HP Imaging and Printing IPv6 FAQs
The IPv6 family supports a range of new functionally. IPv6 tackles critical areas of IP standards, such as address depletion, end-to-end authentication and security, packet handling efficiency, and improved scalability. All designs were optimized for use with 64-bit hardware and software. IPv6 provides true IP mobility by enabling secure access from any place, at any time, all the time. It is simpler and easier to configure and offers better network management than IPv4. IPv6 is the standard for global information technology for decades to come.
• Addressing: IP address size increases from 32 bits with IPv4 to 128 bits with IPv6, which provides enough IP addresses so that for the foreseeable future, all nodes can have a globally unique address for true peer-to-peer communication. The IPv6 addressing scheme uses hierarchically assigned addresses with a logical separation of “who you are” (interface ID) from “where you are connected” (prefix) to allow more efficient routing.
• Support for renumbering: IPv6 brings link level support for renumbering (changing IP addresses across a network). IPv6 addresses have associated lifetimes: as the lifetime of the old address expires, a new address can be automatically configured. You can easily renumber IPv6 hosts by adding a new prefix to the router, which reduces the lifetime of the old prefix. As nodes depreciate the old prefix, the new prefix is used for new connections. Renumbering happens automatically! This may provide many benefits, including the end of ISP “lock in,” improved competition, and reduced costs when renumbering due to the joining of two networks, as in the case of corporate mergers or acquisitions.
• Management: IPv6 makes getting on the network as simple as plugging a cable into your computer. IPv6 nodes automatically configure themselves using IPv6 stateless auto-configuration or a version of the Dynamic Host Configuration Protocol (DHCPv6)—all without human intervention. These features deliver true plug-and-play network access, placing the IT director in control and allowing network operation staff to focus on running the network, rather than manually configuring new users.
• Efficient mobility support: With built-in mobility support, every network is mobile-ready, requiring little pre-existing infrastructure. Each IPv6 node can act as a correspondent and redirect packets to the new mobile node’s care-of-address.
• IPv6/IPv4 interoperability: Given the millions of existing systems currently running IPv4, it is clear that successful adoption of the IPv6 technology suite will be largely based on its ability to integrate with the existing IPv4 infrastructure. To address this requirement, IPv6 is carefully designed to ensure that hosts or routers can be upgraded in an incremental manner and that IPv6 and IPv4 hosts and routers can interoperate in a variety of configurations
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