3G Broadband Wireless Router MBR624GU User Manual

4-16

Managing Your Network

v1.1, March 2009

Note:

In this case, you must include http:// in the address.

5-1

v1.1, March 2009

Chapter 5

Advanced Configuration

This chapter describes how to configure the advanced features of your Wireless Router.

Advanced Settings

The Wireless Router provides a variety of advanced features, such as the following:

•

WAN Setup. See

“WAN Setup”

.

•

LAN TCP/IP settings. See

“LAN IP Settings” on page 5-3

.

•

Configuring Dynamic DNS. See

“Dynamic DNS” on page 5-7

.

•

Configuring Static Routes. See

“Using Static Routes” on page 5-9

.

•

UpnP. See

“Universal Plug and Play (UPnP)” on page 5-11

.

•

Wireless Bridging and Repeating. See

“Wireless Bridging and Repeating” on page 5-12

.

To view or change these settings, log in to the router at its default LAN address of

with its default user name of

admin

and default password of

password

, or

using whatever password and LAN address you have chosen for the router.

WAN Setup

Note:

To change broadband Internet connection settings, use the Broadband Settings

screen, as described in

“Manually Configuring Your Internet Settings” on

page 1-12

.

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Advanced Configuration

v1.1, March 2009

To view or change the WAN Setup:

1.

From the main menu, select WAN Setup to display the WAN Setup screen:

2.

Make the changes that you want, and then click

Apply

to save the settings.

The WAN Setup fields are described in the following table:

Figure 5-1

Table 5-1.

WAN Setup Settings

Setting

Description

Disable Port Scan and DOS

Protection

This check box is usually clear so that the firewall protects your LAN

against port scans and denial of service (DOS) attacks. This check box

should be selected only in special circumstances.

Default DMZ Server

This feature is sometimes helpful when you are using some online

games and videoconferencing. Be careful when using this feature

because it makes the firewall security less effective. See

“Setting Up a

Default DMZ Server” on page 5-3

.

Respond to Pin on Internet

WAN Port

If you want the router to respond to a ping from the Internet, select this

check box. This should be used only as a diagnostic tool, since it allows

your router to be discovered. Do not select this check box unless you

have a specific reason to do so.

MTU Size (in bytes)

The normal MTU (Maximum Transmit Unit) value for most Ethernet

networks is 1500 bytes, or 1492 Bytes for PPPoE connections. For

some ISPs you might need to reduce the MTU. This is rarely required,

and should not be done unless you are sure it is necessary for your ISP

connection.

3G Broadband Wireless Router MBR624GU User Manual

Advanced Configuration

5-3

v1.1, March 2009

Setting Up a Default DMZ Server

The default DMZ server feature is helpful when you are using some online games and

videoconferencing applications that are incompatible with NAT. The router is programmed to

recognize some of these applications and to work properly with them, but there are other

applications that may not function well. In some cases, one local computer can run the application

properly if that computer’s IP address is entered as the default DMZ server.

Incoming traffic from the Internet is normally discarded by the router unless the traffic is a

response to one of your local computers or a service that you have configured in the Ports screen.

Instead of discarding this traffic, you can have it forwarded to one computer on your network. This

computer is called the default DMZ server.

To assign a computer or server to be a default DMZ server:

1.

Go to the WAN Setup screen as described in the previous section.

2.

Select the

Default DMZ Server

check box.

3.

Type the IP address for that server.

4.

Click

Apply

to save your changes.

LAN IP Settings

The LAN IP Setup screen allows configuration of LAN IP services such as DHCP and RIP. These

features can be found under the Advanced heading in the router main menu.

The router is shipped preconfigured to use private IP addresses on the LAN side, and to act as a

DHCP server. The router default LAN IP configuration is:

•

LAN IP addresses: 192.168.0.1

•

Subnet mask: 255.255.255.0

These addresses are part of the Internet Engineering Task Force (IETF)-designated private address

range for use in private networks, and should be suitable in most applications. If your network has

a requirement to use a different IP addressing scheme, you can make those changes in this screen.

Warning:

For security reasons, you should avoid using the default DMZ server feature.

When a computer is designated as the default DMZ server, it loses much of

the protection of the firewall, and is exposed to many exploits from the

Internet. If compromised, the computer can be used to attack your network.

3G Broadband Wireless Router MBR624GU User Manual

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Advanced Configuration

v1.1, March 2009

To view or change the LAN IP Setup:.

1.

Select LAN IP to display the LAN IP Setup screen:

2.

Change the settings. For more information, see

Table 5-2

,

“DHCP Settings” on page 5-6

or

“Reserved IP Addresses” on page 5-7

.

3.

Click

Apply

to save the changes.

Warning:

If you change the LAN IP address of the router while connected through the

browser, you will be disconnected and so will others connected to the router.

To connect to the router, you must open a new connection to the new IP

address and log in again. Others using the router must restart their computers

to connect to the router again.

Figure 5-2