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becarpenter-book6/2. IPv6 Basic Technology/2. IPv6 Basic Technology.md
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IPv6 Basic Technology

The main standard for IPv6 is RFC 8200. Many other relevant RFCs are cited in IPv6 node requirements. Quotes from relevant RFCs are included in this chapter.

Some generic terms that should be used precisely are given in Section 2 of RFC 8200. In particular:

  • Node: a device that implements IPv6

  • Router: a node that forwards IPv6 packets not explicitly addressed to itself

  • Host: any node that is not a router

To avoid confusion, note that a router may receive and send its own packets, and run IPv6 applications, just as a host does.

The rest of this chapter covers various basic aspects of IPv6.

Packet Format

Addresses

Layer 2 functions

Address resolution

Auto-configuration

Managed configuration

DNS

Routing

Transport protocols

Extension headers and options

Traffic class and flow label

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