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ADSL Gateway
Figure 5-25: List of PCs
28
Figure 5-26: Add/Edit Service
28
Figure 5-27: Single Port Forwarding
29
Figure 5-28: Port Range Forwarding
30
Figure 5-29: Port Triggering
31
Figure 5-30: DMZ
31
Figure 5-31: QoS
32
Figure 5-32: Edit List of QoS Settings
32
Figure 5-33: Management
34
Figure 5-34: Allowed IP - IP Range
34
Figure 5-35: Reporting
37
Figure 5-36: System Log
37
Figure 5-37: Ping Test
38
Figure 5-38: Backup&Restore
38
Figure 5-39: Factory Defaults
39
Figure 5-40: Firmware Upgrade
39
Figure 5-41: Reboot
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Figure 5-42: Gateway
40
Figure 5-43: Local Network
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Figure 5-44: DHCP Active IP Table
41
Figure 5-45: ARP/RARP Table
41
Figure 5-46: DSL Connection
42
Figure B-1: IP Configuration Screen
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Figure B-2: MAC Address/Adapter Address
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Figure B-3: MAC Address/Physical Address
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Figure C-1: Firmware Upgrade
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1
Chapter 1: Introduction
Welcome
ADSL Gateway
Chapter 1: Introduction
Welcome
Thank you for choosing the AG300 ADSL Gateway. This Gateway will provide your computers with a high-speed
Internet connection as well as access to local resources, including files and printers.
How does the Gateway do all of this? By connecting the Internet, as well as your computers and peripherals, to
the Gateway, you create a LAN, or Local Area Network. The Gateway lets devices on the network communicate
with each other, and it can direct and control communications for your network.
To protect your data and privacy, the Gateway features an advanced firewall to keep out Internet intruders.
Sensitive communications can be protected by powerful data encryption. In addition, you can safeguard your
family with parental control features such as Internet access restrictions and keyword blocking. You can
configure the Gateway’s settings through the easy-to-use, browser-based utility.
But what does all of this mean?
Networks are useful tools for sharing Internet access and computer resources. You can access one printer from
different computers and access data located on another computer’s hard drive. Networks are even used for
playing multiplayer video games. So, networks not only are useful in homes and offices, but also can be fun.
With your PCs and peripherals all connected to each other and to the Internet, you can now share files and
Internet access—and even play games. All the while, the ADSL Gateway protects your network from
unauthorized and unwelcome users.
Linksys recommends using the Setup CD-ROM for first-time installation of the Gateway. If you do not wish to run
the Setup Wizard on the Setup CD-ROM, then use the instructions in this Guide to help you connect the Gateway,
set it up, and configure it to bridge your network and the Internet. These instructions should be all you need to get
the most out of the ADSL Gateway.
lan
(local area network): The computers and
networking products that make up the network in
your home or office.
network
: a series of computers or devices
connected for the purpose of data sharing,
storage, and/or transmission between users
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2
Chapter 1: Introduction
What’s in this User Guide?
ADSL Gateway
What’s in this User Guide?
This user guide covers the steps for setting up and using the ADSL Gateway.
•
Chapter 1: Introduction
This chapter describes applications of the ADSL Gateway and this User Guide.
•
Chapter 2: Planning Your Network
This chapter describes the basics of networking.
•
Chapter 3: Getting to Know the ADSL Gateway
This chapter describes the physical features of the Gateway.
•
Chapter 4: Connecting the ADSL Gateway
This chapter instructs you on how to connect the Gateway to your network.
•
Chapter 5: Configuring the ADSL Gateway
This chapter explains how to use the Web-based Utility to configure the settings on the Gateway.
•
Appendix A: Troubleshooting
This appendix describes some problems and solutions, as well as frequently asked questions, regarding
installation and use of the ADSL Gateway.
•
Appendix B: Finding the MAC Address and IP Address for your Ethernet Adapter.
This appendix describes how to find the MAC address for your computer’s Ethernet adapter so you can use
the MAC filtering and/or MAC address cloning feature of the Gateway.
•
Appendix C: Upgrading Firmware
This appendix instructs you on how to upgrade the firmware on the Gateway if you should need to do so.
•
Appendix D: Glossary
This appendix gives a brief glossary of terms frequently used in networking.
•
Appendix E: Specifications
This appendix provides the technical specifications for the Gateway.
•
Appendix F: Warranty Information
This appendix supplies the warranty information for the Gateway.
•
Appendix G: Regulatory Information
This appendix supplies the regulatory information regarding the Gateway.
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3
Chapter 1: Introduction
What’s in this User Guide?
ADSL Gateway
•
Appendix H: Contact Information
This appendix provides contact information for a variety of Linksys resources, including Technical Support.
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4
Chapter 2: Planning Your Network
The Gateway’s Functions
ADSL Gateway
Chapter 2: Planning Your Network
The Gateway’s Functions
A Gateway is a network device that connects two networks together.
In this instance, the Gateway connects your Local Area Network (LAN), or the group of computers in your home or
office, to the Internet. The Gateway processes and regulates the data that travels between these two networks.
The Gateway’s NAT feature protects your network of computers so users on the public, Internet side cannot “see”
your computers.
This is how your network remains private. The Gateway protects your network by inspecting
every packet coming in through the Internet port before delivery to the appropriate computer on your network.
The Gateway inspects Internet port services like the web server, ftp server, or other Internet applications, and, if
allowed, it will forward the packet to the appropriate computer on the LAN side.
Remember that the Gateway’s ports connect to two sides. The LAN ports connect to the LAN, and the ADSL port
connects to the Internet.
The LAN ports transmit data at 10/100Mbps.
IP Addresses
What’s an IP Address?
IP stands for Internet Protocol. Every device on an IP-based network, including computers, print servers, and
Gateways, requires an IP address to identify its “location,” or address, on the network.
This applies to both the
Internet and LAN connections. There are two ways of assigning an IP address to your network devices. You can
assign static IP addresses or use the Gateway to assign IP addresses dynamically.
Static IP Addresses
A static IP address is a fixed IP address that you assign manually to a computer or other device on the network.
Since a static IP address remains valid until you disable it, static IP addressing ensures that the device assigned
it will always have that same IP address until you change it.
Static IP addresses must be unique and are
commonly used with network devices such as server computers or print servers.
NOTE:
Since the Gateway is a device that connects
two networks, it needs two IP addresses—one for
the LAN, and one for the Internet.
In this User Guide,
you’ll see references to the “Internet IP address”
and the “LAN IP address.”
Since the Gateway uses NAT technology, the only IP
address that can be seen from the Internet for your
network is the Gateway’s Internet IP address.
However, even this Internet IP address can be
blocked, so that the Gateway and network seem
invisible to the Internet—see the Block WAN
Requests description under Security in “Chapter 5:
Configuring the ADSL Gateway.”
Figure 2-1: Network
ip
(internet protocol): a protocol used to send data
over a network
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