Linksys WRT100 Router Manual PDF (Setup & Configuration Guide)

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Chapter±3

Advanced Configuration

²2

RangePlus W±reless Router

Click

Save Sett±ngs

to apply your changes, or click

Cancel

Changes

to cancel your changes.

Wireless > Wireless MAC Filter

Wireless access can be filtered by using the MAC addresses of

the wireless devices transmitting within your network’s radius.

Wireless > Wireless MAC Filter

Wireless MAC Filter

Enabled/D±sabled

To filter wireless users by MAC Address,

either permitting or blocking access, select

Enabled

. If you

do not wish to filter users by MAC Address, keep the default

setting,

D±sabled

Access Restriction

Prevent

Select this

to block wireless access by MAC

Address. This button is selected by default.

Perm±t

Select this to allow wireless access by MAC

Address. This button is not selected by default.

MAC Address Filter List

W±reless Cl±ent L±st

Click this to open the

Wireless Client

List

screen.

Wireless Client List

This screen shows computers and other devices on

the wireless network. The list can be sorted by Client

Name, Interface, IP Address, MAC Address, and Status.

Select

Save to MAC Address F±lter L±st

for any device

you want to add to the MAC Address Filter List. Then

click

Add

To retrieve the most up-to-date information, click

Refresh

. To exit this screen and return to the

Wireless

MAC Filter

screen, click

MAC ²-50

Enter the MAC addresses of the devices whose

wireless access you want to block or allow.

Click

Save Sett±ngs

to apply your changes, or click

Cancel

Changes

to cancel your changes.

Wireless > Advanced Wireless Settings

This

Advanced Wireless Settings

screen is used to set up

the Router’s advanced wireless functions. These settings

should only be adjusted by an expert administrator as

incorrect settings can reduce wireless performance.

Wireless > Advanced Wireless Settings

Page 17 / 37

Chapter±3

Advanced Configuration

²3

RangePlus W±reless Router

Advanced Wireless

AP Isolat±on

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, select

Enabled

. AP

Isolation is disabled by default.

Frame Burst

Enabling this option should provide your

network with greater performance, depending on the

manufacturer of your wireless products. To use this option,

keep the default,

Enabled

. Otherwise, select

D±sabled

Authent±cat±on Type

The default is set to

Auto

, which

allows either Open System or Shared Key authentication

to be used. With Open System authentication, the sender

and the recipient do NOT use a WEP key for authentication.

With Shared Key authentication, the sender and recipient

use a WEP key for authentication. Select

Shared Key

only use Shared Key authentication.

Bas±c 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

²-2Mbps

, 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.

Transm±ss±on Rate

The rate of data transmission should

be set depending on the speed of your wireless network.

You can select from a range of transmission speeds, or you

can select

Auto

to have the Router automatically use the

fastest possible data rate and enable the Auto-Fallback

feature. Auto-Fallback will negotiate the best possible

connection speed between the Router and a wireless

client. The default is

Auto

N Transm±ss±on Rate

The rate of data transmission

should be set depending on the speed of your Wireless-N

networking. You can select from a range of transmission

speeds, or you can select

Auto

to have the Router

automatically use the fastest possible data rate and enable

the Auto-Fallback feature. Auto-Fallback will negotiate the

best possible connection speed between the Router and a

wireless client. The default is

Auto

CTS Protect±on Mode

The Router will automatically

use CTS (Clear-To-Send) Protection Mode when your

Wireless-N and 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-

N and Wireless-G transmissions but will severely decrease

performance. The default is

Auto

Beacon Interval

Enter a value between 20 and 999

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. The default value is

²00

DTIM Interval

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. The default value is

Fragmentat±on

Threshold

This

value

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. In most

cases, it should remain at its default value of

2346

RTS Threshold

Should you encounter inconsistent data

flow, only minor reduction of the default value,

234³

, 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. The RTS

Threshold value should remain at its default value of

234³

Click

Save Sett±ngs

to apply your changes, or click

Cancel

Changes

to cancel your changes.

Security > Firewall

The

Firewall

screen is used to configure a firewall that can

filter out various types of unwanted traffic on the Router’s

local network.

Page 18 / 37

Chapter±3

Advanced Configuration

²4

RangePlus W±reless Router

Security > Firewall

Firewall

SPI F±rewall Protect±on

To use firewall protection,

keep the default selection,

Enabled

. To turn off firewall

protection, select

D±sabled

Internet Filter

F±lter

Anonymous

Internet

Requests

This

feature

makes it more difficult for outside users to work their

way into your network. This feature is selected

by default.

Deselect the feature to allow anonymous Internet

requests

F±lter

Mult±cast

Multicasting

allows

for

multiple

transmissions to specific recipients at the same time. If

multicasting is permitted, then the Router will allow IP

multicast packets to be forwarded to the appropriate

computers. Select this feature to filter multicasting. This

feature is not selected by default.

F±lter Internet NAT Red±rect±on

This feature uses port

forwarding to block access to local servers from local

networked computers. Select this feature to filter Internet

NAT redirection. It is not selected by default.

F±lter IDENT (Port ²²3)

This feature keeps port 113 from

being scanned by devices outside of your local network.

This feature is selected by default. Deselect this feature to

disable it.

Web Filter

Proxy

Use of WAN proxy servers may compromise the

Gateway’s security. Denying Proxy will disable access to

any WAN proxy servers. Select this feature to enable proxy

filtering. Deselect the feature to allow proxy access

Java

Java is a programming language for websites. If you

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

sites created using this programming language. Select

this feature to enable Java filtering. Deselect the feature

to allow Java usage

Act±veX

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.

Select this feature to enable ActiveX filtering. Deselect the

feature to allow ActiveX usage

Cook±es

A cookie is data stored on your computer and

used by Internet sites when you interact with them. Select

this feature to filter cookies. Deselect the feature to allow

cookie usage

Click

Save Sett±ngs

to apply your changes, or click

Cancel

Changes

to cancel your changes.

Security > VPN Passthrough

The

VPN Passthrough

screen allows you to enable VPN

tunnels using IPSec, PPTP, or L2TP protocols to pass through

the Router’s firewall.

Security > VPN Passthrough

VPN Passthrough

IPSec Passthrough

Internet Protocol Security (IPSec) is

a suite of protocols used to implement secure exchange

of packets at the IP layer. To allow IPSec tunnels to pass

through the Router, keep the default,

Enabled

PPTP Passthrough

Point-to-Point Tunneling Protocol

(PPTP) allows the Point-to-Point Protocol (PPP) to be

tunneled through an IP network. To allow PPTP tunnels to

pass through the Router, keep the default,

Enabled

L2TP Passthrough

Layer 2 Tunneling Protocol is the

method used to enable Point-to-Point sessions via the

Internet on the Layer 2 level. To allow L2TP tunnels to pass

through the Router, keep the default,

Enabled

Click

Save Sett±ngs

to apply your changes, or click

Cancel

Changes

to cancel your changes.

Access Restrictions > Internet Access Policy

The

Internet Access Policy

screen allows you to block or

allow specific kinds of Internet usage and traffic, such as

Internet access, designated services, and websites during

specific days and times.

Page 19 / 37

Chapter±3

Advanced Configuration

²5

RangePlus W±reless Router

Access Restrictions > Internet Access Policy

Internet Access Policy

Access Pol±cy

Access can be managed by a policy. Use the

settings on this screen to establish an access policy (after

Save Sett±ngs

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 Th±s

Pol±cy

. To view all the policies, click

Summary

The policies are listed with the following information: No.,

Policy Name, Access, Days, Time, and status (Enabled). To

enable a policy, select

Enabled

. To delete a policy, click

Delete

. Click

Save Sett±ngs

to save your changes, or click

Cancel Changes

to cancel your changes. To return to the

Internet Access Policy

screen, click

Summary

Status

Policies are disabled by default. To enable a policy,

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

select

Enabled

To create a policy, follow steps 1-11. Repeat these steps to

create additional policies, one at a time.

Select a number from the

Access Policy

drop-down

menu.

Enter a Policy Name in the field provided.

To enable this policy, select

Enabled

Click

Ed±t L±st

to select which PCs will be affected by

the policy. The

List of PCs

screen appears. You can

select a PC by MAC address or IP address. You can also

enter a range of IP addresses if you want this policy to

affect a group of PCs. After making your changes, click

Save Sett±ngs

to apply your changes, or click

Cancel

Changes

to cancel your changes. Then click

List of PCs

Select

the

appropriate

option,

Deny

Allow

depending on whether you want to block or allow

Internet access for the PCs you listed on the

List of PCs

screen.

Page 20 / 37

Chapter±3

Advanced Configuration

²6

RangePlus W±reless Router

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, or select

Everyday

. Then

enter a range of hours and minutes during which the

policy will be in effect, or select

24 Hours

You can block websites with specific URL addresses.

Enter each URL in a separate

Website Blocking by URL

Address

field.

You can also block websites using specific keywords.

Enter each keyword in a separate

Website Blocking by

Keyword

field.

You can filter access to various services accessed

over the Internet, such as FTP or telnet. (You

can block up to three applications per policy.)

From the Applications list, select the application you

want to block. Then click the

button to move it to

the Blocked List. To remove an application from the

Blocked List, select it and click the

button.

If the application you want to block is not listed

or you want to edit a service’s settings, enter the

application’s name in the

Application Name

field. Enter

its range in the

Port Range

fields. Select its protocol

from the

Protocol

drop-down menu. Then click

Add

modify

service,

select

from

the

Application

list.

Change

its

name,

port

range,

and/or protocol setting. Then click

Mod±fy

To delete a service, select it from the Application list.

Then click

Delete

Click

Save Sett±ngs

to save the policy’s settings. To

cancel the policy’s settings, click

Cancel Changes

Applications and Gaming > Single Port

Forwarding

The

Single Port Forwarding

screen allows you to customize

port services for common applications on this screen.

When users send these types of requests to your network via

the Internet, the Router will forward those requests to the

appropriate servers (computers). Before using forwarding,

you should assign static IP addresses to the designated

servers (use the DHCP Reservation feature on the

Basic Setup

screen).

10.

11.

Applications and Gaming > Single Port Forwarding

Single Port Forwarding

Common applications are available for the first five

entries. Select the appropriate application. Then enter the

IP address of the server that should receive these requests.

Select

Enabled

to activate this entry.

For additional applications, complete the following fields:

Appl±cat±on Name

Enter the name you wish to give the

application. Each name can be up to 12 characters.

External Port

Enter the external port number used

by the server or application on the Internet. Check

with the Internet application documentation for more

information.

Internal Port

Enter the internal port number used by the

server or application on the Local Area Network (LAN).

Check with the Internet application documentation for

more information.

Protocol

Select the protocol used for this application,

either

TCP

UDP

, or

Both

To IP Address

For each application, enter the IP address

of the PC that should receive the requests. If you assigned

a static IP address to the PC, then you can click

DHCP

Reservat±on

on the

Basic Setup

screen to look up its static

IP address.

Enabled

For each application, select

Enabled

to enable

port forwarding.

Click

Save Sett±ngs

to apply your changes, or click

Cancel

Changes

to cancel your changes.

Applications and Gaming > Port Range

Forwarding

The

Port Range Forwarding

screen allows you to set up

public services on your network, such as web servers,

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