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Using a Dynamic DNS Service, Dynamic DNS

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NETGEAR Wireless-N Router WNR2000 User Manual Using a Dynamic DNS Service If your Internet Service Provider (ISP) gave you a permanently assigned IP address, you can register a domain name and have that name linked with your IP address by public Domain Name Servers (DNS). However, if your Internet account uses a dynamically assigned IP address, you do not know in advance what your IP address will be, and the address can change frequently. In this case, you can use a commercial Dynamic DNS service, which allows you to register your domain to their IP address, and forwards traffic directed at your domain to your frequently changing IP address. Note: If your ISP assigns a private WAN IP address (such as 192.168.x.x or 10.x.x.x), the Dynamic DNS service will not work because private addresses are not routed on the Internet. Your router contains a client that can connect to the Dynamic DNS service provided by DynDNS.org. You must first visit their website at www.dyndns.org and obtain an account and host name, which you specify in the router. Then, whenever your ISP-assigned IP address changes, your router automatically contacts the Dynamic DNS service provider, logs in to your account, and registers your new IP address. If your host name is hostname, for example, you can reach your router at hostname.dyndns.org. Select Dynamic DNS under Advanced in the main menu. The Dynamic DNS screen displays. Figure 4-3 4-6 Customizing Your Network Settings v1.3, February 2009

Section	Page
NETGEAR Wireless-N Router WNR2000 User Manual	1
Contents	9
Chapter 1 Configuring Basic Connectivity	17
Using the Setup Manual	17
Logging In To Your Wireless Router	18
Selecting a Language for Your Screen Display	21
Configuring Your Internet Connection Using the Smart Setup Wizard	22
Viewing and Configuring Basic ISP Settings	23
Setting Up and Testing Basic Wireless Connectivity	27
Chapter 2 Safeguarding Your Network	31
Choosing Appropriate Wireless Security	31
Recording Basic Wireless Settings Setup Information	35
Changing Wireless Security Settings	36
Viewing Basic Wireless Settings	36
Configuring WEP Wireless Security	39
Configuring WPA-PSK and WPA2-PSK Wireless Security	40
Viewing Advanced Wireless Settings	42
Using Push 'N' Connect (Wi-Fi Protected Setup)	43
Push Button Configuration	44
Security PIN Entry	45
Configuring the WPS Settings	47
Connecting Additional Wireless Client Devices after WPS Setup	48
Restricting Wireless Access by MAC Address	49
Changing the Administrator Password	51
Backing Up Your Configuration	52
Understanding Your Firewall	53
Chapter 3 Restricting Access From Your Network	55
Content Filtering Overview	55
Blocking Access to Internet Sites	55
Blocking Access to Internet Services	57
Blocking Services by IP Address Range	59
Scheduling Blocking	59
Viewing Logs of Web Access or Attempted Web Access	60
Configuring E-mail Alert and Web Access Log Notifications	61
Setting the Time Zone	63
Chapter 4 Customizing Your Network Settings	65
Using the LAN IP Setup Options	65
Configuring a Device Name	66
Configuring LAN TCP/IP Setup Parameters	67
Using the Router as a DHCP Server	68
Using Address Reservation	69
Using a Dynamic DNS Service	70
Configuring the WAN Setup Options	72
Disabling the SPI Firewall	72
Setting Up a Default DMZ Server	72
Responding to a Ping on the Internet (WAN) Port	73
Setting the MTU Size	73
Configuring NAT Filtering	74
Configuring Static Routes	74
Chapter 5 Fine-Tuning Your Network	77
Allowing Inbound Connections to Your Network	77
How Your Computer Accesses a Remote Computer through Your Router	78
How Port Triggering Changes the Communication Process	79
How Port Forwarding Changes the Communication Process	81
How Port Forwarding Differs from Port Triggering	82
Configuring Port Forwarding to Local Servers	82
Adding a Custom Service	83
Editing or Deleting a Port Forwarding Entry	85
Configuring Port Triggering	86
Using Universal Plug and Play	90
Optimizing Wireless Performance	91
Changing the MTU Size	92
Quality of Service	94
Using WMM QoS for Wireless Multimedia Applications	94
Configuring QoS for Internet Access	94
Overview of Home and Small Office Networking Technologies	100
Assessing Your Speed Requirements	101
Chapter 6 Using Network Monitoring Tools	103
Viewing Wireless Router Status Information	104
Viewing a List of Attached Devices	109
Managing the Configuration File	109
Backing Up and Restoring the Configuration	110
Erasing the Configuration	111
Updating the Router Firmware	111
Checking for New Firmware in the Router Upgrade Screen	112
Updating Manually to New Router Firmware	113
Enabling Remote Management Access	115
Chapter 7 Troubleshooting	117
Quick Tips	117
Troubleshooting Basic Functions	118
Login Problems	121
Checking the Internet Service Connection	122
Obtaining an Internet IP Address	122
Troubleshooting PPPoE	123
Troubleshooting Internet Browsing	124
Troubleshooting Your Network Using the Ping Utility	124
Testing the LAN Path to Your Router	125
Testing the Path from Your Computer to a Remote Device	126
Problems with Date and Time	126
Problems with Wireless Adapter Connections	127
Restoring the Default Configuration and Password	128
Appendix A Technical Specifications	129
Default Configuration Settings	129
General Specifications	131
Appendix B Related Documents	133

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NETGEAR Wireless-N Router WNR2000 User Manual

4-6

Customizing Your Network Settings

v1.3, February 2009

Using a Dynamic DNS Service

If your Internet Service Provider (ISP) gave you a permanently assigned IP address, you can

Servers (DNS). However, if your Internet account uses a dynamically assigned IP address, you do

not know in advance what your IP address will be, and the address can change frequently. In this

case, you can use a commercial Dynamic DNS service, which allows you to register your domain

to their IP address, and forwards traffic directed at your domain to your frequently changing IP

address.

Your router contains a client that can connect to the Dynamic DNS service provided by

DynDNS.org. You must first visit their website at

www.dyndns.org

and obtain an account and host

name, which you specify in the router. Then, whenever your ISP-assigned IP address changes,

your router automatically contacts the Dynamic DNS service provider, logs in to your account, and

registers your new IP address. If your host name is hostname, for example, you can reach your

router at hostname.dyndns.org.

Select

Dynamic DNS

under Advanced in the main menu. The Dynamic DNS screen displays.

Note:

If your ISP assigns a private WAN IP address (such as 192.168.x.x or 10.x.x.x), the

Dynamic DNS service will not work because private addresses are not routed on

the Internet.

Figure 4-3