Wireless Cable Voice Gateway Model CVG824G Reference Manual

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Wireless Configuration

v1.0, November 2006

Protecting Your Network

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BETA, November 2006

Chapter 3

Protecting Your Network

This chapter describes how to use the firewall features of the gateway to protect your network.

Changing the Default Password

For security reasons, the gateway has its own user name and password. After a period of inactivity

for a set length of time, the administrator login automatically disconnects. When prompted, enter

admin

for the gateway user name and

password

for the gateway password. You can change the

password and the amount of time for the administrator login timeout.

NETGEAR recommends that you change this password to a more secure password. The ideal

password should contain no dictionary words from any language, and should be a mixture of both

upper and lower case letters, numbers, and symbols. Your password can be up to 30 characters.

To change the default password:

1.

Log in to the gateway by entering the default LAN address of

with its

default user name of

admin

, default password of

password

, or using whatever password and

LAN address you have chosen for the gateway.

Note:

The user name and password are not the same as any user name or password your

may use to log in to your Internet connection.

Figure 3-1

Wireless Cable Voice Gateway Model CVG824G Reference Manual

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Protecting Your Network

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2.

From the Maintenance menu, select Set Password. The following dialog box appears:

3.

To change the password, first enter the old password, and then enter the new password twice.

4.

Click

Apply

to save your changes.

Blocking Keywords, Sites and Services

The gateway provides a variety of options for blocking Internet content and communications to the

gateway. You can control access to Internet content by screening for keywords within Web

addresses; you also can block access to all sites except those that are explicitly allowed. Blocking

options include:

•

Blocking access from your LAN to Internet locations that contain keywords that your specify.

•

Blocking access to Web sites (domains) that you specify as off-limits.

•

Allowing access to only Web sites (domains) that you specify as allowed.

You can also block access to the Internet by a specific computer based on the hardware MAC

address of that computer. Blocking access to the Internet based on the hardware MAC address of

the computer or wireless adapter is described in

“Using MAC Filtering to Block Access” on

page 3-4

.

To configure any of the parental controls, you must be logged in as a parent.

Figure 3-2

Note:

After changing the password, you will be required to log in again to continue

the configuration. If you have backed up the gateway settings previously, you

should do a new backup so that the saved settings file includes the new

password.

Wireless Cable Voice Gateway Model CVG824G Reference Manual

Protecting Your Network

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v1.0, November 2006

Blocking Keywords and Domains

You can restrict access to Internet content based on Web address keywords and domain names. A

domain name is the name of a particular Web site. For example, for the address www.netgear.com,

the domain name is NETGEAR.com.

To configure Block Sites:

1.

Log in to the gateway by entering the default LAN address of

the parent

user name of

superuser

, and default password of

password

; or use whatever password and

LAN address you have chosen for the gateway in parent mode.

2.

On the Content Filtering menu, click Block Sites.

3.

Enable Keyword Blocking or Domain Blocking by checking the appropriate Enable box.

4.

Add keywords by entering them into the Add Keyword List. An example of some Keyword

applications are:

Note:

To configure Block Sites, you must be logged in as a parent.

Figure 3-3

Wireless Cable Voice Gateway Model CVG824G Reference Manual

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Protecting Your Network

1.0, November 2006

•

If the keyword “XXX” is specified, the URL “http://www.badstuff.com/xxx.html” is

blocked.

•

If the keyword “.com” is specified, only Web sites with other domain suffixes (such as

.edu or .gov) can be viewed.

•

If the keyword “.” is specified, all Internet browsing access is blocked.

Up to eight entries are supported in the Keyword List.

5.

When you have completed your entries, click

Add Keyword.

To enable Domain Blocking:

1.

Check the Enable radio box adjacent to Domain Blocking.

2.

Enter the Domain Name of the site name you want to block in the Add Domain List field.

If the domain “badstuff.com” is specified, the URL “http://www.badstuff.com/xxx.html” will

be blocked, along with all other URLs in the badstuff.com site.

Up to eight entries are supported in the Domain Blocking list.

3.

When you have completed your entries, click

Add Domain

.

4.

Click

Apply

to save your settings

To delete a an entry in either the Keyword List or Domain List field:

1.

Select it from the list, and click

Remove Keyword

or

Remove Domain

.

2.

Click

Apply

to save your settings.

Using MAC Filtering to Block Access

By default, any computer has access to the Internet through your gateway. MAC Filtering allows

you to block access to the Internet to any computer on your LAN based on the hardware MAC

address of its Ethernet or wireless adapter.

To implement MAC Filtering:

1.

Log in to the gateway at its default LAN address by entering

, the parent

user name

superuser

, and default password of

password

; or use whatever password and LAN

address you have chosen for the gateway in parent mode.

Note:

To configure MAC Filtering, you must be logged in as a parent.