Linksys E3000 Router Manual PDF (Setup & Configuration Guide)

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High Performance Wireless-N Router

Linksys E3000

Chapter 3: Advanced Configuration

WPA Personal

NOTE:

If you are using WPA2 or WPA, each

device in your wireless network MUST use the

same WPA method and shared key, or else the

network will not function properly°

WPA Personal

Passphrase

Enter a passphrase of 8-63 characters°

WEP

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

as WPA°

IMPORTANT:

If you are using WEP encryption,

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°

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 default TX (Transmit) Key (choose which

Key to use)° The default is

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°)

IMPORTANT:

If you are using WEP encryption,

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

RADIUS Server

Enter the IP address of the RADIUS server°

RADIUS Port

Enter the port number of the RADIUS

server° The default is

1812

Shared Key

Enter the key shared between the Router

and the server°

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 default TX (Transmit) Key (choose which

Key to use)° The default is

Click

Save Settings

to apply your changes, or click

Cancel

Changes

to clear your changes°

Page 27 / 80

High Performance Wireless-N Router

Linksys E3000

Chapter 3: Advanced Configuration

Wireless > Wireless MAC Filter

Wireless access can be filtered (restricted) by specifying

the MAC addresses of the devices in your wireless network°

Wireless > Wireless MAC Filter

Wireless MAC Filter

Enabled/Disabled

To filter wireless users by the MAC

addresses of their computers or devices, select

Enabled

Otherwise, keep the default,

Disabled

Access Restriction

Prevent

When the Wireless Mac Filter is enabled and this

option is selected, PCs listed in the MAC Address filter list

will be prevented from accessing the wireless network°

Permit

When the Wireless Mac Filter is enabled and this

option is selected, only PCs listed in the MAC Address filter

list will be granted access to the wireless network°

MAC Address Filter List

Wireless Client List

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 Filter List

for any device

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

click

Add

To update the on-screen information, click

Refresh

To exit this screen and return to the

Wireless MAC Filter

screen, click

MAC 01-32

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 clear your changes°

Wireless > Advanced Wireless Settings

The

Advanced Wireless Settings

screen is used to set up

the Router’s advanced wireless functions° These settings

should only be adjusted by an advanced user because

incorrect settings can reduce wireless performance° In

most cases, keep the default settings°

Wireless > Advanced Wireless Settings

5 GHz and 2°4 GHz 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°

Page 28 / 80

High Performance Wireless-N Router

Linksys E3000

Chapter 3: Advanced Configuration

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, keep the default,

Enabled

Authentication Type

The default is

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 actually one rate

of transmission 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

, for transmission at all standard

wireless rates (1-2 Mbps, 5°5 Mbps, 11 Mbps, 18 Mbps, and

24 Mbps)°

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

N Transmission 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

Transmission Power

Select the appropriate level of

transmission power:

High

Medium

, or

Low

° In most

cases, keep the default,

High

CTS

Protection

Mode

The

Router

automatically

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

Wireless-N and Wireless-G devices are experiencing severe

problems and are not able to transmit to the Router in an

environment with heavy 802°11b traffic° This option boosts

the Router’s ability to catch all Wireless-N and Wireless-G

transmissions but severely decreases performance° To use

this option, keep the default,

Auto

° To disable this option,

select

Disabled

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

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 clear your changes°

Page 29 / 80

High Performance Wireless-N Router

Linksys E3000

Chapter 3: Advanced Configuration

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°

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 option is enabled by default°

Disable it 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° Select this option to enable the filter°

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 this option to

enable the filter°

Filter IDENT (Port 113)

This feature keeps port 113 from

being scanned by devices outside of your local network°

Select this option to enable the filter°

Web Filters

Proxy

Use of WAN proxy servers may compromise the

Gateway’s security° Denying Proxy will disable access to

any WAN proxy servers° Select this option 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 option to enable Java filtering° Deselect the feature to

allow Java usage°

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°

Select this option to enable ActiveX filtering° Deselect the

feature to allow ActiveX usage°

A cookie is data stored on your computer and

used by Internet sites when you interact with them° Select

this option to filter cookies° Deselect the feature to allow

cookie usage°

Click

Save Settings

to apply your changes, or click

Cancel

Changes

to clear your changes°

Security > VPN Passthrough

The

VPN Passthrough

screen allows you to enable VPN

tunnels using IPSec, L2TP, or PPTP 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

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

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

Click

Save Settings

to apply your changes, or click

Cancel

Changes

to clear your changes°

Page 30 / 80

High Performance Wireless-N Router

Linksys E3000

Chapter 3: Advanced Configuration

Storage > Disk

Your Linksys E3000 has a USB port on the back of the

Router° This allows you to connect an external USB drive

and access the contents over the network°

Reset

Internet

Ethernet

Power

12VDC

USB

When a USB drive is connected to the USB port of the

Router, a shared folder titled

public

is automatically

created and shared on the USB drive° You can access the

contents via Windows Explorer or the Mac Finder° For

details on accessing the contents, refer to How to Install

and Access USB Storage -

Overview

page 45

The

Storage

options can be edited in the browser-based

utility when a USB drive is plugged in°

The

Disk

screen describes the disk (USB drive) currently

attached to the Router° Use this screen to create shared

folders, safely remove a disk, or format a disk (any data on

the disk will be deleted during formatting)°

Shared folders are folders on the disk that are accessible

via the network° You can specify individual folders that

you want shared or share the entire partition° By default,

existing files and folders are not shared on a disk that is

plugged in for the first time° The only folder that is shared

by default is the public folder that is automatically created°

You can manually provide access to additional folders and

grant access to specific users or groups°

Storage > Disk

Disk Management

If a formatted disk is connected to the Router, then its name

is displayed° For each partition of the disk, the Partition,

File System, Capacity, and Free Space information are

displayed°

Safely Remove Disk

Before physically disconnecting a

disk from the Router, click

Safely Remove Disk

first° This

prevents the possible loss of data, which may occur if you

remove the disk while it is transferring data°

Create Share

To create a shared folder, click this option

for the appropriate partition, and the

Shared Folder

screen

appears°

Create Share > Shared Folder

Use this screen to create a shared folder°

Shared Folder

Display Name

Create a name for the folder° This will

appear in the Shared Folder table on the

Disk

screen°

Partition

The name of the partition is displayed°

Location

The location of the current folder is displayed°

If you haven’t selected a folder or shared the partition, a

location will not be displayed°

New Folder

Type in a new folder name if you want to

create a new subfolder in the current location° Then click

Create

Share entire Partition

Select this option if you want

to share the entire partition° If your disk doesn’t have

multiple partitions, selecting this option will share the

entire disk° If you do not want to share the entire partition,

then select the folder you do want to share°

Enter into Folder

Select to go into the specified sub-

folder°

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