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Page 56 / 116 Scroll up to view Page 51 - 55
Wireless-G Router WGR614v9 Reference Manual
4-8
Customizing Your Network Settings
v1.1, May 2008
Configuring NAT Filtering
Network Address Translation (NAT) determines how the router processes inbound traffic. Secured
NAT provides a secured firewall to protect the computers on the LAN from attacks from the
Internet, but might prevent some Internet games, point-to-point applications, or multimedia
applications from functioning. Open NAT provides a much less secured firewall, but allows almost
all Internet applications to function. For more information about NAT, see
“How Your Computer
Accesses a Remote Computer through Your Router” on page 5-2
.
To change the NAT option:
1.
In the NAT Filtering area, select either the
Secured
or the
Open
radio button.
2.
Click
Apply
to save the new configuration.
Configuring Static Routes
Static routes provide additional routing information to your router. Under usual 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.
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
1
92.168.1.100.
•
Your company’s network address 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 static route was created to your local network
for all 192.168.1.x addresses. With this configuration, if you attempt 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 is likely to 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.
In this example:
•
The
Destination IP Address
and
IP Subnet Mask
fields specify that this static route applies
to all 134.177.x.x addresses.
Page 57 / 116
Wireless-G Router WGR614v9 Reference Manual
Customizing Your Network Settings
4-9
v1.1, May 2008
•
The
Gateway IP Address
field specifies 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.
Select
Static Routes
under Advanced in the main menu. The Static Routes screen displays.
To add or edit a static route:
1.
Click
Add
to expand the Static Routes screen.
2.
In the
Route Name
field, type a name for this static route. (This is for identification purposes
only.)
3.
Select the
Private
check box if you want to limit access to the LAN only. If Private is selected,
the static route is not reported in RIP.
4.
Select the
Active
check box to make this route effective.
Figure 4-4
Figure 4-5
Page 58 / 116
Wireless-G Router WGR614v9 Reference Manual
4-10
Customizing Your Network Settings
v1.1, May 2008
5.
Type the IP address of the final destination.
6.
Type the IP subnet mask for this destination.
If the destination is a single host, type
255.255.255.255
.
7.
Type the gateway IP address, which must be a router on the same LAN segment as the
Wireless-G Router.
8.
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.
9.
Click
Apply
to have the static route entered into the table.
Wireless Repeating (Also Called WDS)
The Wireless-G Router can be used with a wireless access point (AP) to build large bridged
wireless networks. Wireless repeating is a type of Wireless Distribution System (WDS).
The following figure shows a wireless repeating scenario:
Warning:
If you use the wireless repeating function, your options for wireless security
are limited to None or WEP. For more information about wireless security, see
Chapter 2, “Safeguarding Your Network.”
Figure 4-6
Wireless Router (AP 1)
Internet
PCs
AP 2 is in Repeater mode.
This wireless computer is
associated with AP 2.
This wireless computer is
associated with AP 1.
Modem
is in Wireless Base Station mode.
Page 59 / 116
Wireless-G Router WGR614v9 Reference Manual
Customizing Your Network Settings
4-11
v1.1, May 2008
In the scenario shown, the following conditions must be met for both APs:
•
Both APs must use the same SSID, wireless channel, and encryption mode (see information
about WEP in
“Configuring WEP Wireless Security” on page 2-7”
).
•
Both APs must be on the same LAN IP subnet. That is, all the AP LAN IP addresses are in the
same network.
•
All LAN devices (wired and wireless computers) must be configured to operate in the same
LAN network address range as the APs.
Wireless Repeating Function
You can view or change wireless repeater settings for the wireless router. From the main menu of
the browser interface, under Advanced, click
Wireless Repeating Function
to display the
Wireless Repeating Function screen.
The wireless router supports two modes of the wireless repeating function, and allows you to
control wireless client association:
•
Wireless Base Station mode
. The wireless router acts as the parent AP, bridging traffic to and
from the child repeater AP, as well as handling wireless and wired local computers. To
configure this mode, you must know the MAC addresses of the child repeater AP.
•
Wireless Repeater mode
. The wireless router sends all traffic from its local wireless or wired
computers to a remote AP. To configure this mode, you must know the MAC address of the
remote parent AP.
•
Disable Wireless Client Association
. Usually this check box is cleared so that the router is an
access point for wireless computers.
Figure 4-7
Page 60 / 116
Wireless-G Router WGR614v9 Reference Manual
4-12
Customizing Your Network Settings
v1.1, May 2008
If this check box is selected, the router communicates wirelessly only with other APs whose
MAC addresses are listed in this screen. The router still communicates with wire-connected
LAN devices.
Setting Up the Base Station
The wireless repeating function works only in hub and spoke mode. The units cannot be daisy
chained. You must know the wireless settings for both units. You must know the MAC address of
the remote unit. First, set up the base station, and then set up the repeater.
To set up the base station:
1.
Set up both units with exactly the same wireless settings (SSID, mode, channel, and security).
Note that the wireless security option must be set to
None
or
WEP
.
2.
From the main menu of the browser interface on the wireless router base unit, under
Advanced, click
Wireless Repeating Function
to display the Wireless Repeating Function
screen.
3.
Select the
Enable Wireless Repeating Function
check box and the
Wireless Base Station
radio button.
4.
Enter the MAC address for the repeater units.
5.
Click
Apply
to save your changes.
Figure 4-8

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