Netgear C6220 User Manual

User Manual

AC1200 WiFi Cable Modem Router
Model C6220

February 2021
202-12220-01

NETGEAR, Inc.
350 East Plumeria Drive
San Jose, CA 95134, USA

AC1200 WiFi Cable Modem Router Model C6220

Support and Community

Visit netgear.com/support to get your questions answered and access the latest downloads.

You can also check out our NETGEAR Community for helpful advice at community.netgear.com.

Customer-owned cable devices might not be compatible with certain cable networks. Check with your

cable Internet provider to confirm that this NETGEAR cable device is allowed on your cable network.

If you are experiencing trouble installing your cable device, contact NETGEAR at 1-866-874-8924.

Note to CATV system installer: This reminder is provided to call the CATV systems installer’s attention

to Section 820-93 of the National Electrical Code, which provide guidelines for proper grounding

and in particular, specify that coaxial cable shield shall be connected to the grounding system of the

building, as close to the point of cable entry as practical.

Regulatory and Legal

Si ce produit est vendu au Canada, vous pouvez accéder à ce document en français canadien à

https://www.netgear.com/support/download/.

(If this product is sold in Canada, you can access this document in Canadian French at

https://www.netgear.com/support/download/.)

For regulatory compliance information including the EU Declaration of Conformity, visit

https://www.netgear.com/about/regulatory/.

See the regulatory compliance document before connecting the power supply. For NETGEAR’s Privacy

Policy, visit https://www.netgear.com/about/privacy-policy.

By using this device, you are agreeing to NETGEAR’s Terms and Conditions at

https://www.netgear.com/about/terms-and-conditions. If you do not agree, return the device to your

place of purchase within your return period.

Trademarks

©NETGEAR, Inc. NETGEAR and the NETGEAR Logo are trademarks of NETGEAR.

User Manual2

Contents

Chapter 1 Hardware Setup

Chapter 2 Connect to the Network and Access the Modem Router

Unpack Your Modem Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Front Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Position Your Gateway. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Cable Your Modem Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Cable the Modem Router With a Simple Network . . . . . . . . . . . . . . . . .12

Cable Your Modem Router to a Router or Gateway . . . . . . . . . . . . . . . . 13

Activate Your Internet Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Activate Your Internet Service With Comcast Xfinity . . . . . . . . . . . . . . . . . . 16

Use the Self-Activation Process to Set Up Your Internet Connection. .16

Call Comcast Xfinity to Set Up Your Internet Connection . . . . . . . . . . .16

Perform a Speed Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

Connect to the Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

Wired Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

WiFi Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

Types of Logins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Log In to the Modem Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Chapter 3 Specify Initial Settings

Specify the Cable Connection Starting Frequency . . . . . . . . . . . . . . . . . . .24

View Modem Router Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

Specify the Internet Connection Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Specify an IPv6 Internet Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Chapter 4 Control Access to the Internet

Use Keywords to Block Internet Sites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

Add a Keyword to Block. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

Delete a Keyword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

Block Services From the Internet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Schedule When to Block Internet Sites and Services . . . . . . . . . . . . . . . . .34

Avoid Blocking on a Trusted Computer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Set Up Security Event Email Notifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

4

AC1200 WiFi Cable Modem Router Model C6220

Chapter 5 Share a USB Storage Device Attached to the Modem Router

USB Device Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38

Connect a USB Storage Device to the Modem Router . . . . . . . . . . . . . . . . 38

Access a USB Drive Connected to the Modem Router From a Windows Computer
39

Map a USB Device to a Windows Network Drive . . . . . . . . . . . . . . . . . . . . .40

Access a USB Storage Device That Is Connected to the Modem Router From a Mac
40

Control Access to the USB Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Use FTP Within the Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42

View or Change Network Folders on a USB Drive . . . . . . . . . . . . . . . . . . . .43

Add a Network Folder on a USB Storage Device . . . . . . . . . . . . . . . . . . . . . 45

Edit a Network Folder on a USB Storage Device . . . . . . . . . . . . . . . . . . . . . 46

Approve USB Storage Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Safely Remove a USB Storage Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48

Chapter 6 Specify Network Settings

View or Change the WAN Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50

Change the MTU Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Set Up a Default DMZ Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Change the Modem Router’s Device Name . . . . . . . . . . . . . . . . . . . . . . . . .54

Change the LAN TCP/IP Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Specify the IP Addresses That the Modem Router Assigns . . . . . . . . . . . . . 56

Manage LAN IP Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Reserve a LAN IP Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58

Edit a Reserved Address Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58

Delete a Reserved Address Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59

Use the WPS Wizard for WiFi Connections . . . . . . . . . . . . . . . . . . . . . . . . . .59

Specify Basic WiFi Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Change the WiFi Security Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62

Set Up a WiFi Guest Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63

Control the WiFi Radios . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65

Use the WiFi On/Off Button. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65

Enable or Disable the WiFi Radios . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65

Specify WPS Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Set Up a WiFi Access List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Dynamic DNS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69

Improve Network Connections With Universal Plug-N-Play . . . . . . . . . . . . 70

Chapter 7 Manage Your Network

View Modem Router Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73

View Cable Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73

View Internet Port Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74

View WiFi Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75

Reboot the Modem Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76

Change the Router Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

User Manual5

AC1200 WiFi Cable Modem Router Model C6220

View and Manage Logs of Modem Router Activity. . . . . . . . . . . . . . . . . . . . 77

Manage the Modem Router Configuration File . . . . . . . . . . . . . . . . . . . . . . 79

Back Up Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79

Restore Configuration Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79

Erase the Current Configuration Settings . . . . . . . . . . . . . . . . . . . . . . . . .80

Change the admin Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

View Event Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

Run the Ping Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83

Run the Traceroute Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

View WiFi Access Points in Your Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85

View or Change the Modem Router WiFi Channel. . . . . . . . . . . . . . . . . . . . 86

Remote Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88

Set Up Remote Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88

Use Remote Access. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89

Control the LED Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Chapter 8 Specify Internet Port Settings

Set Up Port Forwarding to a Local Server . . . . . . . . . . . . . . . . . . . . . . . . . . .92

Add a Custom Port Forwarding Service . . . . . . . . . . . . . . . . . . . . . . . . . .93

Edit a Port Forwarding Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94

Delete a Port Forwarding Entry. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95

Application Example: Make a Local Web Server Public . . . . . . . . . . . . .95

How the Modem Router Implements the Port Forwarding Rule . . . . . .96

Set Up Port Triggering. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Add a Port Triggering Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97

Specify When to Use Port Triggering. . . . . . . . . . . . . . . . . . . . . . . . . . . . .98

Application Example: Port Triggering for Internet Relay Chat . . . . . . .99

Chapter 9 Troubleshooting

Use LEDs to Troubleshoot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102

Cannot Log In to the Modem Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102

Troubleshoot the ISP Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

Troubleshoot a TCP/IP Network Using a Ping Utility . . . . . . . . . . . . . . . . .104

Use PIng to Test the LAN Path to Your Gateway . . . . . . . . . . . . . . . . . .105

Use Ping to Test the Path From a Windows Computer to a Remote Device105

Appendix A Supplemental Information

Factory Default Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .108

Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .110

User Manual6

1

1Hardware Setup

This chapter covers the following topics:

• Unpack Your Modem Router

• Front Panel

• Rear Panel

• Position Your Gateway

• Cable Your Modem Router

• Activate Your Internet Service

• Activate Your Internet Service With Comcast Xfinity

For more information about the topics covered in this manual, visit the support website at

http://support.netgear.com.

7

AC1200 WiFi Cable Modem Router Model C6220

Ethernet cable

Power adapter

Modem router

Antennas (2)

Unpack Your Modem Router

Your package contains the following items.

Figure 1. Package contents

Front Panel

The modem router status LEDs and buttons are on the front.

Figure 2. Modem router front view

You can control the LED settings. For information about how to specify the LED settings, see
Control the LED Settings on page 89.

Hardware Setup User Manual8

AC1200 WiFi Cable Modem Router Model C6220

You can use the LEDs to verify status and connections. The following table lists and
describes each LED and button on the front panel of the modem router.

LED Description

WPS button with LED

This button lets you use WPS to join the WiFi network without typing the WiFi password.
The WPS LED blinks during this process and then lights solid.

WiFi On/Off button with LED

Power

Downstream

Upstream

Internet

Pressing this button for two seconds turns the WiFi radios in the modem router on and off. If
this LED is lit, the WiFi radios are on. If this LED is off, the WiFi radios are turned off and
you cannot use WiFi to connect to the modem router.

• Green. Power is supplied to the modem router.

• Red. Powe

r is cut off due to a thermal error caused by heat. Move the unit to a well

ventilated area and power cycle the unit.

• Off. No

power is supplied to the modem router.

• Solid green. One or more downstream channels are locked.

• Blinking green. T

• Off. No

downstream channel is locked.

he unit is scanning for a downstream channel.

• Solid green. One or more upstream channels are locked.

• Blinking green. The unit is scanning for an upstream channel.

• Off.

No upstream channel is locked.

• Solid green. The modem router is online.

• Blinking green. The modem router is synchronizing with the cable provider’s cable

modem termination system (CMTS).

• Off. T

he modem router is offline.

2.4 GHz radio

5 GHz radio

Ethernet • Green.

• Green. The 2.4 GHz radio is on.

• Blinking green. T

• Off. T

he 2.4 GHz radio is off.

here is WiFi traffic on the 2.4 GHz band.

• Green. The 5 GHz radio is on.

• Blinking green. T

• Off. T

he 5 GHz radio is off.

here is WiFi traffic on the 5 GHz band.

A device is connected to an Ethernet port and powered on.

• Blinking green. The Ethernet port is sending or receiving traffic.

• Off.

No device is connected to an Ethernet port.

USB • Green. A USB device is connected to the port on the back panel.

• Off. No

USB device is connected to the port on the back panel.

Hardware Setup User Manual9

AC1200 WiFi Cable Modem Router Model C6220

LED On-Off 
switch

USB 2.0 port

Ethernet
ports

Reset
button

Coaxial
cable
connector

Power
adapter
input

Power
On/Off
button

Rear Panel

The rear panel connections and buttons shown the following figure.

Figure 3. Modem router rear panel

Position Your Gateway

The modem router lets you access your network anywhere within the operating range of your
WiFi network. However, the operating distance or range of your WiFi connection can vary
significantly depending on the physical placement of your modem router. For example, the
thickness and number of walls the WiFi signal passes through can limit the range.

Additionally, other WiFi access points in and aroun
router’s signal. WiFi access points are modem routers, repeaters, WiFi range extenders, and
any other device that emits a WiFi signal for network access.

Position your modem router according to

• Place yo
devices operate, and within line of sight to your WiFi devices.

• Make su
cables for wired computers.

ur modem router near the center of the area where your computers and other

re that the modem router is within reach of an AC power outlet and near Ethernet

the following guidelines:

d your home might affect your modem

Hardware Setup User Manual10

AC1200 WiFi Cable Modem Router Model C6220

• Place the modem router in an elevated location, minimizing the number walls and ceilings
between the modem router and your other devices.

• Place the modem router away from electrical devices such as these:

- Ceiling fans

- Home security systems

- Microwaves

- Computers

- Base of a cordless phone

- 2.4 GHz cordless phone

• Place the modem router away from large metal surfaces, large glass surfaces, and

insulated walls such as these:

- Solid metal door

- Aluminum studs

- Fish tanks

- Mirrors

- Brick

- Concrete

Cable Your Modem Router

The most common way to cable your modem router is the simplest, without any other routers
or gateways on the same network. You can also cable the modem router to another router or
gateway and log in to the modem router to specify the Router Mode setting.

Hardware Setup User Manual11

AC1200 WiFi Cable Modem Router Model C6220

Modem router

Power adapter

Coaxial cable

Ethernet cable

Cable the Modem Router With a Simple Network

The modem router comes configured to work as both a modem and a router. You can share
your Internet connection without connecting the modem router to a router or gateway.

Figure 4. Simple modem router network

To cable your modem router:

1. Connect the an

urn off existing modems and routers.

2. T

If you are replacing a modem that is currently connected in yo

tennas to the threaded antenna posts.

ur home, unplug the

modem and plug the new modem router into the same outlet.

3. Connect a coaxial cable.

Use the coaxial cable that is provided by your cable comp

any to connect the cable port on

the modem router to a cable wall outlet.

Note: If Charte

r is your cable Internet service provider (ISP), Charter
recommends connecting your modem router directly to a cable wall
outlet. If you must use a splitter, use a splitter that is rated at 3.5 dBmv.

Make sure that the cable is tightly connected.

4. Connect

the power adapter to the modem router and plug the power adapter into an

electrical outlet.

Make sure that the Power On/Off button and the LED On-Off switch on

the rear panel of

the modem router are in the On position.

The startup procedure takes about one minute. When the startup procedure is complete,
the Power

You can log in to the modem router to view or change

LED lights green.

its settings.

Hardware Setup User Manual12

AC1200 WiFi Cable Modem Router Model C6220

Cable Your Modem Router to a Router or Gateway

If you want to cable the modem router to a router or gateway, you must log in to the modem
router and change its Router Mode setting. Changing this setting prevents certain network
conflicts that can occur when two devices on the same network perform routing functions
such as network address translation (NAT) and DHCP (assigning IP addresses to devices on
the network).

To cable your modem router to a gateway or router:

1. Connect the antennas to the threaded antenna posts.

2. Turn off existing modems and routers.

If you are replacing a modem that is currently connected in your home, unplug the
modem and plug the new modem router into the same outlet.

3. Connect a coaxial cable.

Use the coaxial cable that is provided by your cable company to connect the cable port
on the modem router to a cable wall outlet.

Note: If Charter is your cable Internet service provider (ISP), Charter

recommends connecting your modem router directly to a cable wall
outlet. If you must use a splitter, use a splitter that is rated at 3.5 dBmv.

Make sure that the cable is tightly connected.

4. Connect the power adapter to the modem router and plug the power adapter into an
electrical outlet.

Make sure that the Power On/Off button and the LED On-Off switch on the rear panel of
the modem router are in the On position.

The startup procedure takes about one minute. When the startup procedure is complete,
the Power LED lights green.

5. On your WiFi-enabled computer or mobile device, find and select the WiFi network.

The WiFi network name is on the modem router label.

6. Join the WiFi network and enter the WiFi password.

The password is on the modem router label.

Your WiFi device connects to the WiFi network.

7. Launch a web browser.

8. Type http://routerlogin.net or http://192.168.0.1.

A login window opens.

9. Enter the modem router user name and password.

The user name is admin. The default password is password. The user name and
password are case-sensitive.

Hardware Setup User Manual13

AC1200 WiFi Cable Modem Router Model C6220

10. When prompted, change the password and enter security questions and answers.

The BASIC Home page displays.

11. Select AD

VANCED > Administration > Router Mode.

The Router Mode page displays.

12. Select the No radio

button.

With this setting, the modem router works as a bridge and the router behind it obtains a
WAN IP address from the Internet service provider.

13. Click the Appl

y button.

Your settings are saved.

14. Fo

llow the instructions that came with your router to connect it to the modem router.

Activate Your Internet Service

To activate your Internet service:

isit your cable Internet provider’s website and follow the onscreen instructions to

1. V
activate your Internet service.

Cable ISP Contact Information

Cox https://www.cox.com/residential/support/home.html

https://www.cox.com/activate
1-888-556-1193

Mediacom https://support.mediacomcable.com

1-855-Mediacom (1-855-633-4226)

Optimum https://www.optimum.net/support/contact-us

https://install.optimum.com/JointInstall
1-877-810-6750

Sparklight

https://support.sparklight.com
1-877-692-2253

Hardware Setup User Manual14

AC1200 WiFi Cable Modem Router Model C6220

Made in China

Cable ISP Contact Information

Spectrum https://www.spectrum.net/contact-us

https://activate.spectrum.net
1-833-267-6094

Xfinity https://www.xfinity.com/internetsetup

Use the Xfinity app for Xfinity activation.

Note: Your cable Internet provider’s contact information might change. You

can also find the contact information in your monthly Internet service
billing statement.

2. If you are unable to activate your Internet service using the instructions on your cable
Internet provider’s website, call your cable Internet provider and do the following:

a. W

hen asked, provide your account information and provide the modem router’s

model number, which is C6220, serial number, and MAC address.

The serial number and MAC address are on the modem router label.

b. Wait for your cable Internet provider to confirm that your modem router is active.

c. I

f you do not get an Internet connection with the modem router, ask your cable
Internet provider to look for your modem router online, and do one of the following
depending what your cable Internet provider tells you about your modem router:

f the modem router is not visible, your cable Internet provider can give you

• I

instructions to verify why the modem router does not connect with your high-speed
Internet service.

• I

f the modem router is visible to your cable Internet provider, reboot the modem

router. Check your online status again.

Hardware Setup User Manual15

AC1200 WiFi Cable Modem Router Model C6220

Activate Your Internet Service With Comcast Xfinity

Activate your Internet service by using Comcast Xfinity’s self-activation process. If you are
unable to self-activate your modem router, call Comcast Xfinity customer service. After you
complete the setup, perform a speed test.

Before you start the self-activation process, make sure that your account number, account
phone number, and login information (your email address or user name and password) are
nearby.

Set Up and Activate Your Modem Router With Xfinity

1. If your current modem is leased from Xfinity, call Xfinity support to remove your leased
modem from your Xfinity service.

2. Make sure that your mobile device is using an LTE Internet connection (do not connect to a
WiFi network).

3. Open the Xfinity app and sign in with your Xfinity ID.

4. Follow the steps to get online.

5. The activation process takes about five minutes.

6. On your mobile device, launch a web browser and enter routerlogin.net or 192.168.0.1 in

the address field.

7. Follow the prompts to:

• Agree to the terms and conditions.

• Change your modem router’s admin credentials and set up security questions.

Review your WiFi network name and password.

Call Comcast Xfinity to Set Up Your Internet Connection

If you are unable to activate your modem router using the Xfinity self-activation process, call
Comcast Xfinity customer service.

Hardware Setup User Manual16

AC1200 WiFi Cable Modem Router Model C6220

Made in China

Before you call Comcast Xfinity, make sure that your account number, account phone
number, email address, and password are nearby. The cable modem’s model number is
C6220. The serial number and MAC address are on the modem router label.

Figure 5. Modem router label

To set up your Internet connection by calling Comcast Xfinity:

1. Call Comcast Xf

2. When asked, pro

number and MAC address.

ait for Comcast Xfinity to confirm that your modem router is active.

3. W

4. If you

do not get an Internet connection with the modem router, ask Comcast Xfinity to look
for your modem router online, and do one of the following depending on what Comcast
Xfinity tells you about your modem router:

f the modem router is not visible, Comcast Xfinity can give you instructions to verify

• I

why the modem router does not connect with your high-speed Internet service.

• I

f the modem router is visible to Comcast Xfinity, reboot the modem router. Check

your online status again.

inity customer service at 1-800-Xfinity (1-800-934-6489).

vide your account information and provide the modem router’s model

Set Up Your Modem Router With Another Cable Internet Service Provider

1. Connect your computer or mobile device to the modem router with WiFi or Ethernet:

WiFi: Use the

connect.

Ethernet: Use a
modem router. (Your computer must have an Ethernet port.)

WiFi network name (SSID) and password on the modem router label to

n Ethernet cable to connect a computer to an Ethernet port on the

2. Launch a web

3. Follow t

• Agr

• Cha

• Review your WiFi ne

Hardware Setup User Manual17

he prompts to:

ee to the terms and conditions.

browser and enter routerlogin.net or 192.168.0.1 in the address field.

nge your modem router’s admin credentials and set up security questions.

twork name and password.

AC1200 WiFi Cable Modem Router Model C6220

Perform a Speed Test

To determine the accurate Internet speed, visit the speed test website of your cable Internet
provider and perform a speed test.

If your actual speed is lower than your subscribed speed, contact your cable Internet
provider.

Hardware Setup User Manual18

2

2Connect to the Network and

Access the Modem Router

This chapter contains the following sections:

• Connect to the Network

• Types of Logins

• Log In to the Modem Router

18

AC1200 WiFi Cable Modem Router Model C6220

Connect to the Network

You can connect to the modem router’s network through a wired or WiFi connection. If you
set up your computer to use a static IP address, change the settings so that it uses Dynamic
Host Configuration Protocol (DHCP).

Wired Connection

You can connect your computer to the modem router using an Ethernet cable and join the
modem router’s local area network (LAN).

To connect your computer to the modem router with an Ethernet cable:

1. Make sure that the modem router is receiving power (its Power LED is lit).

If the Power LED does not light, make sure that the Power On/Off button and the LED
On-Off switch on the rear panel of the modem router are in the On position.

2. Connect an Ethernet cable to an Ethernet port on your computer.

3. Connect the other end of the Ethernet cable to one of the numbered Ethernet ports.

Your computer connects to the local area network (LAN). A message might display on
your computer screen to notify you that an Ethernet cable is connected.

WiFi Connection

You can connect to the modem router’s WiFi network with Wi-Fi Protected Setup (WPS) or
you can find and select the WiFi network.

To use WPS to connect to the WiFi network:

1. Make sure that the modem router is receiving power (its Power LED is lit).

If the Power LED does not light, make sure that the Power On/Off button and the LED
On-Off switch on the rear panel of the modem router are in the On position.

2. Press the WPS button on the modem router.

3. Within two minutes, on your WiFi-enabled computer or mobile device, press its WPS button

or follow its instructions for WPS connections.

Your WiFi-enabled computer or mobile device connects to the WiFi network.

To find and select the WiFi network:

1. Make sure that the modem router is receiving power (its Power LED is lit).

If the Power LED does not light, make sure that the Power On/Off button and the LED
On-Off switch on the rear panel of the modem router are in the On position.

2. On your WiFi-enabled computer or mobile device, find and select the WiFi network.

Connect to the Network and Access the
Modem Router

User Manual19

AC1200 WiFi Cable Modem Router Model C6220

Made in China

The WiFi network name is on the modem router label.

3. Join

the WiFi network and enter the WiFi password.

The password is on the modem router label.

Your WiFi device connects to the

WiFi network.

Label

The label on the modem router shows the login information, MAC address, and serial
number.

Figure 6. Modem router label

Types of Logins

Separate types of logins serve different purposes. It is important that you understand the
difference so that you know which login to use when.

Types of logins:

• Modem router login.This log
browser as admin.

• e oth

• WiFi network key or password. Y

er way. If you cannot find this login information, contact your service provider.

network name (SSID) and password for WiFi access. This information is on the modem
router label.

s you in to the modem router web pages from a web

our modem router is preset with a unique WiFi

Log In to the Modem Router

When you connect to the network (either with WiFi or with an Ethernet cable), you can use a
web browser to access the modem router to view or change its settings. The first time you
access the modem router, the modem router automatically checks to see if it can connect to
your Internet service.

Connect to the Network and Access the
Modem Router

User Manual20

AC1200 WiFi Cable Modem Router Model C6220

To log in to the modem router:

1. L

aunch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

2. T

ype http://routerlogin.net or http://192.168.0.1.

A login window opens.

3. Ente

r the modem router user name and password.

The user name is adm

in. The default password is password. The user name and

password are case-sensitive.

The first time you log in to the modem rou

ter, you are prompted to change the admin
password and set up security questions. You must enter these settings before you can
access the Internet.

4. Enter a new password.

5. Select securit

y questions and enter the answers.

Connect to the Network and Access the
Modem Router

User Manual21

AC1200 WiFi Cable Modem Router Model C6220

6. Click the Next button.

7. Click the Next button.

The modem router connects to the Internet. The BASIC Home page displays the status of
the In

ternet connection.

Connect to the Network and Access the
Modem Router

User Manual22

3

3Specify Initial Settings

This chapter contains the following sections:

• Specify the Cable Connection Starting Frequency

• View Modem Router Initialization

• Specify the Internet Connection Settings

• Specify an IPv6 Internet Connection

23

AC1200 WiFi Cable Modem Router Model C6220

Specify the Cable Connection Starting Frequency

The starting frequency is automatically generated. For most Internet connections, you do not
need to specify this information. If you must enter a starting frequency, contact your Internet
service provider.

To change the starting frequency:

1. Laun

2. Ty

3. Enter

4. Select Cab

ch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

pe http://routerlogin.net or http://192.168.0.1.

A login window opens.

the modem router user name and password.

The user name is ad
password are case-sensitive.

The BASIC Home page displays.

le Connection.

min. The default password is password. The user name and

5. Enter an number in the Starting Frequency field.

6. Click the Appl

Your settings are saved.

Specify Initial Settings User Manual24

y button.

AC1200 WiFi Cable Modem Router Model C6220

View Modem Router Initialization

You can track the initialization procedure of the modem router and get details about the
downstream and upstream cable channel. The time is displayed after the modem router is
initialized.

The modem router automatically goes through th
process:

• Scans and locks th

• Obt

• Con

To view the status of the modem router initialization:

1. L

2. T

3. Ente

4. Select Cable Connec

ains a WAN address for the modem router.

nects to the Internet.

aunch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

ype http://routerlogin.net or http://192.168.0.1.

A login window opens.

r the modem router user name and password.

The user name is adm
password are case-sensitive.

The BASIC Home page displays.

e downstream frequency and then ranges the upstream channels.

in. The default password is password. The user name and

tion.

e following steps in the provisioning

The Startup Procedure section displays the initialization progress.

The Downstream Bonded Channels section displays the st

Specify Initial Settings User Manual25

atus of each channel.

AC1200 WiFi Cable Modem Router Model C6220

Specify the Internet Connection Settings

You can view or change the modem router’s Internet connection settings.

To specify the Internet connection settings:

1. Laun

2. Ty

3. Enter

4. Select A

ch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

pe http://routerlogin.net or http://192.168.0.1.

A login window opens.

the modem router user name and password.

The user name is ad
password are case-sensitive.

The BASIC Home page displays.

DVANCED > Setup > Internet Setup.

min. The default password is password. The user name and

5. If your Internet connection requires an account name or host name, type it in the Account
Name (If Required) field.

6. If

your Internet connection requires a domain name, type it in the Domain Name (If

Required) field.

For the other sections on this page, the default settings usually work, but you can change
them.

7. Select an Internet IP

• Get Dynamically from ISP. Y

automatically assigns these addresses.

• Use Static IP Address. Ent

address that your ISP assigned. The gateway is the ISP modem router to which your
modem router connects.

Specify Initial Settings User Manual26

Address radio button:

our ISP uses DHCP to assign your IP address. Your ISP

er the IP address, IP subnet mask, and the gateway IP

AC1200 WiFi Cable Modem Router Model C6220

8. Select a Domain Name Server (DNS) Address radio button:

• Get Automatically from ISP. Y

ISP automatically assigns this address.

• Use These DNS Servers. I

this option. Enter the IP address of your ISP’s primary DNS server. If a secondary
DNS server address is available, enter it also.

our ISP uses DHCP to assign your DNS servers. Your

f you know that your ISP requires specific servers, select

9. Click the Ap

Your settings are saved.

Note: If you get address not found errors when you go to a website, it is

ply button.

likely that your DNS servers are not set up correctly. Contact your ISP
to get the DNS server addresses.

Specify an IPv6 Internet Connection

To specify an IPv6 Internet connection:

aunch a web browser from a WiFi-enabled computer or mobile device that is

1. L
connected to the network.

2. T

ype http://routerlogin.net or http://192.168.0.1.

A login window opens.

3. Ente

r the modem router user name and password.

The user name is adm
password are case-sensitive.

in. The default password is password. The user name and

The BASIC Home page displays.

4. Select A

If your Internet provider supports IPv6, the System Delegated Prefix field displays IPv6
information.

Specify Initial Settings User Manual27

DVANCED > Setup > IPV6.

AC1200 WiFi Cable Modem Router Model C6220

5. 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 modem router assigns IPv6 addresses to the home
network (the LAN).

6. Complete the fields in the Server Setting section.

7. Click the Apply button.

Your settings are saved.

Specify Initial Settings User Manual28

4

4Control Access to the Internet

This chapter explains how to prevent objectionable content from reaching the computers and
other devices that are connected to your network.

This chapter includes the following sections:

• Use Keywords to Block Internet Sites

• Use Keywords to Block Internet Sites

• Block Services From the Internet

• Schedule When to Block Internet Sites and Services

• Avoid Blocking on a Trusted Computer

• Set Up Security Event Email Notifications

29

AC1200 WiFi Cable Modem Router Model C6220

Use Keywords to Block Internet Sites

You can use keywords to block certain Internet sites from your network. You can use blocking
all the time or based on a schedule.

Add a Keyword to Block

To block Internet sites:

1. Laun

2. Ty

3. Enter

4. Select A

ch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

pe http://routerlogin.net or http://192.168.0.1.

A login window opens.

the modem router user name and password.

The user name is ad
password are case-sensitive.

The BASIC Home page displays.

DVANCED > Security > Block Sites.

min. The default password is password. The user name and

5. Select one of the keyword blocking options:

• Per Schedule. T

Schedule When to Block Internet Sites and Services on page 34.)

(See

• Always. T

6. In

the Keyword field, enter a keyword or domain that you want to block.

For example:

Control Access to the Internet User Manual30

urn on keyword blocking all the time, independent of the Schedule screen.

urn on keyword blocking according to the Schedule screen settings.

AC1200 WiFi Cable Modem Router Model C6220

• Specify XXX to block http://www.badstuff.com/xxx.html.

• Specify .com if you want to allow only sites with domain suffixes such as .edu or .gov.

• Enter a period (.) to block all Internet browsing access.

7. Click the Add Keyword button.

The keyword is added to the keyword list. The keyword list supports up to 32 entries.

8. Click the Apply button.

Keyword blocking takes effect.

Delete a Keyword

To delete keywords from the list:

1. Launch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

2. Type http://routerlogin.net or http://192.168.0.1.

A login window opens.

3. Enter the modem 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 > Security > Block Sites.

The Block Sites page displays.

5. Do one of the following:

• To delete a single word, select it and click the Delete Keyword button.

The keyword is removed from the list.

• To delete all keywords on the list, click the Clear List button.

All keywords are removed from the list.

6. Click the Apply button.

Your settings are saved.

Block Services From the Internet

You can block Internet services on your network based on the type of service. You can block
the services all the time or based on a schedule.

Control Access to the Internet User Manual31

To block services:

AC1200 WiFi Cable Modem Router Model C6220

1. Laun

ch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

pe http://routerlogin.net or http://192.168.0.1.

2. Ty

A login window opens.

3. Enter

the modem router user name and password.

The user name is ad

min. The default password is password. The user name and

password are case-sensitive.

The BASIC Home page displays.

4. Select ADV

ANCED > Security > Block Services.

5. Specify when to block the services:

• T

o block the services all the time, select the Always radio button.

• T

o block the services based on a schedule, select the Per Schedule radio button.

To specify the schedule, see

Schedule When to Block Internet Sites and Services on

page 34.

6. Click the Add but

ton.

7. To add a service that is in the Service Type list, select the application or service.

The settings for this service automatically display in the fields.

Control Access to the Internet User Manual32

AC1200 WiFi Cable Modem Router Model C6220

8. To add a service or application that is not the list, select User Defined.

a. If you know that the application uses either TCP or UDP, select the appropriate

protocol; otherwise, select TCP/UDP (both).

b. Enter the starting port and ending port numbers:

If the service uses a single port number, enter that number in both fields.

To find out which port numbers the service or application uses, you can contact the
publisher of the application, ask user groups or newsgroups, or search on the
Internet.

9. Select a filtering option:

• Only This IP Address. Block services for a single computer.

• IP Address Range. Block services for a range of computers with consecutive IP

addresses on your network.

• All lP Addresses. Block services for all computers on your network.

10. Click the Add button.

Your settings are saved.

Control Access to the Internet User Manual33

AC1200 WiFi Cable Modem Router Model C6220

Schedule When to Block Internet Sites and Services

When you schedule blocking, the same schedule is used to block sites and to block services.
For information about how to specify what you want the modem router to block, see

Keywords to Block Internet Sites on page 30 and Block Services From the Internet on
page 31.

To schedule blocking:

1. Launch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

2. Type http://routerlogin.net or http://192.168.0.1.

A login window opens.

3. Enter the modem router user name and password.

Use

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 > Schedule.

The Schedule page displays.

5. Specify when to block keywords and services:

• Days to Block. Select the check box for each day that you want to block the

keywords or select the Every Day check box, which automatically selects the check
boxes for all days.

• Time of Day to Block. Select a start and end time in 24-hour format, or select All

Day for 24-hour blocking.

6. Select your time zone from the menu.

7. If you live in an area that uses daylight saving time, select the Automatically adjust for
daylight savings time check box.

8. Click the Apply button.

Your settings are saved.

Avoid Blocking on a Trusted Computer

You can exempt one trusted computer from blocking. The computer that you exempt must
use a fixed IP address. You can use the reserved IP address feature to specify the IP
address. See

Control Access to the Internet User Manual34

Manage LAN IP Addresses on page 57.

AC1200 WiFi Cable Modem Router Model C6220

To specify a trusted computer:

1. L

aunch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

2. T

ype http://routerlogin.net or http://192.168.0.1.

A login window opens.

3. Ente

4. Select AD

5. Scroll down and select the Allow trusted

6. In the Trusted IP Address field, enter the IP address of the trusted computer.

7. Click the Ap

r the modem router user name and password.

The user name is adm
password are case-sensitive.

The BASIC Home page displays.

VANCED > Security > Block Sites.

The Block Sites page displays.

ply button.

Your settings are saved.

in. The default password is password. The user name and

IP address to visit blocked sites check box.

Set Up Security Event Email Notifications

The modem router can email you its logs. The log records modem router activity and security

events such as attempts to access blocked sites or services.

To set up email notifications:

1. L

aunch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

2. T

ype http://routerlogin.net or http://192.168.0.1.

A login window opens.

3. Ente

Control Access to the Internet User Manual35

r the modem router user name and password.

The user name is adm
password are case-sensitive.

The BASIC Home page displays.

in. The default password is password. The user name and

AC1200 WiFi Cable Modem Router Model C6220

4. Select ADVANCED > Security > E-mail.

5. Select the Turn E-mail Notification On check box.

6. In

the Your Outgoing Mail Server field, enter the name of your ISP outgoing (SMTP) mail

server (such as mail.myISP.com).

You might be able to find this information in th

e configuration window of your email

program. If you leave this field blank, log and alert messages are not sent.

7. Enter th

e email address to which logs and alerts are sent in the Send to This E-mail

Address field.

This email address is also used for the From address. If

this field is blank, log and alert

messages are not sent.

8. If

your outgoing email server requires authentication, select the My Mail Server requires

authentication check box, and do the following:

a. In the

b. In the Password field,

o send alerts when someone attempts to visit a blocked site, select the Send Alerts

9. T

User Name field, type the user name for the outgoing email server.

type the password for the outgoing email server.

Immediately check box.

10. T

o send logs based on a schedule, specify these settings:

• From Send logs

• From the Day menu

• From the Ti

11. Click the Appl

y button.

according to this schedule menu, select the schedule type.

, select the day.

me menu, select the time, and select the am or pm radio button.

Your settings are saved.

Logs are sent automatically. If the log fills before the specified
is sent, it is cleared from the modem router memory. If the modem router cannot email the
log and the log buffer fills, the modem router overwrites the log.

Control Access to the Internet User Manual36

time, it is sent. After the log

5

5Share a USB Storage Device

Attached to the Modem Router

This chapter describes how to access and manage USB storage devices attached to your
modem router. You can share USB storage devices connected to the router. (If your storage
device uses special drivers, it is not compatible.)

Note: The USB port on the modem router can be used only to connect USB

storage devices like flash drives or hard drives, or a printer. Do not
connect computers, USB modems, CD drives, or DVD drives to the
modem router USB port.

This chapter contains the following sections:

• USB Device Requirements

• Connect a USB Storage Device to the Modem Router

• Control Access to the USB Drive

• Use FTP Within the Network

• View or Change Network Folders on a USB Drive

• Add a Network Folder on a USB Storage Device

• Edit a Network Folder on a USB Storage Device

• Approve USB Storage Devices

• Safely Remove a USB Storage Device

For more information about ReadySHARE features, visit netgear.com/readyshare.

37

AC1200 WiFi Cable Modem Router Model C6220

USB Device Requirements

The modem router works with most USB-compliant external flash and hard drives. For the
most up-to-date list of USB drives that the modem router supports, visit
http://kbserver.netgear.com/readyshare.

Some USB external hard drives and flash drives require you to load the drivers onto the
computer before the computer can access the USB device. Such USB devices do not work
with the modem router.

The modem router supports the following file system types for full read/write access:

• FAT16

• FAT32

• NTFS

• NTFS with compression format enabled

• Ext2

• Ext3

• Ext4

• XFS

• HFS

• HFS+

Connect a USB Storage Device to the Modem Router

ReadySHARE lets you access and share USB storage devices that are connected to the
appropriate modem router port. (If your USB storage device uses special drivers, it is not
compatible.)

Share a USB Storage Device Attached to
the Modem Router

User Manual38

AC1200 WiFi Cable Modem Router Model C6220

USB port

To connect a USB device:

1. I

nsert your USB storage drive into the USB port on the rear panel of the modem router.

2. If your USB storage device uses a power supply, connect it.

You must use the power supply when you connect the USB storage device to the router.

When you connect the USB drive to the modem router USB port, it might take up to two

tes before it is ready for sharing. By default, the USB drive is available to all

minu
computers on your local area network (LAN).

Access a USB Drive Connected to the Modem Router From a Windows Computer

To access a USB storage device from a Windows computer:

1. Con

2. If your USB storage device uses

3. Select Sta

nect a USB storage device to a USB port on your router.

a power supply, connect it.

You must use the power supply when you connect the USB storage device to the modem

uter.

ro

When you connect the USB storage device to the modem router’s port, it might take up to

wo minutes before it is ready for sharing. By default, the USB storage device is available

t
to all computers on your local area network (LAN).

rt > Run.

4. Ente

5. Click the OK butt

Share a USB Storage Device Attached to
the Modem Router

r \\readyshare in the dialog box.

on.

A window automatically opens and displays the files a

device.

nd folders on the USB storage

User Manual39

AC1200 WiFi Cable Modem Router Model C6220

Map a USB Device to a Windows Network Drive

To map a USB device to a Windows network drive:

1. Connect a USB storage device to a USB port on the router.

If your USB storage device uses a power supply, you must use it when you connect the
device to the router.

When you connect the USB storage device to the router’s port, it might take up to two
minutes before it is ready for sharing. By default, the device is available to all computers
on your local area network (LAN).

2. Select Start > Run.

3. Enter \\readyshare in the dialog box.

4. Click the OK button.

5. Right-click the USB device and select Map network drive.

6. Select the drive letter to map to the new network folder.

7. Click the Finish button.

The USB storage device is mapped to the drive letter that you specified.

8. To connect to the USB storage device as a different user, select the Connect using
different credentials check box, click the Finish button, and do the following:

a. Type the user name and password.

b. Click the OK button.

The USB drive is mapped to the drive letter that you specified.

Access a USB Storage Device That Is Connected to the Modem Router From a Mac

To access the device from a Mac:

1. Connect a USB storage device to a USB port on your router.

If your USB storage device uses a power supply, you must use it when you connect the
USB storage device to the router.

Share a USB Storage Device Attached to
the Modem Router

User Manual40

AC1200 WiFi Cable Modem Router Model C6220

When you connect the USB storage device to the router’s port, it might take up to two
minutes before it is ready for sharing. By default, the USB storage device is available to
all computers on your local area network (LAN).

2. On a Mac that is connected to the network, select Go > Connect to Server.

3. In the Server Address field, enter smb://readyshare.

4. When prompted, select the Guest radio button.

If you set up access control on the router and you allowed your Mac to access the
network, select the Registered User radio button and enter admin for the name and
password for the password. For more information about access control, see View
Devices Currently on the Network on page 83.

5. Click the Connect button.

A window automatically opens and displays the files and folders on the USB storage
device..

Control Access to the USB Drive

You can specify the device name, workgroups, and network folders for your USB device.

To specify the USB access settings:

1. Launch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

2. Type http://routerlogin.net or http://192.168.0.1.

A login window opens.

3. Enter the modem 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.

Share a USB Storage Device Attached to
the Modem Router

User Manual41

AC1200 WiFi Cable Modem Router Model C6220

4. Select ADVANCED > USB Storage > Advanced Settings.

5. Specify access to the USB storage device:

• Network Device Name. This is the n

to the modem router. The default is readyshare.

ame used to access the USB device connected

• Workgroup. If yo

workgroup name is displayed here. The name works only in an operating system that
supports NetBIOS, such as Microsoft Windows.

• Access Method. Select the

- Network Neighborhood/MacShare. Enabled by default.

- HTTP.
http://readyshare.routerlogin.net/shares to access the USB drive.

- HTTP (via Internet).

can type http://<public IP address/shares> (for example, http://1.1.10.102/shares)
or a URL domain name to access the USB drive over the Internet. This feature
supports file uploading only.

- FTP. Disab

- FTP (via Internet). Disabled by

can access the USB drive through FTP over the Internet. This feature supports
both downloading and uploading of files.

6. If

you changed the settings, click the Apply button.

Your settings are saved.

Enabled by default. You can type

u are using a Windows workgroup rather than a domain, the

check boxes for the access methods that you want:

Disabled by default. If you enable this feature, remote users

led by default.

default. If you select this check box, remote users

Use FTP Within the Network

File Transfer Protocol (FTP) lets you send and receive large files faster.

Share a USB Storage Device Attached to
the Modem Router

User Manual42

AC1200 WiFi Cable Modem Router Model C6220

To set up FTP access:

1. L

aunch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

2. T

ype http://routerlogin.net or http://192.168.0.1.

A login window opens.

3. Ente

4. Select AD

r the modem router user name and password.

The user name is adm
password are case-sensitive.

The BASIC Home page displays.

VANCED > USB Storage > Advanced Settings.

in. The default password is password. The user name and

5. Select the FTP check box.

6. Click the Ap

Your settings are saved.

ply button.

View or Change Network Folders on a USB Drive

You can view or change the network folders on the USB storage device.

To view or change network folders:

aunch a web browser from a WiFi-enabled computer or mobile device that is

1. L
connected to the network.

2. T

ype http://routerlogin.net or http://192.168.0.1.

Share a USB Storage Device Attached to
the Modem Router

User Manual43

AC1200 WiFi Cable Modem Router Model C6220

A login window opens.

3. Enter

the modem router user name and password.

The user name is ad

min. The default password is password. The user name and

password are case-sensitive.

The BASIC Home page displays.

4. Select A

DVANCED > USB Storage > Advanced Settings.

5. Scroll down to the Available Networks Folder section of the page, and adjust the following

settings:

• Share Name.

If only one device is connected, the default share name is

USB_Storage. (Some modem router models include more than one USB port.)

You can click the name or type it in the addre

ss field of your web browser. If Not
Shared is shown, the default share was deleted, and no other share for the root folder
exists. Click the link to change this setting.

• Read Access and Write Access. Show the

permissions and access controls on the
network folder. All – no password (the default) allows all users to access the network
folder. The password for admin is the same one that you use to log in to the modem
router.

• Folder Name. Full p

• Volume Name. V

• Total Space and Free Space. Show the

6. Click the Appl

y button.

ath of the network folder.

olume name from the storage device (either USB drive or HDD).

current utilization of the storage device.

Your settings are saved.

Share a USB Storage Device Attached to
the Modem Router

User Manual44

AC1200 WiFi Cable Modem Router Model C6220

Add a Network Folder on a USB Storage Device

You can add network folders on a USB storage device connected to the modem router USB
port.

To add a network folder:

1. L

aunch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

2. T

ype http://routerlogin.net or http://192.168.0.1.

A login window opens.

3. Ente

4. Select AD

5. Click the Edi

6. Click the Create

r the modem router user name and password.

The user name is adm
password are case-sensitive.

The BASIC Home page displays.

VANCED > ReadySHARE.

The USB Storage (Advanced Settings) p

t button.

Network Folder button.

If this window does not open, your web browser might be blocking pop-ups. If it is,
change the browser settings to allow pop-ups.

in. The default password is password. The user name and

age displays.

7. Complet

The user name (account name) for All – no passwo
the same one that is used to log in to the modem router. By default, it is password.

8. Click the Ap

The folder is added on the USB device.

Share a USB Storage Device Attached to
the Modem Router

e the fields.

ply button.

rd is guest. The password for admin is

User Manual45

AC1200 WiFi Cable Modem Router Model C6220

Edit a Network Folder on a USB Storage Device

You can edit network folders on a USB storage device connected to the modem router USB
port.

To edit a network folder:

1. Launch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

2. Type http://routerlogin.net or http://192.168.0.1.

A login window opens.

3. Enter the modem 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 > ReadySHARE.

The USB Storage (Advanced Settings) page displays.

5. Click the Edit button.

The Edit Network Folder window opens.

6. Change the settings in the fields as needed.

7. Click the Apply button.

Your settings are saved.

Approve USB Storage Devices

For more security, you can set up the modem router to share only USB storage devices that
you approve.

To approve USB devices:

1. Launch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

2. Type http://routerlogin.net or http://192.168.0.1.

A login window opens.

3. Enter the modem router user name and password.

Share a USB Storage Device Attached to
the Modem Router

User Manual46

AC1200 WiFi Cable Modem Router Model C6220

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 ADV

ANCED > Advanced Setup > USB Settings.

By default Enable any USB Device connection to the USB port radio is selected. This
setting lets you connect and access all your USB drives.

5. Select th

6. Click the Approved Devices but

e No radio button.

ton.

The approved and available USB devices display.

7. In the Available USB Devices list, select the drive that you want to approve.

8. Click the Ad

9. Select th

10. Click the Ap

d button.

e Allow only approved devices check box.

ply button.

Your change takes effect.

o work with another USB device, first click the Safely Remove USB Device button for the

11. T
currently connected USB device.

12. Conn

Share a USB Storage Device Attached to
the Modem Router

ect the other USB device, and repeat this process.

User Manual47

AC1200 WiFi Cable Modem Router Model C6220

Safely Remove a USB Storage Device

Before you physically disconnect a USB storage device from the modem router USB port, log
in to the modem router and take the USB storage device offline.

To remove a USB storage device safely:

1. Launch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

2. Type http://routerlogin.net or http://192.168.0.1.

A login window opens.

3. Enter the modem 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 USB Storage > Basic Settings.

The USB Storage page displays.

5. Click the Safely Remove USB Device button.

This takes the drive offline.

6. Physically disconnect the USB drive.

Share a USB Storage Device Attached to
the Modem Router

User Manual48

6

6Specify Network Settings

This chapter includes the following sections:

• View or Change the WAN Settings

• Change the MTU Size

• Set Up a Default DMZ Server

• Change the Modem Router’s Device Name

• Change the LAN TCP/IP Settings

• Specify the IP Addresses That the Modem Router Assigns

• Manage LAN IP Addresses

• Use the WPS Wizard for WiFi Connections

• Specify Basic WiFi Settings

• Change the WiFi Security Option

• Set Up a WiFi Guest Network

• Control the WiFi Radios

• Specify WPS Settings

• Set Up a WiFi Access List

• Dynamic DNS

• Improve Network Connections With Universal Plug-N-Play

49

AC1200 WiFi Cable Modem Router Model C6220

View or Change the WAN Settings

You can view the wide area network (WAN) settings for the Internet port. You can set up a
DMZ (demilitarized zone) server, change the maximum transmit unit (MTU) size, and enable
the modem router to respond to a ping to its WAN (Internet) port.

To view or change the WAN settings:

1. Laun

2. Ty

3. Enter

4. Select ADVANCED > Setup > WAN Setup

ch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

pe http://routerlogin.net or http://192.168.0.1.

A login window opens.

the modem router user name and password.

The user name is ad
password are case-sensitive.

The BASIC Home page displays.

min. The default password is password. The user name and

.

iew or change the following settings:

5. V

• Disa

• Disable Port Scan and DoS Protection. DoS prote

• Default DMZ Server. This fe

• Respond to Ping on Internet Port. This fea

Specify Network Settings User Manual50

ble IPv4 Firewall Protection.

denial of service attacks such as Syn flood, Smurf Attack, Ping of Death, and many
others. Select this check box only in special circumstances.

ature is sometimes helpful when you are playing online

games or videoconferencing, but it makes the firewall security less effective. See
Up a Default DMZ Server on page 53.

discovered. Use this feature only as a diagnostic tool or if there is a specific reason.

ction protects your LAN against

Set

ture allows your modem router to be

AC1200 WiFi Cable Modem Router Model C6220

• Disable IGMP Proxying. IGMP proxying allows a computer on the local area network

(LAN) to receive the multicast traffic it is interested in from the Internet. If you do not
need this feature, you can select this check box to disable it.

• MTU Size (in bytes). The normal MTU (maximum transmit unit) value for most

Ethernet networks is 1500 bytes, or 1492 bytes for PPPoE connections. Change the
MTU only if you are sure that it is necessary for your ISP connection. See
the MTU Size on page 51.

• Disable SIP ALG. Some VoIP applications do not work well with the SIP ALG.

Selecting this check box to turn off the SIP ALG might help your VoIP devices to
create or accept a call through the modem router.

6. Click the Apply button.

Your settings are saved.

Change

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 are experiencing 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.

Specify Network Settings User Manual51

AC1200 WiFi Cable Modem Router Model C6220

To change the MTU size:

1. Laun

ch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

pe http://routerlogin.net or http://192.168.0.1.

2. Ty

A login window opens.

3. Enter

the modem router user name and password.

The user name is ad

min. The default password is password. The user name and

password are case-sensitive.

The BASIC Home page displays.

4. Select A

DVANCED > Setup > WAN Setup.

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

6. Click the Appl

y button.

Your settings are saved.

If you suspect an MTU problem, a common solution is to cha

nge 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 1. 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 use large

Specify Network Settings User Manual52

email attachments, for example.

AC1200 WiFi Cable Modem Router Model C6220

WARNING:

Table 1. Common MTU sizes (continued)

MTU Application

1436 Used in PPTP environments or with VPN.

1400 Maximum size for AOL DSL.

576 Typical value to connect to dial-up ISPs.

Set Up a Default DMZ Server

The default DMZ server feature is helpful when you are using some online games and
videoconferencing applications that are incompatible with Network Address Translation
(NAT). The modem router is programmed to recognize some of these applications and to
work correctly with them, but other applications might not function well. In some cases, one
local computer can run the application correctly if the IP address for that computer is entered
as the default DMZ server.

DMZ servers pose a security risk. A computer designated as the
default DMZ server loses much of the protection of the firewall and
is exposed to exploits from the Internet. If compromised, the DMZ
server computer can be used to attack other computers on your
network.

The modem router usually detects and discards incoming traffic from the Internet that is not a
response to one of your local computers or a service that you configured on the Port
Forwarding/Port Triggering page. Instead of discarding this traffic, the modem router can
forward the traffic to one computer on your network. This computer is called the default DMZ
server.

To set up a default DMZ server:

1. Launch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

2. Type http://routerlogin.net or http://192.168.0.1.

A login window opens.

3. Enter the modem 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.

Specify Network Settings User Manual53

AC1200 WiFi Cable Modem Router Model C6220

The WAN Setup page displays.

5. Select the Defaul

ype the IP address.

6. T

7. Click the Appl

Your settings are saved.

t DMZ Server check box.

y button.

Change the Modem Router’s Device Name

The modem router’s device name is C6220. This device name displays in a file manager
when you browse your network.

To change the modem router’s device name:

1. Laun

2. Ty

3. Enter

ch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

pe http://routerlogin.net or http://192.168.0.1.

A login window opens.

the modem router user name and password.

The user name is ad
password are case-sensitive.

min. The default password is password. The user name and

The BASIC Home page displays.

4. Select A

5. In the Device Name field, type a new name.

6. Click the Appl

Your settings are saved.

DVANCED > Setup > LAN Setup.

y button.

Specify Network Settings User Manual54

AC1200 WiFi Cable Modem Router Model C6220

Change the LAN TCP/IP Settings

The modem router is preconfigured to use private IP addresses on the LAN side and to act
as a DHCP server. The modem router’s default LAN IP configuration is as follows:

• LAN IP address. 19

• Subnet mask. 255

These addresses are part of the designated priva
and are suitable for most applications. If your network requires a different IP addressing
scheme, you can change these settings.

You might want to change these settings if you need a specific IP subnet that one or more

evices on the network uses or if you use competing subnets with the same IP scheme.

d

To change the LAN TCP/IP settings:

1. L

aunch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

2. T

ype http://routerlogin.net or http://192.168.0.1.

A login window opens.

3. Ente

4. Select AD

r the modem router user name and password.

The user name is adm
password are case-sensitive.

The BASIC Home page displays.

VANCED > Setup > LAN Setup.

2.168.0.1

.255.255.0

te address range for use in private networks

in. The default password is password. The user name and

5. In the IP Address field, type the IP address.

6. In the IP Subne

Specify Network Settings User Manual55

t Mask field type the subnet mask.

AC1200 WiFi Cable Modem Router Model C6220

The IP address and subnet mask identify which addresses are local to a specific device
and which must be reached through a gateway or modem router.

7. Click the Apply button.

Your settings are saved.

If you changed the LAN IP address of the modem router, you are disconnected when this
change takes effect.

To reconnect, close your browser, relaunch it, and log in to the modem router.

Specify the IP Addresses That the Modem Router Assigns

By default, the modem router acts as a Dynamic Host Configuration Protocol (DHCP) server.
The modem 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
modem router.

These addresses must be part of the same IP address subnet as the modem router’s LAN IP
address. Using the default addressing scheme, define a range between 192.168.0.2 and

192.168.0.254, although you can save part of the range for devices with fixed addresses.

To specify the pool of IP addresses that the modem router assigns:

1. Launch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

2. Type http://routerlogin.net or http://192.168.0.1.

A login window opens.

3. Enter the modem 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.

Specify Network Settings User Manual56

AC1200 WiFi Cable Modem Router Model C6220

4. Select ADVANCED > Setup > LAN Setup.

5. Specify the range of IP addresses that the modem router assigns:

a. I

n the Starting IP Address field, type the lowest number in the range.

This IP address must be in the same subnet as the modem router.

n the Ending IP Address field, type the number at the end of the range of IP

b. I

addresses.

This IP address must be in the same subnet as the modem router.

6. Click the Ap

Your settings are saved.

The modem router delivers the following p

• An

• Sub

• Gateway IP add

• DNS se

IP address from the range that you defined

net mask

ply button.

arameters to any LAN device that requests DHCP:

ress (the modem router’s LAN IP address)

rver IP address (the modem router’s LAN IP address)

Manage LAN IP Addresses

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 modem router’s DHCP server.
Assign reserved IP addresses to computers or servers that require permanent IP settings.

Specify Network Settings User Manual57

AC1200 WiFi Cable Modem Router Model C6220

Reserve a LAN IP Address

To reserve an IP address:

1. Launch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

2. Type http://routerlogin.net or http://192.168.0.1.

A login window opens.

3. Enter the modem 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 > LAN Setup.

The LAN Setup page displays.

5. In the Address Reservation section, click the Add button.

6. In the IP Address field, type the IP address to assign to the computer or server.

Choose an IP address from the modem router’s LAN subnet, such as 192.168.0.x.

7. 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 page and paste it here.

8. Click the Apply button.

The reserved address is entered into the table.

The reserved address is not assigned until the next time the computer contacts the modem
router’s DHCP server. Reboot the computer, or access its IP configuration and force a DHCP
release and renew.

Edit a Reserved Address Entry

To edit a reserved address entry:

1. Launch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

2. Type http://routerlogin.net or http://192.168.0.1.

A login window opens.

3. Enter the modem router user name and password.

The user name is admin. The default password is password. The user name and
password are case-sensitive.

Specify Network Settings User Manual58

AC1200 WiFi Cable Modem Router Model C6220

The BASIC Home page displays.

4. Select ADVANCED > Setup > LAN Setup.

The LAN Setup page displays.

5. Select the radio button next to the reserved address.

6. Click the Edit button.

The Edit page displays.

7. Change the settings.

8. Click the Apply button.

Your settings are saved.

Delete a Reserved Address Entry

To delete a reserved address entry:

1. Launch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

2. Type http://routerlogin.net or http://192.168.0.1.

A login window opens.

3. Enter the modem 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 > LAN Setup.

The LAN Setup page displays.

5. Select the radio button next to the reserved address.

6. Click the Delete button.

The address is removed.

Use the WPS Wizard for WiFi Connections

The WPS Wizard helps you add a WiFi computer or device to your WiFi network without
typing the WiFi password.

To use the WPS Wizard:

1. Launch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

Specify Network Settings User Manual59

AC1200 WiFi Cable Modem Router Model C6220

2. Type http://routerlogin.net or http://192.168.0.1.

A login window opens.

3. Enter the modem 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 > WPS Wizard.

A page displays that explains WPS.

5. Click the Next button.

The WPS page displays.

6. Select the radio button for the setup method that you want to use.

• Push button. Click the WPS button on this page.

• PIN Number. The page adjusts. Enter the client security PIN, and click the Next

button.

7. Within two minutes, go to the client device and use its WPS software to connect to the WiFi

network.

The WPS process automatically sets up your WiFi computer with the network password
when it connects. The modem router WPS page displays a confirmation message.

Specify Basic WiFi Settings

The modem router comes with preset security. This means that the WiFi network name
(SSID), network key (password), and security option (encryption protocol) are preset in the
factory. You can find the preset SSID and password on the modem router label. The preset
SSID and password are uniquely generated for every device to maximize your WiFi security.

If you change your preset security settings, make a note of the new settings and store it in a
safe place where you can easily find it.

If you use a WiFi computer to change the WiFi network name (SSID) or other WiFi security
settings, you are disconnected when you click the Apply button. To avoid this problem, use a
computer with a wired connection to access the modem router.

To specify basic WiFi settings:

1. Launch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

2. Type http://routerlogin.net or http://192.168.0.1.

A login window opens.

3. Enter the modem router user name and password.

Specify Network Settings User Manual60

AC1200 WiFi Cable Modem Router Model C6220

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 W

ireless.

5. From the Region menu, select your region.

In some locations, you cannot change this setting.

o turn off the WiFi radios, scroll down and clear the Enable WiFi Gateway radio check

6. T
box.

If you clear this check box, you cannot use WiFi to connect to the modem router.

o control the SSID broadcast, select or clear the Enable SSID Broadcast check box.

7. T

When this check box is selected, the modem router broadcasts its network name (SSID)
so tha

t the name displays when you scan for local WiFi networks on your WiFi-enabled

computer or mobile device.

o change the network name (SSID), type a new name in the Name (SSID) field.

8. T

The name can be up to 32 characters long and it is case-sensitive. The default SSID is
ra

ndomly generated and is on the modem router label. If you change the name, make

sure to write down the new name and keep it in a safe place.

o change the WiFi channel, select a number from the Channel menu.

9. T

In some regions, not all channels are available. Do not change the channel unless you
e

xperience interference (shown by lost connections or slow data transfers). If this

happens, experiment with different channels to see which is the best.

When you use multiple access points, it is be

tter if adjacent access points use different
channels to reduce interference. The recommended channel spacing between adjacent
access points is four channels (for example, use Channels 1 and 5, or 6 and 10).

o change the mode, select it from the Mode menu.

10. T

Specify Network Settings User Manual61

AC1200 WiFi Cable Modem Router Model C6220

Up to 145 Mbps is the default setting, which allows 802.11n and 802.11g WiFi devices to
join the network. g & b supports up to 54 Mbps. The 300-Mbps setting allows 802.11n
devices to connect at this speed.

11. Click the Apply button.

Your settings are saved.

If you used a WiFi network connection and you changed the SSID, you are disconnected
from the network.

12. Make sure that you can use WiFi to connect to the network with its new settings.

If you cannot connect, check the following:

• Is your WiFi-enabled computer or mobile device connected to another WiFi network in
your area? Some WiFi devices automatically connect to the first open network without
WiFi security that they discover.

• Is your WiFi-enabled computer or mobile device trying to connect to your network with
its old settings (before you changed the settings)? If so, update the WiFi network
selection in your WiFi-enabled computer or mobile device to match the current
settings for your network.

Change the WiFi Security Option

Your modem router comes with preset WPA2 or WPA security. The password that you enter to
connect to your network is unique to your modem router and is on the modem router label. We

recommend that you do not disable security.

To change the WPA settings:

1. Launch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

2. Type http://routerlogin.net or http://192.168.0.1.

A login window opens.

3. Enter the modem 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 WiFi.

The Wireless Settings page displays.

5. Under Security Options, select a radio button for one of the following WPA options:

• WPA2-PSK [AES]

• WPA-PSK [TKIP] + WPA2-PSK [AES]

Specify Network Settings User Manual62

AC1200 WiFi Cable Modem Router Model C6220

The WPA2 options use the newest standard for the strongest security, but some older
computers and WiFi devices cannot use WPA2. By default, the WPA-PSK [TKIP] +
WPA2-PSK [AES] radio button is selected so that new or old computers and WiFi
devices can connect to the WiFi network by using either WPA2 or WPA security.

The Passphrase field displays.

6. In the Passphrase field, enter the network key (password) that you want to use.

It is a text string from 8 to 63 characters.

7. Write down the new password and keep it in a secure place for future reference.

8. Click the Apply button.

Your settings are saved.

Set Up a WiFi Guest Network

A guest network allows visitors at your home to use the Internet without using your WiFi
security key. You can add a guest network to each WiFi network: 2.4 GHz b/g/n and

5.0 GHz a/n.



To set up a guest network:

1. Launch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

2. Type http://routerlogin.net or http://192.168.0.1.

A login window opens.

3. Enter the modem 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.

Specify Network Settings User Manual63

AC1200 WiFi Cable Modem Router Model C6220

4. Select Guest Network.

5. Select any of the following WiFi settings:

• Enable Guest Network. W

hen this check box is selected, the guest network is

enabled, and guests can connect to your network using the SSID of this profile.

• Enable SSID Broadcast. If th

is check box is selected, the WiFi modem router
broadcasts its name (SSID) to all WiFi stations. Stations with no SSID can adopt the
correct SSID for connections to this modem router.

• Allow guest to see each other and access my local network. I

f this check box is
selected, anyone who connects to this SSID can access to your local network, not just
the Internet.

6. Give the guest net

The guest network name is case-sensitive and can be

work a name.

up to 32 characters. You then
manually configure the WiFi devices in your network to use the guest network name in
addition to the main SSID.

7. Select a se

curity option.

The WPA2 options use the newest standard for the strongest security, but some older
compute

rs and WiFi devices cannot use it. We recommend that you select the WPA-PSK
[TKIP] + WPA2-PSK [AES] radio button. This setting protects your WiFi network and lets
computers and WiFi devices connect to the WiFi network by using either WPA2 or WPA
security.

8. Click the Appl

y button.

Your settings are saved.

Specify Network Settings User Manual64

AC1200 WiFi Cable Modem Router Model C6220

Control the WiFi Radios

The modem router internal WiFi radios broadcasts signals in the 2.4 GHz range and 5 GHz
range. By default, these radios are on so that you can use WiFi to connect to the modem
router. When the WiFi radios are off, you can still use an Ethernet cable for a LAN connection
to the modem router.

You can turn the WiFi radios on and off with the WiFi On/Off button on the modem router, or
you can log in to the modem router and enable or disable the WiFi radios. If you are close to
the modem router, it might be easier to press its WiFi On/Off button. If you are away from the
modem router or you already logged in, it might be easier to enable or disable the radios.

Use the WiFi On/Off Button

To turn the WiFi radios off and on with the WiFi On/Off button:

Press the WiFi On/Off button on the modem router for two seconds.

If you turned off the WiFi radios, the WiFi On/Off LED and the WPS LED turn off. If you
turned on the WiFi radios, the WiFi On/Off LED and the WPS LED light.

Enable or Disable the WiFi Radios

If you used the WiFi On/Off button to turn off the WiFi radios, you can’t log in to the modem
router to turn them back on. You must press the WiFi On/Off button again for two seconds to
turn the WiFi radios back on.

To enable or disable the WiFi radios:

1. Launch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

2. Type http://routerlogin.net or http://192.168.0.1.

A login window opens.

3. Enter the modem 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.

Specify Network Settings User Manual65

AC1200 WiFi Cable Modem Router Model C6220

4. Select ADVANCED > Advanced Setup > Wireless Settings.

5. Select or clear the Enable WiFi Gateway Radio check box.

Clearing this check box turns off the WiFi feature of the modem router.

6. Click the App

If you turned off the WiFi radios, the WiFi On/Of
turned on the WiFi radios, the WiFi On/Off LED and the WPS LED light.

ly button.

f LED and the WPS LED turn off. If you

Specify WPS Settings

Wi-Fi Protected Setup (WPS) lets you join the WiFi network without typing the WiFi
password.

To specify WPS settings:

1. Laun

2. Ty

3. Enter

ch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

pe http://routerlogin.net or http://192.168.0.1.

A login window opens.

the modem router user name and password.

The user name is ad
password are case-sensitive.

min. The default password is password. The user name and

The BASIC Home page displays.

4. Select ADV

The Advanced Wireless Settings page displays.

Specify Network Settings User Manual66

ANCED > Advanced Setup > Wireless Settings.

AC1200 WiFi Cable Modem Router Model C6220

The Router’s PIN field displays the PIN that you use on a registrar (for example, from the
Network Explorer on a Vista Windows computer) to configure the modem router’s WiFi
settings through WPS.

5. (Optional) Select or clear the Disable Router’s PIN check box.

The PIN function might temporarily be disabled when the modem router detects
suspicious attempts to break into the modem router’s WiFi settings by using the modem
router’s PIN through WPS. You can manually enable the PIN function by clearing the

Disable Router’s PIN check box.

6. (Optional) Select or clear the Keep Existing Wireless Settings check box.

By default, the Keep Existing Wireless Settings check box is selected. We recommend
that you leave this check box selected.

If you clear this check box, the next time a new WiFi client uses WPS to connect to the
modem router, the modem router WiFi settings change to an automatically generated
random SSID and security key.

7. Click the Apply button.

Your settings are saved.

Set Up a WiFi Access List

By default, any WiFi computer or device that is configured with the correct SSID is allowed
access to your WiFi network. For increased security, allow only specific WiFi computers and
devices to access the WiFi network based on their MAC addresses.

To set up WiFi access:

1. Launch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

2. Type http://routerlogin.net or http://192.168.0.1.

A login window opens.

3. Enter the modem 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 > Wireless Settings.

The Advanced Wireless page displays.

5. Click the Set Up Access List button.

The Wireless Card Access List displays.

Specify Network Settings User Manual67

AC1200 WiFi Cable Modem Router Model C6220

6. Select the Turn Access Control On check box.

7. Click the Set Up Access List button.

8. In the Network Profiles (2.4 GHz b/g/n) list, select the radio button for the SSID (WiFi

network) that you want to use the access list for.

9. Select the T

urn Access Control On check box and select one of the following radio

buttons:

• Allow List. Allow compute

• Deny List. Deny

WiFi access to computers and devices in the list.

rs and devices in the list to connect with WiFi.

10. Click the Add but

The page displays a list of

11. T

o add a device from the Available Wireless Cards list, do the following:

a. Select the

Specify Network Settings User Manual68

ton.

available WiFi devices.

device.

AC1200 WiFi Cable Modem Router Model C6220

b. Click the Add button.

The device displays in the Wireless Card Access list.

12. To add a computer or device that is not in the list, do the following:

a. Type a name in the Device Name field.

b. Type the MAC address in the MAC Address field.

The MAC address is found on the computer or device.

c. Click the Add button.

The device displays in the Wireless Card Access list.

13. Click the Apply button.

Your settings are saved.

Dynamic DNS

If your Internet service provider (ISP) gave you a permanently assigned IP address, you can
register a domain name and link that name with your IP address using public Domain Name
Servers (DNS). However, if your Internet account uses a dynamically assigned IP address,
you do not know in advance what your IP address is, and the address can change frequently.
In this case, you can use a commercial Dynamic DNS service. This type of service lets you
register your domain to their IP address and forwards traffic directed at your domain to your
frequently changing IP address.

If your ISP assigns a private WAN IP address (such as 192.168.x.x or 10.x.x.x), the Dynamic
DNS service does not work because private addresses are not routed on the Internet.

Your modem router contains a client that can connect to the Dynamic DNS service that
DynDNS.org provided. First visit their website at
and host name that you configure in the modem router. Then, whenever your ISP-assigned
IP address changes, your modem router automatically contacts the Dynamic DNS service
provider, logs in to your account, and registers your new IP address.

To set up Dynamic DNS:

1. Launch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

2. Type http://routerlogin.net or http://192.168.0.1.

A login window opens.

www.dyns.com/dyn and obtain an account

3. Enter the modem 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.

Specify Network Settings User Manual69

AC1200 WiFi Cable Modem Router Model C6220

4. Select ADVANCED > Advanced Setup > Dynamic DNS.

5. Register for an account with one of the Dynamic DNS service providers whose URLs display
in the Service Provider list.

6. Select the Use a

Dynamic DNS Service check box.

7. Select the URL for

8. T

ype the host name (or domain name) that your Dynamic DNS service provider gave you.

9. T

ype the user name for your Dynamic DNS account.

This name is the name that you use to log in to your a

ype the password (or key) for your Dynamic DNS account.

10. T

11. Click the Appl

Your settings are saved.

your Dynamic DNS service provider.

ccount, not your host name.

y button.

Improve Network Connections With Universal Plug-N-Play

Universal Plug-N-Play (UPnP) helps devices, such as Internet appliances and computers,
access the network and connect to other devices as needed. UPnP devices can
automatically discover the services from other registered UPnP devices on the network.

If you use applications such as multiplayer ga
communications such as instant messaging or remote assistance (a feature in Windows XP),
enable UPnP.

ming, peer-to-peer connections, or real-time

To enable Universal Plug-N-Play:

1. Laun

2. Ty

Specify Network Settings User Manual70

ch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

pe http://routerlogin.net or http://192.168.0.1.

AC1200 WiFi Cable Modem Router Model C6220

A login window opens.

3. Ente

r the modem router user name and password.

The user name is adm

in. The default password is password. The user name and

password are case-sensitive.

The BASIC Home page displays.

4. Select ADV

ANCED > Advanced Setup > UPnP.

5. Select the Turn UPnP O n check box.

By default, this check box is selected. If the Tu

rn UPn P On check box is cleared, the

modem router does not allow any device to automatically control router resources, such
as port forwarding.

6. T

ype the advertisement period in minutes.

The advertisement period specifies how often the m

odem router broadcasts its UPnP
information. This value can range from 1 to 1440 minutes. The default period is 30
minutes. Shorter durations ensure that control points use the current device status at the
expense of more network traffic. Longer durations can compromise the freshness of the
device status, but can significantly reduce network traffic.

7. T

ype the advertisement time to live in hops.

The time to live for the advertisement is measu

red in hops (steps) for each UPnP packet
sent. Hops are the steps a packet takes between routers. The number of hops can range
from 1 to 255. The default value for the advertisement time to live is 4 hops, which should
be fine for most home networks. If you notice that some devices are not being updated or
reached correctly, it might be necessary to increase this value.

8. Click the Ap

The UPnP Portmap Table displays the IP address of

ply button.

each UPnP device that is accessing
the modem router and which ports (internal and external) that device opened. The UPnP
Portmap Table also displays what type of port is open and whether that port is still active
for each IP address.

o refresh the information in the UPnP Portmap Table, click the Refresh button.

9. T

Specify Network Settings User Manual71

7

7Manage Your Network

This chapter describes the modem router settings for administering and maintaining your
modem router and home network.

This chapter includes the following sections:

• View Modem Router Status

• Reboot the Modem Router

• Change the Router Mode

• View and Manage Logs of Modem Router Activity

• Manage the Modem Router Configuration File

• Change the admin Password

• View Event Logs

• Run the Ping Utility

• View WiFi Access Points in Your Area

• View or Change the Modem Router WiFi Channel

• Remote Management

• Control the LED Settings

72

AC1200 WiFi Cable Modem Router Model C6220

Scroll to view more

View Modem Router Status

To view modem router status and usage information:

aunch a web browser from a WiFi-enabled computer or mobile device that is

1. L
connected to the network.

2. T

ype http://routerlogin.net or http://192.168.0.1.

A login window opens.

nter the modem router user name and password.

3. E

The user name is adm
password are case-sensitive.

The BASIC Home page displays.

4. Select AD

VANCED.

in. The default password is password. The user name and

View Cable Information

To view modem router cable information:

aunch a web browser from a WiFi-enabled computer or mobile device that is

1. L
connected to the network.

2. T

ype http://routerlogin.net or http://192.168.0.1.

A login window opens.

nter the modem router user name and password.

3. E

The user name is adm
password are case-sensitive.

Manage Your Network User Manual73

in. The default password is password. The user name and

AC1200 WiFi Cable Modem Router Model C6220

The BASIC Home page displays.

4. Select ADVANCED.

The ADVANCED Home page displays.

The Cable Information pane displays the following information:

• Hardware Version. The modem router model.

• Firmware Version. The version of the modem router firmware. It changes if you

upgrade the modem router firmware.

• Cable Modem Serial Number. The serial number of the cable modem.

• CM Certificate. The status of the cable modem certificate. If Not installed displays as

the status, contact your Internet service provider.

•CM MAC. The MAC address of the cable modem.

• LAN Port. The MAC address of LAN port 1. The following information also displays:

- MAC Address. The Media Access Control address. This address is the unique

physical address that the Ethernet (LAN) port of the modem router uses.

- IP Address. The IP address that the Ethernet (LAN) port of the modem router
uses. The default is 192.168.0.1.

- DHCP Server. Identifies whether the built-in DHCP server of the modem router is
active for the LAN-attached devices.

For information about using the Reboot button, see Reboot the Modem Router on page 76.

View Internet Port Information

To view modem router Internet port information:

1. Launch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

2. Type http://routerlogin.net or http://192.168.0.1.

A login window opens.

3. Enter the modem 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.

The ADVANCED Home page displays.

The Internet Port pane displays these WAN Internet port settings:

• MAC Address. The MAC address of the WAN Internet port.

• IP Address/Mask. The IP address of the WAN Internet port.

Manage Your Network User Manual74

AC1200 WiFi Cable Modem Router Model C6220

• Connection. The type of WAN Internet port connection.

• Default Gateway. The IP address of the default gateway.

• Domain Name Server. The IP address of the Domain Name Server.

View WiFi Settings

To view WiFi settings:

1. Launch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

2. Type http://routerlogin.net or http://192.168.0.1.

A login window opens.

3. Enter the modem 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.

The ADVANCED Home page displays.

The WiFi Settings (2.4 GHz) and WiFi Settings (5 GHz) panes display the following
information:

• Name (SSID). The WiFi network name (SSID) that the modem router uses.

•Region. The geographic region where the modem router is being used. It is illegal to

use the WiFi features of the modem router in some parts of the world.

• Channel. The operating channel of the WiFi port being used.

• Mode. The WiFi communication mode settings for 2.4 GHz are Up to 54 Mbps, 145
Mbps (the default), and 300 Mbps, and for 5 GHz Up to 173 Mbps, 400 Mbps, and
867 Mbps (the default).

•WiFi AP. Indicates whether the modem router WiFi radios are on or off. If the WiFi

radios are turned off, the WiFi On/Off LED on the front panel is off.

• Broadcast Name. Indicates whether the modem router is broadcasting its SSID.

• WiFi Isolation. Indicates if WiFi isolation is enabled. When WiFi isolation is enabled,

WiFi clients can connect to the Internet, but cannot access each other or access
Ethernet devices on the network.

• Wi-Fi Protected Setup. Indicates whether Wi-Fi Protected Setup is configured for
this network.

Manage Your Network User Manual75

AC1200 WiFi Cable Modem Router Model C6220

Reboot the Modem Router

Rebooting the modem router disconnects all computers and mobile devices from the modem
router’s network.

To reboot the modem router:

1. Laun

2. Ty

3. Enter th

4. Select AD

ch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

pe http://routerlogin.net or http://192.168.0.1.

A login window opens.

e modem router user name and password.

The user name is ad
password are case-sensitive.

The BASIC Home page displays.

VANCED.

min. The default password is password. The user name and

5. In the Cable Information pane, click the Reboot button.

A confirmation message displays.

6. Click the OK b

The modem router reboots.

Manage Your Network User Manual76

utton.

AC1200 WiFi Cable Modem Router Model C6220

Change the Router Mode

By default, the modem router is in router mode. This means that it works both as a modem
and as a router. You can share the Internet connection without using another router or
gateway. If you want to connect a gateway or router to the modem router, you must log in to
the modem router and change its Router Mode setting.

To change the router mode:

1. L

aunch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

2. T

ype http://routerlogin.net or http://192.168.0.1.

A login window opens.

nter the modem router user name and password.

3. E

The user name is adm
password are case-sensitive.

The BASIC Home page displays.

4. Select AD

5. Select one of the radio buttons:

•Yes. This is the

Network Address Translation (NAT).

•No.
from the Internet service provider.

6. Click the Ap

Your settings are saved.

VANCED > Administration > Router Mode.

With this setting, the modem router works as a bridge and obtains IP addresses

ply button.

in. The default password is password. The user name and

default setting. The modem router performs router functions such as

View and Manage Logs of Modem Router Activity

The log is a detailed record of website access and router activity. Up to 256 entries are stored
in the log. Log entries display only when keyword blocking is enabled. No log entries are
made for the trusted LAN client.

Manage Your Network User Manual77

AC1200 WiFi Cable Modem Router Model C6220

To view and manage logs:

1. Laun

ch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

pe http://routerlogin.net or http://192.168.0.1.

2. Ty

A login window opens.

3. Enter th

The user name is ad

e modem router user name and password.

min. The default password is password. The user name and

password are case-sensitive.

The BASIC Home page displays.

4. Select AD

VANCED > Administration > Logs.

The log screen shows the following information:

• Description. The actio

• Count. The

number of occurences.

• Last Occurrence. The d

•Target. The

name or IP address of the website or news group visited or to which

n that occured.

ate and time the log entry was recorded.

access was attempted.

• Source. Th

5. T

o customize the log, clear or select the check boxes at the bottom of the page.

6. T

o save your changes, click the Apply button.

7. T

o refresh the log screen, click the Refresh button.

o clear the log entries, click the Clear Log button.

8. T

9. T

o send the log immediately, click the Send Log button.

Manage Your Network User Manual78

e source IP address of the initiating device for this log entry.

AC1200 WiFi Cable Modem Router Model C6220

Manage the Modem Router Configuration File

The configuration settings of the modem router are stored within the modem router in a
configuration file. You can back up (save) this file to your computer, restore it, or reset it to the
factory default settings.

Back Up Settings

To back up the modem router’s configuration settings:

aunch a web browser from a WiFi-enabled computer or mobile device that is

1. L
connected to the network.

2. T

ype http://routerlogin.net or http://192.168.0.1.

A login window opens.

nter the modem router user name and password.

3. E

The user name is adm
password are case-sensitive.

The BASIC Home page displays.

4. Select ADV

5. Click the Back Up button.

6. W

hen prompted, specify a location on your network.

A copy of the current settings is saved in the location you specified.

ANCED > Administration > Backup Settings.

in. The default password is password. The user name and

Restore Configuration Settings

To restore configuration settings that you backed up:

aunch a web browser from a WiFi-enabled computer or mobile device that is

1. L
connected to the network.

Manage Your Network User Manual79

AC1200 WiFi Cable Modem Router Model C6220

WARNING:

2. Type http://routerlogin.net or http://192.168.0.1.

A login window opens.

3. Enter the modem 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 > Administration > Backup Settings.

The Backup Settings page displays.

5. Click the Browse button to find and select the .cfg file.

6. Click the Restore button.

The file is uploaded to the modem router and the modem router reboots.

Do not interrupt the reboot process.

Erase the Current Configuration Settings

You can erase the current configuration and restore the factory default settings. You might
want to do this if you move the modem router to a different network. (For more information,
see

Factory Default Settings on page 108.)

To erase the configuration settings:

1. Launch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

2. Type http://routerlogin.net or http://192.168.0.1.

A login window opens.

3. Enter the modem 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 > Administration > Backup Settings.

The Backup Settings page displays.

5. Click the Erase button.

The factory default settings are restored. The user name is admin, the password is password,
and the LAN IP address is 192.168.0.1. DHCP is enabled.

Manage Your Network User Manual80

AC1200 WiFi Cable Modem Router Model C6220

Change the admin Password

You can the default password that is used to log in to the modem router with the user name
admin. This password is not the one that you use for WiFi access. The label on your modem
router shows your unique WiFi network name (SSID) and password for WiFi access.

Note: Be sure to change the modem router login password to a secure

password. The ideal password contains no dictionary words from any
language and contains uppercase and lowercase letters, numbers,
and symbols. It can be up to 30 characters.

To set the password for the user name admin:

aunch a web browser from a WiFi-enabled computer or mobile device that is

1. L
connected to the network.

2. T

ype http://routerlogin.net or http://192.168.0.1.

A login window opens.

nter the modem router user name and password.

3. E

The user name is adm
password are case-sensitive.

The BASIC Home page displays.

4. Select ADV

5. Type the old password.

ANCED > Administration > Set Password.

in. The default password is password. The user name and

ype the new password in the Set Password field.

6. T

7. T

ype the new password in the Repeat New Password field.

8. Select securit

9. Click the Ap

Manage Your Network User Manual81

y questions and enter the answers.

ply button.

AC1200 WiFi Cable Modem Router Model C6220

Your settings are saved.

View Event Logs

Event logs capture important modem router events.

To view the event logs:

1. Laun

2. Ty

3. Enter th

4. Select ADV

ch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

pe http://routerlogin.net or http://192.168.0.1.

A login window opens.

e modem router user name and password.

The user name is ad
password are case-sensitive.

The BASIC Home page displays.

ANCED > Administration > Event Log.

min. The default password is password. The user name and

The Event Log page shows the following information:

•Time. The

•Priority. T

• Description. A descript

5. T

o refresh the log screen, click the Refresh button.

6. T

o clear the log entries, click the Clear Log button.

Manage Your Network User Manual82

time the event log entry was recorded.

he severity of this event.

ion of this event.

AC1200 WiFi Cable Modem Router Model C6220

Run the Ping Utility

Ping is an administration utility that tests whether a computer on the network is reachable
and measures the time it takes messages sent from the originating device to reach a
destination computer and return.

To run a ping test:

aunch a web browser from a WiFi-enabled computer or mobile device that is

1. L
connected to the network.

2. T

ype http://routerlogin.net or http://192.168.0.1.

A login window opens.

nter the modem router user name and password.

3. E

The user name is adm
password are case-sensitive.

The BASIC Home page displays.

4. Select ADV

In the Utility field, Ping is selected by default.

pecify the following parameters for the ping utility:

5. S

• Target.

•Ping Size.

• No. of Pings. Th

ANCED > Administration > Diagnostics.

The IP address of the ping target computer.

The size (in bytes) of the ping packet.

in. The default password is password. The user name and

e number of times to ping the target computer.

• Ping Interval.

6. Click the S

The ping results display.

o stop a ping test, click the Abort Test button.

7. T

Manage Your Network User Manual83

tart Test button.

The time between pings.

AC1200 WiFi Cable Modem Router Model C6220

8. To clear the results from the display, click the Clear Results button.

Run the Traceroute Utility

To display the route and measure transit delays of packets across an IP, run the traceroute
utility.

To run a traceroute test:

1. Laun

2. Ty

3. Enter th

4. Select A

5. In

ch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

pe http://routerlogin.net or http://192.168.0.1.

A login window opens.

e modem router user name and password.

The user name is ad
password are case-sensitive.

The BASIC Home page displays.

DVANCED > Administration > Diagnostics.

The Diagnostics page displays.

the Utility field, select Traceroute.

min. The default password is password. The user name and

6. Specify the following parameters for the traceroute utility:

•Target. The

•Max Hops. Th

• Data Size. The

• Base Port. Th

• Resolve Host. Sele

Manage Your Network User Manual84

IP address or host name of the computer that you are tracing.

e maximum number of hops to allow when tracing the route.

input the size (in bytes) of the packet.

e port number to send the packet to.

ct On to resolve the host name to the IP address.

AC1200 WiFi Cable Modem Router Model C6220

7. Click the Start Test button.

The traceroute results display.

o clear the results from the display, click the Clear Results button.

8. T

View WiFi Access Points in Your Area

You can view WiFi networks, or access points, in your area and select and join a WiFi
network.

To view WiFi access points (APs):

aunch a web browser from a WiFi-enabled computer or mobile device that is

1. L
connected to the network.

ype http://routerlogin.net or http://192.168.0.1.

2. T

A login window opens.

nter the modem router user name and password.

3. E

The user name is adm
password are case-sensitive.

The BASIC Home page displays.

4. Select ADV

ANCED > Administration > Wireless AP.

in. The default password is password. The user name and

On this page, you can view and select WiFi access points in use in your area.

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View or Change the Modem Router WiFi Channel

To view or change your WiFi channel:

1. Laun

2. Ty

3. Enter th

4. Select ADV

ch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

pe http://routerlogin.net or http://192.168.0.1.

A login window opens.

e modem router user name and password.

The user name is ad
password are case-sensitive.

The BASIC Home page displays.

ANCED > Administration > Wireless Channel.

min. The default password is password. The user name and

The page displays WiFi channels in use in the 2.4 GHz WiFi band. Your network is shown
in blue. Yellow shows other networks in your area. Laws or guidelines in many countries
and geographic locations specify which channels can be used. Depending on your
location, some channels might not be available.

If many WiFi networks at your location use th
might experience interference. You can change the channel to avoid the interference.

5. T

o view WiFi channels in use in the 5 GHz WiFi band, select the 5 GHz a/n radio button.

6. T

o change the WiFi channel, click the Change Channel button.

The Wireless Settings page displays.

Manage Your Network User Manual86

e same channel as your WiFi network, you

AC1200 WiFi Cable Modem Router Model C6220

7. From the Channel menu, select a different channel setting.

8. Click the Apply button.

Your settings are saved.

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Remote Management

The remote management feature lets you access your modem router over the Internet to
view or change its settings.

Note: Be sure to change the modem router login password to a secure

password. The ideal password contains no dictionary words from any
language and contains uppercase and lowercase letters, numbers,
and symbols. It can be up to 30 characters. See
Password on page 81.

Set Up Remote Management

To set up remote management:

Change the admin

1. Laun

2. Ty

3. Enter th

4. Select ADVANCED > Advanced Setup > Remote Management.

ch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

pe http://routerlogin.net or http://192.168.0.1.

A login window opens.

e modem router user name and password.

The user name is ad
password are case-sensitive.

The BASIC Home page displays.

min. The default password is password. The user name and

5. Select the Turn Remote Management On check box.

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6. Under Allow Remote Access By, specify the external IP addresses to be allowed to access
the modem router’s remote management.

For enhanced security, restrict access to as few external IP addresses as practical.

Select one of the following:

• To allow access from a single IP address on the Internet, select the Only This

Computer radio button. Enter the IP address that will be allowed access.

• To allow access from a range of IP addresses on the Internet, select the IP Address

Range radio button. Enter a beginning and ending IP address.

• To allow access from any IP address on the Internet, select the Everyone radio

button.

7. Specify the port number for accessing the modem router’s web pages.

Normal web browser access uses the standard HTTP service port 80. For greater
security, enter a custom port number for accessing the modem router’s web pages
remotely. Choose a number from 1024 to 65535, but do not use the number of any
common service port. The default is 8080, which is a common alternate for HTTP.

8. Click the Apply button.

Your settings are saved.

Use Remote Access

To use remote access:

1. Launch a web browser on a computer that is not on your home network.

2. Type your modem router’s WAN IP address into your browser’s address or location field

followed by a colon (:) and the custom port number.

For example, if your external address is 134.177.0.123 and you use port number 8080,
enter http://134.177.0.123:8080 in your browser.

Control the LED Settings

You can enable or disable LED blinking when data traffic is detected, and you can turn off all
LEDs except the Power LED.

To control the LED settings:

1. Launch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

2. Type http://routerlogin.net or http://192.168.0.1.

A login window opens.

3. Enter the modem router user name and password.

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AC1200 WiFi Cable Modem Router Model C6220

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 ADV

ANCED > Advanced Setup > LED Control Settings.

5. Select a radio button.

6. Click the Appl

y button.

Your settings are saved.

Manage Your Network User Manual90

8

8Specify Internet Port Settings

You can use port forwarding and port triggering to set up rules for Internet traffic. You need
networking knowledge to set up these features.

This chapter includes the following sections:

• Set Up Port Forwarding to a Local Server

• Set Up Port Triggering

91

AC1200 WiFi Cable Modem Router Model C6220

Set Up Port Forwarding to a Local Server

If your home network includes a server, you can allow certain types of incoming traffic to
reach the server. For example, you might want to make a local web server, FTP server, or
game server visible and available to the Internet.

The modem router can forward incoming traffic with sp
local network. You can specify the servers for applications and you can also specify a default
DMZ server to which the modem router forwards all other incoming protocols.

To forward specific incoming protocols:

1. Decide which type

2. Fin

3. Lau

4. Ty

5. Enter th

6. Select ADV

d the local IP address of the computer on your network that will provide the service.

The server computer must always use the same IP a
the reserved IP address feature. See

nch a web browser from a WiFi-enabled computer or mobile device that is connected to

the network.

pe http://routerlogin.net or http://192.168.0.1.

A login window opens.

e modem router user name and password.

The user name is ad
password are case-sensitive.

The BASIC Home page displays.

ANCED > Advanced Setup > Port Forwarding/Port Triggering.

of service, application, or game you want to provide.

Manage LAN IP Addresses on page 57.

min. The default password is password. The user name and

ecific protocols to computers on your

ddress. To specify this setting, use

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AC1200 WiFi Cable Modem Router Model C6220

7. Leave the Port Forwarding radio button selected as the service type.

8. From the Se

If the service that you want to add is not in the list, create a custom service. See
Custom Port Forwarding Service on page 93.

9. In the Server IP Address field, enter the IP

service.

10. Click the Ad

The service displays in the list.

rvice Name menu, select the service name.

address of the computer that will provide the

d button.

Add a Custom Port Forwarding Service

To add a custom service:

ind out which port number or range of numbers the application uses.

1. F

You can usually find this information by contacting the pu
groups or news groups.

2. Launch a we
the network.

3. T

ype http://routerlogin.net or http://192.168.0.1.

A login window opens.

b browser from a WiFi-enabled computer or mobile device that is connected to

Add a

blisher of the application or user

nter the modem router user name and password.

4. E

The user name is adm
password are case-sensitive.

The BASIC Home page displays.

5. Select ADV

The Port Forwarding/Port Triggering page displays.

6. Leave the Po

7. Click the Ad

ANCED > Advanced Setup > Port Forwarding/Port Triggering.

rt Forwarding radio button selected as the service type.

d Custom Service button.

in. The default password is password. The user name and

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AC1200 WiFi Cable Modem Router Model C6220

8. In the Service Name field, enter a descriptive name.

9. In the Service Type menu, select the protocol.

If you are unsure, select TCP/UDP.

10. In the External Starting Port field, enter the beginning port number.

If the application uses a single port, enter the same port number in the Ending Port field.

If the application uses a range of ports, enter the ending port number of the range in the

External Ending Port field.

11. To specify the internal starting and ending ports, do one of the following:

• Type the port numbers in the Internal Starting Port and Internal Ending Port fields.

• Select the Use the same port range for Internal ports check box.

12. Type the IP address in the Internal IP address field or select the radio button for an

attached device listed in the table.

13. Click the Apply button.

The service is now in the list on the Port Forwarding/Port Triggering page.

Edit a Port Forwarding Service

To edit a port forwarding entry:

1. Launch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

2. Type http://routerlogin.net or http://192.168.0.1.

A login window opens.

3. Enter the modem 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 > Port Forwarding/Port Triggering.

The Port Forwarding/Port Triggering page displays.

5. Leave the Port Forwarding radio button selected as the service type.

6. In the table, select the radio button next to the service name.

7. Click the Edit Service button.

The Ports - Custom Services page displays.

8. Specify changes to the settings.

9. Click the Apply button.

Your settings are saved.

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Delete a Port Forwarding Entry

To delete a port forwarding entry:

1. Launch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

2. Type http://routerlogin.net or http://192.168.0.1.

A login window opens.

3. Enter the modem 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 > Port Forwarding/Port Triggering.

The Port Forwarding/Port Triggering page displays.

5. Select the Port Forwarding radio button as the service type.

6. In the table, select the radio button next to the service name.

7. Click the Delete Service button.

The service is deleted.

Application Example: Make a Local Web Server Public

If you host a web server on your local network, you can use port forwarding to allow web
requests from anyone on the Internet to reach your web server.

To make a local web server public:

1. Assign your web server either a fixed IP address or a dynamic IP address using DHCP

address reservation.

In this example, your modem router always gives your web server an IP address of

192.168.0.33.

2. On the Port Forwarding/Port Triggering page, configure the modem router to forward the
HTTP service to the local address of your web server at 192.168.0.33.

HTTP (port 80) is the standard protocol for web servers.

3. (Optional) Register a host name with a Dynamic DNS service, and specify that name on the
Dynamic DNS page of the modem router.

For more information, see Dynamic DNS on page 69.

Dynamic DNS makes it much easier to access a server from the Internet because you
can type the name in the Internet browser. Otherwise, you must know the IP address that
the ISP assigned, which typically changes.

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AC1200 WiFi Cable Modem Router Model C6220

How the Modem Router Implements the Port Forwarding Rule

The following sequence shows the effects of a port forwarding rule:

1. When you type the URL www.example.com in your browser, the browser sends a web
page request message with the following destination information:

• Destination address. The IP address of www.example.com, which is the address of

your modem router.

• Destination port number. 80, which is the standard port number for a web server

process.

2. Your modem router receives the message and finds your port forwarding rule for incoming
port 80 traffic.

3. The modem router changes the destination in the message to IP address 192.168.0.123
and sends the message to that computer.

4. Your web server at IP address 192.168.0.123 receives the request and sends a reply
message to your modem router.

5. Your modem router performs Network Address Translation (NAT) on the source IP address,
and sends the reply through the Internet to the WiFi-enabled computer or mobile device that
sent the web page request.

Set Up Port Triggering

Port triggering is a dynamic extension of port forwarding that is useful in these cases:

• An application uses port forwarding to more than one local computer (but not
simultaneously).

• An application opens incoming ports that are different from the outgoing port.

With port triggering, the modem router monitors traffic to the Internet from an outbound
“trigger” port that you specify. For outbound traffic from that port, the modem router saves the
IP address of the computer that sent the traffic. The modem router temporarily opens the
incoming port or ports that you specify in your rule and forwards that incoming traffic to that
destination.

Port forwarding creates a static mapping of a port number or range of ports to a single local
computer. Port triggering can dynamically open ports to any computer when needed and
close the ports when they are no longer needed.

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Note: If you use applications such as multiplayer gaming, peer-to-peer

connections, real-time communications such as instant messaging, or
remote assistance (a feature in Windows XP), enable Universal
Plug-N-Play (UPnP). See

Universal Plug-N-Play on page 70.

Improve Network Connections With

Add a Port Triggering Service

To add a port triggering service:

1. L

aunch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

2. T

ype http://routerlogin.net or http://192.168.0.1.

A login window opens.

nter the modem router user name and password.

3. E

The user name is adm
password are case-sensitive.

The BASIC Home page displays.

4. Select ADV

The Port Forwarding/Port Triggering page displays.

5. Select th

ANCED > Advanced Setup > Port Forwarding/Port Triggering.

e Port Triggering radio button.

in. The default password is password. The user name and

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AC1200 WiFi Cable Modem Router Model C6220

6. Click the Add Service button.

7. In the Service Name field, type a descriptive service name.

8. In

the Service User menu, select a user option:

•Any (the

• Single address restrict

default) allows any computer on the Internet to use this service.

s the service to a particular computer.

9. Select the service type,

If you are not sure, select TCP/UDP.

10. In

the Triggering Port field, enter the number of the outbound traffic port that will open the

inbound ports.

11. In

the Connection Type, Starting Port, and Ending Port fields, enter the inbound port.

12. Click the Appl

The service is now in the Portmap Table. You must enable port triggering before the
mod

em router uses port triggering for the service that you added. For information about

port triggering, see

y button.

either TCP or UDP or TCP/UDP (both).

Specify When to Use Port Triggering on page 98.

Specify When to Use Port Triggering

To specify when to use port triggering:

1. Laun

2. Ty

3. Enter th

ch a web browser from a WiFi-enabled computer or mobile device that is

connected to the network.

pe http://routerlogin.net or http://192.168.0.1.

A login window opens.

e modem router user name and password.

The user name is ad
password are case-sensitive.

The BASIC Home page displays.

4. Select ADV

Specify Internet Port Settings User Manual98

ANCED > Advanced Setup > Port Forwarding/Port Triggering.

min. The default password is password. The user name and

AC1200 WiFi Cable Modem Router Model C6220

The Port Forwarding/Port Triggering page displays.

5. Select th

6. Select a radio button to specify when you want to use port triggering:

• Never. The modem rout

• Per Schedule. Port

• Always.

e Port Triggering radio button.

er does not use port triggering even if you specified port

triggering settings.

triggering is used based on the settings on the Schedule page.

Always use port triggering.

7. In the Po

This value controls how long the inbound ports stay open when the modem router detects

o activity. This value is required because the modem router cannot detect when the

n

application terminates.

rt Triggering Timeout field, enter a value up to 9999 minutes.

Application Example: Port Triggering for Internet Relay Chat

Some application servers, such as FTP and IRC servers, send replies to multiple port
numbers. Using port triggering, you can tell the modem router to open more incoming ports
when a particular outgoing port starts a session.

An example is Internet Relay Chat (IRC). Your computer connects to an IRC server at

estination port 6667. The IRC server not only responds to your originating source port, but

d
also sends an “identify” message to your computer on port 113. Using port triggering, you can
tell the modem router, “When you initiate a session with destination port 6667, you must also
allow incoming traffic on port 113 to reach the originating computer.” The following sequence
shows the effects of this port triggering rule:

1. Y

ou open an IRC client program to start a chat session on your computer.

2. Y

our IRC client composes a request message to an IRC server using a destination port
number of 6667, the standard port number for an IRC server process. Your computer then
sends this request message to your modem router.

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3. Your modem router creates an entry in its internal session table describing this
communication session between your computer and the IRC server. Your modem router
stores the original information, performs Network Address Translation (NAT) on the source
address and port, and sends this request message through the Internet to the IRC server.

4. Noting your port triggering rule and observing the destination port number of 6667, your
modem router creates another session entry to send any incoming port 113 traffic to your
computer.

5. The IRC server sends a return message to your modem router using the NAT-assigned
source port (for example, port 33333) as the destination port. The IRC server also sends an
“identify” message to your modem router with destination port 113.

6. When your modem router receives the incoming message to destination port 33333, it
checks its session table to see if a session is active for port number 33333. Finding an active
session, the modem router restores the original address information replaced by NAT and
sends this reply message to your computer.

7. When your modem router receives the incoming message to destination port 113, it checks
its session table and finds an active session for port 113 associated with your computer. The
modem router replaces the message’s destination IP address with your computer’s IP
address and forwards the message to your computer.

8. When you finish your chat session, your modem router eventually senses a period of
inactivity in the communications. The modem router then removes the session information
from its session table, and incoming traffic is no longer accepted on port numbers 33333 or

113.

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