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DHCP for Windows 2000 by Neall Alcott

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Chapter 12. What Lies Ahead: IPv6 and DHCPv6

This chapter takes a peek at an upcoming change that will affect the Internet and possibly any organization using TCP/IP and DHCP. Although Windows 2000 does not ship with IPv6 support, it will be added in future releases.

IPv6

Currently the Internet uses Internet Protocol version 4, which was designed over 20 years ago. A very versatile protocol, IPv4 has evolved as the Internet has grown. However, over the years IPv4’s limitations have become more obvious. The biggest problem is its limiting 16-bit address space, with a maximum of 4,294,967,296 possible addresses. Other problems include poor scalability and lack of encryption and authentication measures.

With these limitations in mind, the IETF set out to create the next version of IP, Internet Protocol version 6 (IPv6), also known as IPng (Internet Protocol Next Generation). The IETF created a comprehensive set of specifications that define IPv6. Table 12.1 lists of some of the IPv6 RFCs.

Table 12-1. IPv6 RFCs

RFC #

RFC Title

URL

RFC2460

Internet Protocol, Version 6 (IPv6) Specification

http://www.ietf.org/rfc/rfc2460.txt

RFC2463

Internet Control Message Protocol (ICMPv6) for the Internet Protocol Version 6 (IPv6) Specification

http://www.ietf.org/rfc/rfc2463.txt

RFC2373

IP Version 6 Addressing Architecture

http://www.ietf.org/rfc/rfc2373.txt

RFC1886

DNS Extensions to Support IP Version 6

http://www.ietf.org/rfc/rfc1886.txt

RFC1971

IPv6 Stateless Address Autoconfiguration ...

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