:        freebsd-stable@freebsd.org
Subject:   Re: Can't delete IPV6 addresses with ifconfig
Message-ID:  <200802142308.07630.doconnor@gsoft.com.au>
In-Reply-To: <200802141213.m1ECD4pj080346@drugs.dv.isc.org>
References:  <200802141213.m1ECD4pj080346@drugs.dv.isc.org>
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On Thu, 14 Feb 2008, Mark Andrews wrote:
> > --nextPart1996860.fztbeObibp
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> > Hi,
> > I am experimenting with IPv6 and I can't seem to remove an IPv6
> > address=3D20 from an interface, eg I have..
> > [midget 22:11] ~ >ifconfig fxp0
> > fxp0: flags=3D3D8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST>
> > mtu=3D20 1500
> >         options=3D3Db<RXCSUM,TXCSUM,VLAN_MTU>
> >         inet 10.0.2.1 netmask 0xffffff00 broadcast 10.0.2.255
> >         inet 10.0.2.3 netmask 0xffffffff broadcast 10.0.2.3
> >         inet 10.0.2.4 netmask 0xffffffff broadcast 10.0.2.4
> >         inet 10.0.2.7 netmask 0xffffffff broadcast 10.0.2.7
> >         inet6 2002:792d:8527::1:1 prefixlen 64
> >         ether 00:02:b3:32:2c:51
> >         media: Ethernet 100baseTX
> >         status: active
> >
> > But I can't remove it, viz..
> > [midget 22:11] ~ >sudo ifconfig fxp0 -alias 2002:792d:8527::1:1/64
> > ifconfig: 2002:792d:8527::1:1/64: bad value
> > [midget 22:27] ~ >sudo ifconfig fxp0 delete 2002:792d:8527::1:1/64
> > ifconfig: 2002:792d:8527::1:1/64: bad value
> > [midget 22:27] ~ >sudo ifconfig fxp0 delete 2002:792d:8527::1:1
> > ifconfig: 2002:792d:8527::1:1: bad value
> > [midget 22:27] ~ >sudo ifconfig fxp0 delete 2002:792d:8527::1:1=3D20
> > prefixlen 64
> > ifconfig: 2002:792d:8527::1:1: bad value
> > [midget 22:27] ~ >sudo ifconfig fxp0 delete 2002:792d:8527::/64
> > ifconfig: 2002:792d:8527::/64: bad value
> >
> > Anyone know the right way to do this? :)
>
> ifconfig fxp0 -alias inet6 2002:792d:8527::1:1

This doesn't work, what Hajimu suggested does though.

=2D-=20
Daniel O'Connor software and network engineer
for Genesis Software - http://www.gsoft.com.au
"The nice thing about standards is that there
are so many of them to choose from."
  -- Andrew Tanenbaum
GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C

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