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301

and IPv4 network. A 6to4 relay router is used to forward packets between 6to4 routers in an IPv4

Internet and an IPv6 device (

Z

) on the IPv6 Internet.

To transmit packets, a 6to4 address is used with a special IPv6 prefix of

2002::

to encode a given

IPv4 address. A 6to4 address has the following format:

2002:IPv4 address:subnet ID:host ID/64

For example, if you have an IPv4 address of 192.168.1.1 (first converted to binary notation and then to

the colon hexadecimal representation of

c0a8:0101

), then the 6to4 addresses is

2002:c0a8:0101::1/

64

.

Example - Enabling IPv6 on Windows XP/2003/Vista

By default, Windows XP and Windows 2003 support IPv6. This example shows you how to use the

ipv6 install

command on Windows XP/2003 to enable IPv6. This also displays how to use the

ipconfig

command to see auto-generated IP addresses.

IPv6 is installed and enabled by default in Windows Vista. Use the

ipconfig

command to check

your automatic configured IPv6 address as well. You should see at least one IPv6 address available

for the interface on your computer.

Example - Enabling DHCPv6 on Windows XP

Windows XP does not support DHCPv6. If your network uses DHCPv6 for IP address assignment,

you have to additionally install a DHCPv6 client software on your Windows XP. (Note: If you use

static IP addresses or Router Advertisement for IPv6 address assignment in your network, ignore

this section.)

This example uses Dibbler as the DHCPv6 client. To enable DHCPv6 client on your computer:

1

Install Dibbler and select the DHCPv6 client option on your computer.

C:\>ipv6 install

Installing...

Succeeded.

C:\>ipconfig

Windows IP Configuration

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix

. :

IP Address. . . . . . . . . . . . : 10.1.1.46

Subnet Mask . . . . . . . . . . . : 255.255.255.0

IP Address. . . . . . . . . . . . : fe80::2d0:59ff:feb8:103c%4

Default Gateway . . . . . . . . . : 10.1.1.254

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2

After the installation is complete, select

Start

>

All Programs

>

Dibbler-DHCPv6

>

Client

Install as service

.

3

Select

Start

>

Control Panel

>

Administrative Tools

>

Services

.

4

Double click

Dibbler - a DHCPv6 client

.

5

Click

Start

and then

OK

.

6

Now your computer can obtain an IPv6 address from a DHCPv6 server.

Example - Enabling IPv6 on Windows 7

Windows 7 supports IPv6 by default. DHCPv6 is also enabled when you enable IPv6 on a Windows 7

computer.

To enable IPv6 in Windows 7:

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1

Select

Control Panel

>

Network and Sharing Center

>

Local Area Connection

.

2

Select the

Internet Protocol Version 6 (TCP/IPv6)

checkbox to enable it.

3

Click

OK

to save the change.

4

Click

Close

to exit the

Local Area Connection Status

screen.

5

Select

Start

>

All Programs

>

Accessories

>

Command Prompt

.

6

Use the

ipconfig

command to check your dynamic IPv6 address. This example shows a global

address (2001:b021:2d::1000) obtained from a DHCP server.

C:\>ipconfig

Windows IP Configuration

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix

. :

IPv6 Address. . . . . . . . . . . : 2001:b021:2d::1000

Link-local IPv6 Address . . . . . : fe80::25d8:dcab:c80a:5189%11

IPv4 Address. . . . . . . . . . . : 172.16.100.61

Subnet Mask . . . . . . . . . . . : 255.255.255.0

Default Gateway . . . . . . . . . : fe80::213:49ff:feaa:7125%11

172.16.100.254

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A

PPENDIX

F

Services

The following table lists some commonly-used services and their associated protocols and port

numbers.

•

Name

: This is a short, descriptive name for the service. You can use this one or create a

different one, if you like.

•

Protocol

: This is the type of IP protocol used by the service. If this is

TCP/UDP

, then the service

uses the same port number with TCP and UDP. If this is

USER-DEFINED

, the

Port(s

) is the IP

protocol number, not the port number.

•

Port(s)

: This value depends on the

Protocol

.

•

If the

Protocol

is

TCP

,

UDP

, or

TCP/UDP

, this is the IP port number.

•

If the

Protocol

is

USER

, this is the IP protocol number.

•

Description

: This is a brief explanation of the applications that use this service or the situations

in which this service is used.