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N750 Wireless Dual Band Gigabit Router WNDR4300



To change the LAN settings:

1.

Select

Advanced > Setup > LAN Setup

to display the following screen:

2.

Enter the settings that you want to customize. These settings are described in the following

section,

LAN Setup Screen Settings

.

3.

Click

Apply

to save your changes.

LAN Setup Screen Settings

LAN TCP/IP Setup

•

IP Address

. The LAN IP address of the router.

•

IP Subnet Mask

. The LAN subnet mask of the router. Combined with the IP address, the

IP subnet mask allows a device to know which other addresses are local to it, and which

addresses have to be reached through a gateway or router.

•

RIP Direction

. Router Information Protocol (RIP) allows a router to exchange routing

information with other routers. This setting controls how the router sends and receives

RIP packets. Both is the default setting. With the Both or Out Only setting, the router

broadcasts its routing table periodically. With the Both or In Only setting, the router

incorporates the RIP information that it receives.

•

RIP Version

. This setting controls the format and the broadcasting method of the RIP

packets that the router sends. It recognizes both formats when receiving. By default, the

RIP function is disabled.

RIP-1

is universally supported. It is adequate for most networks, unless you have an

unusual network setup.

RIP-2

carries more information. Both RIP-2B and RIP-2M send the routing data in RIP-2

format. RIP-2B uses subnet broadcasting. RIP-2M uses multicasting.

Use Router as a DHCP Server

Usually, this check box is selected so that the router functions as a Dynamic Host

Configuration Protocol (DHCP) server.

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N750 Wireless Dual Band Gigabit Router WNDR4300

•

Starting IP Address

. Specify the start of the range for the pool of IP addresses in the

same subnet as the router.

•

Ending IP Address

. Specify the end of the range for the pool of IP addresses in the

same subnet as the router.

Address Reservation

When you specify a reserved IP address for a computer on the LAN, that computer receives

the same IP address each time it accesses the router’s DHCP server. Assign reserved IP

addresses to servers that require permanent IP settings. See

Address Reservation

on

page

42.

Use the Router as a DHCP Server

By default, the router acts as a DHCP server. The router assigns IP, DNS server, and default

gateway addresses to all computers connected to the LAN. The assigned default gateway

address is the LAN address of the router. The router assigns IP addresses to the attached

computers from a pool of addresses specified in this screen. Each pool address is tested

before it is assigned to avoid duplicate addresses on the LAN. For most applications, the

default DHCP and TCP/IP settings of the router are satisfactory.

You can specify the pool of IP addresses that can be assigned by setting the starting IP

address and ending IP address. These addresses should be part of the same IP address

subnet as the router’s LAN IP address. Using the default addressing scheme, define a range

between 192.168.1.2 and 192.168.1.254, although you might want to save part of the range

for devices with fixed addresses.

The router delivers the following parameters to any LAN device that requests DHCP:

•

An IP address from the range that you have defined

•

Subnet mask

•

Gateway IP address (the router’s LAN IP address)

•

DNS server IP address (the router’s LAN IP address)

To use another device on your network as the DHCP server, or to specify the network

settings of all of your computers, clear the

Use Router as DHCP Server

check box and click

Apply

. Otherwise, leave this check box selected. If this service is not enabled and no other

DHCP server is available on your network, set your computers’ IP addresses manually so

that they can access the router.

Address Reservation

When you specify a reserved IP address for a computer on the LAN, that computer always

receives the same IP address each time it accesses the router’s DHCP server. Reserved IP

addresses should be assigned to computers or servers that require permanent IP settings.

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N750 Wireless Dual Band Gigabit Router WNDR4300



To reserve an IP address:

1.

In the Address Reservation section of the screen, click the

Add

button.

2.

In the IP Address field, type the IP address to assign to the computer or server. (Choose an

IP address from the router’s LAN subnet, such as 192.168.1.x.)

3.

Type the MAC address of the computer or server.

Tip:

If the computer is already on your network, you can copy its MAC

address from the Attached Devices screen and paste it here.

4.

Click

Apply

to enter the reserved address into the table.

The reserved address is not assigned until the next time the computer contacts the

router’s DHCP server. Reboot the computer, or access its IP configuration and force a

DHCP release and renew.

To edit or delete a reserved address entry, select the radio button next to the reserved

address you want to edit or delete. Then click

Edit

or

Delete

.

Quality of Service (QoS) Setup

QoS is an advanced feature that can be used to prioritize some types of traffic ahead of

others. The WNDR4300 router can provide QoS prioritization over the wireless link and on

the Internet connection.



To configure QoS:

Select

Advanced > Setup > QoS Setup

to display the following screen:

Enable WMM QoS for Wireless Multimedia Applications

The router supports Wi-Fi Multimedia Quality of Service (WMM QoS) to prioritize wireless

voice and video traffic over the wireless link. WMM QoS provides prioritization of wireless

data packets from different applications based on four access categories: voice, video, best

effort, and background. For an application to receive the benefits of WMM QoS, both it and

the client running that application have to have WMM enabled. Legacy applications that do

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N750 Wireless Dual Band Gigabit Router WNDR4300

not support WMM and applications that do not require QoS, are assigned to the best effort

category, which receives a lower priority than voice and video.

WMM QoS is enabled by default. You can disable it in the QoS Setup screen by clearing the

Enable WMM

check box and clicking

Apply

.

Note:

If you clear the Enable WMM check box, you cannot get 11N

throughput.

Set Up QoS for Internet Access

You can give prioritized Internet access to the following types of traffic:

•

Specific applications

•

Specific online games

•

Individual Ethernet LAN ports of the router

•

A specific device by MAC address

To specify prioritization of traffic, create a policy for the type of traffic and add the policy to the

QoS Policy table in the QoS Setup screen. For convenience, the QoS Policy table lists many

common applications and online games that can benefit from QoS handling.

QoS for Applications and Online Gaming



To create a QoS policy for applications and online games:

1.

In the QoS Setup screen, select the

Turn Internet Access QoS On

check box.

2.

Click the

Setup QoS Rule

button to see the QoS Priority Rule list.

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N750 Wireless Dual Band Gigabit Router WNDR4300

You can edit or delete a rule by selecting its radio button and clicking either the

Edit

or

Delete

button. You can also delete all the rules by clicking the

Delete All

button.

3.

To add a priority rule, scroll down to the bottom of the QoS Setup screen and click

Add

Priority Rule

to display the following screen:

4.

In the QoS Policy for field, type the name of the application or game.

5.

In the Priority Category list, select either

Applications

or

Online Gaming

. A list of

applications or games displays.

6.

You can select an existing item from the list, or you can scroll and select

Add a New

Application

or

Add a New Game,

as applicable.

7.

If prompted, in the Connection Type list, select either

TCP,

UDP,

or both (

TCP/UDP

). Specify

the port number or range of port numbers that the application or game uses.

8.

From the Priority list, select the priority for Internet access for this traffic relative to other

applications and traffic. The options are Low, Normal, High, and Highest.

9.

Click

Apply

to save this rule to the QoS Policy list and return to the QoS Setup screen.

QoS for a Router LAN Port



To create a QoS policy for a device connected to one of the router’s LAN ports:

1.

Select

Advanced > Setup > QoS Setup

to display the QoS Setup screen.

2.

Select the

Turn Internet Access QoS On

check box.

3.

Click the

Setup QoS Rule

button.

4.

Click the

Add Priority Rule

button.

5.

From the Priority Category list, select

Ethernet LAN Port

, as shown in the following figure:

6.

From the QoS Policy for list, select the LAN port.

7.

From the Priority list, select the priority for Internet access for this port’s traffic relative to

other applications. The options are Low, Normal, High, and Highest.

8.

Click

Apply

to save this rule to the QoS Policy list and return to the QoS Setup screen.

9.

In the QoS Setup screen, click

Apply

.