How to limit IP per MAC

[Keith Lawson]

Serveur-Faucon Surveillance wrote: 
 
>Very rarely, twice in my admin life actually 
>(for 8 years), some computer of service eat away 
>my IP address. 
> 
>What happen is that he ask for a IP address. So 
>DISCOVER, INFORM and ACK. After that he does the 
>same thing and get another IP address, rince and 
>repeat. 
> 
>Is there any way to limit the number of active IP address per MAC
address? 

Does anyone know why clients behave like this? We've suddenly noticed a
few devices on our network that have taken multiple addresses. 

Thanks, 
Keith.  

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