IPv6 Address Types Overview

Global Unicast Address - Purpose

Publicly routable addresses

Global Unicast Address - Prefix

Starts with 2000::.

Global Unicast Address - Example

2001:0db8::1.

Unique Local Address (ULA) - Purpose

Private addresses for use within a local network.

Unique Local Address (ULA) - Prefix

Starts with fc00::.

Unique Local Address (ULA) - Example

fd00::1.

Link-Local Address - Purpose

Used for communication within a single network segment.

Link-Local Address - Prefix

Starts with fe80::.

Link-Local Address - Example

fe80::1.

Multicast Address - Purpose

Used to send data to multiple devices simultaneously.

Multicast Address - Prefix

Starts with ff00::.

Multicast Address - Example

ff02::1 (all nodes on the local network).

Anycast Address - Purpose

Identifies multiple interfaces

Anycast Address - Example

A group of DNS servers in an ISP.

Loopback Address - Purpose

Used to test network software on the local device.

Loopback Address - Address

::1.

Teredo Address - Purpose

Used for IPv6 tunneling over IPv4 networks.

Teredo Address - Prefix

Starts with 2001::.

Teredo Address - Example

2001::1.

6to4 Address - Purpose

Used for automatic tunneling of IPv6 traffic over IPv4 networks.

6to4 Address - Prefix

Starts with 2002::.

6to4 Address - Example

2002::1.