ISP customer assignments

Ricky Beam jfbeam at
Tue Oct 6 02:53:17 UTC 2009

On Mon, 05 Oct 2009 18:55:35 -0400, Dan White <dwhite at> wrote:
> All of the items in the above list are true of DHCP. ...

In an IPv4 world (which is where DHCP lives), it's much MUCH harder to  
track assignments -- I don't share my DHCP logs with anyone, nor does  
anyone send theirs to me.  From the perspective of remote systems (ie. not  
on the same network), there is about a 100% chance NAT is involved making  
it near impossible to individually identify a specific machine, even if it  
gets the same address every Tuesday when you're at Starbucks for coffee.   
IPv6 does away with NAT (or it's supposed to); in doing so, the veil is  
removed and everything that had been hidden from site is now openly  
displayed.  If the "host" part of your address never changes, then you are  
instantly identifiable everywhere you go, with zero effort, forever.


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