identify client

[Simon Hobson]

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.