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5
Chapter 2: Planning Your Network
IP Addresses
Wireless-N ADSL2+ Gateway
Since you use the Gateway to share your DSL Internet connection, contact your ISP to find out if they have
assigned a static IP address to your account. If so, you will need that static IP address when configuring the
Gateway. You can get that information from your ISP.
Dynamic IP Addresses
A dynamic IP address is automatically assigned to a device on the network, such as computers and print servers.
These IP addresses are called “dynamic” because they are only temporarily assigned to the computer or device.
After a certain time period, they expire and may change. If a computer logs onto the network (or the Internet) and
its dynamic IP address has expired, the DHCP server will automatically assign it a new dynamic IP address.
DHCP (Dynamic Host Configuration Protocol) Servers
Computers and other network devices using dynamic IP addressing are assigned a new IP address by a DHCP
server. The computer or network device obtaining an IP address is called the DHCP client. DHCP frees you from
having to assign IP addresses manually every time a new user is added to your network.
A DHCP server can either be a designated computer on the network or another network device, such as the
Gateway. By default, the Gateway’s DHCP Server function is enabled.
If you already have a DHCP server running on your network, you must disable one of the two DHCP servers. If you
run more than one DHCP server on your network, you will experience network errors, such as conflicting IP
addresses. To disable DHCP on the Gateway, see the DHCP section in “Chapter 5: Configuring the Wireless-N
ADSL2+ Gateway.”
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6
Chapter 3: Getting to Know the Wireless-N ADSL2+ Gateway
Ports and Reset Button on Side Panel
Wireless-N ADSL2+ Gateway
Chapter 3: Getting to Know the Wireless-N ADSL2+ Gateway
Ports and Reset Button on Side Panel
The Gateway’s ports and Reset button are located on a side panel.
DSL
The
DSL
port connects to the ADSL line.
Ethernet (1-4)
The
Ethernet
ports connect to your computers and other network devices.
Reset Button
There are two ways to reset the Gateway's factory defaults. Either press the
Reset Button
,
for approximately five seconds, or restore the defaults from the
Factory Defaults
screen of
the Administration tab in the Gateway’s Web-based Utility.
Power
The
Power
port is where you will connect the power adapter.
IMPORTANT:
Resetting the Gateway to factory
defaults will erase all of your settings
(including Internet connection, wireless, and
other settings) and replace them with the
factory defaults. Do not reset the Gateway if
you want to retain these settings.
Figure 3-1: Ports and Reset Button on Side Panel
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7
Chapter 3: Getting to Know the Wireless-N ADSL2+ Gateway
LEDs on Side Panel
Wireless-N ADSL2+ Gateway
LEDs on Side Panel
The Gateway's LEDs, which indicate network activity, are located on the other side panel.
(POWER) button
When you want to power the Gateway on or off, push this button.
POWER
Green. The
POWER
LED lights up when the Gateway is powered on.
WIRELESS
Green. The
WIRELESS
LED lights up whenever there is a successful wireless connection. If
the LED is flashing, the Gateway is actively sending or receiving data to or from one of the
devices on the network.
ETHERNET (1-4)
Green. The
ETHERNET
LED serves two purposes. If the LED is continuously lit, the Gateway
is successfully connected to a device through the Ethernet port. If the LED is flashing, it is an
indication of any network activity.
DSL
Green. The
DSL
LED lights up whenever there is a successful DSL connection. The LED
flashes while the Gateway is establishing the ADSL connection.
INTERNET
Green. The
INTERNET
LED lights up green when an Internet connection to the Internet
Service Provider (ISP) is established. The INTERNET LED lights up red when the connection
to the ISP fails.
Figure 3-2: LEDs on Side Panel
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8
Chapter 4: Connecting the Wireless-N ADSL2+ Gateway
Overview
Wireless-N ADSL2+ Gateway
Chapter 4: Connecting the Wireless-N ADSL2+ Gateway
Overview
The installation technician from your ISP should have left the setup information with you after installing your
broadband connection. If not, you can call your ISP to request that data. After you have the setup information you
need for your specific type of Internet connection, you can begin installation and setup of the Gateway.
To use a computer with an Ethernet adapter to configure the Gateway, continue to “Wired Connection to a
Computer.” To use a wireless-equipped computer, continue to “Wireless Connection to a Computer.”
Wired Connection to a Computer
1.
Make sure that all of your network’s hardware is powered off, including the Gateway and all computers.
2.
Connect a phone cable from the DSL port on the Gateway’s side panel to the wall jack of the ADSL line. A
small device called a microfilter (not included) may be necessary between each phone and wall jack to
prevent interference. Contact your ISP if you have any questions.
3.
Connect one end of an Ethernet network cable to one of the Ethernet ports (labeled 1-4) on the back of the
Gateway, and the other end to an Ethernet port on a computer. Repeat this step to connect more computers, a
switch, or other network devices to the Gateway.
4.
Connect the power adapter to the Gateway’s Power port, and then plug the power adapter into a power outlet.
The Power LED on the front panel will light up green as soon as the power adapter is connected properly. The
Power LED will flash for a few seconds, and then it will be solidly lit when the self-test is complete. If the LED
flashes for one minute or longer, see “Appendix A: Troubleshooting.”
5.
Power on one of your computers that is connected to the Gateway.
Go to “Chapter 5: Configuring the Wireless-N ADSL2+ Gateway.”
NOTE:
A small device called a microfilter (not included) may be necessary between each phone
and wall jack to prevent interference.
Contact your ISP if you have any questions.
NOTE:
You should always plug the Gateway’s power adapter into a power strip with surge
protection.
Figure 4-2: Connect a PC
Figure 4-1: Connect the ADSL Line
Figure 4-3: Connect the Power
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9
Chapter 4: Connecting the Wireless-N ADSL2+ Gateway
Wireless Connection to a Computer
Wireless-N ADSL2+ Gateway
Wireless Connection to a Computer
If you want to use a wireless connection to access the Gateway, follow these instructions:
1.
Make sure that all of your network’s hardware is powered off, including the Gateway and all computers.
2.
Connect a phone cable from the DSL port on the Gateway’s back panel to the wall jack of the ADSL line. A
small device called a microfilter (not included) may be necessary between each phone and wall jack to
prevent interference. Contact your ISP if you have any questions.
3.
Connect the power adapter to the Power port, and then plug the power adapter into a power outlet.
The Power LED on the front panel will light up green as soon as the power adapter is connected properly. The
Power LED will flash for a few seconds, and then it will be solidly lit when the self-test is complete. If the LED
flashes for one minute or longer, see “Appendix A: Troubleshooting.”
4.
Power on one of the computers on your wireless network(s).
5.
For initial access to the Gateway through a wireless connection, make sure the computer’s wireless adapter
has its SSID set to
linksys
(the Gateway’s default setting), and its wireless security is disabled. After you have
accessed the Gateway, you can change the Gateway and this computer’s adapter settings to match your usual
network settings.
Go to “Chapter 5: Configuring the Wireless-N ADSL2+ Gateway.”
NOTE:
You should always change the SSID from
its default,
linksys
, and enable wireless security.
Figure 4-4: Connect the ADSL Line
Figure 4-5: Connect the Power
NOTE:
A small device called a microfilter (not included) may be necessary between each phone
and wall jack to prevent interference.
Contact your ISP if you have any questions.
NOTE:
You should always plug the Gateway’s power adapter into a power strip with surge
protection.

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