The Configure IPv4 and IPv6 Addressing module provides you with the instruction and server hardware to develop your hands on skills in the defined topics. This module includes the following exercises:

  • Understand IPv6 Link Local Address
  • Configure the Network to Use an ISATAP Router
  • Setup Network Connectivity Between IPv4 and IPv6 devices

Exercise 1 - Understand IPv6 Link Local Address

Internet Protocol version 6 or IPv6 is the new network protocol that will replace Internet Protocol version or IPv4. In terms of scalability, IPv6 supports an expanded address space that can accommodate billions of devices to connect to the Internet.

An IPv6 address has 128 bits available to identify a device/node whereas IPv4 has 32 bits available. IPv4 uses a dotted decimal system for example:

IPv6 address is split into eight 16 bit blocks, where each block is represented by 4 hexadecimal digits separated by a colon for example: 2001:0000:0000:bf66:daf5:f992:38fe:f927. The block of zeroes can be omitted to simplify the IPv6 address into 2001:0:0:bf66:daf5:f992:38f3:f927. This address can be simplified further by rewriting it as 2001::bf66:daf5:f992:38f3:f927, the two colons represent the blocks of zeroes that were omitted. Only one block of zeroes can be replaced by the “::” the double colon, because IPv6 will be unable to reconstruct the address.

The three types of IPv6 address that can be assigned to a network node are unicast, multicast and anycast.

  • A unicast address identifies a single interface on a node.
  • A multicast address is the same as IPv4 multicast address and can be shared by several interfaces on several nodes.
  • An anycast address is an address assigned to a set of interfaces that belong to different nodes.

Exercise 2 - Configure the Network to Use an ISATAP Router

Intra-site Automatic Tunnel Addressing Protocol or ISATAP is a bridge-over technology that enables IPv4-only networks and devices to communicate with the more evolved IPv6-only counterparts. In this context, an ISATAP router is an essential element of any network that can be utilized to communicate with the more advanced IPv6 networks or devices; or is to be itself upgraded from the current IPv4 support to IPv6 support. ISATAP is a built-in feature for Windows Vista and later, and Windows Server 2008 and later versions.

You configure a Windows Server 2008 R2 host to operate as an ISATAP router. The configuration enables the host to send out messages offering ISATAP addressing and routing information to the ISATAP-enabled devices. This configuration uses CLI commands as, currently, no GUI is available to configure these hosts.

In this exercise, you will configure one of the hosts on the network to operate as an ISATAP router.

Exercise 3 - Setup Network Connectivity Between IPv4 and IPv6 devices

With the environment configured in exercise 1 to support an ISATAP router, you will now setup network communication session amongst IPv4-only network and IPv6-only network.

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