Linksys WRV200 Router Manual PDF (Setup & Configuration Guide)

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Chapter µ

Configuring the Wireless-G Router

±¶

Wireless-G VPN Router with RangeBooster

using 64-bit WEP encryption, the key must be exactly 10

hexadecimal characters in length. If you are using 128-bit

WEP encryption, the key must be exactly 26 hexadecimal

characters in length. Valid hexadecimal characters are “0”

to “9” and “A” to “F”.

When you have finished making changes to the screen,

click

Save Settings

to save the changes, or click

Cancel

Changes

to undo your changes. For help information,

click

WEP

WEP is a basic encryption method, which is not as secure

as WPA. To indicate which WEP key to use, select the

appropriate

Default Transmit Key

number. Then, select

the level of WEP encryption,

¶´ bits (±0 hex digits)

±²8 bits (²¶ hex digits)

. Higher encryption levels offer

higher levels of security, but due to the complexity of the

encryption, they may decrease network performance.

Wireless Security - WEP

Instead of manually entering WEP keys, you can enter

a Passphrase to generate one or more WEP keys. The

Passphrase is case-sensitive and should have no more

than 32 alphanumeric characters. If you want to use

a Passphrase, enter it in the

Passphrase

field and click

Generate

If you want to enter the WEP key(s) manually, then enter

it in the

Key 1-4

field(s). (Do not leave a field blank, and do

not enter all zeroes; they are not valid key values.) If you are

using 64-bit WEP encryption, the key must be exactly 10

hexadecimal characters in length. If you are using 128-bit

WEP encryption, the key must be exactly 26 hexadecimal

characters in length. Valid hexadecimal characters are “0”

to “9” and “A” to “F”.

When you have finished making changes to the screen,

click

Save Settings

to save the changes, or click

Cancel

Changes

to undo your changes. For help information,

click

Wireless > Wireless Network Access

This screen allows you to control access to your wireless

network for each SSID.

Wireless > Wireless Network Access

Wireless Network Access

Access List

To allow the designated computers to

access your network, select

Permit to access

. To block

the designated computers from accessing your wireless

network, select

Prevent from accessing

. Click

Disabled

to disable the access function.

MAC ±-±¶

Enter the MAC addresses of the designated

computers. For a more convenient way to add MAC

addresses, click

Select MAC Address From Networked

Computers

. The

Networked Computers

screen will appear.

Select the MAC addresses you want. Then click

Select

Click

Refresh

if you want to refresh the screen. Click

to return to the previous screen.

Networked Computers

When you have finished making changes to the screen,

click

Save Settings

to save the changes, or click

Cancel

Changes

to undo your changes. For help information,

click

Page 22 / 72

Chapter µ

Configuring the Wireless-G Router

±·

Wireless-G VPN Router with RangeBooster

Wireless > Advanced Wireless Settings

This tab is used to set up the Router’s advanced wireless

functions. These settings should only be adjusted by an

advanced user as incorrect settings can reduce wireless

performance.

Advanced Wireless Settings

AP Isolation

This isolates all wireless clients and wireless

devices on your network from each other. Wireless devices

will be able to communicate with the Router but not with

each other. To use this function, click

Enabled

. AP Isolation

is disabled by default.

Basic Rate

The Basic Rate setting is not actually one rate

of transmission but a series of rates at which the Router

can transmit. The Router will advertise its Basic Rate to the

other wireless devices in your network, so they know which

rates will be used. The Router will also advertise that it will

automatically select the best rate for transmission. The

default setting is

Default

, when the Router can transmit

at all standard wireless rates (1-2Mbps, 5.5Mbps, 11Mbps,

18Mbps, and 24Mbps). Other options are

±-²Mbps

, for

use with older wireless technology, and

All

, when the

Router can transmit at all wireless rates. The Basic Rate

is not the actual rate of data transmission. If you want to

specify the Router’s rate of data transmission, configure

the Transmission Rate setting.

Transmission Power

The amount of transmission power

should be set so that the Router uses only as much

power as needed to reach the farthest device in your

wireless network. This can help prevented unwanted

eavesdropping on your wireless network. You can select

from a range of power levels, from

Full

Half

Quarter

Eighth

, or

Min

. The default setting is

Full

CTS Protection Mode

CTS (Clear-To-Send) Protection

Mode’s default setting is

Auto

. The Router will automatically

use CTS Protection Mode when your Wireless-G products

are experiencing severe problems and are not able to

transmit to the Router in an environment with heavy

802.11b traffic. This function boosts the Router’s ability

to catch all Wireless-G transmissions but will severely

decrease performance.

Beacon Interval

The default value is

±00

. Enter a value

between 1 and 65,535 milliseconds. The Beacon Interval

value indicates the frequency interval of the beacon. A

beacon is a packet broadcast by the Router to synchronize

the wireless network.

DTIM Interval

The default value is

. This value, between

1 and 255, indicates the interval of the Delivery Traffic

Indication Message (DTIM). A DTIM field is a countdown

field informing clients of the next window for listening to

broadcast and multicast messages. When the Router has

buffered broadcast or multicast messages for associated

clients, it sends the next DTIM with a DTIM Interval value.

Its clients hear the beacons and awaken to receive the

broadcast and multicast messages.

Fragmentation Threshold

In most cases, this value

should remain at its default value of

²³´¶

. It specifies the

maximum size for a packet before data is fragmented into

multiple packets. If you experience a high packet error rate,

you may slightly increase the Fragmentation Threshold.

Setting the Fragmentation Threshold too low may result

in poor network performance. Only minor reduction of

the default value is recommended.

RTS Threshold

The RTS Threshold value should remain at

its default value,

²³´·

. Should you encounter inconsistent

data flow, only minor reduction of the default value, 2347,

is recommended. If a network packet is smaller than the

preset RTS threshold size, the RTS/CTS mechanism will

not be enabled. The Router sends Request to Send (RTS)

frames to a particular receiving station and negotiates

the sending of a data frame. After receiving an RTS, the

wireless station responds with a Clear to Send (CTS) frame

to acknowledge the right to begin transmission.

When you have finished making changes to the screen,

click

Save Settings

to save the changes, or click

Cancel

Changes

to undo your changes. For help information,

click

Wireless > WDS

Page 23 / 72

Chapter µ

Configuring the Wireless-G Router

±8

Wireless-G VPN Router with RangeBooster

This tab is used for Wireless Distribution System (WDS).

WDS will ONLY work with SSID1. Make sure that the

channel and security settings are the same for all WDS

enabled devices.

WDS allows a wireless signal to be repeated by a repeater.

This mode allows a wireless client to connect to the Router

through a repeater, such as WAP54GP or WAP54GPE, when

operating in the Repeater Mode. This mode allows you to

extend the coverage of the Router by using up to three

repeaters. Select

Auto Select

to enable the remote access

point when operating in Repeater Mode or select

Manual

and enter the MAC address of the repeater.

Click the

Site Survey

button to view the available access

points.

When you have finished making changes to the screen,

click

Save Settings

to save the changes, or click

Cancel

Changes

to undo your changes. For help information,

click

Firewall

The Firewall tab is used to control access to the Internet by

users of your internal network.

Firewall > General

The Router’s firewall enhances the security of your

network. You can implement a Stateful Packet Inspection

(SPI) firewall, block anonymous Internet requests, and

enable block mechanisms.

Firewall > General

DoS Prevention

Denial of Service (DoS) Prevention

checks incoming packets before allowing them to enter

your network. To use this feature, select

Enabled

from

the drop-down menu. If you do not want DoS Prevention,

select

Disabled

Internet Block

Block Anonymous Internet Requests

This keeps your

network from being “pinged” or detected and reinforces

your network security by hiding your network ports, so it

is more difficult for intruders to work their way into your

network. Click the checkbox to block anonymous Internet

requests.

Block Multicast

Multicasting allows a transmission to

be forwarded automatically to multiple recipients at the

same time. When Block Multicast is disabled (multicasting

is permitted), the Router allows IP multicast packets to be

forwarded to the appropriate computers in the LAN. Click

the checkbox to filter out multicasting.

Web Block

Proxy

Use of WAN proxy servers may compromise the

Router’s security. Denying Filter Proxy will disable access

to any WAN proxy servers. To enable proxy filtering, click

the checkbox next to this option.

Java

Java is a programming language for websites. If you

deny Java applets, you run the risk of not having access to

Internet sites created using this programming language.

To enable Java applet filtering, click the checkbox next to

this option.

ActiveX

ActiveX is a programming language for websites.

If you deny ActiveX, you run the risk of not having access to

Internet sites created using this programming language.

To enable ActiveX filtering, click the checkbox

next to this

option.

A cookie is data stored on your PC and used

by Internet sites when you interact with them. To enable

cookie filtering, click the checkbox next to this option.

SIP Application Layer Gateway

This option allows VoIP

phones to operate behind a NAT router. To enable this

feature, select

Enable

from the drop-down menu.

When you have finished making changes to the screen,

click

Save Settings

to save the changes, or click

Cancel

Changes

to undo your changes. For help information,

click

Firewall > Port Forwarding

Page 24 / 72

Chapter µ

Configuring the Wireless-G Router

±9

Wireless-G VPN Router with RangeBooster

The

Port Forwarding

screen sets up public services on your

network, such as web servers, ftp servers, e-mail servers,

or other specialized Internet applications. (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.

Application Name

Enter the name you wish to give the

application. Each name can be up to 12 characters.

Port Range Start/End

This is the port range. Enter the

number that starts the port range under

Start

and the

number that ends the range under

End

Protocol

Enter the protocol used for this application,

either

TCP

UDP

, or

Both

IP Address

For each application, enter the IP Address of

the PC running the specific application.

Enabled

Click the

Enabled

checkbox to enable port

forwarding for the relevant application.

When you have finished making changes to the screen,

click

Save Settings

to save the changes, or click

Cancel

Changes

to undo your changes. For help information,

click

Firewall > 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.

Application

In this field, enter the name you wish to give

the application. Each name can be up to 12 characters.

Triggered Range Start Port/End Port

Enter the number

that starts the triggered port range under

Start Port

and

the number that ends the range under

End Port

Forwarded Range Start Port/End Port

Enter the number

that starts the forwarded port range under

Start Port

and

the number that ends the range under

End Port

Protocol

Enter the protocol used for this application,

either

TCP

UDP

, or

Both

Enabled

Click the

Enabled

checkbox to enable port

triggering for the relevant application.

When you have finished making changes to the screen,

click

Save Settings

to save the changes, or click

Cancel

Changes

to undo your changes. For help information,

click

Firewall > DMZ

The

DMZ

screen allows one local PC to be exposed to

the Internet for use of a special-purpose service such as

Internet gaming and videoconferencing through Software

DMZ. Whereas Port Range Forwarding can only forward a

maximum of 10 ranges of ports, DMZ hosting forwards all

the ports for one PC at the same time.

Firewall > DMZ

Software DMZ

This feature allows one local PC to be

exposed to the Internet for use of a special-purpose service

such as Internet gaming and videoconferencing. To use

this feature, select

Enabled

. To disable the Software DMZ

feature, select

Disabled

DMZ Host IP Address

To expose one PC, enter the

computer’s IP address.

When you have finished making changes to the screen,

click

Save Settings

to save the changes, or click

Cancel

Changes

to undo your changes. For help information,

click

Page 25 / 72

Chapter µ

Configuring the Wireless-G Router

²0

Wireless-G VPN Router with RangeBooster

Firewall > Access Restriction

The

Access Restriction

screen allows you to block or allow

specific kinds of Internet usage and traffic during specific

days and times.

Firewall > Access Restriction

Internet Access Policy

Access can be managed by a

policy. Use the settings on this screen to establish an

access policy (after

Save Settings

is clicked). Selecting a

policy from the drop-down menu will display that policy’s

settings. To delete a policy, select that policy’s number

and click

Delete

. To view all the policies, click

Summary

Status

Policies are disabled by default. To enable a policy,

select the policy number from the drop-down menu, and

click the radio button beside

Enable

To create an Internet Access Policy:

Select a number from the

Internet Access Policy

drop-

down menu.

To enable this policy, click the

Enable

radio button.

Enter a Policy Name in the field provided.

Decide which days and what times you want this policy

to be enforced. Select the individual days during which

the policy will be in effect. Then enter a range of hours

and minutes during which the policy will be in effect,

or select

²´ Hours

You can block access to various services accessed over

the Internet, such as FTP or telnet, by specifying the

TCP/UDP port or the protocol number.

Click

Save Settings

to save the policy settings you have

entered. Click

Cancel Changes

to cancel any changes you

have entered. For help information, click

Firewall > URL Filtering

URL filtering is used to block access to specific sites on the

Internet.

Firewall > URL Filtering

To create a URL filtering policy:

Select a number from the

URL Filtering Policy

drop-

down menu.

Enter a Policy Name in the field provided.

To enable this policy, select

Enabled

from the Status

menu.

Enter the

Start IP Address

and

End IP Address

that will

be affected by the policy. After making your changes,

click

Save Settings

to apply your changes.

In the

URL String

field, enter the URL of the Internet site

that this policy will block access to.

Click

Save Settings

to save the policy’s settings. To

cancel the policy’s settings, click

Cancel Changes

Click

Save Settings

to save the policy settings you have

entered. Click

Cancel Changes

to cancel any changes you

have entered. For help information, click

VPN

Virtual Private Networking (VPN) is a security measure

that creates a secure connection between two remote

locations. The security is created by the very specific

settings for the connection. The VPN Tab allows you to

configure your VPN settings to make your network more

secure.

VPN > VPN Client Access

The Router offers a QuickVPN Client utility for Windows

2000 or XP. If the Router has clients using this utility,

then you can designate the QuickVPN clients and their

passwords on the

VPN > VPN Client Access

screen.

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