Specify Your Internet Settings

46

Orbi

WiFi System

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. 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.

Note:

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.



To change the MTU size:

1.

Launch a web browser from a computer or mobile device that is connected to your Orbi

network.

2.

Enter

orbilogin.com

.

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 > Setup > WAN Setup

.

The WAN Setup page displays.

5.

In the

MTU Size

field, enter a value from 64 to 1500.

Specify Your Internet Settings

47

Orbi

WiFi System

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 3.

Common MTU sizes

MTU

Application

1500

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.

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 send or receive 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.

48

4

4.

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

•

Allow or Block Access to Your Network

•

Use Keywords to Block Internet Sites

•

Block Services From the Internet

•

Manage Network Access Control Lists

•

Schedule When to Block Internet Sites and Services

•

Set Up Security Event Email Notifications

Control Access to the Internet

49

Orbi

WiFi System

Set Up Parental Controls

The first time that you select

Parental Controls

from the BASIC Home page, your browser

goes to the

Parental Controls

website. You can learn more about Parental Controls or

download the application.

After you set up and enable parental controls, you can change the web filtering level for each

device on the network through the network map page on the genie app.



To set up Parental Controls:

1.

Launch a web browser from a computer or mobile device that is connected to your Orbi

network.

2.

Enter

orbilogin.com

.

A login window opens.

3.

Enter the router admin 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

Parental Controls

.

The Live Parental Controls website opens.

5.

Click the button for the app or version that you want to download and use.

6.

Follow the onscreen instructions to download and install the genie app.

7.

Open the genie app and select

Parental Controls

.

After installation, Live Parental Controls automatically starts.

8.

Click the

Next

button, read the note, and click the

Next

button again to proceed.

Because Live Parental Controls uses free OpenDNS accounts, you are prompted to log

in or create a free account.

9.

Select a radio button as follows:

•

If you already own an OpenDNS account, leave the

Yes

radio button selected.

•

If you do not own an OpenDNS account, select the

No

radio button.

Control Access to the Internet

50

Orbi

WiFi System

If you are creating an account, the Create a free OpenDNS account page displays.

Do the following:

a.

Complete the fields.

b.

Click the

Next

button.

After you log on or create your account, the filtering level page displays.

10.

Select a radio button for a filtering level and click the

Next

button.

The Setup is complete.

11.

Click the

Take me to the status page

button.

The Status page displays. Parental Controls are now set up for the router.

12.

To enable Parental Controls, click the

Enable Live Parental Controls

button.

Allow or Block Access to Your Network

You can use access control to block access to your network.



To set up access control:

1.

Launch a web browser from a computer or mobile device that is connected to your Orbi

network.

2.

Enter

orbilogin.com

.

A login window opens.

3.

Enter the router admin 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 > Security > Access Control

.

The Access Control page displays.

5.

Select the

Turn on Access Control

check box.