Date: Sat, 22 Mar 2003 12:22:05 -0500 From: "Dan Langille" <dan@langille.org> To: Jon Hamilton <hamilton@pobox.com> Cc: mobile@FreeBSD.ORG Subject: Re: static IP via DHCP and multiple NICs Message-ID: <3E7C556D.1700.1464A077@localhost> In-Reply-To: <20030322170104.GA80709@woodstock.nethamilton.net> References: <3E7C4E05.32696.1447B082@localhost>
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On 22 Mar 2003 at 11:01, Jon Hamilton wrote:
> Dan Langille <dan@langille.org>, said on Sat Mar 22, 2003 [11:50:29 AM]:
> } When it comes to laptops, my house has two. Between them, they have
> } four NICs; two wireless, and two wired.
> }
> } I know how to configure DHCP so that a given IP address and hostname
> } is assigned based upon the mac address. Here's the example:
> }
> } host joe {
> } hardware ethernet 08:00:2b:4c:29:32;
> } fixed-address joe.fugue.com;
> } }
> }
> } What I'd like to do is allow the above box to use any of four NICs,
> } yet always get the same fixed address.
> }
> } Perhaps I should just assign one wireless NIC and one wired NIC to
> } each box and assume they are always with that box.
>
> No need; this can be done fairly easily. Configure each of your laptops
> to send an identifier in the DHCP request. If you're using dhclient, you
> can place in /etc/dhclient.conf:
>
> send dhcp-client-identifier "laptop1";
>
> Then on the DHCP server, you can use a declaration like:
>
> group {
> use-host-decl-names on;
>
> host laptop1.yourdomain.net {
> option dhcp-client-identifier "laptop1";
> option host-name "laptop1";
> fixed-address laptop1.yourdomain.net;
> }
> }
Is there a way to restrict MAC addresses while retaining the above
goals?
Thank you.
--
Dan Langille : http://www.langille.org/
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