Netgear C6220 Docsis 3 0 High Speed Wifi Cable Modem Router User Manual

							350 East Plumeria Drive
San Jose, CA 95134 
USADecember 2016
202-11728-01
AC1200 WiFi Cable Modem Router
Model C6220
User Manual 
						

							 
2 AC1200 WiFi Cable Modem Router Model C6220 
Support
Thank you for purchasing this NETGEAR product. You can visit www.netgear.com/support to register your product, get help, access the latest downloads and user manuals, and join our community. We recommend that you use only official NETGEAR 
support resources.
Conformity
For the current EU Declaration of Conformity, visit http://kb.netgear.com/app/answers/detail/a_id/11621.
Compliance
For regulatory compliance information, visit http://www.netgear.com/about/regulatory.
See the regulatory compliance document before connecting the power supply.
Trademarks
© NETGEAR, Inc., NETGEAR and the NETGEAR Logo are trademarks of NETGEAR, Inc. Any non-NETGEAR trademarks are 
used for reference purposes only. 
						

							3
Contents
Chapter 1 Hardware Setup
Unpack Your Modem Router  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  7
Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Position Your Gateway . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  9
Cable Your Modem Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10
Cable the Modem Router With a Simple Network . . . . . . . . . . . . . . . . . . . . . .  10
Cable Your Modem Router to a Router or Gateway  . . . . . . . . . . . . . . . . . . . .  11
Activate Your Internet Service  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  13
Use the Self-Activation Process to Set Up Your Internet Connection  . . . . .  13
Call Comcast XFINITY to Set Up Your Internet Connection  . . . . . . . . . . . . . .  13
Perform a Speed Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  14
Chapter 2 Connect to the Network and Access the Modem Router
Connect to the Network. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  16
Wired Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  16
WiFi Connection  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  16
Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  17
Types of Logins  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  17
Log In to the Modem Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  17
Chapter 3 Specify Initial Settings
Specify the Cable Connection Starting Frequency  . . . . . . . . . . . . . . . . . . . . . . .  20
View Modem Router Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  21
Specify the Internet Connection Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  22
Specify an IPv6 Internet Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  23
Chapter 4 Control Access to the Internet
Set Up Parental Controls  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  26
Use Keywords to Block Internet Sites  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  27
Add a Keyword to Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  27
Delete a Keyword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  28
Block Services From the Internet  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  29
Schedule When to Block Internet Sites and Services . . . . . . . . . . . . . . . . . . . . . .  31
Avoid Blocking on a Trusted Computer  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  31
Set Up Security Event Email Notifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  32 
						

							 
4 AC1200 WiFi Cable Modem Router Model C6220 
Chapter 5 Share a USB Storage Device Attached to the Modem Router
USB Device Requirements  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  35
Connect a USB Storage Device to the Modem Router  . . . . . . . . . . . . . . . . . . . .  35
Access a USB Drive Connected to the Modem Router From  
a Windows Computer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  36
Map a USB Device to a Windows Network Drive . . . . . . . . . . . . . . . . . . . . . . . . .  36
Access a USB Storage Device That Is Connected to the  
Modem Router From a Mac . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  37
Control Access to the USB Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  37
Use FTP Within the Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  39
View or Change Network Folders on a USB Drive  . . . . . . . . . . . . . . . . . . . . . . . .  39
Add a Network Folder on a USB Storage Device  . . . . . . . . . . . . . . . . . . . . . . . . .  41
Edit a Network Folder on a USB Storage Device. . . . . . . . . . . . . . . . . . . . . . . . . .  42
Approve USB Storage Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  42
Safely Remove a USB Storage Device  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  44
Chapter 6 Specify Network Settings
View or Change the WAN Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  46
Change the MTU Size  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  47
Set Up a Default DMZ Server  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  49
Change the Modem Router’s Device Name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  50
Change the LAN TCP/IP Settings  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  50
Specify the IP Addresses That the Modem Router Assigns  . . . . . . . . . . . . . . . .  52
Manage LAN IP Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  53
Reserve a LAN IP Address  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  53
Edit a Reserved Address Entry  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  54
Delete a Reserved Address Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  54
Use the WPS Wizard for WiFi Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  55
Specify Basic WiFi Settings  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  56
Change the WiFi Security Option  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  58
Set Up a WiFi Guest Network  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  59
Control the WiFi Radios  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  60
Use the WiFi On/Off Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  60
Enable or Disable the WiFi Radios. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  60
Specify WPS Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  61
Set Up a WiFi Access List  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  62
Dynamic DNS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  64
Improve Network Connections With Universal Plug-N-Play  . . . . . . . . . . . . . . .  65
Chapter 7 Manage Your Network
View Modem Router Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  68
View Cable Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  68
View Internet Port Information  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  69
View WiFi Settings  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  70
Reboot the Modem Router  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  71
Change the Router Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  72 
						

							 
5  AC1200 WiFi Cable Modem Router Model C6220
View and Manage Logs of Modem Router Activity . . . . . . . . . . . . . . . . . . . . . . .  72
Manage the Modem Router Configuration File. . . . . . . . . . . . . . . . . . . . . . . . . . .  74
Back Up Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  74
Restore Configuration Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  74
Erase the Current Configuration Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  75
Change the admin Password  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  76
View Event Logs  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  77
Run the Ping Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  78
Run the Traceroute Utility  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  79
View WiFi Access Points in Your Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  80
View or Change the Modem Router WiFi Channel . . . . . . . . . . . . . . . . . . . . . . . .  80
Remote Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  82
Set Up Remote Management  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  82
Use Remote Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  83
Control the LED Settings  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  83
Chapter 8 Specify Internet Port Settings
Set Up Port Forwarding to a Local Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  86
Add a Custom Port Forwarding Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  87
Edit a Port Forwarding Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  88
Delete a Port Forwarding Entry  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  89
Application Example: Make a Local Web Server Public . . . . . . . . . . . . . . . . . .  89
How the Modem Router Implements the Port Forwarding Rule . . . . . . . . . .  90
Set Up Port Triggering  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  90
Add a Port Triggering Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  91
Specify When to Use Port Triggering. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  92
Application Example: Port Triggering for Internet Relay Chat . . . . . . . . . . . .  93
Chapter 9 Troubleshooting
Use LEDs to Troubleshoot. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  96
Cannot Log In to the Modem Router  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  96
Troubleshoot the ISP Connection  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  97
Troubleshoot a TCP/IP Network Using a Ping Utility  . . . . . . . . . . . . . . . . . . . . . .  97
Use PIng to Test the LAN Path to Your Gateway  . . . . . . . . . . . . . . . . . . . . . . .  98
Use Ping to Test the Path From a Windows Computer to a Remote Device.  98
Appendix A Supplemental Information
Factory Default Settings  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Technical Specifications  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103 
						

							6
1
1.   Hardware 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 
For more information about the topics covered in this manual, visit the support website at 
http://support.netgear.com. 
						

							Hardware Setup 7
 AC1200 WiFi Cable Modem Router Model C6220
Unpack Your Modem Router
Your package contains the following items.
Ethernet cable
Power adapterModem router
Antennas (2)
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 th\
e LED settings, see 
Control the LED Settings  on page
  83. 
						

							Hardware Setup 8
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.
Table 1.  LED and button descriptions   
LEDDescription
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
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.
Power
•  Green. Power is supplied to the modem router.
•  Red. Power is cut of
 f 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.
Downstream
•  Solid green . One or more downstream channels are locked.
•  Blinking green . 
 The unit is scanning for a downstream channel.
•  Off. No downstream channel is locked. 
Upstream
•  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.
Internet
•  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. 
The modem router is offline.
2.4 GHz radio
•  Green. The 2.4 GHz radio is on.
•  Blinking green . 
 There is WiFi activity on the 2.4 GHz band.
•  Off. The 
 2.4 GHz radio is off.
5 GHz radio
•  Green. The 5 GHz radio is on.
•  Blinking green .There is WiFi activity on the 5 GHz band.
•  Off. The 
 5 GHz radio is off.
Ethernet • Green. 
 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 9
 AC1200 WiFi Cable Modem Router Model C6220
Rear Panel
The rear panel connections and buttons shown the following figure.
LED On-Off  
switch
USB 2.0 port Ethernet 
ports
Reset 
button Coaxial 
cable 
connectorPower 
adapter 
inputPower 
On/Off 
button
Figure 3. Modem router rear panel
Position Your Gateway
The modem router lets you access your network anywhere within the operat\
ing 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 t\
he range. 
Additionally, other WiFi access points in and around your home might affect your modem  router’
 s signal. WiFi access points are modem routers, repeaters, WiFi range ex\
tenders, and 
any other device that emits a WiFi signal for network access.
Position your modem router according to the following guidelines:
• Place your modem router near the center of the area where your computers\
 and other 
devices operate, and within line of sight to your WiFi devices.
• Make sure that the modem router is within reach of an 
 AC power outlet and near Ethernet 
cables for wired computers.
• Place the modem router in an elevated location, minimizing the number wa\
lls and ceilings 
between the modem router and your other devices. 
						

							Hardware Setup 10
AC1200 WiFi Cable Modem Router Model C6220 
•
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 surfa\
ces, 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 settin\
g.
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.
Modem router
Power adapter
Coaxial cableEthernet cable
Figure 4. Simple modem router network