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List:       dhcp-users
Subject:    Re: identify client
From:       Simon Hobson <dhcp1 () thehobsons ! co ! uk>
Date:       2007-02-28 19:58:25
Message-ID: a06230900c20b8edbd69c () [192 ! 168 ! 0 ! 100]
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Matt Laoye wrote:
>Is there a way for the dhcp server to tell that the requests are from
>the same client for machines with multiple interfaces?


>So far the only option I can find is client-hostname, but it doesn't seem to
>be a reliable information:
>it can be easily changed  also not all clients send client-hostname.

I think you've summed it up there !

Unfortunately, the MAC address is the only (mostly) reliable 
identifier, and even that can be altered by the user. You could use 
client-id IF you had control of all the clients, but since you're in 
a situation where that isn't the case, then I don't think there is 
any safe method.

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