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Using a Dynamic DNS Service, To con Dynamic DNS

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54 Mbps Wireless Router WGR614v7 Reference Manual Using a Dynamic DNS Service If your network has 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 will 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, who will allow you to register your domain to their IP address, and will forward 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 will not be routed on the Internet. The router contains a client that can connect to many popular dynamic DNS services. You can select one of these services and obtain an account with them. Then, whenever your ISP-assigned IP address changes, your router will automatically contact your dynamic DNS service provider, log in to your account, and register your new IP address. From the Main Menu of the browser interface, under Advanced, click on Dynamic DNS. Figure 6-8: Dynamic DNS menu To configure Dynamic DNS: 1. Register for an account with one of the dynamic DNS service providers whose names appear in the 'Select Service Provider' box. For example, for dyndns.org, go to www.dyndns.org. Advanced Configuration of the Router April 2006 6-13

Section	Page
Chapter 1 About This Manual	11
Audience, Scope, Conventions, and Formats	11
How to Use This Manual	12
How to Print this Manual	13
Chapter 2 Introduction	15
Key Features	15
802.11g Wireless Networking	16
A Powerful, True Firewall with Content Filtering	16
Security	17
Autosensing Ethernet Connections with Auto Uplink	17
Extensive Protocol Support	17
Easy Installation and Management	18
Maintenance and Support	19
Package Contents	19
The Router’s Front Panel	20
The Router’s Rear Panel	21
Chapter 3 Configuring the Internet and Wireless Settings	23
Initial Configuration	23
Logging Into Your Router	24
Changing Your Configuration	26
Internet Settings	26
Wireless Settings	30
Default Factory Settings	32
How to Bypass the Configuration Assistant	33
NETGEAR Product Registration, Support, and Documentation	33
Chapter 4 Content Filtering	35
Content Filtering Overview	35
Blocking Access to Internet Sites	36
Blocking Access to Internet Services	37
Configuring a User Defined Service	38
Configuring Services Blocking by IP Address Range	39
Scheduling When Blocking Will Be Enforced	39
Viewing Logs of Web Access or Attempted Web Access	40
Configuring E-Mail Alert and Web Access Log Notifications	41
Chapter 5 Maintenance	43
Viewing Wireless Router Status Information	43
Viewing a List of Attached Devices	47
Configuration File Management	47
Restoring and Backing Up the Configuration	48
Erasing the Configuration	49
Upgrading the Router Software	49
Changing the Administrator Password	50
Chapter 6 Advanced Configuration of the Router	53
Configuring Port Triggering	53
Configuring Port Forwarding to Local Servers	55
Adding a Custom Service	57
Editing or Deleting a Port Forwarding Entry	57
Local Web and FTP Server Example	58
Multiple Computers for Half Life, KALI or Quake III Example	58
Configuring the WAN Setup Options	59
Connect Automatically, as Required	59
Disabling the SPI Firewall	60
Setting Up a Default DMZ Server	60
Responding to Ping on Internet WAN Port	60
Setting the MTU Size	61
Using the LAN IP Setup Options	61
Configuring LAN TCP/IP Setup Parameters	62
Using the Router as a DHCP server	63
Using Address Reservation	64
Using a Dynamic DNS Service	65
Configuring Static Routes	66
Enabling Remote Management Access	68
Using Universal Plug and Play (UPnP)	70
Chapter 7 Troubleshooting	73
Basic Functioning	73
Power Light Not On	73
Lights Never Turn Off	74
LAN or WAN Port Lights Not On	74
Troubleshooting the Web Configuration Interface	75
Troubleshooting the ISP Connection	76
Troubleshooting a TCP/IP Network Using a Ping Utility	77
Testing the LAN Path to Your Router	77
Testing the Path from Your Computer to a Remote Device	78
Restoring the Default Configuration and Password	79
Problems with Date and Time	79
Appendix A Technical Specifications	81
Appendix B Network, Routing, Firewall, and Basics	83
Related Publications	83
Basic Router Concepts	83
What is a Router?	83
Routing Information Protocol	84
IP Addresses and the Internet	84
Netmask	86
Subnet Addressing	86
Private IP Addresses	89
Single IP Address Operation Using NAT	89
MAC Addresses and Address Resolution Protocol	90
Related Documents	91
Domain Name Server	91
IP Configuration by DHCP	92
Internet Security and Firewalls	92
What is a Firewall?	92
Stateful Packet Inspection	93
Denial of Service Attack	93
Ethernet Cabling	93
Category 5 Cable Quality	94
Inside Twisted Pair Cables	94
Uplink Switches, Crossover Cables, and MDI/MDIX Switching	96
Appendix C Preparing Your Network	99
What You Need To Use a Router with a Broadband Modem	99
Cabling and Computer Hardware	99
Computer Network Configuration Requirements	99
Internet Configuration Requirements	100
Where Do I Get the Internet Configuration Parameters?	100
Record Your Internet Connection Information	101
Preparing Your Computers for TCP/IP Networking	101
Configuring Windows 95, 98, and Me for TCP/IP Networking	102
Install or Verify Windows Networking Components	102
Enabling DHCP to Automatically Configure TCP/IP Settings in Windows 95B, 98, and Me	104
Selecting Windows’ Internet Access Method	106
Verifying TCP/IP Properties	106
Configuring Windows NT4, 2000 or XP for IP Networking	107
Install or Verify Windows Networking Components	107
DHCP Configuration of TCP/IP in Windows XP, 2000, or NT4	108
DHCP Configuration of TCP/IP in Windows XP	108
DHCP Configuration of TCP/IP in Windows 2000	110
DHCP Configuration of TCP/IP in Windows NT4	113
Verifying TCP/IP Properties for Windows XP, 2000, and NT4	115
Configuring the Macintosh for TCP/IP Networking	116
MacOS 8.6 or 9.x	116
MacOS X	116
Verifying TCP/IP Properties for Macintosh Computers	117
Verifying the Readiness of Your Internet Account	118
Are Login Protocols Used?	118
What Is Your Configuration Information?	118
Obtaining ISP Configuration Information for Windows Computers	119
Obtaining ISP Configuration Information for Macintosh Computers	120
Restarting the Network	121
Appendix D Wireless Networking Basics	123
Wireless Networking Overview	123
Infrastructure Mode	123
Ad Hoc Mode (Peer-to-Peer Workgroup)	124
Network Name: Extended Service Set Identification (ESSID)	124
Authentication and WEP Data Encryption	124
802.11 Authentication	125
Open System Authentication	125
Shared Key Authentication	126
Overview of WEP Parameters	127
Key Size	128
WEP Configuration Options	129
Wireless Channels	129
WPA and WPA2 Wireless Security	130
How Does WPA Compare to WEP?	131
How Does WPA Compare to WPA2 (IEEE 802.11i)?	132
What are the Key Features of WPA and WPA2 Security?	132
WPA/WPA2 Authentication: Enterprise-level User Authentication via 802.1x/EAP and RADIUS	134
WPA/WPA2 Data Encryption Key Management	136
Is WPA/WPA2 Perfect?	138
Product Support for WPA/WPA2	138
Supporting a Mixture of WPA, WPA2, and WEP Wireless Clients is Discouraged	138
Changes to Wireless Access Points	139
Changes to Wireless Network Adapters	139
Changes to Wireless Client Programs	140

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54 Mbps Wireless Router WGR614v7 Reference Manual

Advanced Configuration of the Router

6-13

April 2006

Using a Dynamic DNS Service

If your network has 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 will 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, who will allow you to register your domain to their IP address, and will

forward traffic directed at your domain to your frequently-changing IP address.

The router contains a client that can connect to many popular dynamic DNS services. You can

select one of these services and obtain an account with them. Then, whenever your ISP-assigned

IP address changes, your router will automatically contact your dynamic DNS service provider,

From the Main Menu of the browser interface, under Advanced, click on Dynamic DNS.

Figure 6-8:

Dynamic DNS menu

To configure Dynamic DNS:

in the ‘Select Service Provider’ box. For example, for dyndns.org, go to www.dyndns.org.

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 will not be routed on

the Internet.