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Table 5-2., Theoretical Transfer Time for 1 Gigabyte

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Wireless-G Router WGR614v9 Reference Manual • Streaming MP3 audio requires less than 1 Mbps per stream and does not strain most modern networks. Like video, however, streaming audio is also sensitive to latency and packet loss, so a congested network or a noisy link can cause problems. • Backing up computers over the network has become popular due to the availability of inexpensive mass storage. Table 5-2 shows the time to transfer 1 gigabyte (1 GB) of data using various networking technologies. Table 5-2. Theoretical Transfer Time for 1 Gigabyte Network Connection Gigabit wired Ethernet RangeMax NEXT Wireless-N Powerline HD 100 Mbps wired Ethernet 802.11n wireless 802.11g wireless 802.11b wireless 10 Mbps wired Ethernet Cable modem (3 Mbps) Analog modem (56 kbps) Theoretical Raw Transfer Time 8 seconds 26 seconds 40 seconds 80 seconds 45 seconds 150 seconds 700 seconds 800 seconds 2700 seconds 144,000 seconds (40 hours) 5-18 v1.1, May 2008 Fine-Tuning Your Network

Section	Page
Wireless-G Router WGR614v9 Reference Manual	1
Contents	7
About This Manual	11
Conventions, Formats, and Scope	11
How to Use This Manual	12
How to Print This Manual	12
Revision History	13
Chapter 1 Configuring Basic Connectivity	15
Configuring Your Internet Connection Using the Smart Setup Wizard	15
Using the Setup Manual	16
Logging In to Your Wireless Router	16
Viewing and Configuring Basic ISP Settings	19
Chapter 2 Safeguarding Your Network	25
Choosing Appropriate Wireless Security	25
Recording Basic Wireless Settings Setup Information	28
Changing Wireless Security Settings	29
Viewing Basic Wireless Settings	29
Configuring WEP Wireless Security	31
Configuring WPA-PSK and WPA2-PSK Wireless Security	33
Viewing Advanced Wireless Settings	34
Restricting Wireless Access by MAC Address	35
Changing the Administrator Password	38
Backing Up Your Configuration	39
Understanding Your Firewall	39
Chapter 3 Restricting Access From Your Network	41
Content Filtering Overview	41
Blocking Access to Internet Sites	41
Blocking Access to Internet Services	43
Configuring a User-Defined Service	44
Blocking Services by IP Address Range	45
Scheduling Blocking	45
Viewing Logs of Web Access or Attempted Web Access	47
Chapter 4 Customizing Your Network Settings	49
Using the LAN IP Setup Options	49
Configuring a Device Name	50
Configuring LAN TCP/IP Setup Parameters	50
Using the Router as a DHCP Server	50
Using Address Reservation	51
Using a Dynamic DNS Service	52
Configuring the WAN Setup Options	54
Disabling the SPI Firewall	54
Setting Up a Default DMZ Server	54
Responding to a Ping on the Internet (WAN) Port	55
Setting the MTU Size	55
Configuring NAT Filtering	56
Configuring Static Routes	56
Wireless Repeating (Also Called WDS)	58
Wireless Repeating Function	59
Setting Up the Base Station	60
Setting Up a Repeater Unit	61
Chapter 5 Fine-Tuning Your Network	63
Allowing Inbound Connections to Your Network	63
How Your Computer Accesses a Remote Computer through Your Router	64
How Port Triggering Changes the Communication Process	65
How Port Forwarding Changes the Communication Process	67
How Port Forwarding Differs from Port Triggering	68
Configuring Port Forwarding to Local Servers	68
Adding a Custom Service	69
Editing or Deleting a Port Forwarding Entry	70
Application Example: Making a Local Web Server Public	70
Configuring Port Triggering	71
Using Universal Plug and Play	74
Optimizing Wireless Performance	75
Using WMM for Wireless Multimedia Applications	76
Changing the MTU Size	77
Overview of Home and Small Office Networking Technologies	78
Assessing Your Speed Requirements	79
Chapter 6 Using Network Monitoring Tools	81
Viewing Wireless Router Status Information	81
Viewing a List of Attached Devices	85
Managing the Configuration File	86
Backing Up and Restoring the Configuration	86
Erasing the Configuration	87
Upgrading the Router Software	87
Upgrading Automatically to New Router Software	89
Upgrading Manually to New Router Software	90
Enabling Remote Management Access	91
Chapter 7 Troubleshooting	93
Troubleshooting Quick Tips	93
Be sure to restart your network in this sequence.	93
Make sure that the Ethernet cables are securely plugged in.	94
Make sure that the wireless settings in the computer and router match exactly.	94
Make sure that the network settings of the computer are correct.	94
Check the Test light to verify correct router operation.	94
Troubleshooting Basic Functions	95
The Power light is not on or is blinking.	95
The lights never turn off.	95
The Internet or Ethernet port lights are not on.	96
The Wireless light is not on.	96
Troubleshooting the Web Configuration Interface	96
Troubleshooting the Internet Connection	97
Troubleshooting a Network Using the Ping Utility	99
Testing the LAN Path to Your Router	99
Testing the Path from Your Computer to a Remote Device	100
Problems with Date and Time	101
Solving Wireless Connection Problems	101
Using Your Wireless Card Setup Program	101
Setting Up and Testing Basic Wireless Connectivity	102
Restoring the Default Configuration and Password	105
Appendix A Technical Specifications	107
Appendix B Related Documents	109