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Date: Fri, 03 Nov 2006 00:24:28 +0000
From: Vince Hoffman <jhary@unsane.co.uk>
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To: Andrew Falanga <af300wsm@gmail.com>
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Cc: Steve Bertrand <iaccounts@ibctech.ca>,
	freebsd-questions <freebsd-questions@freebsd.org>
Subject: Re: Change an IP address without a reboot
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Andrew Falanga wrote:
> On 11/2/06, Steve Bertrand <iaccounts@ibctech.ca> wrote:
>>
>> mybox# ifconfig
>> rl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
>>         options=8<VLAN_MTU>
>>         inet 208.70.104.3 netmask 0xffffff80 broadcast 208.70.104.127
>>         inet 192.168.250.1 netmask 0xffffff00 broadcast 192.168.250.255
>>
>> ...now,
>>
>> mybox# ifconfig rl0 delete 192.168.250.1
>>
>> ...and finally,
>>
>> newmarlo# ifconfig
>> rl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
>>         options=8<VLAN_MTU>
>>         inet 208.70.104.3 netmask 0xffffff80 broadcast 208.70.104.127
>>
>
> This seems to work for IPv4 address as I tried the above.  I added the
> address and then deleted it.  However, when I attempt to delete the IPv6
> address I've given to the interface, I continually get "bad value."  For
> example,
>
> ifconfig sis0 inet6 fec0:1:1:1::2/64
>
> ifconfig sis0 delete fec0:1:1:1::2
>
> Which returns:
>
> ifconfig: fec0:1:1:1::2: Bad value
You have the order wrong

root@crayfish
(00:22:37 <~>) 0 # ifconfig xl0 inet6 2001:470:1f01:244::30
root@crayfish
(00:23:27 <~>) 0 # ifconfig xl0
xl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        options=9<RXCSUM,VLAN_MTU>
        inet6 fe80::211:d8ff:fe9f:531c%xl0 prefixlen 64 scopeid 0x1
        inet 10.0.0.100 netmask 0xffffff80 broadcast 10.0.0.127
        inet6 2001:470:1f01:244::30 prefixlen 64
        ether 00:11:d8:9f:53:1c
        media: Ethernet autoselect (100baseTX <full-duplex>)
        status: active
root@crayfish
(00:23:32 <~>) 0 # ifconfig xl0 inet6 2001:470:1f01:244::30 remove
root@crayfish
(00:23:34 <~>) 0 # ifconfig xl0
xl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        options=9<RXCSUM,VLAN_MTU>
        inet6 fe80::211:d8ff:fe9f:531c%xl0 prefixlen 64 scopeid 0x1
        inet 10.0.0.100 netmask 0xffffff80 broadcast 10.0.0.127
        ether 00:11:d8:9f:53:1c
        media: Ethernet autoselect (100baseTX <full-duplex>)
        status: active



>
> I've even tried expressing all 8 "blocks" of the IPv6 address.  Could 
> this
> be a defect in how ifconfig handles IPv6 addresses?  If so, whom do I
> contact to look into it?
>
> Andy
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