Date: Sat, 22 Mar 2003 11:57:17 -0600 From: Jon Hamilton <hamilton@pobox.com> To: Dan Langille <dan@langille.org> Cc: mobile@FreeBSD.ORG Subject: Re: static IP via DHCP and multiple NICs Message-ID: <20030322175717.GA59999@woodstock.nethamilton.net> In-Reply-To: <3E7C556D.1700.1464A077@localhost> References: <3E7C4E05.32696.1447B082@localhost> <3E7C556D.1700.1464A077@localhost>
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Dan Langille <dan@langille.org>, said on Sat Mar 22, 2003 [12:22:05 PM]:
} 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]:
} > } 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?
One would think adding a:
hardware ethernet <mac address>;
line in the host stanza on the server would suffice. Whether you can use
multiple such lines (4 in your case) in a single entry, or whether you'd
need to create 4 host entries with different hardware lines isn't clear to
me from reading the man page. Something to play with, anyway.
--
Jon Hamilton
hamilton@pobox.com
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