From: Casey, Paul (6822) (Paul.Casey@o2.com)
Date: Sat Sep 07 2002 - 12:05:45 GMT-3
Porbably mobile IP.
This is used normally in wireless networks or mobile networks where you are
mobile ie you roam from place to place.. Therefore moving in to subnet space
in different locations.. Even if you receive a dynamic ip address..when roam
to another subet, you can still keep the dynamic address you were assigned,
even though it doesn't belong in the new subet, and basically the address is
I think tunneled/encapsulated through the new subnet, back to the core, ...
You could I assume release and renew thus getting a new address on the new
subnet, though your session would be dropped acordingly, and re esablished..
You will see more of this with new technologies like UMTS 5.0/3G where the
MS station/ phone is IP aware.. And you are constantly on the move from cell
to cell..
I think this is the correct explanation,
Someone else might care to add more information..
Maybe you could test this in a lab environment ..
Kind regards.
Paul..
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