AT&T AC8200 User manual

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AT&T AC8200 Installation Guide
Version 5.4
©AT&T Corp. All Rights Reserved.
Note: this manual also covers the SG8200

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TABLE OF CONTENTS
Installing the AT&T AC8200................................................................................................................ 3
Step 1: Establish Physical Connectivity to the Internet...............................................................3
Option a. Wired Ethernet Connection..............................................................................4
Option b. Dial as Primary Connection.............................................................................4
Option c. Cellular Connection......................................................................................... 5
Step 2: Establish Local Network Connectivity............................................................................. 5
Configuring the AT&T AC8200............................................................................................................ 5
Access the AT&T AC8200 Web Interface...................................................................................5
Primary Interface Set-up ............................................................................................................ 6
Configuring a Static IP Address......................................................................................7
Configuring PPPoE......................................................................................................... 7
Configuring an Always-on 3G/4G Cellular Connection.................................................... 8
Configuring a Dial as Primary Connection ......................................................................8
Configuring a controllable 3G/4G Cellular Connection....................................................8
3G/4G Cellular service verification..................................................................................9
Administrator Access................................................................................................................ 10
Establishing VPN Connectivity................................................................................................. 10
LAN Port Configuration..................................................................................................................... 13
VLANS..................................................................................................................................... 13
Hub Mode ................................................................................................................................ 15
Item
LOGO
警語/ Simple Chinese warning statement
海拔2000 M
(altitude 2000M)
仅适用于海拔2000m以下地区安全使用
(can only be safely used lower than 2,000 meters altitude)
非熱帶氣候
(non-tropical weather)
仅适用于非热带气候条件下安全使用
(can only be safely used in non-tropical weather)

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Installing the AT&T AC8200
Unpack the AT&T AC8200, the cables, and the power supply. Plug the AT&T AC8200 into your local
power source.
Installation steps vary depending on type of Internet connection and type of local network connectivity.
See Figure 1 for connectors on the rear panel of the AT&T AC8200.
!WARNING!
Nouserserviceableparts.
Donotremovecover.
POWER
SUPPLY
-+
OPTIONAL
USB DEVICE
OPTIONAL
DIAL
LINE
12VDC 1.5A Modem RST
USB 1 USB 2 USB 3
OPTIONAL
USB DEVICE
OPTIONAL
USB DEVICE
CONSOLE
CONSOLE
PORT RESET
LAN
LAN
EQUIPMENT
13 5 7
24 6 8
SECONDARY
BROADBAND
PORT
PRIMARY
BROADBAND
PORT
WAN 1 WAN 2
Figure 1: AT&T AC8200 Rear Panel
Follow the guide below to determine the necessary set-up steps for your environment.
Step 1: Establish Physical Connectivity to the Internet
In most cases, a wired Ethernet connection will be provided by your ISP. This type of connection
includes DSL, Cable and Managed Internet Connections. It is also possible to connect to the Internet
via a dial up connection, or via high speed cellular access, in which case you should proceed to the
appropriate section in this guide.
Once an Internet Connection has been established, the AT&T AC8200 will try to retrieve its
configuration from the network, and if successful, may perform an automatic reboot to pick up the new
configuration. This should occur within the first 2-3 minutes after initial power on. Wait for a steady
GREEN ONLINE light on the front panel to indicate the AT&T AC8200 is ready for use.
Basic connectivity is shown in Figure 2. Devices in the local network are connected to one or more of
the LAN ports on the rear of the AT&T AC8200; the broadband connection is usually established via the
WAN 1 port. An optional dial connection is also possible via the supplied cable.

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!WARNING!
Nouserserviceableparts.
Donotremovecover.
-+
12VDC 1.5A
LAN
13 5 7
24 6 8
RST
USB 1 USB 2 USB 3CONSOLE
INTERNET
Optional Analog
Phone Line
Broadband Internet
Device (DSL / Cable
modem)
Other network devices
Computer
Modem WAN 2WAN 1
Figure 2: Basic Network Connectivity
Option a. Wired Ethernet Connection
Use a standard; sometimes called “straight-through”, Ethernet cable (usually provided by your
Broadband Internet Service Provider) to connect your Internet broadband interface device
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to the
Ethernet port labeled WAN 1 on the AT&T AC8200. The AT&T AC8200 should be connected directly to
the broadband interface device.
Dynamic Host Control Protocol (DHCP) is the default configuration for Internet IP addressing of the
AT&T AC8200 Internet network interface using the WAN1 port. If your device automatically obtains an
address from your ISP through DHCP, it should auto-configure shortly after powering up.
If your Broadband Internet Service Provider supplied you with a static IP address or PPPoE account
information for use with your broadband connection, you will need to perform additional configuration of
the primary interface through the AT&T AC8200 web interface in order to establish Internet access and
to retrieve device configuration. See the appropriate section later in the guide.
Option b. Dial as Primary Connection
Connect the supplied phone cable between the port labeled Modem on the AT&T AC8200 and a
standard analog phone outlet.
The AT&T AC8200 needs basic set-up of the dial interface before it can connect to the Internet to
retrieve its configuration. Dial set-up through the AT&T AC8200 web interface is covered later in this
guide.
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DSL modem, Cable Modem, etc.

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Option c. Cellular Connection
Insert your approved cellular USB modem into one of the USB ports labeled USB 1, USB 2, or USB 3
on the AT&T AC8200.
The AT&T needs basic set-up of the cellular USB modem through the web interface before it can
connect to the Internet to retrieve its configuration. See the appropriate section later in the guide.
Step 2: Establish Local Network Connectivity
In most cases, your devices will attach directly to the AT&T AC8200 via one of the 8 VLAN ports via a
standard Ethernet cable. One black standard cable is provided. The Local LAN ports are all auto-
sensing, so either a straight-through or a crossover cable can be used interchangeably.
The default configuration for computers attaching to any of the AT&T AC8200 Local LAN ports is
DHCP. If you are not sure if you are using DHCP for your LAN IP addressing, please contact your
Information Services (IS) Department for assistance before proceeding.
If your computer is configured to use DHCP, but the AT&T AC8200 is not providing your computer with
an IP address, please contact your IS Department. In this case you will not be able to access the Web
Interface as described below.
Note: After the AT&T AC8200 has retrieved its configuration, the IP addresses given out on the LAN
ports are likely to change. For that reason it may be better to delay attaching any devices to the LAN
ports until AFTER configuration has been retrieved and the AT&T AC8200 reboots. If the IP addressing
does change, it may be necessary to enable/disable the Ethernet interface on attached devices to
obtain a valid IP address via DHCP.
Configuring the AT&T AC8200
In most cases, no user-level configuration is required as an IP address is retrieved automatically
through DHCP and the device configuration is retrieved from the network. In some cases it is necessary
to perform some initial configuration through the Web Interface –for example if the primary Internet
connection needs to be manually configured prior to use.
Access the AT&T AC8200 Web Interface
The AT&T AC8200 web interface can be accessed from a computer attached to a LAN port on the
AT&T AC8200. The web interface can be used to access various administration functions and can
allow the VPN connection to be controlled.
1. Open your browser.
2. In the Address or Location box enter and press the Enter key.
3. This will take you to one of several possible initial pages, depending on your configuration
and connectivity options. Common navigation icons appear on the upper left side of each
page for access to “Home”, “Control Panel” and “Help”
In the event that the AT&T AC8200 has already retrieved its configuration, it may have been configured
for Administrator access. See Administrator Access on page 10 for more information on gaining
administrator access to the web interface.

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Primary Interface Set-up
To configure the primary interface for something other than DHCP, follow these steps to configure:
1. Access the web interface as described at the top of the page
2. Click on the Control Panel navigation icon.
3. Click the entry for Network Settings to display the Network Settings sub-menu and click the
entry for AT&T AC8200 IP Settings as shown in Figure 3
Figure 3: Network Settings Selection
Figure 4 will be displayed where you will be given the opportunity to select your primary connection
type.

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Figure 4: AC8200 IP Settings Window
If you are not sure how your Internet Access should be configured, contact your IS department. Two
basic types of connection are offered. An “Always-On Internet Connection” means that the connection
will normally always be available, and the AT&T AC8200 will try to re-establish connectivity if the
connection is lost. The other type is for where an Internet connection is only established when required.
This is commonly used where having a connection up at all times may be expensive and there are
periods of time when the connection is not required. Continue configuration from the section
appropriate to your connection type.
Configuring a Static IP Address
To configure a static IP address, follow these steps after reaching Figure 4:
1. Select the radio button next to “Static” on Figure 4 and click OK to proceed to the Static IP
set up window.
2. Enter the information requested and press OK to save the new settings.
3. At the end of the set-up, you will be asked to reboot to pick up the new configuration. After
reboot, skip to the section titled “Establishing VPN Connectivity” on Page 10.
Configuring PPPoE
To configure PPPoE Account information, follow these steps after reaching Figure 4:
1. Select the radio button next to “PPPoE” on Figure 4 on and click OK to proceed to the to the
PPPoE set up window
2. Enter the information requested and press OK to save the new settings.
3. At the end of the set-up, you will be asked to reboot to pick up the new configuration. After
reboot, skip to the section titled “Establishing VPN Connectivity” on Page 10.

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Configuring an Always-on 3G/4G Cellular Connection
To configure a 3G/4G Cellular always-on connection, follow these steps after reaching Figure 4:
1. Ensure your supported 3G/4G Cellular USB modem is inserted into one of the USB ports
on the rear of the AT&T AC8200.
2. Select the radio button next to 3G Cellular in the “Always-On” section and click OK to
proceed to the set-up sequence.
3. You will be guided through a sequence of windows where you will be asked to provide
information relating to your specific 3G/4G cellular USB modem connection such as
selecting your USB modem from a drop-down list.
4. For more detailed information on supported 3G/4G Cellular USB modems and
associated configuration, please contact your IS Department.
5. At the end of the set-up, you will see a summary of the configuration and will be asked to
reboot to pick up the new configuration. After reboot, skip to the section “Establishing
VPN Connectivity” on page 10.
Configuring a Dial as Primary Connection
To configure a dial connection for Primary Access, follow these steps after reaching Figure 4:
1. Select the radio button next to Dial on Figure 4 and click OK to proceed to the Dial Setup
sequence
2. You will be guided through a sequence of windows where you will be asked for a variety of
information relating to your dial connection such as your current location and dial prefixes
necessary to reach an outside line.
3. Follow the instructions on the web pages. The AT&T AC8200 may initiate a dial connection
as part of set-up in order to determine the best local number to dial.
4. At the end of the set-up, you will see a summary of the configuration and will be asked to
reboot to pick up the new configuration. After reboot, skip to the section titled “Establishing
VPN Connectivity” on Page 10.
Configuring a controllable 3G/4G Cellular Connection
To configure a 3G/4G Cellular controllable connection, follow these steps after reaching Figure 4:
1. Ensure your supported 3G/4G cellular USB modem is inserted into one of the USB ports on
the rear of the AT&T AC8200.
2. Select the radio button next to 3G/4G Cellular in the “User Controllable Dial as Primary
Connection” section and click OK to proceed to the set-up sequence.
3. You will be guided through a sequence of windows where you will be asked to provide
information relating to your specific 3G/4G Cellular USB modem connection such as
selecting your USB Modem from a drop-down list.
4. For more detailed information on supported 3G/4G Cellular USB modems and associated
configuration, please contact your IS Department.
5. At the end of the set-up, you will see a summary of the configuration and will be asked to
reboot to pick up the new configuration. After reboot, skip to the section titled “Establishing
VPN Connectivity” on Page 10.

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3G/4G Cellular service verification
After completing set up of either mode of 3G/4G connection, it is important to determine that there is
adequate signal strength before deciding on a final installed position. Cellular coverage can vary, even
over a short distance and a bad placement of the AT&T AC8200 can result in substandard or even non-
existent cellular service.
You can check the signal strength at site of install by pressing the “reset” button on the back while
powered on with the 3G/4G Cellular USB modem inserted. A paper clip or other sharp object will be
required to properly depress this button.
The signal strength will be represented by a sequence of LEDs illuminated on the front panel. Up to 6
LEDs, starting with the “online” light may be illuminated depending on detected strength. The signal
strength will appear in this form for 5 seconds. At least three LEDs of signal strength are
recommended.
Figure 5: Cellular Signal Strength Display
The unit should be installed in a location that gives optimal signal strength.

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Administrator Access
If there is more than one user of your AT&T AC8200, one or more users may be designated as
administrators by your IS Department. If your AT&T AC8200 was set up for administrator access,
Figure 6 is displayed and you must select your authentication level. You must be a designated
administrator to configure or control the AT&T AC8200. Select Administrator, enter the password
provided by your IS Department and click OK.
If an Administrator password is not required, Figure 6 is not displayed. The AT&T AC8200 must be able
to retrieve configuration from the network in order to implement Administrator access.
Figure 6: AT&T AC8200 Administration Panel
Establishing VPN Connectivity
The authentication mode of your AT&T AC8200 is determined by the service parameters ordered by
your IS Department. All configurations require a username and password of some form and may also
require other information. This information may be downloaded from the network and the AT&T
AC8200 may be set to automatically establish connectivity. To establish a VPN connection with your
AT&T AC8200 follow these steps:
1. Open your browser as described under Access the AT&T AC8200 Web Interface on page 5
and if necessary click the Home button to view the Login screen. The form of the screen will
depend on the network and type of authentication configured.

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Figure 7: Example of Login Screen
2. One or more VPN connections may have been defined. Each VPN connection will be represented in
a status box on the left side of the screen, showing the current state of each connection. If there is
more than one VPN connection defined, only the first VPN connection can be user controlled. The
others will be established and maintained automatically. The user controllable connection status will
always be the top entry in the status box.
3. If user input is required in order to establish the primary VPN connection, provide the requested
information and click Connect.
4. The AT&T AC8200 authenticates your credentials and establishes a secure VPN connection to your
network.
5. A status screen will be shown similar to Figure 6 until the VPN connection is terminated.

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Figure 8: Example of Logged in Screen

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LAN Port Configuration
VLANS
VLAN support allows segmentation of the 8 Local LAN ports into different logical LANs, each with its
own address range, and addressing method (DHCP, DHCP Relay, or static). If your AT&T AC8200 has
been configured for VLANs, as part of installation you will need to know which of the 8 Local LAN Ports
attach to each network.
You can view the VLAN configuration through the AT&T AC8200 Web Interface as described below.
After initial power on, and once the Internet Connection has been correctly configured, the AT&T
AC8200 will retrieve its configuration from the network and will likely perform an automatic reboot to
pick up the new configuration. This should occur within the first 2-3 minutes after initial power on. You
will not be able to view the VLAN configuration until the AT&T AC8200 has successfully
retrieved its configuration.
1. Following the automatic reboot, when the green power light remains on steady, open your
browser as described in Access the AT&T AC8200 Web Interface on page 5. You may need
to disable then enable your Ethernet connection on your PC if the IP addressing has
changed due to VLAN configuration.
2. Click on the Control Panel navigation icon.
3. Click the entry for Network Settings to display the Network Settings sub-menu and click the
entry for Local LAN Settings as shown in Figure 9.
Figure 9: Navigation to LAN Settings
4. The next window will display the Local LAN Settings. If VLANs have been configured, the
display will appear as in Figure 10. If VLANs have not been configured, the display will
appear as in Figure 12. If no VLANs have been configured, skip to the description for “Hub
Mode” on page 15.

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5. The display shows a number of rows, sorted by VLAN ID that describes which back-panel
Ethernet ports are assigned to each VLAN.
The numbers in the Port column correspond to the numbers printed on the back of the AT&T
AC8200.
6. Attach your Local LAN cables to an appropriate port based on designated VLAN. If more
than one port has been allocated to a VLAN, any of those ports can be used.
Figure 10: Local LAN Settings - VLANs
7. If you are not sure of the Network-to-VLAN number mapping, click on any of the VLAN ID
hyperlinks to view detailed information on the VLAN
8. The next window will display the details for the VLAN. The format and content depend on
factors such as whether DHCP or DHCP relay are being used, or whether static IP
addresses have been configured. In the example for Figure 11, DHCP is configured and so
the range of IP addresses and subnet mask is displayed. Information on any addresses
already given out using DHCP will also appear on this window.

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Figure 11: VLAN DHCP Settings
1. If you are still unsure what VLAN IDs and ports apply to your local networks, contact your
support department.
2. When complete, return to Establishing VPN Connectivity on Page 10.
Hub Mode
If no VLANs have been configured by your IS Department, all 8 Local LAN ports on the back of the
AT&T AC8200 are considered equivalent and selecting Local LAN Settings as shown in Figure 9 will
result in the basic Port Information display as shown in Figure 12 below. In this case, Local LAN
equipment can be plugged into any available port on the back of the AT&T AC8200. If you see this
page and you think that VLANs SHOULD have been configured, please contact your IS department.
When complete, return to Establishing VPN Connectivity on Page 10

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Figure 12: Local LAN Settings - Ports Version 5.4
© 2012 AT&T Inc. All Rights Reserved.
#520101-3