Allied Telesis AT-AR256E v3 User manual

PN 613-000984 Rev. A
AT-AR256E v3
4 Ports ADSL2/2+ Router
User Manua

2 AT-AR256E v3 - 4 Ports ADSL2/2+ Router - User Manua
Copyright © 2008 A ied Te esis, Inc.
A rights reserved. No part of this pub ication may be reproduced without prior written permission from A ied
Te esis, Inc.
Microsoft and Internet Exp orer are registered trademarks of Microsoft Corporation. Netscape Navigator is a
registered trademark of Netscape Communications Corporation. A other product names, company names, ogos
or other designations mentioned herein are trademarks or registered trademarks of their respective owners.
A ied Te esis, Inc. reserves the right to make changes in specifications and other information contained in this
document without prior written notice. The information provided herein is subject to change without notice. In no
event sha A ied Te esis, Inc. be iab e for any incidenta , specia , indirect, or consequentia damages whatsoever,
inc uding but not imited to ost profits, arising out of or re ated to this manua or
the information contained herein,

AT-AR256E v3 4 Ports ADSL2/2+ Router User Manua 3
SAFETY NOTICE
Do not open service or change any component.
On y qua ified technicians are a owed to service the equipment.
Observe safety precautions to avoid e ectric shock
Check vo tage before connecting to the power supp y.
Connecting to the wrong vo tage wi damage the equipment.
LIMITATION OF LIABILITY AND DAMAGES
THE PRODUCT AND THE SOFTWARES WITHIN ARE PROVIDED "AS IS," BASIS. THE
MANUFACTURER AND MANUFACTURER’S RESELLERS (COLLECTIVELY REFERRED TO AS
“THE SELLERS”) DISCLAIM ALL WARRANTIES, EXPRESS, IMPLIED OR STATUTORY,
INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF
NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE,
OR ANY WARRANTIES ARISING FROM COURSE OF DEALING, COURSE OF
PERFORMANCE, OR USAGE OF TRADE. IN NO EVENT WILL THE SELLERS BE LIABLE FOR
DAMAGES OR LOSS, INCLUDING BUT NOT LIMITED TO DIRECT, INDIRECT, SPECIAL
WILFUL, PUNITIVE, INCIDENTAL, EXEMPLARY, OR CONSEQUENTIAL, DAMAGES,
DAMAGES FOR LOSS OF BUSINESS PROFITS, OR DAMAGES FOR LOSS OF BUSINESS OF
ANY CUSTOMER OR ANY THIRD PARTY ARISING OUT OF THE USE OR THE INABILITY
TO USE THE PRODUCT OR THE SOFTWARES, INCLUDING BUT NOT LIMITED TO THOSE
RESULTING FROM DEFECTS IN THE PRODUCT OR SOFTWARE OR DOCUMENTATION,
OR LOSS OR INACCURACY OF DATA OF ANY KIND, WHETHER BASED ON CONTRACT,
TORT OR ANY OTHER LEGAL THEORY, EVEN IF THE PARTIES HAVE BEEN ADVISED OF
THE POSSIBILITY OF SUCH DAMAGES. THE ENTIRE RISK AS TO THE RESULTS AND
PERFORMANCE OF THE PRODUCT OR ITS SOFTWARE IS ASSUMED BY CUSTOMER.
BECAUSE SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY
FOR DAMAGES, THE ABOVE LIMITATION MAY NOT APPLY TO THE PARTIES. IN NO
EVENT WILL THE SELLERS’ TOTAL CUMULATIVE LIABILITY OF EACH AND EVERY KIND IN
RELATION TO THE PRODUCT OR ITS SOFTWARE EXCEED THE AMOUNT PAID BY
CUSTOMER FOR THE PRODUCT.

4 AT-AR256E v3 - 4 Ports ADSL2/2+ Router - User Manua
ELECTRICAL SAFETY AND EMISSIONS STANDARDS
This product meets the fo owing standards.
U.S. Federal Co unications Co ission
This device comp ies with Part 15 of the FCC Ru es. Operation is subject to the fo owing two conditions:
This device may not cause harmfu interference.
This device must accept any interference received, inc uding interference that may cause undesired operation.
Note: This equipment has been tested and found to comp y with the imits for a C ass B digita device, pursuant to part 15 of the FCC
Ru es. These imits are designed to provide reasonab e protection against harmfu interference in a residentia insta ation. This
equipment generates, uses, and can radiate radio frequency energy and, if not insta ed and used in accordance with the instructions,
may cause harmfu interference to radio communications. However, there is no guarantee that interference wi not occur in a
particu ar insta ation. If this equipment does cause harmfu interference to radio or te evision reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the fo owing measures:
- Reorient or re ocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an out et on a circuit different from that to which the receiver is connected.
- Consu t the dea er or an experienced radio/TV technician for he p.
Canadian Depart ent of Co unications
This C ass B digita apparatus meets a requirements of the Canadian Interference-Causing Equipment Regu ations.
Cet apparei numérique de a c asse B respecte toutes es exigences du Règ ement sur e matérie broui eur du Canada.
CE Marking Warning
This is a C ass B product. In a domestic environment this product may cause radio interference in which case the user may be required
to take adequate measures.
I portant: Appendix A contains trans ated safety statements for insta ing this equipment. When you see the  go to Appendix
A for the trans ated safety statement in your anguage.
Wichtig: Anhang A enthä t übersetzte Sicherheitshinweise für die Insta ation dieses Geräts.Wenn Sie  sehen, sch agen Sie in
Anhang A den übersetzten Sicherheitshinweis in Ihrer Sprache nach.
Vigtigt: Ti æg A indeho der oversatte sikkerhedsadvars er, der vedrører insta ation af dette udstyr. Når De ser symbo et  , ska
De s å op i ti æg A og finde de oversatte sikkerhedsadvars er i Deres eget sprog.
Belangrijk: Appendix A bevat vertaa de vei igheidsopmerkingen voor het insta eren van deze apparatuur.Wanneer u de  ziet,
raadp eeg Appendix A voor vertaa de vei igheidsinstructies in uw taa .
I portant : L'annexe A contient es instructions de sécurité re atives à 'insta ation de cet équipement. Lorsque vous voyez e
symbo e  , reportez-vous à 'annexe A pour consu ter a traduction de ces instructions dans votre angue.
Tärkeää: Liite A sisä tää tämän aitteen asentamiseen iittyvät käännetyt turvaohjeet. Kun näet  -symbo in, katso käännettyä
turvaohjetta iitteestä A.
I portante: ’Appendice A contiene avvisi di sicurezza tradotti per ’insta azione di questa apparecchiatura. I simbo o  ,indica di
consu tare ’Appendice A per ’avviso di sicurezza ne a propria ingua.
Viktig:Ti egg A inneho der oversatt sikkerhetsinformasjon for insta ering av dette utstyret. Når du ser  , åpner du ti Ti egg A for
å finne den oversatte sikkerhetsinformasjonen på ønsket språk.
I portante:O Anexo A contém advertências de segurança traduzidas para insta ar este equipamento. Quando vir o símbo o  ,
eia a advertência de segurança traduzida no seu idioma no Anexo A.
I portante: E Apéndice A contiene mensajes de seguridad traducidos para a insta ación de este equipo. Cuando vea e símbo o
 , vaya a Apéndice A para ver e mensaje de seguridad traducido a su idioma.
Obs! Bi aga A innehå er översatta säkerhetsmedde anden avseende insta ationen av denna utrustning. När du ser  ,ska du gå ti
Bi aga A för att äsa det översatta säkerhetsmedde andet på ditt språk.

AT-AR256E v3 4 Ports ADSL2/2+ Router User Manua 5
CONTENTS
Preface ...................................................................................................................................................................................9
Purpose of This Guide ...............................................................................................................................................9
How This Guide is Organized..................................................................................................................................9
Document Conventions ............................................................................................................................................9
Contacting A ied Te esis ................................................................................................................................................10
On ine Support...........................................................................................................................................................10
Emai and Te ephone Support ................................................................................................................................10
Warranty .....................................................................................................................................................................10
Where to Find Web-based Guides ......................................................................................................................10
Returning Products ...................................................................................................................................................10
Sa es or Corporate Information............................................................................................................................10
Management Software Updates.............................................................................................................................10
Te Us What You Think .........................................................................................................................................10
Chapter 1: Introduction ..................................................................................................................................................11
Requirements .............................................................................................................................................................11
Software ..............................................................................................................................................................11
Hardware ............................................................................................................................................................11
Package Contents......................................................................................................................................................11
Device Design ............................................................................................................................................................11
Back Pane ...........................................................................................................................................................11
Front Pane ..........................................................................................................................................................12
Chapter 2: About the Web User Interface................................................................................................................13
Accessing the Web User Interface .......................................................................................................................13
Web User Interface Components ........................................................................................................................13
Buttons.................................................................................................................................................................13
Menus...................................................................................................................................................................14
Chapter 3: Basic Menu ....................................................................................................................................................15
Home............................................................................................................................................................................15
Quick Start..................................................................................................................................................................15
LAN Configuration ...................................................................................................................................................16
Diagnostics ..................................................................................................................................................................17
Chapter 4: Advanced Menu............................................................................................................................................18
WAN............................................................................................................................................................................18
New Connection...............................................................................................................................................18
ADSL Modu ation..............................................................................................................................................22
Connection Scan ...............................................................................................................................................23
LAN...............................................................................................................................................................................24
LAN Configuration ...........................................................................................................................................24
LAN Group Configuration .............................................................................................................................25
Assign ISP DNS, SNTP.....................................................................................................................................26
LAN C ients........................................................................................................................................................27
App ications.................................................................................................................................................................27
Universa P ug and P ay (UPnP)......................................................................................................................28
Simp e Network Time Protoco ....................................................................................................................28
IGMP Proxy ........................................................................................................................................................29
TR-068 WAN Access ......................................................................................................................................30
DNS Proxy..........................................................................................................................................................31
Dynamic DNS C ient........................................................................................................................................31
Port Forwarding ................................................................................................................................................32
Bridge Fi ters ......................................................................................................................................................34

6 AT-AR256E v3 - 4 Ports ADSL2/2+ Router - User Manua
Web Access Contro ....................................................................................................................................... 35
Qua ity of Service...................................................................................................................................................... 36
Egress................................................................................................................................................................... 36
Ingress.................................................................................................................................................................. 38
QoS Shaper Configuration ............................................................................................................................. 42
Po icy Routing Configuration......................................................................................................................... 45
Routing.........................................................................................................................................................................47
Static Routing.....................................................................................................................................................47
Routing Tab e.....................................................................................................................................................48
System Password.......................................................................................................................................................48
Changing the System Password.....................................................................................................................48
Changing the Timeout Settings .....................................................................................................................49
Firmware Upgrade....................................................................................................................................................49
Restoring the Defau t Settings ...............................................................................................................................49
Chapter 5: Security Menu...............................................................................................................................................50
IP Fi ters.......................................................................................................................................................................50
LAN Iso ation .............................................................................................................................................................51
Chapter 6: Status Menu .................................................................................................................................................. 52
Connection Status.....................................................................................................................................................53
System Log..................................................................................................................................................................53
Remote Log ................................................................................................................................................................54
Network Statistics ....................................................................................................................................................55
DHCP C ients ............................................................................................................................................................56
QoS Status ..................................................................................................................................................................56
Modem Status ............................................................................................................................................................ 57
Product Information .................................................................................................................................................57
Chapter 7: He p Menu.....................................................................................................................................................58

AT-AR256E v3 4 Ports ADSL2/2+ Router User Manua 7
FIGURES
Figure 1: Back Pane ........................................................................................................................................................... 11
Figure 2: LEDs on front pane ......................................................................................................................................... 12
Figure 3: Menu Bar............................................................................................................................................................. 14
Figure 4: Basic Home menu.............................................................................................................................................15
Figure 5: LAN Configuration........................................................................................................................................... 16
Figure 6: DSL Modem Test..............................................................................................................................................17
Figure 7: Advanced menu................................................................................................................................................. 18
Figure 8: New PPPoE Connection Setup ..................................................................................................................... 19
Figure 9: New PPPoA Connection Setup..................................................................................................................... 19
Figure 10: New Static Connection Setup..................................................................................................................... 20
Figure 11: New DHCP Connection Setup .................................................................................................................. 20
Figure 12: New Bridge Connection Setup................................................................................................................... 21
Figure 13: ADSL Modu ation ........................................................................................................................................... 22
Figure 14: Connection Scan............................................................................................................................................. 23
Figure 15: LAN Configuration.........................................................................................................................................24
Figure 16: LAN Group Configuration........................................................................................................................... 25
Figure 17: LAN C ients ..................................................................................................................................................... 27
Figure 18: UPnP ................................................................................................................................................................. 28
Figure 19: SNTP.................................................................................................................................................................. 28
Figure 20: IGMP Proxy......................................................................................................................................................29
Figure 21: Enab e WAN Access Update ...................................................................................................................... 30
Figure 22: DNS Proxy....................................................................................................................................................... 31
Figure 23: Dynamic DNS C ient..................................................................................................................................... 32
Figure 24: Port Forwarding.............................................................................................................................................. 32
Figure 25: Bridge Fi ters.................................................................................................................................................... 34
Figure 26: Web Access Contro ..................................................................................................................................... 35
Figure 27: Egress................................................................................................................................................................. 37
Figure 28: Layer 2 Egress ................................................................................................................................................. 37
Figure 29: Layer 3 Egress ................................................................................................................................................. 38
Figure 30: Untrusted mode Ingress ............................................................................................................................... 39
Figure 31: Layer 2 Ingress ................................................................................................................................................40
Figure 32: Layer 3 Ingress ................................................................................................................................................41
Figure 33: Static .................................................................................................................................................................. 42
Figure 34: QoS Shaper Configuration........................................................................................................................... 43
Figure 35: HTB Queue Discip ine enab ed .................................................................................................................. 44
Figure 36: Low Latency Queue Discip ine enab ed ................................................................................................... 44
Figure 37: PRIOWRR enab ed ........................................................................................................................................ 45

8 AT-AR256E v3 - 4 Ports ADSL2/2+ Router - User Manua
Figure 38: Po icy Routing Configuration ...................................................................................................................... 45
Figure 39: Static Routing .................................................................................................................................................. 47
Figure 40: Routing Tab e .................................................................................................................................................. 48
Figure 41: Security menu.................................................................................................................................................. 50
Figure 42: IP Fi ters............................................................................................................................................................ 50
Figure 43: LAN Iso ation .................................................................................................................................................. 51
Figure 44: Status menu ..................................................................................................................................................... 52
Figure 45: Connection Status.......................................................................................................................................... 53
Figure 46: System Log....................................................................................................................................................... 53
Figure 47: Remote Log Settings...................................................................................................................................... 54
Figure 48: Network Statistics – Ethernet .................................................................................................................... 55
Figure 49: Network Statistics – DSL............................................................................................................................. 55
Figure 50: DHCP C ients ................................................................................................................................................. 56
Figure 51: QoS Status ....................................................................................................................................................... 56
Figure 52: Modem Status ................................................................................................................................................. 57
Figure 53: Product Information...................................................................................................................................... 57
Figure 54: He p menu........................................................................................................................................................ 58

AT-AR256E v3 4 Ports ADSL2/2+ Router User Manua 9
Preface
Purpose of This Guide
This guide describes the AT-AR256E v3 4 Ports ADSL2/2+ Router Management interface for a owing users
or network managers to correct y configure the router getting the most of it.
How This Guide is Organized
This guide contains the fo owing chapters and appendices:
Chapter 1 Introduction, describes the features, functions, LEDs, and ports on the equipment.
P ease refer to AT-AR256E Quick Setup Guide for information on how to insta and
setup the router.
Chapter 2 About the Web User Interface, introduces the web user interface genera settings,
how to se ect options and how to move among menus.
Chapters 3-7 Exp ain the usage of the various menus.
Docu ent Conventions
This guide uses severa conventions that you shou d become fami iar with before you begin to insta the
product:


 Note
A note provides additiona information. P ease go to the A ied Te esis website
http://www.alliedtelesis.co for the trans ated safety statement in your anguage.
Warning
A warning indicates that performing or omitting a specific action may resu t in bodi y injury.
Caution
A caution indicates that performing or omitting a specific action may resu t in equipment damage
or oss of data.

10 AT-AR256E v3 - 4 Ports ADSL2/2+ Router - User Manua
Contacting Allied Telesis
This section provides A ied Te esis contact information for technica support as we as sa es and corporate
information.
Online Support
You can request technica support on ine by accessing the A ied Te esis Know edge Base:
http://www.alliedtelesis.co /kb/. You can use the Know edge Base to submit questions to our technica
support staff and review answers to previous y asked questions.
E ail and Telephone Support
For Technica Support via emai or te ephone, refer to the Support & Services section of the A ied Te esis
web site: http://www.alliedtelesis.co /support/.
Warranty
For product registration and warranty conditions p ease visit A ied Te esis website:
http://www.alliedtelesis.co /support/warranty/
Where to Find Web-based Guides
The insta ation and user guides for a A ied Te esis products are avai ab e in portab e document format
(PDF) on our web site at www.alliedtelesis.co . You can view the documents on ine or down oad them
onto a oca workstation or server.
Returning Products
Products for return or repair must first be assigned a return materia s authorization (RMA) number. A
product sent to A ied Te esis without an RMA number wi be returned to the sender at the sender’s
expense.
To obtain an RMA number, contact A ied Te esis Technica Support through our web site:
http://www.alliedtelesis.co /support/.
Sales or Corporate Infor ation
You can contact A ied Te esis for sa es or corporate information through our web site:
http://www.alliedtelesis.co /. To find the contact information for your country, se ect Contact Us ->
Wor dwide Contacts.
Manage ent Software Updates
New re eases of management software for our managed products are avai ab e from either of the fo owing
Internet sites:
•A ied Te esis web site: http://www.alliedtelesis.co /support/software/
•A ied Te esis FTP server: ftp://ftp.alliedtelesis.co /
If you prefer to down oad new software from the A ied Te esis FTP server from your workstation’s
command prompt, you wi need FTP c ient software and you must og in to the server. Enter “anonymous”
for the user name and your emai address for the password.
Tell Us What You Think
If you have any comments or suggestions on how we might improve this or other A ied Te esis documents,
p ease contact us at http://www.alliedtelesis.co .

AT-AR256E v3 4 Ports ADSL2/2+ Router User Manua 11
Chapter 1: Introduction
Congratu ations for the purchase of your router. This router provides advanced features that a ow you to
access the phone service and the Internet through a sing e wired connection.


 Please refer to the AT-AR256E Quick Setup Guide for information on how to install connect and initiall
setup the router.
Require ents
Your computer must meet the fo owing minimum requirements.
Software
Operating System:
Any operating system can be used
Browser:
Internet Exp orer 6.0/7.0
Netscape Navigator 3.02
Hardware
233MHz processor
CD-ROM Drive
Ethernet network adapter
Package Contents
Package contents inc ude:
•Router
•Te ephone cab e
•Ethernet cab e
•Power adaptor
•Documentation CD
•Quick Setup Guide
Device Design
Back Panel
The back pane provides ports to power up and connects the router to your network.
Figure 1: Back Panel
Label Used for…
DSL Connecting the te ephone cab e
ETHERNET 1-4
Connecting the Ethernet cab es
RESET Resetting the router. Press and ho d for 10 seconds to reset.

12 AT-AR256E v3 - 4 Ports ADSL2/2+ Router - User Manua
9V DC Connecting the power adaptor
ON/OFF Switching the router on/off
Front Panel
The LEDs on the front pane give you an idea about the power and connection status.
Figure 2: LEDs on front panel
Label Action Description
POWER Off No power is supp ied to the device
Steady ight Connected to a AC power supp y
ETHERNET
Off No Ethernet connection
Steady ight Connected to an Ethernet port
B inking ight
Transmitting/Receiving data
DSL B inking ight
Estab ishing DSL signa
Steady ight DSL signa is estab ished
INTERNET Off No Internet connection
Steady ight Connected to the Internet
B inking ight
Transmitting/Receiving data

AT-AR256E v3 4 Ports ADSL2/2+ Router User Manua 13
Chapter 2: About the Web User Interface
The Web User Interface is used to configure the router settings.
Accessing the Web User Interface
To access the Web User Interface:
1. Open a browser.
2. Enter the router’s IP address. The defau t IP address is 192.168.1.1.
3. When authentication is enab ed (defau t), the Log In page wi appear. On the Log In page, enter the
Userna e and Password. The defau t Username is anager and Password is friend.
4. C ick Log In.
Web User Interface Co ponents
Buttons, commands and menus make up the browser-based user interface.
Buttons
App y
C ick to imp ement the configuration changes. C icking App y wi not imp ement the changes when the
router is restarted.
Cance
C ick to revert to the ast saved configuration.

14 AT-AR256E v3 - 4 Ports ADSL2/2+ Router - User Manua
Menus
The Web User Interface inc udes the fo owing menus:
Figure 3: Menu Bar
Save Settings
It isn’t actua y a menu but a command. Se ecting it wi make the router save the current settings, such that
the router wi be retained same configuration next time it is started.
Restart Router
This menu item is a command too. Se ecting it wi make the router restart.
Basic Menu
The Basic menu provides the Home, Quick Start, LAN Configuration and Diagnostics inks.
Advanced Menu
The Advanced menu provides advanced configuration settings for existing connections. At east one WAN
connection must be configured before imp ementing advanced WAN configuration features. At east one
LAN group must be defined before imp ementing advanced LAN configuration features.
Security Menu
Security menu a ows you to configure security too s ike IP Fi ters.
Status Menu
The Status menu provides the status for different connections or interfaces.
He p Menu
The He p menu provides documentation about various router features.

AT-AR256E v3 4 Ports ADSL2/2+ Router User Manua 15
Chapter 3: Basic Menu
The Basic menu inc udes Home, Quick Start, LAN Configuration and Diagnostics.
Figure 4: Basic Ho e enu
Ho e
The Home page provides a one-page summary about the Connection Information, Router Information and
Loca Network settings.
Connection Information
The Connection Information page gives you an idea about the status of your Internet connection. This page
inc udes a Connect/Disconnect button. When c icked, the router makes an attempt to connect to the
Internet using the parameters saved in the router.
Router Information
This page provides a the necessary information to determine the firmware version and Ethernet MAC
Address.
Loca Network
The Loca Network page disp ays the current IP address of the router. It a so provides the Ethernet status.
Quick Start
P ease refer to Using Quick Start

16 AT-AR256E v3 - 4 Ports ADSL2/2+ Router - User Manua
LAN Configuration
LAN Configuration disp ays the current IP address assigned to the router. When you want to access the
router, use the stated IP Address.
Figure 5: LAN Configuration

AT-AR256E v3 4 Ports ADSL2/2+ Router User Manua 17
Diagnostics
Ping test is used for investigating the connection to another network device which is connected to your
current device.
Fu Modem Test is used for investigating whether the router is proper y connected to the WAN. This test
may take a few seconds to comp ete. To perform the test, se ect your connection from the ist then press
the Test button. Before running this test, make sure you have a va id DSL connection.
Figure 6: DSL Mode Test
To run Mode Test:
1. Se ect the Basic menu then c ick Diagnostics. This opens the Fu Mode Test page.
2. C ick Test. The test resu ts wi appear after running the Modem Test.

18 AT-AR256E v3 - 4 Ports ADSL2/2+ Router - User Manua
Chapter 4: Advanced Menu
This menu a ows advanced configuration options for your router.
Figure 7: Advanced enu
WAN
Wide Area Network refers to the configurations you perform to estab ish an Internet connection. There
are severa types of WAN connections that require different settings. Wide Area Network (WAN) is a so
referred to as the broadband connection. Connection settings differ for every service provider. Most of the
configuration you perform is for the WAN connection.
New Connection
Your router supports the creation of new connections. If you have mu tip e virtua connections, you may
need to uti ize the static routing capabi ities of the modem to pass data correct y.
WAN connections types inc ude:
•PPPoE Connection
•PPPoA Connection
•Static Connection
•DHCP Connection
•Bridge Connection
PPPoE Connection
PPP or Point-to-Point Protoco , is a method of estab ishing a network connection/session between network
hosts. PPPoE is a protoco for encapsu ating PPP frames in Ethernet frames and is described in RFC 2516.
PPPoE provides the abi ity to connect to a network of hosts over a simp e bridging access device to a remote
access concentrator. With this mode , each router uses its own PPP stack. Access contro , bi ing and type
of service contro can a be done on a per-user rather than per-site basis.

AT-AR256E v3 4 Ports ADSL2/2+ Router User Manua 19
Figure 8: New PPPoE Connection Setup
PPPoA Connection
PPPoA is a so known as RFC 2364. It is a method of encapsu ating PPP packets in ATM ce s that are carried
over the DSL connection. PPP or Point-to-Point Protoco , is a method of estab ishing a network
connection/session between network hosts. It usua y provides a mechanism for authenticating users.
Logica Link Contro (LLC) and Virtua Circuit (VC) are two different methods of encapsu ating the PPP
packet. Contact your service provider to determine which encapsu ation is being used on your Internet
connection.
Figure 9: New PPPoA Connection Setup

20 AT-AR256E v3 - 4 Ports ADSL2/2+ Router - User Manua
Static Connection
Static connection type is used whenever a known static IP address is assigned to the router. Additiona
addressing information such as the subnet mask and the defau t gateway must a so be specified. Up to three
Domain Name Server (DNS) addresses can be identified. These servers reso ve the name of the computer
to the IP address mapped to it and thus enab e you to access other web servers by typing the symbo ic name
(host name).
Figure 10: New Static Connection Setup
DHCP Connection
Dynamic Host Configuration Protoco a ows the router to automatica y obtain a IP address from the server.
This option is common y used when the IP is dynamica y assigned and is not known prior to assignment.
Figure 11: New DHCP Connection Setup