Netgear DGND3700 ユーザーガイド

Turn Off Wireless Connectivity

You can completely turn off the wireless connectivity of the wireless modem router by 
pressing the Wireless On/Off button on its front panel

. For example, if you use your 

notebook computer to wirelessly connect to your wireless modem router and you take a 
business trip, you can turn off the wireless portion of the modem router while you are 
traveling. Other members of your household who use computers connected to the wireless 
modem router through Ethernet cables can still use the wireless modem router.

Disable SSID Broadcast

By default, the wireless modem router broadcasts its Wi-Fi network name (SSID) so devices 
can find it. If you change this setting to not allow the broadcast, wireless devices will not find 
your wireless modem router unless they are configured with the same SSID. See 

on page 44 for the procedure.

Turning off SSID broadcast nullifies the wireless network discovery 

feature of some products such as Windows XP, but the data is still 
fully exposed to a determined snoop using specialized test 
equipment like wireless sniffers. If you allow the broadcast, be sure 
to keep wireless security enabled.

Restrict Access by MAC Address

You can enhance your network security by allowing access to only specific PCs based on 
their Media Access Control (MAC) addresses. You can restrict access to only trusted PCs so 
that unknown PCs cannot wirelessly connect to the wireless modem router. MAC address 
filtering adds an obstacle against unwanted access to your network, but the data broadcast 
over the wireless link is fully exposed (unencrypted).The Wireless Station Access List 
determines which wireless hardware devices are allowed to connect to the wireless modem 
router by MAC address. See 

on page 44 for the 

procedure.

Wireless Security Options

A security option is the type of security protocol applied to your wireless network. The 
security protocol in force encrypts data transmissions and ensures that only trusted devices 
receive authorization to connect to your network. There are two types of encryption: Wired 
Equivalent Privacy (WEP) and Wi-Fi Protected Access (WPA). WPA has several options 
including pre-shared key (PSK) encryption and 802.1x encryption for enterprises. 

This section presents an overview of the security options and provides guidance on when to 
use which option. Note that it is also possible to disable wireless security. NETGEAR does 
not recommend this.