Question about dhcp-client-identifier

Glenn Satchell Glenn.Satchell at
Wed Aug 22 14:02:50 UTC 2007

>Date: Wed, 22 Aug 2007 23:56:30 +1000 (EST)
>From: Glenn Satchell <Glenn.Satchell at>
>Subject: Re: Question about dhcp-client-identifier
>To: dhcp-users at
>>Date: Wed, 22 Aug 2007 14:38:52 +0100
>>To: dhcp-users at
>>From: Simon Hobson <dhcp1 at>
>>Subject: Re: Question about dhcp-client-identifier
>>Darren wrote:
>>>  > In both cases the devices will not work properly, wouldn't it be
>>>>  better for them to be very broken so that the problem is less subtle
>>>>  and less hard to diagnose ?
>Why are you even worrying about this situation and DHCP? If two devices
>on the same subnet have the same mac address then things break at layer
>2. Think about the ARP table, fo rexample. It doesn't even matter
>whether they have the same or different IP addresses. It also doesn't
>matter whether they got this address by DHCP or manually setting it -
>the network will still be broken.
>I can only assume that you are working in a "hostile" environment like
>a University computer lab or similar and expect users to change their
>mac address manually.
>Either way, this is not something that can really be "fixed" with a dhcp
Ok, you mostly answered the question in the email that arrived a minute
after this one - referring to CALEA.


More information about the dhcp-users mailing list