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R6300 WiFi Router 802.11ac Dual Band Gigabit

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A secure website that will not open, or displays only part of a web page

-

Yahoo email

-

MSN portal

-

America Online’s DSL service

•

You use VPN and have severe performance problems.

•

You used a program to optimize MTU for performance reasons, and now you have

connectivity or performance problems.

Note:

An incorrect MTU setting can cause Internet communication

problems. For instance, you might not be able to access certain

websites, frames within websites, secure login pages, or FTP or

POP servers.

If you suspect an MTU problem, a common solution is to change the MTU to 1400. If you are

willing to experiment, you can gradually reduce the MTU from the maximum value of 1500

until the problem goes away. The following table describes common MTU sizes and

applications.

Table 2.

Common MTU Sizes

MTU

Application

1500

The largest Ethernet packet size and the default value. This setting is typical for

connections that do not use PPPoE or VPN, and is the default value for NETGEAR

routers, adapters, and switches.

1492

Used in PPPoE environments.

1472

Maximum size to use for pinging. (Larger packets are fragmented.)

1468

Used in some DHCP environments.

1460

Usable by AOL if you do not have large email attachments, for example.

1436

Used in PPTP environments or with VPN.

1400

Maximum size for AOL DSL.

576

Typical value to connect to dial-up ISPs.



To change the MTU size:

1.

Select

Advanced > Setup > WAN Setup

.

2.

In the MTU Size field, enter a value from 64 to 1500.

3.

Click

Apply

to save the settings.

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R6300 WiFi Router 802.11ac Dual Band Gigabit

LAN Setup

The LAN Setup screen allows configuration of LAN IP services such as Dynamic Host

Configuration Protocol (DHCP) and Routing Information Protocol (RIP).

The router is shipped preconfigured to use private IP addresses on the LAN side and to act

as a DHCP server. The router’s default LAN IP configuration is:

•

LAN IP address.

192.168.1.1

•

Subnet mask.

255.255.255.0

These addresses are part of the designated private address range for use in private networks

and are suitable for most applications. If your network requires a different IP addressing

scheme, you can change these settings in the LAN Setup screen.



To change the LAN settings:

Note:

If you change the LAN IP address of the router while connected

through the browser, you will be disconnected. You will have to open

a new connection to the new IP address and log in again.

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.

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R6300 WiFi Router 802.11ac Dual Band Gigabit

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

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

This check box is usually selected so that the router functions as a Dynamic Host

Configuration Protocol (DHCP) server.

•

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.

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.

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R6300 WiFi Router 802.11ac Dual Band Gigabit

You can specify the pool of IP addresses to 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 you have defined

•

Subnet mask

•

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

•

Primary DNS server (if you entered a primary DNS address in the Internet Setup screen;

otherwise, the router’s LAN IP address)

•

Secondary DNS server (if you entered a secondary DNS address in the Internet Setup

screen)

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 or

they will not be able to 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.



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

.

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R6300 WiFi Router 802.11ac Dual Band Gigabit

Quality of Service (QoS) Setup

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

others. The R6300 WiFi Router can provide QoS prioritization over the wireless link and on

the Internet connection. To configure QoS, use the QoS Setup screen.

Select

Advanced > Setup > QoS Setup

to display the following screen:

Enable WMM QoS for Wireless Multimedia Applications

The R6300 WiFi 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 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

.

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.