IPv6 allows devices remain reachable while moving around in the IPv6 Internet. Each mobile device is always identified by its home address, regardless of its current point of attachment to the Internet. While situated away from its home, a mobile device is also associated with a care-of address, which provides information about the mobile device’s current location. IPv6 packets addressed to a mobile device's home address are transparently routed to its care-of address. The protocol enables IPv6 devices to cache the binding of a mobile device's home address with its care-of address, and to then send any packets destined for the mobile node directly to it at this care-of address.
All IPv6 devices, whether mobile or stationary, can communicate with mobile devices.