DHCP identification

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Mar 29th, 2007
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Is there any way to get DHCP (or any other mechanism) to assoiciate a username with an assigned ip address. I have a Cisco 2600 with 8 modems attached. I would like to have a table ( or whatever) that says if user "A" dials in he should always use IP address and so on.

Sounds simple ? Is there any thing like this ?

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Collin Clark Thu, 03/29/2007 - 12:56
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You must use the client's MAC address to create the reservation in DHCP. Here is an example-

ip dhcp pool laptop


client-identifier 0100.1500.2c1b.ae



lease 0 9

This assigns the .252 address to the associated MAC address. Note that the Client identifier requires a prefix of 01 on the MAC address.

HTH and please rate.

eidavis Thu, 03/29/2007 - 13:18
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So where exactly does the mac address come from ? The remote clients (laptop) dial up interface ? I must have not been clear... I'm asking about dial-up not LAN based DHCP


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