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IPv6 Addressing

IPv6 uses a 128-bit addressing model. This creates a much larger address space than IPv4 addresses, which are made up of 32 bits. IPv6 addresses also contain a scope field that categorizes what types of applications are suitable for the address. IPv6 does not support broadcast addresses, but instead uses multicast addresses to serve this role. In addition, IPv6 also defines a new type of address called anycast.

This section discusses the following topics that provide background information about IPv6 addressing:

Address Representation
Address Types
Address Scope
Address Structure

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