Linksys WRT610N Router Manual PDF (Setup & Configuration Guide)

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Chapter 3

Advanced Configuration

Simultaneous Dual-N Band Wireless Router

Wireless > Wireless Security

The Wireless Security settings configure the security of

your wireless network. There are six wireless security

mode options supported by the Router: WPA Personal,

WPA Enterprise, WPA2 Personal, WPA2 Enterprise, RADIUS,

and WEP. (WPA stands for Wi-Fi Protected Access, which

is a security standard stronger than WEP encryption. WEP

stands for Wired Equivalent Privacy, while RADIUS stands

for Remote Authentication Dial-In User Service.) These

six are briefly discussed here. For detailed information

on setting up wireless security networks, refer to

“Chapter 2: Wireless Security.”

Wireless Security

Security Mode

Select the security method for your wireless network. If

you do not want to use wireless security, keep the default,

Disabled

WPA Personal

NOTE:

If you are using WPA or WPA2, each

device in your wireless network MUST use the

same WPA or WPA2 method and shared key, or

else the network will not function properly.

WPA Personal

Encryption

WPA supports two encryption methods, TKIP

and AES, with dynamic encryption keys. Select the type of

algorithm,

TKIP

AES

The default is

TKIP

Passphrase

Enter a passphrase of 8-63 characters.

Key Renewal

Enter a Key Renewal period, which instructs

the Router how often it should change the encryption

keys. The default Key Renewal period is

3600

seconds.

WPA Enterprise

This option features WPA used in coordination with a

RADIUS server. (This should only be used when a RADIUS

server is connected to the Router.)

WPA Enterprise

Encryption

WPA supports two encryption methods, TKIP

and AES, with dynamic encryption keys. Select the type of

algorithm,

TKIP

AES

. The default is

TKIP

RADIUS Server

Enter the IP Address of the RADIUS

server.

RADIUS Port

Enter the port number of the RADIUS

server. The default value is

1812

Shared Key

Enter the key shared between the Router

and the server.

Key Renewal

Enter a Key Renewal period, which instructs

the Router how often it should change the encryption

keys. The default Key Renewal period is

3600

seconds.

WPA2 Personal

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Chapter 3

Advanced Configuration

Simultaneous Dual-N Band Wireless Router

Encryption

WPA2 supports two encryption methods

with dynamic encryption keys; AES or WPA-TKIP/WPA2-

AES. You must select

WPA-TKIP

WPA2-AES

to connect

to the Router.

Passphrase

Enter a passphrase of 8-63 characters.

Key Renewal

Enter a Key Renewal period, which instructs

the Router how often it should change the encryption

keys. The default Key Renewal period is

3600

seconds.

WPA2 Enterprise

This option features WPA2 used in coordination with a

RADIUS server. (This should only be used when a RADIUS

server is connected to the Router.)

WPA2 Enterprise

Encryption

WPA2 supports two encryption methods

with dynamic encryption keys; AES or WPA-TKIP/WPA2-

AES. You must select

WPA-TKIP

WPA2-AES

to connect

to the Router.

RADIUS Server

Enter the IP Address of the RADIUS

server.

RADIUS Port

Enter the port number of the RADIUS

server. The default value is

1812

Shared Key

Enter the key shared between the Router

and the server.

Key Renewal

Enter a Key Renewal period, which instructs

the Router how often it should change the encryption

keys. The default Key Renewal time out period is

3600

seconds.

RADIUS

This option features WEP used in coordination with a

RADIUS server. (This should only be used when a RADIUS

server is connected to the Router.)

RADIUS

IMPORTANT:

If you are using WEP encryption,

always each device in your wireless network

MUST use the same WEP encryption method and

encryption key, or else your wireless network will

not function properly.

RADIUS Server

Enter the IP Address of the RADIUS

server.

RADIUS Port

Enter the port number of the RADIUS

server. The default value is

1812

Shared Key

Enter the key shared between the Router

and the server.

Encryption

Select

level

WEP

encryption,

64 bits 10 hex digits

128 bits 26 hex digits

. The

default is

64 bits 10 hex digits

Passphrase

Enter a Passphrase to automatically generate

WEP keys. Then click

Generate

Key 1-4

If you did not enter a Passphrase, enter the WEP

key(s) manually.

Tx Key

Select a key from the drop-down menu.

Page 18 / 66

Chapter 3

Advanced Configuration

Simultaneous Dual-N Band Wireless Router

WEP

WEP is a basic encryption method that is not as secure as

WPA.

WEP

Encryption

Select a level of WEP encryption,

64 bits 10

hex digits

128 bits 26 hex digits

. The default is

64 bits

10 hex digits

Passphrase

Enter a Passphrase to automatically generate

WEP keys. Then click

Generate

Key 1-4

If you did not enter a Passphrase, enter the WEP

key(s) manually.

Tx Key

Select a key from the drop-down menu.

Click

Save Settings

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

Access Restriction

Wireless MAC Filter

To filter wireless users by MAC Address,

either permitting or blocking access, click

Enabled

. If you

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

setting,

Disabled

Prevent PCs listed below from accessing the wireless

network

Select this

to block wireless access by MAC

Address. This option is selected by default.

Permit PCs listed below to the wireless network

Select

this to allow wireless access by MAC Address. This option

is not selected by default.

MAC Address Filter List

Click the

Wireless Client List

button to display the

Wireless Client List. It shows computers and other devices

on the wireless network. Click the

Save to MAC Address

Filter List

checkbox for any device you want to add to

the MAC Address Filter List. Then click the

Add

button. To

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

Refresh

button. To exit this screen and return to the

Wireless MAC

Filter

screen, click the

button.

Page 19 / 66

Chapter 3

Advanced Configuration

Simultaneous Dual-N Band Wireless Router

Wireless Client List

MAC XX

Enter the MAC addresses of the devices whose

wireless access you want to control.

Click

Save Settings

to apply your changes, or click

Cancel

Changes

to cancel your changes.

Wireless > Advanced Wireless Settings

This

Wireless > 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

Advanced Wireless

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, 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 the Frame

Burst option, select

Enabled

. The default is

Disabled

Authentication 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.

Basic Rate

The Basic Rate setting is not one, but a series

of rates at which the Router can transmit. (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.) 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..

Transmission 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 value is

Auto

CTS Protection Mode

CTS (Clear-To-Send) Protection

Mode should remain disabled unless you are having severe

problems with your wireless products not being able

to transmit to the Router in an environment with heavy

latency wireless traffic. This function boosts the Router’s

ability to catch all wireless transmissions but will severely

decrease performance. The default value is

Auto.

Beacon Interval

A beacon is a packet broadcast by the

Router to synchronize the wireless network. Enter a value

between 20 and 1000 milliseconds. The Beacon Interval

value indicates the frequency interval of the beacon.The

default value is

100

DTIM Interval

This value, between 3 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

Page 20 / 66

Chapter 3

Advanced Configuration

Simultaneous Dual-N Band Wireless Router

Fragmentation

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,

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. The RTS

Threshold value should remain at its default value of

2347

Click

Save Settings

to apply your changes, or click

Cancel

Changes

to cancel your changes.

Security > Firewall

The

Security > Firewall

screen is used to configure a firewall

that can filter out various types of unwanted traffic on the

Router’s local network.

Security > Firewall

Firewall

SPI Firewall Protection

To use firewall protection,

keep the default selection,

Enabled

. To turn off firewall

protection, select

Disabled

Internet Filters

Filter

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

Filter

Multicast

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. It is selected by default. Deselect this feature

to disable it.

Filter Internet NAT Redirection

This feature is used to

prevent a local computer from using a URL or Internet

address to access the local server. Select

Filter Internet

NAT Redirection

to filter Internet NAT redirection. It is not

selected by default.

Filter IDENT (Port 113)

This feature keeps port 113 from

being scanned by devices outside of your local network. It

is selected by default. Deselect this feature to disable it.

Web Filters

Filters

Select to filter Proxy, Java, ActiveX, and Cookies.

Click

Save Settings

to apply your changes, or click

Cancel

Changes

to cancel your changes.

Security > VPN Passthrough

The

Security > 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 Settings

to apply your changes, or click

Cancel

Changes

to cancel your changes.

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