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Wireless Cable Voice Gateway Model CVG834G Reference Manual
2-14
Wireless Configuration
v2.0, November 2007
Page 37 / 80
Protecting Your Network
3-1
v2.0, November 2007
Chapter 3
Protecting Your Network
This chapter describes how to control access to your gateway and 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. The administrator user
name is
admin
, with the default password of
password
. After a period of inactivity for a set length
of time, the administrator login automatically disconnects. You can change the password, and you
can change 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
Page 38 / 80
Wireless Cable Voice Gateway Model CVG834G Reference Manual
3-2
Protecting Your Network
v2.0, November 2007
2.
Under the Maintenance heading, select Set Password. The Set Password screen 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.
Logs
A log is a detailed record of the denial of service (DoS) attacks directed at your network. You can
view the logs here, or you can use e-mail notification to view the logs (see
“Viewing and Emailing
Event Logs” in Chapter 4
).
From the main menu, under the Content Filtering heading, select Logs. The Logs screen
appears:
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.
Figure 3-3
Page 39 / 80
Wireless Cable Voice Gateway Model CVG834G Reference Manual
Protecting Your Network
3-3
v2.0, November 2007
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 3-6
.
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 default
user name of
admin
, and default password of
password
or use whatever password and LAN
address you have chosen for the gateway.
Page 40 / 80
Wireless Cable Voice Gateway Model CVG834G Reference Manual
3-4
Protecting Your Network
v2.0, November 2007
2.
Click Block Sites under the Content Filtering heading on the main menu.
Keywords
To enable keyword blocking:
1.
On the Block Sites screen, select the
Enable
check box in the Keyword section.
2.
Add keywords by entering them into the Add Keyword List. An example of some Keyword
applications are:
•
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.
3.
When you have completed your entries, click
Add Keyword
.
Figure 3-4

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