With IPv6, any device we connect to the network will automatically be configured to interact with other nodes on the same subnet and even to access the Internet, thanks to its stateless autoconfiguration features? Truly "plug & play"!
In IPv6 mobility does not have the problem of unbalanced routing as like in IPv4 packages, so that a mobile connection is so efficient as a normal connection. This is due to there is a process through which the mobile node can inform the node which communicates to which is the address in the new network and use this address for their communication.