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Cisco Self-Study: Implementing IPv6 Networks (IPV6) by Régis Desmeules

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IPv6 Internet

As discussed, the 6bone is an IPv6 backbone used for testing purposes. The 6bone runs using the IPv6 test address space 3ffe::/16, and its operation is based on best effort.

However, to build and deploy a reliable production IPv6 Internet around the world, the IPv6 must be able to provide production IPv6 address spaces to ISPs. Since 1999, RIRs have been allocating IPv6 production prefixes to ISPs.

This section provides information about production IPv6 address allocation policy, criteria to become an IPv6 Tier-1 provider, and address space reassignment to customers.

Regional Internet Registries

The IANA initially allocated the aggregatable global unicast IPv6 address space 2001::/16 for the production purposes of the IPv6 Internet. ...

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