iv A-Link RoadRunner 24AP Router
4.2.5 SETUP Log Out....47 4.3 ADVANCED.....48 4.3.1 ADVANCED - UPnP....49 4.3.2 ADVANCED - SNTP....50 4.3.3 ADVANCED - SNMP....51 4.3.4 ADVANCED - IP QoS....53 4.3.5 ADVANCED - Port Forwarding....55 4.3.6 ADVANCED - IP Filters....58 4.3.7 ADVANCED - LAN Clients....60 4.3.8 ADVANCED - LAN Isolation...61 4.3.9 ADVANCED - Bridge Filters....62 4.3.10 ADVANCED Web Filters....64 4.3.11 ADVANCED - Multicast....65 4.3.12 ADVANCED Static Routing...66 4.3.13 ADVANCED Dynamic Routing...67 4.3.14 ADVANCED Access Control....68 4.3.15 ADVANCED - Log Out....69 4.4 WIRELESS.....70 4.4.1 WIRELESS - Setup....71 4.4.2 WIRELESS - Configuration....74 4.4.3 WIRELESS - Security....76 4.4.3.1 WIRELESS Security - None....77 4.4.3.2 WIRELESS Security - WEP....78 4.4.3.3 WIRELESS Security 802.1x....80 4.4.3.4 WIRELESS Security - WPA....81 4.4.4 WIRELESS - Management...82 4.4.4.1 WIRELESS Management Access List....83 4.4.4.2 WIRELESS Management Associated Stations...84 4.4.4.3 WIRELESS Management Multiple SSID..85 4.4.5 WIRELESS - Log Out....86 4.5 TOOLS.....87 4.5.1 TOOLS - System Commands....88 4.5.2 TOOLS - Remote Log....89 4.5.3 TOOLS - User Management....90 4.5.4 TOOLS - Update Gateway...91 4.5.5 TOOLS - Ping Test....93 4.5.6 TOOLS - Modem Test....94 4.5.7 TOOLS - Log Out....95 4.6 STATUS.....96 4.6.1 STATUS - Network Statistics....97 4.6.1.1 STATUS - Network Statistics - Ethernet...98 4.6.1.2 STATUS - Network Statistics - DSL...99
A-Link RoadRunner 24AP Router v
4.6.1.3 STATUS - Network Statistics - Wireless....100 4.6.2 STATUS Connection Status....101 4.6.3 STATUS - DHCP Clients....102 4.6.4 STATUS - Modem Status...103 4.6.5 STATUS - Product Information....104 4.6.6 STATUS - System Log....105 4.6.7 STATUS - Log Out.....106 4.7 HELP.....107 APPENDIX A: ROUTER TERMS...108 APPENDIX B: FREQUENTLY ASKED QUESTIONS...110 APPENDIX C: TROUBLESHOOTING GUIDE...113 APPENDIX D: UPNP SETTING ON WINDOWS XP..117 APPENDIX E: GLOSSARY...121

Chapter 1 Introduction

Congratulations on your purchase of this outstanding A-Link RoadRunner 24AP (RR24AP). This device is an IEEE 802.11g Wireless and 4 Port Switch built-in ADSL2/2+ Router that allows ADSL/ADSL2/ADSL2+ connectivity while providing Wireless LAN capabilities for residential, industries and SOHO environments. Wireless-G or the so-called 11g is the upcoming 54Mbps wireless networking standard thats almost 5 times faster than the widely deployed Wireless-B or the so-called 11b products found in homes, businesses, and public wireless hotspots around the world. ADSL2/2+ is a transmission technology used to carry user data over a single twisted-pair line between the Central Office and the Customer Premises. The downstream data rates can go up to 24 Mbps and the upstream data rates can go up to 1Mbps with length reach up to 22Kft for ADSL2/2+ connection and 54Mbps transfer data rate for the 11g connection. This device allows ADSL2/2+ connectivity while providing Wireless LAN capabilities for home or office users. This asymmetric nature lends itself to applications such as Internet access and video delivery. With minimum setup, you can install and use the router within minutes.

1.5 System Requirement

Check and confirm that your system fills the following minimum requirements:
Ethernet LAN card or IEEE 802.11b or IEEE 802.11g Wireless adaptor installed with TCP/IP protocol. Computer with Internet Browser.

1.6 Packet Contents

The A-Link RoadRunner 24AP Router package contains the following items :
One A-Link RoadRunner 24AP Router One Power Adapter One RJ-11 ADSL Cable One CAT-5 Ethernet Cable One detachable SMA Antenna Quick Setup Guide
If any of the above items are damaged or missing, please contact your dealer immediately.
Chapter 2 Knowing The A-Link RoadRunner 24AP Router

2.1 Front Panel:

The A-Link RoadRunner 24AP Routers LEDs indicators display information about the devices status.
PWR WL ACT 1 LINK/ACT 2 LINK/ACT 3 LINK/ACT 4 LINK/ACT ADSL PPP
Lights up when A-Link RoadRunner 24AP Router is powered on. Lights up when Wireless system is ready. Blinking when A-Link RoadRunner 24AP Router is sending/receiving data. Blinking when A-Link RoadRunner 24AP Router is Sending/Receiving data. Blinking when A-Link RoadRunner 24AP Router is Sending/Receiving data. Blinking when A-Link RoadRunner 24AP Router is Sending/Receiving data. Blinking when A-Link RoadRunner 24AP Router is Sending/Receiving data. Lights up when a successful ADSL2/2+ connection is established. Blinking when A-Link RoadRunner 24AP Router is sending/receiving data. Lights up when a PPP connection is established.

2.2 Back Panel:

The back panel of the A-Link RoadRunner 24AP Router contains ADSL, Ethernet Switches, Reset, Power Adapter connection, Power ON/OFF Switch and SMA connector.
ADSL Ports 1~4 RESET POWER SMA
Port for connecting to the ADSL2/2+ Service Provider. Four 10/100Mbps Ethernet Ports for connecting to the network devices Restore the A-Link RoadRunner 24AP Router to factory default setting. 12V DC/1A Power adapter connector. Detachable SMA Dipole Antenna.
All the Ethernet port of the 4 Ports 11g Wireless ADSL2/2+ Router supports auto-crossover capability.
RESET Button: Reboot & Restore the 4 Ports 11g Wireless ADSL2/2+ Router to factory defaults.
Resetting Factory Defaults: The reboot and restore to factory defaults feature will set the device to its factory default configuration by resetting the A-Link RoadRunner 24AP Router. To Reset the A-Link RoadRunner 24AP Router: Ensure that the device is powered on. Press the Reset button for 5~10 seconds and release. The LED indicators will turns OFF and ON again indicates that the reset is in progress. Do not power off the device during the reset process. Reset is completed when the LED indicator return to steady green. The default settings are now restored.

Log Out: Click to Log Out the Administration configuration page. Refresh: Click to Refresh current page.

4.2 SETUP

The SETUP configuration page allows you to create new connections, edit existing connections, and configure other basic settings in WAN and LAN mode. The SETUP Menu is divided into two sections: LAN Setup and WAN Setup. WAN Setup will be dealt with first.

4.2.1 SETUP - WAN Setup

WAN Setup: The WAN configuration page allows you to set the configuration for the WAN/ADSL ports. ADSL connections can be configured in a variety of ways depending on the ISP/WAN configuration, and the requirements of your home or office LAN. This 4 Port 11g ADSL2/2+ Router supports the following ADSL connection types: PPPoE (RFC2516) PPPoA (RFC2364) DHCP Static Bridged (RFC1483) CLIP (RFC1577) Configuring the 4 Port 11g ADSL2/2+ Router to match these connection types may require entry of some or all of the following values: ISP Account Username and Password VPI/VCI Setting Encapsulation Type/Multiplexing ( Either LLC or VC, check with your ISP for details ) ADSL Handshaking Mode ( Default setting is MMODE ) Network Settings for Bridged Mode operation: For Bridged Mode connections (RFC1483), the ISP will need to provide the following information: DSL Fixed Internet IP address Subnet Mask Default Gateway IP Address Primary DNS IP address. The next sections will describe in detail how to set up each of these connection types and save them as Connection Profiles.
4.2.1.1 SETUP - WAN Setup New Connection
Click New Connection to setup a new connection profile. Different connection profiles may be required if you connect to more than one ADSL service provider, or if you vary the connection type you use, or if this A-Link RoadRunner 24AP Router is used in different locations or countries. This A-Link RoadRunner 24AP Router can be configured to maintain up to 8 Connection Profiles. In defaults router have all 8 Connection Profiles configured. These profiles are only for bridged connection using DHCP server when operator has some of these VPI/VCI parameters in use; 0/100, 0/33, 0/32, 0/50, 14/24, 8/35, 5/25 or 0/40. If you want to use other connection method, please follow instructions below to remove all bridged Profiles and adding new Connection Profile for your need. To remove all 8 Connection Profiles you should do as follows:
The WAN Setup configuration page enable the user to create, save and select connection profiles as required. (In many cases, only one connection profile will be required and only one connection profile will be used at one time).

4.2.1.1.2 New Connection - PPPoA Connection Setup
PPPoA: When PPPoA mode is selected, the following screen will pop-up. Point-to-Point Protocol ( PPP ) is a method of establishing a network connection between network hosts. PPPoA, also known as RFC 2346, adapts PPP to work over ATM cells for ADSL connections.
Name: Enter the PPPoA connection name. The name must be unique and must not contain spaces and must not begin with a number. Type: Connection Type : PPPoA. Options: Click to enable NAT and/or Firewall functionality. Default is Enable. PPP Settings: Username: Your ISP Account ID. Check your ISP for details. Password: Your ISP Account Password. Check your ISP for details. Idle Timeout: The Idle Timeout allows you to set the specific period of time, in seconds, to disconnect from the ISP if the link has no activity detected. Keep Alive: When the On-Demand option is not enabled, this value specifies the time to wait without being connected to your provider before terminating the connection. To ensure that the link is always active, enter 0 in this field. Authentication: The different types of available authentications are: Auto: When auto is selected, PAP mode will run by default. However, if PAP fails, then will run as the secondary protocol. This is the default setting. PAP: Password Authentication Procedure. Authentication is done through username and password. CHAP: Challenge-Handshake Authentication Protocol. Typically more secure than PAP, CHAP uses username and password in combination with a randomly generated challenge string which has to be authenticated using a one-way hashing function. MTU: Maximum Transmission Unit. The largest size packet that can be sent by the modem. If the network stack of any packet is larger than the MTU value, then the packet will be fragmented before the transmission. This can be set from a minimum 128 to maximum 1500. On Demand: If enable On Demand mode, the connection will be dropped if no activity is detected after the specified Idle Timeout value. A-Link RoadRunner 24AP Router 27
Default Gateway: Check box to make this the default connection. Debug: Click to enable the Debug function. The complete debugging information will show and listed in the System Log file. PPP Unnumbered: Click to enable PPP Unnumbered function then select LAN Group from the LAN dropdown manual. PVC Settings: VPI: Virtual Path Identifier is a virtual path used for cell routing that is identified by an eight bit field in the ATM cell header. The VPI field specifies this eight bit identifier for routing. VCI: A Virtual Channel Identifier is a virtual channel that is identified by a unique numerical tag that is defined by a 16-bit field in the ATM cell header. The purpose of the virtual channel is to identify where the cell should travel. The VCI field specifies this 16 bit numerical tag that determines the destination. QoS: Select the Quality of Service (QoS) type. If in doubt leave as default. PCR: Peak Cell Rate. This is an ATM (Asynchronous Transfer Mode) term to describe the rate cells per second that the source device may never exceed. Available only when VBR QoS is chosen. SCR: Security Cell Rate. This is an ATM (Asynchronous Transfer Mode) term to describe the security cell transmitted per second. MBS: Maximum Burst Size. A term used in ATM (Asynchronous Transfer Mode) to specify the maximum number of cells which can be transmitted at the contracted PCR (Peak Cell Rate). Available only when VBR QoS is chosen. CDVT: Cell Delay Variation Time. The Cell Delay Variation is a term used in ATM (Asynchronous Transfer Mode) to describe the time difference that is acceptable between cells being presented at the receiving host. Available only when VBR QoS is chosen. Auto PVC: Click to enable Auto PVC features. Auto PVC allows detection of virtual channels via the built-in mechanism for communicating ATM Layer information from DSLAM to the A-Link RoadRunner 24AP Router. Connect: Click Connect to attempt an ADSL connection under this connection profile. Disconnect: Click Disconnect to drop the ADSL connection under this connection profile. Apply: Click Apply to complete the connection profiles setting. Delete: Click Delete to delete a connection. Cancel: Click Cancel to ignore all the changes. To complete and save the connection profile, go to TOOLS Save All after clicking the Apply button. System Commands and click

4.2.1.1.6 New Connection - CLIP Connection Setup
CLIP: When CLIP mode is selected, the following screen wills pop-up. The Classical IP over ATM (CLIP) support provides the ability to transmit IP packets over an ATM network, CLIP support will encapsulate IP in an AAL5 packet data unit (PDU) frame using RFC1577and utilizes an ATM-aware version of the ARP protocol.
Name: Enter the CLIP connection name. The name must be unique and must not contain spaces and must not begin with a number. Type: Connection Type: CLIP. CLIP Settings: IP Address: Enter the IP Address provided by your ISP. Mask: Enter the Subnet mask specified by your ISP. ARP Server: Leave as Default ( 0.0.0.0 ) unless advised by ISP. Default Gateway: Enter the Default Gateway as specified by the ISP. PVC Settings: VPI: Virtual Path Identifier is a virtual path used for cell routing that is identified by an eight bit field in the ATM cell header. The VPI field specifies this eight bit identifier for routing. VCI: A Virtual Channel Identifier is a virtual channel that is identified by a unique numerical tag that is defined by a 16-bit field in the ATM cell header. The purpose of the virtual channel is to identify where the cell should travel. The VCI field specifies this 16 bit numerical tag that determines the destination. QoS: Select the Quality of Service (QoS) type. If in doubt leave as default. PCR: Peak Cell Rate. This is an ATM (Asynchronous Transfer Mode) term to describe the rate cells per second that the source device may never exceed. Available only when VBR QoS is chosen. SCR: Security Cell Rate. This is an ATM (Asynchronous Transfer Mode) term to describe the security cell transmitted per second. MBS: Maximum Burst Size. A term used in ATM (Asynchronous Transfer Mode) to specify the maximum number of cells which can be transmitted at the contracted PCR (Peak Cell Rate). Available only when VBR QoS is chosen. A-Link RoadRunner 24AP Router 35
CDVT: Cell Delay Variation Time. The Cell Delay Variation is a term used in ATM (Asynchronous Transfer Mode) to describe the time difference that is acceptable between cells being presented at the receiving host. Available only when VBR QoS is chosen. Auto PVC: Click to enable Auto PVC features. Auto PVC allows detection of virtual channels via the built-in mechanism for communicating ATM Layer information from DSLAM to the A-Link RoadRunner 24AP Router. Apply: Click Apply to complete the connection profiles setting. Delete: Click Delete to delete a connection. Cancel: Click Cancel to ignore all the changes. To complete and save the connection profile, go to TOOLS Save All after clicking the Apply button. System Commands and click

The IP Filters page allows you to specify normal Port Forwards, Block traffic to specific LAN Clients or specify Custom IP Filters that will control the flow of data across the router.
Select LAN Group: Select LAN Group from the drop down manual. LAN IP: Enter the routers LAN IP Address. Block All Traffic: Click to enable blocking all traffic to specific LAN Clients. Block Outgoing Ping: Click to enable blocking all outgoing ping from LAN clients. NEW IP: Click NEW IP if you wish to manually add a LAN client so that you can apply rules to it.
Custom IP Filters: Custom IP Filters allow you to specify individual rules that will deny traffic by defining the following: Source IP address or Source IP Subnet Mask. Destination IP address or Destination IP Subnet Mask. Port or Port range. Protocol. Customer IP filter are different from Port forwards, or Block All traffic because they allow greater scopes of IP addresses to be included in the block.
4.3.7 ADVANCED - LAN Clients
LAN Client names are a way of applying specific Port-forwarding, Access Control and QoS rules to individual computers on the LAN. If DHCP is used, all DHCP clients are automatically assigned and are designated as a LAN client. Enter the IP Address, Hostname and MAC Address as shown. Click Apply to activate your setting.
4.3.8 ADVANCED - LAN Isolation
LAN Isolation provide blocking traffic from one LAN to another LAN. Place a check at the selected rules and click Apply to activate your setting.
4.3.9 ADVANCED - Bridge Filters
Bridge Filtering allows packets to be forwarded or blocked, depending on the MAC address. The Bridge Filtering configuration page allows you to set the configuration of MAC filtering. Bridge Filter ( Or sometimes known as MAC Filter ) enable rules to be defined which allow or deny data to pass through the Router based on the source and destination MAC address and data type of each data frame. Most of the Bridge Filter Rule is to specify which computers on a network are allowed Internet access; or to determine which particular computers are allowed to access services provided by the Router.
Enable Bridge Filters: Place a tick at the check box to enable the Bridge Filters functionality. If the check box is selected, Bridge Filtering is enabled according to the list of Bridge Filter Rules that has been created. If the box is de-selected, Bridge Filtering will not be enabled, even if Bridge Filter Rules have been created. Enable Bridge Filter Management Interface: Place a check to enable the Bridge Filter Management Interface. There are three interface provided for the setting, Ethernet, USB and Wireless Interface. Edit: To edit an existing Bridge Filter Rule, click the Edit radio button adjacent to the Bridge Filter Rule name. Src MAC: This is the Source MAC to block or from which to forward. The Source MAC must consist of 12 hexadecimal characters. Src Port: Select the Source Port from the drop down manual. Dest MAC: This is the Destination MAC to block or to forward to. The Destination MAC must consist of 12 hexadecimal characters. Dest Port: Select the Destination Port from the drop down manual. Protocol: Select the Protocol type for the rule from the drop down manual. Place a check to make chances to the existing Bridge Filter Rule. Mode: Select t Allow or Deny for the rule. 62 A-Link RoadRunner 24AP Router

Delete: Place a check adjacent to the Bridge Filter Rule and click Apply to Delete the Bridge Filter Rule. Add: Click Add button to add the rule to the list of rules. Apply: Click Apply to complete the setting. Cancel: Click Cancel to ignore all the changes. To complete and save the setting, go to TOOLS clicking the Apply button. Create Bridge Filter Rules: Enter the Source MAC ( Src MAC ) and Destination MAC ( Dest MAC ) details. Select the Source Port and Destination Port from the drop down manual. Select the protocol type from the drop down manual. Protocol provides the choice of protocol type for the rule. Mode provides the choice of Allow or Deny for the rule. When all selections are made, click on Add to add the rule to the list of rules. A maximum of 20 MAC Filter Rules can be defined and saved. Edit or Delete MAC Filter Rules: To edit an existing MAC Filter Rule, click the radio button adjacent to the Filter Rule name ( Edit ). The Rule will then appear in the top of the MAC Filter control screen where it can be edited. When editing is complete, click Add to return the Rule to the list of existing rules. To delete MAC Filter Rules: click on the Delete tick box. Select All will select every rule. When the desired selections are made, effect deletion by clicking on Apply. System Commands and click Save All after
4.3.10 ADVANCED Web Filters
Web Filter is a tool that has the ability to filter Internet content. Using an easy, category-based listing, you can control exactly what website content can or can not be accessed. Click the radio button to Enable or Disable the filter rules to ensure an accurate representation of the world of information reachable on the Internet.
4.3.11 ADVANCED - Multicast
IGMP ( Internet Group Management Protocol ) Multicast enables communication between a single sender and multiple receivers on a network. It is used when data needs to be sent from one to many devices.
Enable IGMP Multicast: Click to enable IGMP Multicast and then select a connection listed. Apply: Click Apply to complete the setting. Cancel: Click Cancel to ignore all the changes. To complete and save the setting, go to TOOLS clicking the Apply button. System Commands and click Save All after
4.3.12 ADVANCED Static Routing
If the Router is required to serve more than one network, you will need to set up Static Route between the networks. Static routing can be used to allow users from one IP domain to access the Internet through the Router in another domain. A Static Route provides the defined pathway that network information must travel to reach the specific host or network which is providing Internet access.

User Isolation: If enabled, Wireless Stations will not be able to communicate with each other or with stations on the wired network. This feature normally should be disabled. Apply: Click Apply to complete the setting. Cancel: Click Cancel to ignore all the changes. To complete and save the setting, go to TOOLS clicking the Apply button. System Commands and click Save All after
How to Set Up and Test Basic Wireless Connectivity
Follow the instructions below to set up and test basic wireless connectivity. Once you have established basic wireless connectivity, you can enable security settings appropriate to your needs. 1. Log in to the A-Link RoadRunner 24AP Router default IP address http://10.0.0.2 with its default username: admin and default password: password, or using whatever IP Address and Username and Password you have set up. 2. 3. 4. Click the WIRELESS Setup link in the main menu of the A-Link RoadRunner 24AP Router. Click to Enable AP feature. Choose a suitable descriptive name for the wireless network name (SSID). In the SSID box, enter a value of up to 32 alphanumeric characters. The default SSID is default. Note: The SSID of any wireless access adapters must match the SSID you configure in the A-Link RoadRunner 24AP Router. If they do not match, you will not get a wireless connection to the A-Link RoadRunner 24AP Router. 5. 6. Uncheck the Hidden SSID. Set the Channel B/G. The default channel is 6. This field determines which operating frequency will be used. It should not be necessary to change the wireless channel unless you notice interference problems with another nearby wireless router or access point. 7. 8. 9. 10. 11. Set the 802.11 Mode as its default, Mixed. Uncheck the User Isolation feature. Click Apply to complete the setting. To complete and save the setting, go to TOOLS clicking the Apply button. Configure and test your computers for wireless connectivity. Program the wireless adapter of your computers to have the same SSID and channel that you configured in the A-Link RoadRunner 24AP Router. Check whether they have a wireless link and are able to obtain an IP address by DHCP from the A-Link RoadRunner 24AP Router. Once your computers have basic wireless connectivity to the A-Link RoadRunner 24AP Router, then you can configure the advanced wireless security functions of the firewall. System Commands and click Save All after
4.4.2 WIRELESS - Configuration
The Configuration page describes how to configure the wireless features of your A-Link RoadRunner 24AP Router.

4.4.5 WIRELESS - Log Out

4.5 TOOLS
TOOLS: The TOOLS page allows you to save the configuration, restart the device, update the firmware/image code, setup user and remote log information and run ping/test of the A-Link RoadRunner 24AP Router.
System Commands: Save the current configuration, restart the A-Link RoadRunner 24AP Router and restore to factory defaults setting. Remote Log: Setup Remote Log Information. User Management: Configure user name and password. Update Gateway: Upgrade the A-Link RoadRunner 24AP Router firmware. Ping Test: Run a ping test. Modem Test: Check whether the modem with a specific connection is properly connected to the network.
4.5.1 TOOLS - System Commands
The System Commands page allows you to carry out basic system actions.
Save All: Press this button in order to permanently save the current configuration of the A-Link RoadRunner 24AP Router. Restart: Use this button to restart the A-Link RoadRunner 24AP Router system. NOTE: You will be redirected to the A-Link RoadRunner 24AP Router Homepage after the unit has successfully rebooted. Restart Access Point: Use this button to restart the Wireless Access Point. It is important to Restart the Access Point any time when changing the Wireless Setting. Restore Defaults: Use this button to restore factory default configurations. NOTE: You will be redirected to the A-Link RoadRunner 24AP Router Homepage after the unit has successfully been restored to factory default configurations.

4.5.2 TOOLS - Remote Log

Remote Log: Using the Remote Log page, you can allow a user or users on the Internet to configure, upgrade and check the status of your A-Link RoadRunner 24AP Router.
Log Level: Select the Log Level from the drop down manual. The A-Link RoadRunner 24AP Router provides the following Log Level : Panic, Alert, Critical, Error, Warning, Notice, Info and Debug. Add an IP Address: Manually enter the logging destination IP Address then click Add button to add your entry. Delete: Delete the logging destination IP Address from the drop down list. Apply: Click Apply to complete the setting. Cancel: Click Cancel to ignore all the changes. To complete and save the setting, go to TOOLS clicking the Apply button. System Commands and click Save All after
4.5.3 TOOLS - User Management
User Management: The User Management page enables you to change your User Name and/or Password. It is recommended that you change the User Name and password from the default Admin to ensure the security of the A-Link RoadRunner 24AP Router. For security reasons, the router has its own user name and password. Also, after a period of inactivity for a set length of time, the administrator login will automatically disconnect. When prompted, enter the router User Name: admin and the router Password: password to log in. NOTE: If you forget your user name and password, access to the A-Link RoadRunner 24AP Router can only be gained by resetting the unit to factory defaults. Pressing the Reset button for 10 seconds, the LED indicators will turns OFF and ON again indicates that the Reset process is successfully done.

What is a DMZ?

DMZ really stands for Demilitarized Zone. It is a way of separating out part of your local network so that is more open to the Internet. Suppose that you want to run a web-server, or a game server. Normal servers like these are blocked from working by the NAT functionality. The solution is to "isolate" the single local computer into a DMZ. This makes the single computer look like it is directly on the Internet, and others can access this machine. Your machine isn't really directly connected to the Internet, and it really has an internal local network address. When you provide the servers network address to others, you must provide the address of the router. The router "fakes" the connection to your machine. You should use the DMZ when you want to run a server that others will access from the Internet. Internal programs and servers (like print servers, etc) should NOT be connected to the DMZ

What is a Gateway?

The Internet is so large that a single network cannot handle all of the traffic and still deliver a reasonable level of service. To overcome this limitation, the network is broken down into smaller segments or subnets that can deliver good performance for the stations attached to that segment. This segmentation solves the problem of supporting a large number of stations, but introduces the problem of getting traffic from one subnet to another. To accomplish this, devices called routers or gateways are placed between segments. If a machine wishes to contact another device on the same segment, it transmits to that station directly using a simple discovery technique. If the target station does not exist on the same segment as the source station, then the source actually has no idea how to get to the target. One of the configuration parameters transmitted to each network device is its default gateway. This address is configured by the network administrators and it informs each personal computer or other network device where to send data if the target station does not reside on the same subnet as the source. If your machine can reach all stations on the same subnet (usually a building or a sector within a building), but cannot communicate outside of this area, it is usually because of an incorrectly configured default gateway.
Appendix B: Frequently Asked Questions
The Frequently Asked Questions addresses common questions regarding A-Link RoadRunner 24AP Router settings. Some of these questions are also found throughout the guide, in the sections to which they reference. 1. How do I determine if a link between the Ethernet card (NIC) and the A-Link RoadRunner 24AP Router have been established? (See network adapter settings in chapter 3) Ans. A ping test would determine if a connection is established between your A-Link RoadRunner 24AP Router and computer. Using, the ping command, ping the IP address of the A-Link RoadRunner 24AP Router, in this case, 10.0.0.2 (default). For more information on Ping Testing, refer to Appendix C: Troubleshooting Guide. Alternatively, if the Ethernet LINK LED is solidly on, then the Ethernet link is established. 2. How do I determine if a link between the A-Link RoadRunner 24AP Router and the Internet has been established? Ans. Similar to the previous question, a ping test would determine whether or not a connection is established. However, this time use a URL instead of and IP Address, such as www.a-link.com. Alternatively, if the ADSL LED is solidly on, then the ADSL link is established. 3. How can I find/verify my A-Link RoadRunner 24AP Router and/or computer Ethernet MAC Address? Ans. Win98/ME = winipcfg, Win2000/XP = ipconfig /all, RR24AP = HOME page. 4. What is ad-hoc mode? To communicate directly with each other, peer-to-peer without the use of an access point. 5. What is infrastructure mode? communicate with a network through a wireless access point. 6. What is roaming? freely throughout an area greater than that covered by a single access point. Before using the roaming function, the computer must make sure that it is the same channel number with the access point of dedicated coverage area.

I need to upgrade the Firmware. the latest Firmware at www.a-link.com. Before proceed the upgrading process, check the following details: 1. Download the latest Firmware and save at your pointed location. 2. Read the firmware release note carefully before proceed the upgrading process. 3. Refer to TOOLS Update Gateway section for the upgrading process.
Ans. In order to upgrade the Firmware with the latest features, go to the A-Link website and download
Testing LAN path to your A-Link RoadRunner 24AP Router. properly connected, you can Ping the A-Link RoadRunner 24AP Router with the following procedures: 1. From the Windows toolbar, click Start and select Run. 2. In the open field, type Ping 10.0.0.2 and click OK 3. If the path is working, you should see the message in the following format: Reply from 10.0.0.2 bytes = 32 time < 10ms TTL = 60 4. If the path is not working, you should see the following message: Request timed out If the path is not functioning correctly: 1. Make sure the LAN port LED indicator is on. 2. Check whether you are using the correct LAN cable. 3. Check your Ethernet Adaptor installation and configurations. 4. Verify that the IP address for your A-Link RoadRunner 24AP Router and your workstation are correct and that the addresses are on the same subnet.
Ans. To verify whether the LAN path from your PC to your A-Link RoadRunner 24AP Router is
Failed to connect with the A-Link RoadRunner 24AP Router via Wireless LAN card. illuminated. 1. Check whether your Wireless LAN setting (e.g. SSID, Channel Number) is the same as your A-Link RoadRunner 24AP Router. 2. Check whether youd used the same WEP Key Encryption for both your Wireless LAN and your A-Link RoadRunner 24AP Router.
Ans. Ensure that the WL ACT LED indicator of the A-Link RoadRunner 24AP Router is correctly
Appendix D: UPnP Setting on Windows XP

D.1 Adding UPnP:

If you are running Microsoft Windows XP, it is recommended to add the UPnP component to your system. Proceed as follows: 1. Click Start Settings then Control Panel.
The Control Panel window appears. Click Add or Remove Programs.
The Add or Remove Programs window appears. Click Add/Remove Windows Components.
The Windows Components Wizard appears. Select Networking Services in the Components list and click Details.
The Networking Services window appears. Select Universal Plug and Play and click OK.
Click Next to start the installation and follow the instructions in the Windows Components Wizard.

Note :

System may ask for original Windows XP CD-ROM. Insert the CD-ROM and direct Windows to the proper location of the CD-ROM. Restart your Windows system to activate your setting might be necessary. Click OK to restart your Windows system.
A Completing the Windows Components Wizard will appears indicating the installation was successful. Click Finish to quit.

SNAP: SubNetwork Attachment Point. SNMP: Simple Network Management Protocol: Used to govern network management and monitor devices on the network. SNMP is formally described in RFC 1157. SNR: Signal-to-Noise Ratio: Measured in decibels, SNR is a calculated ratio of signal strength to background noise. The higher this ratio, the better the signal quality. Subnet Mask: Short for SubNetwork Mask, subnet mask is a technique used by the IP protocol to filter messages into a particular network segment, called a subnet. The subnet mask consists of a binary pattern that is stored in the client computer, server, or router. This pattern is compared with the incoming IP address to determine whether to accept or reject the packet. TCP: Transfer Control Protocol: Works together with Internet Protocol for sending data between computers over the Internet. TCP keeps track of the packets, making sure that they are routed efficiently. TFTP: Trivial File Transfer Protocol: A simple version of FTP protocol that has no password authentication or directory structure capability. Trellis Code: An advanced method of FEC (Forward Error Correction). When enabled, it makes for better error checking at the cost of slower packet transmission. Setting Trellis Code to Disabled will cause increased packet transmission with decreased error correction. TTL: Time To Live: A value in an IP packet that indicates whether or not the packet has been propagating through the network too long and should be discarded. UBR: Unspecified Bit Rate: A transfer mode that is usually used in file transfers, email, etc. UBR can vary depending on the data type. USB: Universal Serial Bus: A standard interface between a computer and a peripheral (printer, external drives, digital cameras, scanners, network interface devices, modems, etc.) that allows a transfer rate of 12Mbps. UDP: User Datagram Protocol: A protocol that is used instead of TCP when reliable delivery is not required. Unlike TCP, UDP does not require an acknowledgement (handshake) from the receiving end. UDP sends packets in one-way transmissions. VBR-nrt: Variable Bit Rate non real time: With VBR-nrt, cell transfer is variable upon certain criteria. VC: Virtual Circuit: A virtual circuit is a circuit in a network that appears to be a physically discrete path, but is actually a managed collection of circuit resources that allocates specific circuits as needed to satisfy traffic requirements.

RoadRunner 24AP

Securing wireless connection

Ver.1.0

In this manual have been described how you can secure RoadRunner 24AP router wireless network connection. Follow these steps carefully. Wireless network is recommended to be secured for security reasons. In case of some problem, you can contact A-Link technical support, by telephony +358-60041020 (1,67/min+normal telephony costs) or by E-mail techsupport@a-link.com.
A.) Wireless network settings for RoadRunner 24AP router.
1. Open Internet browser and type address http://10.0.0.2. Username is admin and password is password.
2. Go to WIRELESS menu and choose Security
3. You have two choices, WEP encryption (steps a, b and c) or WPA encryption (step d). Choose only one step (a, b, c or d) to encrypt your connection.
Note! Check if your computer WLAN card has WPA encryption support. If WPA encryption is not supported, you can only use WEP encryption in your connection. A-Link WL54H, WL54PC or WL54USB cards supports WPA encryption.
64-bit WEP encryption. 1. Choose WEP and put mark on Enable WEP Wireless Security 2. To Cipher choose 64-bit. 3. Type your own Encryption key. Key length can be 10 letters long. Key can be mixed numbers 0-9 and letters a-f. Example. 55.
Note! Encryption keys must be entered by pairs of two numbers/letters.
128-bit WEP encryption. 1. Choose WEP and put mark on Enable WEP Wireless Security 2. To Cipher choose 128-bit. 3. Type your own Encryption key. Key length can be 26 letters long. Key can be mixed numbers 0-9 and letters a-f. Example. aa bb cc.
256-bit WEP encryption. 1. Choose WEP and put mark on Enable WEP Wireless Security 2. To Cipher choose 256-bit. 3. Type your own Encryption key. Key length can be 58 letters long. Key can be mixed numbers 0-9 and letters a-f. Example. aa bb cc dd ee ff aa bb cc.
WPA encryption. 1. Choose WPA and put mark on PSK String 2. Type your own password to String which length is 8 letters minimum and 63 letters maximum. Example. roadrunner.
4. When you have configured your encryption choice, press Apply in bottom of screen, when all wireless settings will be saved in router temporary memory.
Note! All modified settings do not be affected or saved to router permanent memory when pressing Apply to wireless settings.
5. Go to TOOLS menu and choose System Commands. Press Save All first and when settings have been saved to router, press Restart to restart router, when all settings will be affected.
Note! You can restart only the wireless access point with Restart Access Point button. This way only, wireless access point restarts and other router operations will continue without any breaks.
Note! In router WIRELESS and Setup menu you can change wireless network name (SSID). Also, you can hide SSID with Hidden SSID feature, but before that you should ensure that your WLAN card can connect to access point with hidden SSID. Example, Nokia 9500 Communicator, and some other older WLAN cards do not find access point if it is hidden.
B.) Wireless network settings for workstation (Windows XP sp2).
In this example we define wireless network connection to secured access point with Windows XP (SP2) operating system. Used WLAN software is provided by Windows XP Service Pack 2. If you have some other operating system or you are using your WLAN card own software, you can contact A-Link technical support in case of some problem, by telephony +358-600-41020 (1,67/min+normal telephony costs) or by E-mail techsupport@a-link.com. 1. In Start menu, open Control Panel. 5. Windows founds secured connection named default. Press Connect.

2. Open Network and Internet connections.
6. Windows asks network password. Type same encryption key or password, which was configured to router two times. Press Connect.
3. Open Network connections. 7. Now wireless connection is secured to router.
4. Double-click left button on your mouse over Wireless network connection icon.
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