Chapter 3: Advanced Configuration

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Chapter 3

Time of Day Access Filter Web Page (Fig. 35)

Use this page to set rules that will block specific LAN side PCs from accessing the Internet, but

only at specific days and times. Specify a PC by its hardware MAC address, then use the tools to

specify blocking time. Finally, click the

Apply

button to save your settings.

Fig. 35

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45

Local Log and Remote Log Web Pages (Fig. 36 and 37)

The gateway builds a log of firewall blocking actions that the Firewall has taken.

Using the Local Log page lets

you specify an email address to which you want the gateway to

email this log. You must also tell the gateway your outgoing (i.e. SMTP) email server’s name, so

it can direct the email to it. Enable Email Alerts has the gateway forward email notices when

Firewall protection events occur. Click

E-mail Log

to immediately send the email log. Click

Clear

Log

to clear the table of entries for a fresh start.

The log of these events is also visible on the screen. For each blocking event type that has taken

place since the table was last cleared, the table shows Description, Count, Last Occurrence, Target,

and Source.

The Remote Log page allows you to specify the IP address where a SysLog server is located and

select different types of firewall events that may occur. Then, each time such an event occurs,

notification is automatically sent to this log server.

Fig. 36

Fig. 37

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Chapter 3

Wireless Web Pages Group

Important: Changes to the wireless web pages should be made from a PC that is hard wired to the gateway.

The Wireless web pages group enables a variety of settings that can provide secure and reliable

wireless communications for even the most demanding tech-savvy user.

The DCW725 gateway offers a choice of 802.1X, WPA and WPA-PSK authentication of your PCs

to the gateway, 64 and 128 bit WEP encryption of communication between the gateway and your

PCs to guaranty privacy, and an Access Control List function that enables you to restrict wireless

access to only your specific PCs.

The wireless function will probably work in your home as shipped from the factory, but without

the security features activated. In addition, the factory default wireless channel setting may not

provide optimum performance in your home due to interference from other wireless devices.

Therefore, the following minimum changes are recommended from the factory defaults, to secure

your wireless communications and provide optimum performance.

Performance

Because your wireless communication travels through the air, the factory default wireless channel

setting may not provide optimum performance in your home if you or your neighbors have

other interfering 2.4 GHz devices such as cordless phones. If your wireless PC is experiencing very

sluggish or dramatically slower communication compared with the speed you achieve on your

PC that is wired to the gateway, try changing the channel number.

See the 802.11b/g Basic Web

Page discussion below for details.

Authentication

Authentication enables you to restrict your gateway from communicating with any remote

wireless PCs that aren’t yours. The following minimum authentication-related changes to factory

defaults are recommended. See the 802.11b/g Basic and Access Control Web Page discussions

below for details.

Network Name (SSID) – set to a unique name you choose

Network Type – set to

Open

Access Control List

- enter your wireless PCs' MAC addresses

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47

Fig. 38

Privacy

Privacy secures or scrambles messages traveling through the air between your wireless PCs and

the gateway, so they can't be observed by others. The following minimum privacy-related setting

changes to factory defaults are recommended. See the 802.11b/g Privacy Web Page discussion

below for details.

Data Encryption – set to WEP (64-bit)

PassPhrase – use this feature to generate security keys

802.11b/g Basic Web Page (Fig. 38)

Use this page to configure the wireless 802.11b/g channel in the 2.4 GHz band you want to use

and the SSID you will use. These must match the settings you make on your wireless-equipped PC

you want to be a part of your LAN.

The SSID is your Network Name. Change the factory default to a name of your choice up to 32

characters long. The wireless radio in your gateway can be completely de-activated by changing

Interface

to

Disabled

. Click the

Apply

button to save your settings.

The Network Type control is used to hide or reveal your network name to any remote, wireless

equipped PC in the area that may be scanning WiFi channels to find available WiFi networks. The

gateway WiFi radio frequently transmits a beacon signal which can contain this network name

(SSID). If you set Network Type to

Open

, your SSID is included in that beacon, and is therefore

detectable by any nearby wireless equipped PCs in the area. The benefit of using Open, is it can

speed your WiFi setup on some PCs. If you set Network Type to

Closed

, your SSID is not included

in the beacon. This hides your network name, but as a result may require a bit more effort on your

part to set up your wireless PCs.

Details of all settings on the 802.11b/g Basic Web Page are provided in Table 1.

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Sets the Network Name (also

known as SSID) of this network.

Selecting Closed hides the network

from active scans. Selecting Open

reveals the network to active scans.

Selects a particular channel on

which to operate.

Enables or disables the wireless

interface.

Up to 32-character string

containing ASCII characters

with codes between 0x20 and

0x7e

Open, Closed

1 - 11

Enabled, Disabled

THOMSON

Open

1

Enabled

Network

Name

(SSID)

Network

Type

New

Channel

Interface

Table 1. Basic Settings Definitions

Setting

Description

Value List or Range

Default