[CUWiN-Dev] macshift - MAC address randomizing obfuscator

[Jim Thompson]

I dunno man, if it was perfectly random, and everyone used it, the 
chances of a collision would be "quite low".

Lets assume that for some reason we find it valuable to 'keep' 16 bits 
of the 48 bit Mac address.  Then the birthday paradox suggests that we 
will only have a collision in 2^16 ( 2√232) machines.

Combine this with being able to re-roll the dice in the case of a 
duplicated Mac (well-known art, btw), and mac address space collisions 
should become a none-too-fond memory.

Of course, I don't know if/why there is a problem to begin with.

Jim

On Feb 7, 2005, at 7:28 AM, David Young wrote:

> On Mon, Feb 07, 2005 at 11:17:49AM -0600, Sascha Meinrath wrote:
>> FYI: GPL-licensed utility for Windows that assigns a random MAC 
>> address to
>> your wireless adapter every time you connect to a WLAN.  You can also
>> specify a certain address if you prefer.
>>
>> http://students.washington.edu/natetrue/macshift/
>>
>> could something like this be utilized to automatically detect MAC
>> collisions and reassign a MAC on our nodes?
>
> No.
>
> Dave
>
> -- 
> David Young             OJC Technologies
> dyoung at ojctech.com      Urbana, IL * (217) 278-3933
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