Tài liệu Networking with Microsoft Windows Vista- P3 docx

3. In the Network Address Server Settings (DHCP) section (see Figure 3.22),

click Enable.

84 Networking with Microsoft® Windows Vista™

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FIGURE 3.22

On most Linksys routers, use the Setup tab’s Basic Setup subtab to enable the DHCP server.

4. Use the Starting IP Address text box to specify the first address in the

range of IP addresses that the server can assign.

5. Use the Maximum Number of DHCP Users text box to limit the num￾ber of DHCP leases that the server can assign. This isn’t important on

a small network, and the default value of 50 is more than enough.

6. Use the Client Lease Time text box to specify the time, in minutes, that

each client can keep its IP address. The default value of 0—which cor￾responds to one day—is fine for most small networks.

7. At the bottom of the page, click Save Settings. The router reports that

the Settings are successful.

8. Click Continue.

Netgear

On most Netgear routers, here are the steps to follow to enable the DHCP

server:

1. Under Advanced, click the LAN IP Setup link. The LAN IP Setup page

appears, as shown in Figure 3.23.

2. Click to activate the Use Router as

DHCP Server check box.

3. Use the Starting IP Address text box

to specify the first address in the

range of IP addresses that the server

can assign.

You can see a list of

DHCP clients on

most Linksys routers by clicking

the Status tab, clicking the Local

Network subtab, and then click￾ing DHCP Clients Table.

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FIGURE 3.23

On most Netgear routers, use the LAN IP Setup page to enable the DHCP server.

Modifying Wireless Settings

If your router includes a wireless access point (AP), you need to configure a few

settings before making wireless connections to the AP. On most routers, you

can configure the following settings:

Network name This is the name of your wireless network, which is often

called the service set identifier, or SSID. All routers come

with a default SSID, usually some variation on the man￾ufacturer’s name, such as linksys or belkin54g.

Changing the SSID to something memorable will help

you to identify your network in Vista’s list of available

wireless networks, and it will avoid confusion with other

nearby wireless networks that still use the default name.

CHAPTER 3 Configuring Your Router 85

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4. Use the Ending IP Address text box

to specify the last address in the

range of IP addresses that the

server can assign.

5. Click Apply.

You can see the list

of DHCP clients on

most Netgear routers by clicking

the LAN IP Setup link under

Advanced and then scrolling to

the Address Reservation section.

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SSID broadcasting This setting determines whether your router broadcasts

the SSID, which makes the wireless network visible in

Windows Vista’s list of available networks. It’s best to

enable SSID broadcasting when you first make your con￾nections to the wireless network. However, Windows Vista

can remember the networks you’ve connected to in the

past, so you can later disable SSID broadcasting as a

security measure. (Although see Chapter 15,

“Implementing Wireless Security,” for some important

information on just how secure this tactic really is.)

➔ For more information on disabling SSID broadcasting, see “Disabling Network SSID Broad￾casting,”p. 347.

Wireless mode This tells the router which Wi-Fi standard—802.11a,

802.11b, 802.11g, or 802.11b—to implement. If your

router supports more than one standard, you can con￾figure the router to use multiple standards (for exam￾ple, both 802.11b and 802.11g; this is often called

mixed mode) or just a single standard. For example, if

all your wireless devices use 802.11g, you should con￾figure the router to use only that standard.

Wireless channel This setting determines the radio frequency (RF) band that

the wireless AP uses to transmit and receive signals. For

successful wireless networking connections, all your net￾working devices must use the same channel.

The next few sections show you how to configure these wireless settings in var￾ious routers.

Belkin

Follow these steps to configure wireless settings on most Belkin routers:

1. Under Wireless, click the Channel and SSID link to display the Channel

and SSID page, shown in Figure 3.24.

2. Use the SSID text box to specify the network name you want to use.

3. Use the ESSID Broadcast group to click either Enable or Disable.

4. Use the Wireless Mode list to select a wireless mode.

5. Use the Wireless Channel list to select a frequency (or click Auto to let

the router select the correct frequency automatically).

6. Click Apply Changes.

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FIGURE 3.24

On most Belkin routers, use the Channel and SSID page to configure the wireless settings.

D-Link

On most D-Link routers, here are the steps to follow to configure wireless set￾tings:

1. Click the Setup tab (or, on some D-Link routers, the Basic tab).

2. Click Wireless Settings to display the Wireless Network page, shown in

Figure 3.25.

CHAPTER 3 Configuring Your Router 87

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FIGURE 3.25

On your D-Link router, use the Wireless Network page to change the wireless settings.

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3. Make sure the Enable Wireless check box is activated.

4. Use the Wireless Network Name text box to specify the network name

you want to use.

5. If you want the router to automatically select the correct channel for

your network, leave the Enable Auto Channel Scan check box acti￾vated; otherwise, deactivate Enable Auto Channel Scan, and then use

the Wireless Channel list to select a frequency.

6. If you want the router to only use 802.11g, click to activate the 802.11g

Only Mode check box.

7. To prevent the router from broadcasting the network name, click to

activate the Enable Hidden Wireless check box.

8. Click Save Settings. The router restarts to put the new settings into

effect.

Linksys

Follow these steps to configure wireless settings on most Linksys routers:

1. Click the Wireless tab.

2. Click the Basic Wireless Settings subtab, shown in Figure 3.26.

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FIGURE 3.26

On most Linksys routers, use the Wireless tab’s Basic Wireless Settings subtab to configure the

wireless AP.

3. Use the Wireless Network Mode list to select a wireless mode.

4. Use the Wireless Network Name (SSID) text box to specify the network

name you want to use.

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