host-identifier with IPv6

Frank Sweetser fs at WPI.EDU
Wed Mar 4 02:51:02 UTC 2009


Ted Lemon wrote:
> On Mar 3, 2009, at 7:30 PM, Frank Sweetser wrote:
>> Primarily because you don't know which one will get reported.  If I 
>> have a
>> wired and a wireless adapter, how do I know which one I should 
>> register?  And
>> if I wipe the system and put a new OS image on it, will it pick the same
>> adapter as the previous one?
> 
> Right, so if you put an entry in the database from each Mac address to 
> that machine, then whichever one the client uses will be in the 
> database, and will definitively identify the machine.   So it doesn't 
> matter which one the client chooses, and it doesn't matter if it chooses 
> a different one the next time you install, because you're prepared for 
> it to choose either one.   And indeed I don't see any other way to 
> architect the database, unless you currently treat a single multihomed 
> machine as two machines.

As a matter of fact, that's exactly what we already have to do for the DHCPv4 
configuration.

-- 
Frank Sweetser fs at wpi.edu  |  For every problem, there is a solution that
WPI Senior Network Engineer   |  is simple, elegant, and wrong. - HL Mencken
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