Netgear Router WGT624 V4 User Manual

							108 Mbps Wireless Router WGT624 v4 Reference Manual
Advanced Configuration 5-11
v1.0, May 2007
The LAN IP parameters are:
• IP Address.
This is the LAN IP address of the router.
• IP Subnet Mask.
This is the LAN Subnet Mask of the router. Combined with the IP address, the IP Subnet Mask 
allows a device to know which other addresses are local to it, and which must be reached 
through a gateway or router.
• RIP Direction.
RIP (Router Information Protocol) allows a router to exchange routing information with other 
routers. The RIP Direction selection controls how the router sends and receives RIP packets. 
None is the default. 
– Both or Out Only: The router will broadcast its routing table periodically. 
– Both or In Only: The router will incorporate the RIP information that it receives. 
– None (default): The router will not send any RIP packets and will ignore any RIP packets 
received. 
• RIP Version.
This controls the format and the broadcasting method of the RIP packets that the router sends. 
(It recognizes both formats when receiving.) By default, it is disabled. 
– RIP-1 is universally supported. RIP-1 is probably adequate for most networks, unless you 
have an unusual network setup. 
– RIP-2 carries more information. RIP-2B uses subnet broadcasting.
Note: If you change the LAN IP address of the router while your computer is connected 
through the browser, you will be disconnected. You need run ipconfig /release and 
ipconfig /renew commands on your computer to reconnect to the router. You may 
need to restart your computer for the new IP address setting to take effect. 
						

							108 Mbps Wireless Router WGT624 v4 Reference Manual
5-12 Advanced Configuration
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Using the Router as a DHCP Server
By default, the router will function as a DHCP (Dynamic Host Configuration Protocol) server, 
allowing it to assign IP, DNS server, and default gateway addresses to all computers connected to 
the router’s LAN. The assigned default gateway address is the LAN address of the router. IP 
addresses will be assigned to the attached computers from a pool of addresses specified in this 
menu. Each pool address is tested before it is assigned to avoid duplicate addresses on the LAN.
For most applications, the default DHCP and TCP/IP settings of the router are satisfactory. See 
“Internet Networking and TCP/IP Addressing” in Appendix B” for a link to a tutorial that provides 
an explanation of DHCP and information about how to assign IP addresses for your network. 
If another device on your network will be the DHCP server, or if you will manually configure the 
network settings of all of your computers, clear the “Use router as DHCP server” check box. 
Otherwise, leave it selected. 
Specify the pool of IP addresses to be assigned by setting the starting IP address and ending IP 
address. These addresses should be part of the same IP address subnet as the router’s LAN IP 
address. Using the default addressing scheme, you should define a range between 192.168.1.2 and 
192.168.1.253, although you may wish to save part of the range for devices with fixed addresses.
The router will deliver the following information to any LAN device that requests DHCP:
• An IP address from the range you have defined
• Subnet mask
• Gateway IP Address (the router’s LAN IP address)
• Primary DNS server (if you entered a primary DNS address in the Basic Settings page; 
otherwise, the router’s LAN IP address)
• Secondary DNS server (if you entered a secondary DNS address in the Basic Settings page
Using Address Reservation
When you specify a reserved IP address for a computer on the LAN, that computer will always 
receive the same IP address each time it accesses the router’s DHCP server. Reserved IP addresses 
should be assigned to servers that require permanent IP settings.  
						

							108 Mbps Wireless Router WGT624 v4 Reference Manual
Advanced Configuration 5-13
v1.0, May 2007
To reserve an IP address: 
1.In the LAN IP Setup page, click Add. 
2.In the IP Address box, type the IP address to assign to the computer or server (choose an IP 
address from the router’s LAN subnet, such as 192.168.1.X).
3.Type the MAC address of the computer or server.
4.Click Apply to enter the reserved address into the table. 
To edit or delete a reserved address entry: 
1.Click the button next to the reserved address you want to edit or delete. 
2.Click Edit or Delete.
Figure 5-6
Tip: If the computer is already present on your network, you can copy its MAC 
address from the Attached Devices page and paste it here. See “Viewing a List 
of Attached Devices” on page 4-3
Note: The reserved address will not be assigned until the next time the computer contacts 
the router’s DHCP server. Reboot the computer, or access its IP configuration and 
force a DHCP release and renew. 
						

							108 Mbps Wireless Router WGT624 v4 Reference Manual
5-14 Advanced Configuration
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How to Configure Static Routes
Static routes provide additional routing information to your router. Under normal circumstances, 
the router has adequate routing information after it has been configured for Internet access, and 
you do not need to configure additional static routes. You must configure static routes only for 
unusual cases such as multiple routers or multiple IP subnets located on your network.
To add or edit a static route:
1.From the wireless router’s main menu, under Advanced, click Static Routes. 
2.Click Add. The following page opens:
3.Type a route name for this static route in the Route Name box under the table. (This is for 
identification purpose only.) 
4.If you want to limit access to the LAN only, select Private. The static route will not be reported 
in RIP. 
Figure 5-7
Figure 5-8 
						

							108 Mbps Wireless Router WGT624 v4 Reference Manual
Advanced Configuration 5-15
v1.0, May 2007
5.Select Active to make this route effective. 
6.Type the Destination IP Address of the final destination. 
7.Type the IP Subnet Mask for this destination.
If the destination is a single host, type 255.255.255.255. 
8.Type the Gateway IP Address, which must be a router on the same LAN segment as the router. 
9.Type a number between 1 and 15 as the Metric value. 
This represents the number of routers between your network and the destination. Usually, a 
setting of 2 or 3 works, but if this is a direct connection, set it to 1. 
10.Click Apply to have the static route entered into the table. 
When to Use a Static Route
As an example of when a static route is needed, consider the following case:
• Your primary Internet access is through a cable modem to an ISP.
• You have an ISDN router on your home network for connecting to the company where you are 
employed. This router’s address on your LAN is 192.168.1.100.
• Your company’s network is 134.177.0.0.
When you first configured your router, two implicit static routes were created. A default route was 
created with your ISP as the gateway, and a second route was created to your local network for all 
192.168.1.x addresses. With this configuration, if you try to access a device on the 134.177.0.0 
network, your router forwards your request to the ISP. The ISP forwards your request to the 
company where you are employed, and the request will likely be denied by the company’s firewall.
In this case you must define a static route, telling your router that 134.177.0.0 should be accessed 
through the ISDN router at 192.168.1.100. The static route would look like Figure 5-8.
In this example:
• The Destination IP Address and IP Subnet Mask fields specify that this static route applies to 
all 134.177.0.x addresses. 
• The Gateway IP Address fields specify that all traffic for these addresses should be forwarded 
to the ISDN router at 192.168.1.100. 
• A metric value of 1 will work since the ISDN router is on the LAN. 
• Private is selected only as a precautionary security measure in case RIP is activated. 
						

							108 Mbps Wireless Router WGT624 v4 Reference Manual
5-16 Advanced Configuration
v1.0, May 2007
Enabling Remote Management Access
Using the Remote Management page, you can allow a user or users on the Internet to configure, 
upgrade, and check the status of your WGT624 v4 wireless router.
To configure your router for remote management:
1.On the main menu, under the Advanced heading, select Remote Management.
2.Select the “Turn Remote Management On” check box.
3.Specify which external addresses will be allowed to access the router’s remote management.
a.To allow access from any IP address on the Internet, select “Everyone”. 
Note: Be sure to change the router’s default configuration password to a very secure 
password. The ideal password should contain no dictionary words from any 
language, and should be a mixture of letters (both uppercase and lowercase), 
numbers, and symbols. Your password can be up to 30 characters.
Figure 5-9
Note:  For enhanced security, restrict access to as few external IP addresses as 
practical. 
						

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b.To allow access from a range of IP addresses on the Internet, select an IP address range.
Enter a beginning and ending IP address to define the allowed range. 
c.To allow access from a single IP address on the Internet, select Only This Computer.
Enter the IP address that will be allowed access. 
4.Specify the Port Number that will be used for accessing the management interface.
Web browser access normally uses the standard HTTP service port 80. For greater security, 
you can change the remote management Web interface to a custom port by entering that 
number in the box provided. Choose a number between 1024 and 65535, but do not use the 
number of any common service port. The default is 8080, which is a common alternate for 
HTTP.
5.Click Apply to have your changes take effect.
Using Universal Plug and Play (UPnP)
Universal Plug and Play (UPnP) helps devices, such as Internet appliances and computers, access 
the network and connect to other devices as needed. UPnP devices can automatically discover the 
services from other registered UPnP devices on the network. 
Note: When accessing your router from the Internet, you will type your router’s WAN IP 
address into your browser’s address (in IE) or location (in Netscape) box, followed 
by a colon (:) and the custom port number. For example, if your external address is 
134.177.0.123 and you use port number 8080, you must enter
http://134.177.0.123:8080 in your browser.
Figure 5-10 
						

							108 Mbps Wireless Router WGT624 v4 Reference Manual
5-18 Advanced Configuration
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•Turn UPnP On: UPnP can be enabled or disabled for automatic device configuration. The 
default setting for UPnP is enabled. If disabled, the router will not allow any device to 
automatically control the resources, such as port forwarding (mapping), of the router. 
•Advertisement Period: The Advertisement Period is how often the router will broadcast its 
UPnP information. This value can range from 1 to 1440 minutes. The default period is 30 
minutes. Shorter durations will ensure that control points have current device status at the 
expense of additional network traffic. Longer durations may compromise the freshness of the 
device status but can significantly reduce network traffic.
•Advertisement Time To Live: The time to live for the advertisement is measured in hops 
(steps) for each UPnP packet sent. The time to live hop count is the number of steps a 
broadcast packet is allowed to propagate for each UPnP advertisement before it disappears. 
The number of hops can range from 1 to 255. The default value for the advertisement time to 
live is 4 hops, which should be fine for most home networks. If you notice that some devices 
are not being updated or reached correctly, then it may be necessary to increase this value a 
little.
•UPnP Portmap Table: The UPnP Portmap Table displays the IP address of each UPnP device 
that is currently accessing the router and which ports (Internal and External) that device has 
opened. The UPnP Portmap Table also displays what type of port is opened and if that port is 
still active for each IP address.  
						

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Chapter 6
Troubleshooting
This chapter gives information about troubleshooting your WGT624 v4 wireless router. After each 
problem description, instructions are provided to help you diagnose and solve the problem.
Basic Functioning
After you turn on power to the router, the following sequence of events should occur:
1.When power is first applied, verify that the Power LED is on.
2.After approximately 10 seconds, verify that:
a.The Local port LEDs are lit for any local ports that are connected.
If a port’s LED is lit, a link has been established to the connected device. If a LAN port is 
connected to a 100 Mbps device, verify that the port’s LED is green. If the port is 10 
Mbps, the LED will be amber.
b.The Wireless port LED is lit. 
c.The Internet port LED is lit.
If any of these conditions does not occur, see the appropriate following section.
Note: Product updates are available on the NETGEAR website at 
http://www.netgear.com/support.  
						

							108 Mbps Wireless Router WGT624 v4 Reference Manual
6-2Troubleshooting
v1.0, May 2007
Power LED Not On
If the Power and other LEDs are off when your router is turned on:
• Make sure that the power cord is properly connected to your router and that the power supply 
adapter is properly connected to a functioning power outlet. 
• Check that you are using the 12 V DC 1A power adapter supplied by NETGEAR for this 
product.
If the error persists, you have a hardware problem and should contact technical support.
LEDs Never Turn Off 
When the router is turned on, the LEDs turn on for about 10 seconds and then turn off. If all the 
LEDs stay on, there is a fault within the router.
If all LEDs are still on one minute after power-up:
• Cycle the power to see if the router recovers.
• Clear the router’s configuration and reset it to factory defaults. This will set the router’s IP 
address to 192.168.1.1. This procedure is explained in “Restoring the Default Configuration 
and Password” on page 6-7.
If the error persists, you might have a hardware problem and should contact technical support.
Local or Internet Port LEDs Not On
If either the LAN LEDs or WAN LED do not light when the Ethernet connection is made, check 
the following:
• Make sure that the Ethernet cable connections are secure at the router and at the hub or 
workstation.
• Make sure that power is turned on to the connected hub or workstation.
• Be sure you are using the correct cable:
When connecting the router’s WAN port to a cable or DSL modem, use the cable that was 
supplied with the cable or DSL modem. This cable could be a standard straight-through 
Ethernet cable or an Ethernet crossover cable.