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Page 71 / 96 Scroll up to view Page 66 - 70
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.
Page 72 / 96
108 Mbps Wireless Router WGT624 v4 Reference Manual
5-12
Advanced Configuration
v1.0, May 2007
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.
Page 73 / 96
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.
Page 74 / 96
108 Mbps Wireless Router WGT624 v4 Reference Manual
5-14
Advanced Configuration
v1.0, May 2007
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
Page 75 / 96
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.

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