Linksys WRT54Gv3 Router Manual PDF (Setup & Configuration Guide)

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Wireless-G Broadband Router

5. Click the

Apply

button to save your changes. Click the

Cancel

button to

cancel your unsaved changes. Click the

Close

button to return to the

Filters

screen.

6.

If you want to block the listed PCs from Internet access during the desig-

nated days and time, then keep the default setting,

Disable Internet Access

for Listed PCs

. If you want to allow the listed PCs to have Internet access

during the designated days and time, then click the radio button next to

Enable Internet Access for Listed PCs

.

7.

If you want to block websites with specific URL addresses, enter each URL

address in a

Website Blocking by URL Address

field. You can enter up to

four URL addresses.

8.

If you want to block websites that use specific keywords as part of their

URL addresses, enter each keyword in a

Website Blocking by Keyword

field. You can enter up to six keywords.

9.

Set the days when access will be filtered. Select

Everyday

or the appropri-

ate days of the week.

10. Set the time when access will be filtered. Select

24 Hours

, or check the box

next to

From

and use the drop-down boxes to designate a specific time

period.

11. Click the

Save Policy

button to save your changes and activate the Policy.

Click the

Cancel

button to cancel your unsaved changes.

12. To create or edit additional policies, repeat steps 1-11.

Delete

To delete an Internet Access Policy, select the policy’s number, and

click the

Delete

button.

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Internet Schedule Profile

This feature allows you to customize up to ten dif-

ferent Internet Access Policies for particular PCs, which are identified by their

IP or MAC addresses. For each policy’s designated PCs, during the days and

time specified, the Router can do one or more of the following:

•

block or allow Internet access

•

block websites with specific URL addresses

•

block websites that use specific keywords in their URL addresses.

To create or edit a policy, follow these instructions:

Then follow these instructions:

1.

Select the policy’s number (1-10) in the drop-down menu.

2.

Enter a name in the

Enter Profile Name

field.

3. Click the

Edit List of PCs

button.

4. On the

List of PCs

screen, specify PCs by IP address or MAC address.

Enter the appropriate IP addresses into the

IP

fields. If you have a range of

IP addresses to filter, complete the appropriate

IP Range

fields. Enter the

appropriate MAC addresses into the

MAC

fields.

54

Figure 6-21

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The

Port Forwarding

screen sets up public services on your network, such as

web servers, ftp servers, e-mail servers, or other specialized Internet applica-

tions. (Specialized Internet applications are any applications that use Internet

access to perform functions such as videoconferencing or online gaming. Some

Internet applications may not require any forwarding.)

When users send this type of request to your network via the Internet, the

Router will forward those requests to the appropriate PC. Any PC whose port

is being forwarded must have its DHCP client function disabled and must have

a new static IP address assigned to it because its IP address may change when

using the DHCP function.

Port Forwarding

Figure 6-23

Note:

For each

MAC

field, the MAC address should be entered in this

format: xx:xx:xx:xx:xx:xx (the x's represent the actual characters of

the MAC address).

Summary

To see a summary of all the policies, click the

Summary

button.

The

Internet Policy Summary

screen will show each policy’s Number, Policy

Name, Days, and Time of Day. To delete a policy, click its box, and then click

the

Delete

button. Click the

Close

button to return to the

Filters

screen.

Filtered Internet Port Range

To filter users by network port number, select

Both

,

TCP

, or

UDP

, depending on which protocols you want to filter. Then

enter the port numbers you want to filter into the port number fields. PCs con-

nected to the Router will no longer be able to access any port number listed

here. To disable a filter, select

Disable

.

To save your changes on this page, click the

Apply

button. To cancel any

unsaved changes on this page, click the

Cancel

button. To get more information

about the features, click the

Help

button.

Figure 6-22

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Port Triggering

Port Triggering is used for special Internet applications whose

outgoing ports differ from the incoming ports. For this feature, the Router will

watch outgoing data for specific port numbers. The Router will remember the

IP address of the computer that sends a transmission requesting data, so that

when the requested data returns through the Router, the data is pulled back to

the proper computer by way of IP address and port mapping rules. Click the

Port Triggering

button to set up triggered ports, and follow these instructions:

1.

Enter the Application Name of the trigger (see Figure 6-24).

2. Enter the Outgoing Port Range used by the application. Check with the

Internet application for the port number(s) needed.

3.

Enter the Incoming Port Range used by the application. Check with the

Internet application for the port number(s) needed.

4.

Click the

Apply

button to save your changes. Click the

Cancel

button to

cancel your unsaved changes. Click the

Close

button to return to the

Port

Forwarding

screen.

To save your changes on this page, click the

Apply

button. To cancel any

unsaved changes on this page, click the

Cancel

button. To get more information

about the features, click the

Help

button.

Figure 6-24

The following table shows the typical port forwarding settings for common

Internet applications.

Customized Applications

In the

field provided, enter the name you wish to

give each application.

External Port

For each application, enter the number of the External Ports

(the port numbers seen by users on the Internet) in the appropriate fields. (To

find out the port range, check your application's documentation.) If there is

only one External Port, enter its number in both External Port fields.

TCP Protocol

Click this checkbox if you want to forward the data transmis-

sions that use the TCP protocol.

UDP Protocol

Click this checkbox if you want to forward the data transmis-

sions that use the UDP protocol.

IP Address

For each application, enter the IP Address of the PC running the

specific application.

Enable

Click the Enable checkbox to enable port forwarding for the relevant

application.

Application

FTP

Telnet

SMTP

DNS

TFTP

Finger

HTTP

POP3

NNTP

SNMP

External Port

21

23

25

53

69

79

80

110

119

116

TCP

•

UDP

•

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the feature for both the WAN and LAN (including wireless), select

Both

. To

disable the Dynamic Routing feature for all data transmissions, keep the default

setting,

Disable

. (This feature is not available in Gateway mode.)

Static Routing

A static route is a pre-determined pathway that network infor-

mation must travel to reach a specific host or network. To set up a static route

between the Router and another network, follow these instructions:

1.

Select a number from the

Static Routing

drop-down list.

2. Enter the following data:

•

Destination IP Address -

The Destination IP Address is the address of

the network or host to which you want to assign a static route.

•

Subnet Mask -

The Subnet Mask determines which portion of a

Destination LAN IP address is the network portion, and which portion

is the host portion.

•

Gateway -

This is the IP address of the gateway device that allows for

contact between the Router and the network or host.

3.

Depending on where the Destination IP Address is located, select

LAN &

Wireless

or

WAN

from the

Interface

drop-down menu.

4.

To save your changes, click the

Apply

button. To cancel your changes,

click the

Cancel

button.

5.

For additional static routes, repeat steps 1-4.

Delete This Entry

To delete a static route entry, follow these instructions:

1.

From the

Static Routing

drop-down list, select the entry number of the stat-

ic route.

2.

Click the

Delete This Entry

button.

3.

To save a deletion, click the

Apply

button. To cancel an unsaved deletion,

click the

Cancel

button.

On the

Routing

screen, you can set the routing mode of the Router. Gateway

mode is recommended for most users.

Operating Mode

Choose the correct working mode. Keep the default setting,

Gateway

, if the Router is hosting your network’s connection to the Internet

(recommended for most users). Select

Router

if the Router exists on a network

with other routers.

Dynamic Routing (RIP)

Dynamic Routing enables the Router to automati-

cally adjust to physical changes in the network’s layout and exchange routing

tables with other routers. The Router determines the network packets’ route

based on the fewest number of hops between the source and destination. To

enable the Dynamic Routing feature for the WAN side, select

WAN

. To enable

this feature for the LAN and wireless side, select

LAN & Wireless

. To enable

Routing

Figure 6-25

Note:

The

Routing

screen and available features will vary depending

on which mode you select.

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The Router offers a Dynamic Domain Name System (DDNS) feature. DDNS

lets you assign a fixed host and domain name to a dynamic Internet IP address.

It is useful when you are hosting your own website, FTP server, or other serv-

er behind the Router. Before you can use this feature, you need to sign up for

DDNS service at

www.dyndns.org

, a DDNS service provider.

DDNS Service

To disable DDNS Service, keep the default setting,

Disable

. To

enable DDNS Service, follow these instructions:

1.

Sign up for DDNS service at

www.dyndns.org

, and write down your User

Name, Password, and Host Name information.

2.

On the

DDNS

screen, select

Enable

.

3.

Complete the

User Name

,

Password

, and

Host Name

fields.

4.

To save your new settings, click the

Apply

button. To cancel your changes,

click the

Cancel

button.

DDNS

Figure 6-27

Show Routing Table

Click the

Show Routing Table

button to view all of the

valid dynamic and static route entries in use (see Figure 6-26). The Destination

IP address, Subnet Mask, Gateway, and Interface information are displayed for

each entry. Click the

Refresh

button to display the most up-to-date data. Click

the

Close

button to return to the

Routing

screen.

•

Destination IP Address

- The Destination IP Address is the address of

the network or host to which the static route is assigned.

•

Subnet Mask

- The Subnet Mask determines which portion of a

Destination LAN IP address is the network portion, and which portion

is the host portion.

•

Gateway

- This is the IP address of the gateway device that allows for

contact between the Router and the network or host.

•

Interface

- This interface tells you whether the Destination IP Address

is on the

LAN & Wireless

(internal wired and wireless networks), the

WAN

(Internet), or

Loopback

(a dummy network in which one PC

acts like a network-necessary for certain software programs).

To save your changes on this page, click the

Apply

button. To cancel any

unsaved changes on this page, click the

Cancel

button. To get more information

about the features, click the

Help

button.

Figure 6-26

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