If you do not specify an ID here, the router generates one automatically from its MAC address.

10.

Click the

Apply

button.

Your settings are saved.

Set Up an IPv6 PPPoE Internet Connection

To set up a PPPoE IPv6 Internet connection:

1.

Launch a web browser from a computer or wireless device that is connected to the network.

2.

Type

http://www.routerlogin.net

.

A login window opens.

3.

Enter the router user name and password.

The user name is

admin

.The default password is

password

.The user name and password are case-sensitive.

The BASIC Home page displays.

4.

Select

ADVANCED > Advanced Setup > IPv6

.

The IPv6 page displays.

5.

From the

Internet Connection Type

menu, select

PPPoE

.

The page adjusts:

The router automatically detects the information in the following fields:

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31

Nighthawk X4S AC2600 Smart WiFi Router

•

Router’s IPv6 Address on WAN

. This field shows the IPv6 address that is acquired for the router’s WAN

(or Internet) interface. The number after the slash (/) is the length of the prefix, which is also indicated by

the underline (_) under the IPv6 address. If no address is acquired, the field displays Not Available.

•

Router’s IPv6 Address on LAN

. This field shows the IPv6 address that is acquired for the router’s LAN

interface. The number after the slash (/) is the length of the prefix, which is also indicated by the underline

(_) under the IPv6 address. If no address is acquired, the field displays Not Available.

6.

In the

Login

field, enter the login information for the ISP connection.

This is usually the name that you use in your email address. For example, if your main mail account is

[email protected], you would type JerAB in this field. Some ISPs (like Mindspring, Earthlink, and T-DSL) require

that you use your full email address when you log in. If your ISP requires your full email address, type it in this

field.

7.

In the

Password

field, enter the password for the ISP connection.

8.

In the

Service Name

field, enter a service name.

If your ISP did not provide a service name, leave this field blank.

The default setting of the

Connection Mode

menu is

Always On

to provide a steady IPv6

connection. The router never terminates the connection. If the connection is terminated, for

example, when the modem is turned off, the router attempts to reestablish the connection

immediately after the PPPoE connection becomes available again.

Note

9.

Select an IP Address Assignment radio button:

•

Use DHCP Server

. This method passes more information to LAN devices but some IPv6 systems might not

support the DHCv6 client function.

•

Auto Config

. This is the default setting.

This setting specifies how the router assigns IPv6 addresses to the devices on your home network (the LAN).

10.

(Optional) Select the

Use This Interface ID

check box and specify the interface ID to be used for the IPv6

address of the router’s LAN interface.

If you do not specify an ID here, the router generates one automatically from its MAC address.

11.

Click the

Apply

button.

Your settings are saved.

Change the MTU Size

The maximum transmission unit (MTU) is the largest data packet a network device transmits. When one network

device communicates across the Internet with another, the data packets travel through many devices along the way.

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32

Nighthawk X4S AC2600 Smart WiFi Router

If a device in the data path uses a lower MTU setting than the other devices, the data packets must be split or

“fragmented” to accommodate the device with the smallest MTU.

The best MTU setting for NETGEAR equipment is often the default value. In some situations, changing the value

fixes one problem but causes another. Leave the MTU unchanged unless one of these situations occurs:

•

You experience problems connecting to your ISP or other Internet service, and the technical support of either

the ISP or NETGEAR recommends changing the MTU setting. These web-based applications might require an

MTU change:

•

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

•

Yahoo email

•

MSN portal

•

America Online’s DSL service

•

You use VPN and experience severe performance problems.

•

You used a program to optimize MTU for performance reasons and now you are experiencing connectivity or

performance problems.

An incorrect MTU setting can cause Internet communication problems. For example, you

might not be able to access certain websites, frames within websites, secure login pages, or

FTP or POP servers.

Note

To change the MTU size:

1.

Launch a web browser from a computer or WiFi device that is connected to the network.

2.

Type

http://www.routerlogin.net

.

A login window opens.

3.

Enter the router user name and password.

The user name is

admin

.The default password is

password

.The user name and password are case-sensitive.

The BASIC Home page displays.

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33

Nighthawk X4S AC2600 Smart WiFi Router

4.

Select

ADVANCED > Setup > WAN Setup

.

5.

In the

MTU Size

field, enter a value from 64 to 1500.

6.

Click the

Apply

button.

Your settings are saved.

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

Application

MTU

The largest Ethernet packet size.This setting is typical for connections that do not use PPPoE or VPN

and is the default value for NETGEAR routers, adapters, and switches.

1500

Used in PPPoE environments.

1492

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

1472

Used in some DHCP environments.

1468

Usable by AOL if you do not send or receive large email attachments, for example.

1460

Used in PPTP environments or with VPN.

1436

Maximum size for AOL DSL.

1400

Typical value to connect to dial-up ISPs.

576

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34

Nighthawk X4S AC2600 Smart WiFi Router

3

Control Access to the Internet

The router comes with a built-in firewall that helps protect your home network from unwanted intrusions from the Internet.

This chapter includes the following sections:

•

Set Up Parental Controls

on page 36

•

Allow or Block Access to Your Network

on page 37

•

Use Keywords to Block Internet Sites

on page 39

•

Manage Network Access Control Lists

on page 43

•

Schedule When to Block Internet Sites and Services

on page 44

•

Set Up Security Event Email Notifications

on page 45

35