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The following table describes the labels in this screen.

2.5

Summary

Use this screen to save your changes to the setup wizard’s configuration.

Click

Finish

in the

Setup Wizard: Wireless Settings

screen. The following screen

displays.

Table 7:

The Setup Wizard: Wireless Settings Screen

Primary SSID

Enter the name that you want to use for your CGN3’s

wireless network. This is the name that identifies your

network, and to which wireless clients connect.

Security Type

Use this field to apply security encryption to your

wireless network.



Select

Open

to use no wireless security. Anyone

can join the network.



Select

Encrypted

to require people who want to

access your wireless network to use a password.

Then, enter the password you want to use in the

Security Key

field that displays.

Prev

Click this to return to the previous screen.

Finish

Click this to continue to the next screen.

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Figure 10:

The Setup Wizard: Summary Screen

If you are happy with the settings, click

Save changes

. The following confirmation

message displays.

Figure 11:

The Setup Wizard: Summary Screen

NOTE:

If you changed the

Private LAN IP Address

,

Primary SSID Name

or

Wireless Secure Key

, make sure you keep a note of the new details.

Alternatively, click

Go Back

to make further changes to the wizard’s fields.

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3

Status

This chapter describes the screens that display when you click

Status

in the toolbar.

It contains the following sections:



Status Overview

on page

33



The System Information Screen

on page

40



The DOCSIS Provisioning Screen

on page

41



The DOCSIS WAN Screen

on page

42



The DOCSIS Event Screen

on page

44



The Wireless Screen

on page

45

3.1

Status Overview

This section describes some of the concepts related to the

Status

screens.

3.1.1

DOCSIS

The Data Over Cable Service Interface Specification (DOCSIS) is a

telecommunications standard that defines the provision of data services) Internet

access) over a traditional cable TV (CATV) network.

Your CGN3 supports DOCSIS version 3.0.

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3.1.2

IP Addresses and Subnets

Every computer on the Internet must have a unique Internet Protocol (IP) address.

The IP address works much like a street address, in that it identifies a specific

location to which information is transmitted. No two computers on a network can have

the same IP address.

3.1.2.1

IP Address Format

IP addresses consist of four octets (8-bit numerical values) and are usually

represented in decimal notation, for example

192.168.1.1

. In decimal notation, this

means that each octet has a minimum value of 0 and a maximum value of 255.

An IP address carries two basic pieces of information: the “network number” (the

address of the network as a whole, analogous to a street name) and the “host ID”

(analogous to a house number) which identifies the specific computer (or other

network device).

3.1.2.2

IP Address Assignment

IP addresses can come from three places:



The Internet Assigned Numbers Agency (IANA)



Your Internet Service Provider



You (or your network devices)

IANA is responsible for IP address allocation on a global scale, and your ISP assigns

IP addresses to its customers. You should never attempt to define your own IP

addresses on a public network, but you are free to do so on a private network.

In the case of the CGN3:



The public network (Wide Area Network or WAN) is the link between the cable

connector and your Internet Service Provider. Your CGN3’s IP address on this

network is assigned by your service provider.

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

The private network (in routing mode - see

Routing Mode

on page

38

) is your

Local Area Network (LAN) and Wireless Local Area Network (WLAN), if

enabled. You are free to assign IP addresses to computers on the LAN and

WLAN manually, or to allow the CGN3 to assign them automatically via DHCP

(Dynamic Host Configuration Protocol). IANA has reserved the following blocks

of IP addresses to be used for private networks only:

If you assign addresses manually, they must be within the CGN3’s LAN subnet.

3.1.2.3

Subnets

A subnet (short for sub-network) is, as the name suggests, a separate section of a

network, distinct from the main network of which it is a part. A subnet may contain all

of the computers at one corporate local office, for example, while the main network

includes several offices.

In order to define the extent of a subnet, and to differentiate it from the main network,

a subnet mask is used. This “masks” the part of the IP address that refers to the main

network, leaving the part of the IP address that refers to the sub-network.

Each subnet mask has 32 bits (binary digits), as does each IP address:



A binary value of

1

in the subnet mask indicates that the corresponding bit in the

IP address is part of the main network.



A binary value of

0

in the subnet mask indicates that the corresponding bit in the

IP address is part of the sub-network.

For example, the following table shows the IP address of a computer (

192.168.1.1

)

expressed in decimal and binary (each cell in the table indicates one octet):

Table 8:

Private IP Address Ranges

FROM...

...TO

10.0.0.0

10.255.255.255

172.16.0.0

172.31.255.255

192.168.0.0

192.168.255.255

Table 9:

IP Address: Decimal and Binary

192

168

0

1

11000000

10101000

00000000

00000001