NETGEAR RangeMax™ NEXT Wireless Router WNR834B User Manual

4-2

Restricting Access From Your Network

v1.2, January 2007

—

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

.org, or .gov) can be viewed.

To block access to Internet sites:

•

From the main menu of the browser interface, under Content Filtering, click Block Sites.

—

To enable keyword blocking, select either Per Schedule or Always, then click Apply. To

block by schedule, be sure to specify a time period in the Schedule menu. For scheduling,

see

“Scheduling Blocking” on page 4-5

.

—

To add a keyword or domain, type it in the Keyword box, click Add Keyword, then click

Apply.

—

To delete a keyword or domain, select it from the list, click Delete Keyword, then click

Apply.

—

To block all Internet browsing access during a scheduled period, enter a dot (

.

) as the

keyword and set the schedule in the Schedule menu.

Figure 4-1

NETGEAR RangeMax™ NEXT Wireless Router WNR834B User Manual

Restricting Access From Your Network

4-3

v1.2, January 2007

You may specify one Trusted User, which is a computer that is exempt from blocking and logging.

Since the Trusted User is identified by IP address, you should configure that computer with a fixed

IP address.

—

To specify a Trusted User, enter that computer’s IP address in the Trusted User box and

click Apply.

Blocking Access to Internet Services

The WNR834B router allows you to block the use of certain Internet services by computers on

your network. This is called service blocking or port filtering. Services are functions performed by

server computers at the request of client computers. For example, Web servers serve Web pages,

time servers serve time and date information, and game hosts serve data about other players’

moves. When a computer on your network sends a request for service to a server computer on the

Internet, the requested service is identified by a service or port number. This number appears as the

destination port number in the transmitted IP packets. For example, a packet that is sent with

destination port number 80 is an HTTP (Web server) request.

To block access to Internet Services:

•

From the main menu of the browser interface, under Content Filtering, click Block Services.

—

To enable service blocking, select either Per Schedule or Always, then click Apply. To

block by schedule, be sure to specify a time period in the Schedule menu. For scheduling,

see

“Scheduling Blocking” on page 4-5

.

Figure 4-2

NETGEAR RangeMax™ NEXT Wireless Router WNR834B User Manual

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Restricting Access From Your Network

v1.2, January 2007

—

To specify a service for blocking, click Add. The Block Services Setup menu appears.

—

From the Service Type list, select the application or service to be allowed or blocked. The

list already displays several common services, but you are not limited to these choices. To

add any additional services or applications that do not already appear, select User Defined.

Configuring a User Defined Service

To define a service, first you must determine which port number or range of numbers is used by

the application. The service port numbers for many common protocols are defined by the Internet

Engineering Task Force (IETF) and published in RFC1700, “Assigned Numbers.” Service

numbers for other applications are typically chosen from the range 1024 to 65535 by the authors of

the application. Port number information can often be determined by contacting the publisher of

the application, by asking user groups or newsgroups, or by searching.

—

Enter the Starting Port and Ending Port numbers. If the application uses a single port

number, enter that number in both boxes.

—

If you know that the application uses either TCP or UDP, select the appropriate protocol. If

you are not sure, select Both.

Blocking Services by IP Address Range

Under the heading Filter Services For, you can block the specified service for a single computer, a

range of computers (having consecutive IP addresses), or all computers on your network.

Figure 4-3

NETGEAR RangeMax™ NEXT Wireless Router WNR834B User Manual

Restricting Access From Your Network

4-5

v1.2, January 2007

Scheduling Blocking

The WNR834B router allows you to specify when blocking is enforced. To schedule blocking:

•

From the main menu of the browser interface, under Content Filtering, click Schedule.:

Configure the schedule for blocking keywords and services.

•

Days to Block

Select days to block by checking the appropriate boxes. Select Every Day to select the

checkboxes for all days. Click Apply.

•

Time of Day to Block

Select a start and end time in 24-hour format. Select All Day for 24-hour blocking. Click

Apply.

Be sure to select your Time Zone in the Email menu as described in

“Setting the Time” on

page 4-8

.

Figure 4-4

NETGEAR RangeMax™ NEXT Wireless Router WNR834B User Manual

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Restricting Access From Your Network

v1.2, January 2007

Viewing Logs of Web Access or Attempted Web Access

The log is a detailed record of the Web sites you have accessed or attempted to access. Up to 128

entries are stored in the log. Log entries only appear when keyword blocking is enabled, and no log

entries are made for the Trusted User.

•

From the main menu of the browser interface, under Content Filtering, click Logs.

Table 4-1

describes the log entries.

Figure 4-5

Table 4-1.

Log entry descriptions

Field

Description

Date and Time

The date and time the log entry was recorded.

Source IP

The IP address of the initiating device for this log entry.

Target address

The name or IP address of the Web site or newsgroup visited or

attempted to access.

Action

Whether the access was blocked or allowed.