User Manual
Table Of Contents
- User Manual
- Contents
- 1 Hardware Setup
- 2 Connect to the Network and Access the Modem Router
- 3 Specify Initial Settings
- 4 Control Access to the Internet
- 5 Share a USB Storage Device Attached to the Modem Router
- USB Device Requirements
- Connect a USB Storage Device to the Modem Router
- Access a USB Drive Connected to the Modem Router From a Windows Computer
- Map a USB Device to a Windows Network Drive
- Access a USB Storage Device That Is Connected to the Modem Router From a Mac
- 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
- 6 Specify Network Settings
- 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
- 7 Manage Your Network
- 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
- Run the Traceroute Utility
- View WiFi Access Points in Your Area
- View or Change the Modem Router WiFi Channel
- Remote Management
- Control the LED Settings
- 8 Specify Internet Port Settings
- 9 Troubleshooting
- A Supplemental Information
AC1200 WiFi Cable Modem Router Model C6220
User Manual6
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