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System Administration Guide: IP Services     Oracle Solaris 11 Express 11/10
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Document Information


Part I TCP/IP Administration

1.  Planning an IPv4 Addressing Scheme (Tasks)

2.  Planning an IPv6 Addressing Scheme (Overview)

3.  Planning an IPv6 Network (Tasks)

IPv6 Planning (Task Maps)

IPv6 Network Topology Scenario

Preparing the Existing Network to Support IPv6

Preparing the Network Topology for IPv6 Support

Preparing Network Services for IPv6 Support

Preparing Servers for IPv6 Support

How to Prepare Network Services for IPv6 Support

How to Prepare DNS for IPv6 Support

Planning for Tunnels in the Network Topology

Security Considerations for the IPv6 Implementation

Preparing an IPv6 Addressing Plan

Obtaining a Site Prefix

Creating the IPv6 Numbering Scheme

Creating a Numbering Scheme for Subnets

Creating an IPv6 Addressing Plan for Nodes

4.  Configuring TCP/IP Network Services and IPv4 Addressing (Tasks)

5.  Enabling IPv6 on a Network (Tasks)

6.  Administering a TCP/IP Network (Tasks)

7.  Configuring IP Tunnels

8.  Troubleshooting Network Problems (Tasks)

9.  TCP/IP and IPv4 in Depth (Reference)

10.  IPv6 in Depth (Reference)


11.  About DHCP (Overview)

12.  Planning for DHCP Service (Tasks)

13.  Configuring the DHCP Service (Tasks)

14.  Administering DHCP (Tasks)

15.  Configuring and Administering the DHCP Client

16.  Troubleshooting DHCP (Reference)

17.  DHCP Commands and Files (Reference)

Part III IP Security

18.  IP Security Architecture (Overview)

19.  Configuring IPsec (Tasks)

20.  IP Security Architecture (Reference)

21.  Internet Key Exchange (Overview)

22.  Configuring IKE (Tasks)

23.  Internet Key Exchange (Reference)

24.  IP Filter in Oracle Solaris (Overview)

25.   IP Filter (Tasks)

Part IV Networking Performance

26.  Integrated Load Balancer Overview

27.  Configuration of Integrated Load Balancer Tasks

28.  Virtual Router Redundancy Protocol (Overview)

29.  VRRP Configuration (Tasks)

30.  Implementing Congestion Control

Part V IP Quality of Service (IPQoS)

31.  Introducing IPQoS (Overview)

32.  Planning for an IPQoS-Enabled Network (Tasks)

33.  Creating the IPQoS Configuration File (Tasks)

34.  Starting and Maintaining IPQoS (Tasks)

35.  Using Flow Accounting and Statistics Gathering (Tasks)

36.  IPQoS in Detail (Reference)



Preparing an IPv6 Addressing Plan

A major part of the transition from IPv4 to IPv6 includes the development of an addressing plan. This task involves the following preparations:

Obtaining a Site Prefix

Before you configure IPv6, you must obtain a site prefix. The site prefix is used to derive IPv6 addresses for all the nodes in your IPv6 implementation. For an introduction to site prefixes, refer to Prefixes in IPv6.

Any ISP that supports IPv6 can provide your organization with a 48-bit IPv6 site prefix. If your current ISP only supports IPv4, you can use another ISP for IPv6 support while retaining your current ISP for IPv4 support. In such an instance, you can use one of several workarounds. For more information, see Current ISP Does Not Support IPv6.

If your organization is an ISP, then you obtain site prefixes for your customers from the appropriate Internet registry. For more information, see the Internet Assigned Numbers Authority (IANA).

Creating the IPv6 Numbering Scheme

Unless your proposed IPv6 network is entirely new, use your existing IPv4 topology as the basis for the IPv6 numbering scheme.

Creating a Numbering Scheme for Subnets

Begin your numbering scheme by mapping your existing IPv4 subnets into equivalent IPv6 subnets. For example, consider the subnets illustrated in Figure 3-1. Subnets 1–4 use the RFC 1918 IPv4 private address designation for the first 16 bits of their addresses, in addition to the digits 1–4 to indicate the subnet. For illustrative purposes, assume that the IPv6 prefix 2001:db8:3c4d/48 has been assigned to the site.

The following table shows how the private IPv4 prefixes map into IPv6 prefixes.

IPv4 Subnet Prefix
Equivalent IPv6 Subnet Prefix
Creating an IPv6 Addressing Plan for Nodes

For most hosts, stateless autoconfiguration of IPv6 addresses for their interfaces is an appropriate, time saving strategy. When the host receives the site prefix from the nearest router, Neighbor Discovery automatically generates IPv6 addresses for each interface on the host.

Servers need to have stable IPv6 addresses. If you do not manually configure a server's IPv6 addresses, a new IPv6 address is autoconfigured whenever a NIC card is replaced on the server. Keep the following tips in mind when you create addresses for servers:

Due to the limited number of IPv4 addresses, in the past a network designer had to consider where to use global, registered addresses and private, RFC 1918 addresses. However, the notion of global and private IPv4 addresses does not apply to IPv6 addresses. You can use global unicast addresses, which include the site prefix, on all links of the network, including the public DMZ.