Abstract

Nodes often move from network to network. As these devices and the networks become more ubiquitous the ability to transit from network to network without dropping connectivity to a specific IP address becomes more and more useful. Mobility under IPv6 is made simpler than under IPv4 through the use of IPv6 header extensions and Neighbor Discovery. Mobile IPv6 enables mobility for non-PC devices, allowing the use of mobile telephones anywhere to serving Web data from highly mobile platforms. Another important aspect of portability is the close correlation between IPv6 and DNS. Where IPv4 nodes could conceivably operate without a mechanism for linking domain names to IP addresses, IPv6 insists on applications relying on DNS to translate the applications' domain names to IPv6 addresses.

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