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Date:      Tue, 17 Oct 2000 23:33:40 -0400
From:      Mike Tancsa <mike@sentex.net>
To:        Kahn@deadbbs.com ("Erin")
Cc:        questions@freebsd.org
Subject:   Re: Adding an IP alias without a reboot.
Message-ID:  <db6qus0fq4oq32fqn9h5lstebadd7eppf0@4ax.com>
In-Reply-To: <SEN.971806846.696389195@news.sentex.net>
References:  <SEN.971806846.696389195@news.sentex.net>

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On 17 Oct 2000 14:20:46 -0400, in sentex.lists.freebsd.questions you =
wrote:

>I have a production machine whos IP is going to change. I have to add an
>aliased IP to it for a while from a completely different subnet then by =
the
>middle of next month have everything changed over (i.e. defaultrouter, =
dns
>servers, etc.). I'd like to do this with out rebooting the machine if
>possable.

lets say its fxp0, old address is 192.168.1.1/24, new address is
172.16.20.1/25

ifconfig fxp0 172.16.20.1 netmask 255.255.255.128 alias

later....

ifconfig fxp0 172.16.20.1 netmask 255.255.255.128 -alias
ifconfig fxp0 192.168.1.1 netmask 255.255.255.0 -delete
arp -da
route delete 192.168.1.0/24
ifconfig fxp0 172.16.20.1 netmask 255.255.255.128

	---Mike
Mike Tancsa  (mdtancsa@sentex.net)	=09
Sentex Communications Corp,   	=09
Waterloo, Ontario, Canada
"Given enough time, 100 monkeys on 100 routers=20
could setup a national IP network." (KDW2)


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