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Protecting Your Network - port forwarding

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Chapter 3 Protecting Your Network This chapter describes how to use the content filtering and reporting features of the Dual Band Wireless-N Modem Router to protect your network. This chapter includes the following sections: • "Protecting Access to Your Modem Router • "Restricting Access by MAC Address" on page 3-2 • "Blocking Access to Internet Sites" on page 3-5 • "Firewall Rules" on page 3-6 • "Port Forwarding" on page 3-9 • "Port Triggering" on page 3-11 • "Blocking Access to Internet Services" on page 3-12 • "Scheduling Blocking" on page 3-14 • "Viewing Logs of Web Access or Attempted Web Access" on page 3-15 • "Configuring E-mail Alert and Web Access Log Notifications" on page 3-17 • "Setting the Time" on page 3-18 Note: For information about restricting access to USB storage devices, see "Configuring USB Storage Advanced Settings" on page 5-8. 3-1 v1.0, September 2009

Section	Page
RangeMax Dual Band Wireless-N Modem Router DGND3300 User Manual	1
Contents	7
About This Manual	11
Conventions, Formats, and Scope	11
How to Print This Manual	12
Revision History	12
Chapter 1 Configuring Your Internet Connection	13
Using the Setup Manual	13
Logging In to Your Modem Router	14
Using the Setup Wizard	16
Viewing or Manually Configuring Your ISP Settings	16
Configuring ADSL Settings	20
Chapter 2 Safeguarding Your Network	22
Planning Your Wireless Network	22
Wireless Placement and Range Guidelines	23
Wireless Security Options	24
Manually Configuring Your Wireless Settings	25
Configuring WEP Wireless Security	27
Configuring WPA, WPA2, or Mixed WPA2 + WPA Wireless Security	29
Using Push 'N' Connect (WPS) to Configure Your Wireless Network	31
Using a WPS Button to Add a WPS Client	32
Using PIN Entry to Add a WPS Client	33
Configuring Advanced WPS Settings	34
Connecting Additional Wireless Client Devices After WPS Setup	35
Adding More WPS Clients	35
Adding Both WPS and Non-WPS Clients	36
Restricting Access to Your Modem Router	37
Wireless Guest Networks	38
Chapter 3 Protecting Your Network	41
Protecting Access to Your Modem Router	42
Changing the Built-In Password	42
Restricting Access by MAC Address	42
Blocking Access to Internet Sites	45
Firewall Rules	46
Port Forwarding	49
Adding a Pre-set Port Forwarding Rule	50
Adding a Custom Port Forwarding Rule	50
Port Triggering	51
Blocking Access to Internet Services	52
Scheduling Blocking	54
Viewing Logs of Web Access or Attempted Web Access	55
Configuring E-mail Alert and Web Access Log Notifications	57
Setting the Time	58
Chapter 4 Managing Your Network	59
Upgrading the Firmware	59
Manually Checking for Firmware Upgrades	60
Viewing Modem Router Status Information	62
Connection Status	64
Statistics	65
Viewing a List of Attached Devices	66
Managing the Configuration File	67
Backing Up and Restoring the Configuration	67
Erasing the Configuration	68
Running Diagnostic Utilities and Rebooting the Modem Router	68
Enabling Remote Management Access	69
Chapter 5 USB Storage	71
USB Drive Requirements	72
File Sharing Scenarios	72
Sharing Photos with Friends and Family	73
Sharing Large Files with Colleagues	73
USB Storage Basic Settings	74
Editing a Network Folder	77
Configuring USB Storage Advanced Settings	78
Creating a Network Folder	80
Unmounting a USB Drive	80
Specifying Approved USB Devices	81
Connecting to the USB Drive from a Remote Computer	82
Locating the Internet Port IP Address	82
Accessing the Router’s USB Drive Remotely Using FTP	82
Connecting to the USB Drive with Microsoft Network Settings	82
Chapter 6 Customizing Your Network Settings	84
Using the LAN Setup Options	84
Using the Modem Router as a DHCP Server	87
Address Reservation	87
Using a Dynamic DNS Service	88
Configuring the WAN Setup Options	90
Setting Up a Default DMZ Server	91
Setting up Quality of Service (QoS)	92
Editing or Deleting an Existing QoS Policy	96
Configuring Static Routes	97
Wireless Repeating (Also Called WDS)	99
Wireless Repeating Function	100
Setting Up the Base Station	101
Setting Up a Repeater Unit	102
Chapter 7 Fine-Tuning Your Network	103
Assessing Your Speed Requirements	104
Optimizing Your Network Bandwidth	105
Optimizing Wireless Performance	107
Changing the MTU Size	108
Universal Plug and Play	109
Chapter 8 Troubleshooting	111
Quick Tips	111
Troubleshooting with the LEDs	112
Cannot Access the Modem Router Menu	114
Cannot Access the Internet	115
Checking the Configuration	115
Checking the WAN IP Address	115
Troubleshooting a Network Using the Ping Utility	117
Testing the LAN Path to Your Router	117
Testing the Path from Your Computer to a Remote Device	118
Problems with Date and Time	119
Wireless Connectivity	119
Viewing Available Networks	120
Appendix A Default Configuration and Technical Specifications	121
Restoring the Factory Configuration Settings	121
Using the Restore Factory Settings Button	121
Technical Specifications	123
Appendix B Related Documents	125