User's Manual
Table Of Contents
- AC1200 WiFi Cable Modem Router
- 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
Specify Network Settings
46
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. Launch 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. 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 ADV
ANCED > Setup > WAN Setup.
5. View or change the following settings:
• Disable IPv4 Firewall Protection.
• Disable Port Scan and DoS Protection. DoS protection protects your LAN against
denial of service attacks such as Syn flood, Smurf Attack, Ping of Death, and many
others. Select this check box only in special circumstances.
• Default DMZ Server.
This feature is sometimes helpful when you are playing online
games or videoconferencing, but it makes the firewall security less effective. See Set
Up a Default DMZ Server on page 49.
• Respond to Ping on Internet Port.
This feature allows your modem router to be
discovered. Use this feature only as a diagnostic tool or if there is a specific reason.
• Disable IGMP Proxying. IGMP proxying allows a computer on the local area network
(LAN) to receive the multicast traf
fic it is interested in from the Internet. If you do not
need this feature, you can select this check box to disable it.










