Wireless Cable Modem Gateway CGD24G User Manual

Managing Your Network

4-7

v1.0, November 2008

To clear the log, click

Clear Log

; to refresh the log, click

Refresh

. You can enable e-mail

notification to receive these logs in an e-mail message. For information about e-mail

notifications, see

“Configuring Logs” on page 3-1

.

Running Diagnostic Utilities

You can use the Diagnostics screen to test connectivity to a PC using the ping command.

To start a ping test:

1.

Log in to the gateway using its default address of

or at whatever IP address

the unit is currently configured. Use the default user name of

admin

and default password of

password

, or the password you have set up.

2.

In the main menu, under Maintenance, select

Diagnostics

. The Diagnostics screen displays.

Figure 4-5

Wireless Cable Modem Gateway CGD24G User Manual

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Managing Your Network

v1.0, November 2008

3.

Under Ping Test Parameters, enter the following settings:

•

Ping Target

. Enter the IP address of the computer that you would like to ping.

•

Ping Size

. Enter the size of the ping packet.

•

No. of Pings

. Enter the number of times you would like to ping the computer.

•

Ping Interval

. Enter the time you would like to wait between the pings.

4.

Click

Start Test

.To stop the test while in progress, click

Abort Test

.

5.

To see the results of the ping test, click

REFRESH

. To clear the test results after the test has

completed, click

Clear Test

.

Figure 4-6

Wireless Cable Modem Gateway CGD24G User Manual

Customizing Your Network

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v1.1, May 2009

Chapter 5

Customizing Your Network

This chapter describes how to customize your network through the advanced settings on your

CGD24G gateway. When you log in to the gateway, these tasks are grouped under Advanced.

This chapter includes:

•

“Configuring Dynamic DNS

” on this page

•

“Restricting Access by MAC Address” on page 5-2

•

“Configuring Port Triggering” on page 5-4

•

“Setting Up a DMZ Host” on page 5-6

•

“LAN IP Settings” on page 5-7

•

“Enabling Remote Management” on page 5-9

•

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

Log in to the gateway using its default address of

or at whatever IP address the

unit is currently configured. Use the default user name of

admin

and default password of

password

, or the password you have set up.

Configuring Dynamic DNS

A dynamic DNS service provides a central public database where information (such as e-mail

addresses, host names and IP addresses) can be stored and retrieved. The dynamic DNS server also

stores password-protected information and accepts queries based on e-mail addresses.

If you want to use a dynamic DNS service, you must register for it. The dynamic DNS client

service provider will give you a password or key.

Note:

For information about port forwarding and port blocking, see

“Firewall Rules—Port Forwarding and Port Blocking” on page 3-5

.

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To configure dynamic DNS:

1.

In the main menu, under Advanced, select Dynamic DNS. The DDNS screen displays.

2.

From the DDNS Service pull down menu, select

www.DynDNS.org

.

3.

Enter the following information:

•

User Name

. Enter the user name for your dynamic DNS account.

•

Password

. Enter the password (or key) for your dynamic DNS account.

•

Host Name

. Enter the host same that your dynamic DNS service provider gave you. (The

DDNS service provider may call this the domain name.)

4.

Click

Apply

to save your settings.

To disable dynamic DNS:

1.

In the

DDNS Service

field, select

Disabled

.

2.

Click

Apply

to save your settings.

Restricting Access by MAC Address

By default, the gateway allows any connected PC to access the Internet through. The MAC

Filtering screen enables you to block specific PCs, based on their MAC address, from access to the

Internet on selected days and times.

Figure 5-1

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Customizing Your Network

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v1.1, May 2009

To configure MAC filtering:

1.

In the main menu, under Advanced, select MAC Filtering. The MAC Filtering screen displays.

The Trusted Devices table shows the PCs that are allowed access to the Internet through the

gateway. Click

Refresh

to update the Trusted Devices table.

2.

Select a device that will be added to the Add MAC Filter table through one of the following

methods:

•

If the PC that you want to block appears in the Trusted Devices table, click the radio

button for that PC to capture its MAC address in the Add MAC Filter table. If a MAC

address but no device name appears in the Add MAC Filter table, you can type a

descriptive name for the PC that you are adding to the table.

•

Manually enter the device name and MAC address of the PC you want to block to the Add

MAC Filter table.

3.

To add the device that you selected in

step 2

to the MAC Filter List, click

Add

. When you do

so, the

Enable

check box is automatically selected for that PC. Also note the following:

Figure 5-2