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Change the Modem Router’s Device Name, Change the LAN TCP/IP Settings

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AC1200 WiFi Cable Modem Router Model C6220 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. 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. 5. In the Device Name field, type a new name. 6. Click the Apply button. Your settings are saved. 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. 192.168.0.1 • Subnet mask. 255.255.255.0 Specify Network Settings 50

Section	Page
AC1200 WiFi Cable Modem Router	1
Contents	3
1. Hardware Setup	6
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
2. Connect to the Network and Access the Modem Router	15
Connect to the Network	16
Wired Connection	16
WiFi Connection	16
Label	17
Types of Logins	17
Log In to the Modem Router	17
3. Specify Initial Settings	19
Specify the Cable Connection Starting Frequency	20
View Modem Router Initialization	21
Specify the Internet Connection Settings	22
Specify an IPv6 Internet Connection	23
4. Control Access to the Internet	25
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
5. Share a USB Storage Device Attached to the Modem Router	34
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
6. Specify Network Settings	45
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
7. Manage Your Network	67
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
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
8. Specify Internet Port Settings	85
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
9. Troubleshooting	95
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
A. Supplemental Information	100
Factory Default Settings	101