® A Division of Cisco Systems, Inc. 2,4 GHz Wireless-G 802.11g ADSL Gateway WIRELESS Model No.
Wireless-G ADSL Gateway Copyright and Trademarks Specifications are subject to change without notice. Linksys is a registered trademark or trademark of Cisco Systems, Inc. and/or its affiliates in the U.S. and certain other countries. Copyright © 2004 Cisco Systems, Inc. All rights reserved. Other brands and product names are trademarks or registered trademarks of their respective holders.
Wireless-G ADSL Gateway Table of Contents Chapter 1: Introduction 1 Welcome What’s in this Guide? 1 2 Chapter 2: Planning Your Network The Gateway’s Functions IP Addresses Why do I need a VPN? What is a VPN? Chapter 3: Getting to Know the Wireless-G ADSL Gateway The Back Panel The Front Panel Chapter 4: Connecting the Wireless-G Broadband Gateway 4 4 4 5 6 8 8 9 10 Overview Wired Connection to a Computer Wireless Connection to a Computer 10 11 11 Chapter 5: Configuring the Gateway 13 Overview
Wireless-G ADSL Gateway Environment How to Establish a Secure IPSec Tunnel 62 63 Appendix D: Finding the MAC Address and IP Address for Your Ethernet Adapter 73 Windows 98 or Me Instructions Windows 2000 or XP Instructions Appendix E: Upgrading Firmware Appendix F: Glossary Appendix G: Specifications Appendix H: Regulatory Information Appendix I: Warranty Information Appendix J: Contact Information 73 74 75 76 82 84 87 88
Wireless-G ADSL Gateway List of Figures Figure 2-1: Network Figure 2-2: Computer-to-VPN Gateway Figure 2-3: VPN Gateway-to-VPN Gateway Figure 3-1: Back Panel Figure 3-2: Front Panel Figure 4-1: Ethernet Connection Figure 4-2: ADSL Connection Figure 4-3: Power Connection Figure 5-1: Password Screen Figure 5-2: Basic Setup Tab Figure 5-3: Dynamic IP Figure 5-4: Static IP Figure 5-5: RFC 1483 Routed Figure 5-6: RFC 2516 PPPoE Figure 5-7: RFC 2364 PPPoA Figure 5-8: Bridged Mode Only Figure 5-9: Optional Settin
Wireless-G ADSL Gateway Figure 5-23: VPN Settings Summary Figure 5-24: Manual Key Management Figure 5-25: System Log Figure 5-26: Advanced VPN Tunnel Setup Figure 5-27: Internet Access Figure 5-28: Internet Policy Summary Figure 5-29: List of PCs Figure 5-30: Port Services Figure 5-31: Single Port Forwarding Figure 5-32: Port Range Forwarding Figure 5-33: Port Triggering Figure 5-34: DMZ Figure 5-35: Management Figure 5-36: Reporting Figure 5-37: System Log Figure 5-38: Ping Test Figure 5-39: Factory Defau
Wireless-G ADSL Gateway Figure C-9: New Rule Properties Figure C-10: IP Filter List Tab Figure C-11: Filter Acton Tab Figure C-12: Security Methods Tab Figure C-13: Authentication Methods Figure C-14: Preshared Key Figure C-15: New Preshared Key Figure C-16: Tunnel Setting Tab Figure C-17: Connection Type Tab Figure C-18: Properties Screen Figure C-19: IP Filter List Tab Figure C-20: Filter Action Tab Figure C-21: Authentication Methods Tab Figure C-22: Preshared Key Figure C-23: New Preshared Key Figure C
Wireless-G ADSL Gateway Chapter 1: Introduction Welcome The Linksys Wireless-G ADSL Gateway is the all-in-one solution for Internet connectivity in your home. The ADSL Modem function gives you a blazing fast connection to the Internet, far faster than a dial-up, and without tying up your phone line. Connect your computers to the Gateway via the built-in 4-port 10/100 Ethernet Switch to jump start your home network.
Wireless-G ADSL Gateway What’s in this Guide? This user guide covers the steps for setting up and using the Wireless-G ADSL Gateway. • Chapter 1: Introduction This chapter describes the Wireless-G ADSL Gateway Wireless-G ADSL Gateway applications and this User Guide. • Chapter 2: Planning Your Network This chapter describes the basics of networking. • Chapter 3: Getting to Know the Wireless-G ADSL Gateway This chapter describes the physical features of the Gateway.
Wireless-G ADSL Gateway • Appendix G: Specifications This appendix provides the technical specifications for the Gateway. • Appendix H: Warranty Information This appendix supplies the warranty information for the Gateway. • Appendix I: Regulatory Information This appendix supplies the regulatory information regarding the Gateway. • Appendix J: Contact Information This appendix provides contact information for a variety of Linksys resources, including Technical Support.
Wireless-G ADSL Gateway Chapter 2: Planning Your Network The Gateway’s Functions A Gateway is a network device that connects two networks together. In this instance, the Gateway connects your Local Area Network (LAN), or the group of computers in your home or office, to the Internet. The Gateway processes and regulates the data that travels between these two networks. The Gateway’s NAT feature protects your network of computers so users on the public, Internet side cannot “see” your computers.
Wireless-G ADSL Gateway Since you use the Gateway to share your DSL Internet connection, contact your ISP to find out if they have assigned a static IP address to your account. If so, you will need that static IP address when configuring the Gateway. You can get that information from your ISP. Dynamic IP Addresses A dynamic IP address is automatically assigned to a device on the network, such as computers and print servers.
Wireless-G ADSL Gateway telecommuters, and/or professionals on the road (travelers can connect to a VPN Gateway using any computer with VPN client software that supports IPSec, such as SSH Sentinel.) There are two basic ways to create a VPN connection: • VPN Gateway to VPN Gateway • Computer (using VPN client software that supports IPSec) to VPN Gateway The VPN Gateway creates a “tunnel” or channel between two endpoints, so that data transmissions between them are secure.
Wireless-G ADSL Gateway protect data inside of a local network. But what do you do once information is sent outside of your local network, when emails are sent to their destination, or when you have to connect to your company's network when you are out on the road? How is your data protected? That is when a VPN can help. VPNs secure data moving outside of your network as if it were still within that network. When data is sent out across the Internet from your computer, it is always open to attacks.
Wireless-G ADSL Gateway Chapter 3: Getting to Know the Wireless-G ADSL Gateway The Back Panel Figure 3-1: Back Panel The Gateway’s ports, where a network cable is connected, are located on the back panel. The Gateway’s buttons are also located on the back panel. LINE The LINE port connects to the ADSL line. Ethernet (1-4) The Ethernet ports connect to your computer and other network devices. Power The Power port is where you will connect the power adapter.
Wireless-G ADSL Gateway The Front Panel The Gateway's LEDs, where information about network activity is displayed, are located on the front panel. Figure 3-2: Front Panel Power Green. The Power LED lights up when the Gateway is powered on. Ethernet (1-4) Green. The LAN LED serves two purposes. If the LED is continuously lit, the Gateway is successfully connected to a device through the LAN port. If the LED is blinking, it is an indication of any network activity. WLAN Green.
Wireless-G ADSL Gateway Chapter 4: Connecting the Wireless-G ADSL Gateway Overview The Gateway’s setup consists of more than simply plugging hardware together. You will have to configure your networked computers to accept the IP addresses that the Gateway assigns them (if applicable), and you will also have to configure the Gateway with setting(s) provided by your Internet Service Provider (ISP).
Wireless-G ADSL Gateway Wired Connection to a Computer 1. Before you begin, make sure that all of your network’s hardware is powered off, including the Gateway and all computers. 2. Connect one end of an Ethernet network cable to one of the Ethernet ports (labeled 1-4) on the back of the Gateway (see Figure 4-1), and the other end to an Ethernet port on a computer. 3. Repeat this step to connect more computers, a switch, or other network devices to the Gateway.
Wireless-G ADSL Gateway Wireless Connection to a Computer If you want to use a wireless connection to access the Gateway, follow these instructions: 1. Before you begin, make sure that all of your network’s hardware is powered off, including the Gateway and all computers. NOTE: A small device called a microfilter (not included) may be necessary between each phone and wall jack to prevent interference. Contact your ISP if you have any questions.
Wireless-G ADSL Gateway Chapter 5: Configuring the Gateway Overview Follow the steps in this chapter and use the Gateway’s web-based utility to configure the Gateway. This chapter will describe each web page in the Utility and each page’s key functions. The utility can be accessed via your web browser through use of a computer connected to the Gateway.
Wireless-G ADSL Gateway • VPN. To enable or disable IPSec and/or PPTP Pass-through, and set up VPN tunnels, use this screen. Access Restrictions • Internet Access. This screen allows you to prevent or permit only certain users from attaching to your network. Applications & Gaming • Single Port Forwarding. Use this screen to set up common services or applications on your network. • Port Range Forwarding. To set up public services or other specialized Internet applications on your network, click this tab.
Wireless-G ADSL Gateway How to Access the Web-based Utility To access the web-based utility, launch Internet Explorer or Netscape Navigator, and enter the Gateway’s default IP address, 192.168.1.1, in the Address field. Then press Enter. A password request page, shown in Figure 5-1 will appear. (non-Windows XP users will see a similar screen.) Enter admin (the default user name) in the User Name field, and enter admin (the default password) in the Password field. Then click the OK button.
Wireless-G ADSL Gateway • Virtual Circuit: Enter the VPI and VCI ranges in the fields. • Internet Connection Type. The Gateway supports five Encapsulations: RFC 1483 Bridged, RFC 1483 Routed, RFC 2516 PPPoE, RFC 2364 PPPoA, and Bridged Mode Only. Each Basic Setup screen and available features will differ depending on what type of encapsulation you select. RFC 1483 Bridged Dynamic IP IP Settings. Select Obtain an IP Address Automatically if your ISP says you are connecting through a dynamic IP address.
Wireless-G ADSL Gateway RFC 1483 Routed If you are required to use RFC 1483 Routed, then select RFC 1483 Routed. • IP Address. This is the Gateway’s IP address, when seen from the WAN, or the Internet. Your ISP will provide you with the IP Address you need to specify here. • Subnet Mask. This is the Gateway’s Subnet Mask. Your ISP will provide you with the Subnet Mask. • Default Gateway. Your ISP will provide you with the Default Gateway Address, which is the ISP server’s IP address. • Primary DNS.
Wireless-G ADSL Gateway When finished making your changes on this tab, click the Save Settings button to save these changes, or click the Cancel Changes button to undo your changes. RFC 2364 PPPoA Some DSL-based ISPs use PPPoA (Point-to-Point Protocol over ATM) to establish Internet connections. If you are connected to the Internet through a DSL line, check with your ISP to see if they use PPPoA. If they do, you will have to enable PPPoA. • User Name and Password.
Wireless-G ADSL Gateway Optional Settings (Required by some ISPs) • Host Name and Domain Name. These fields allow you to supply a host and domain name for the Gateway. Some ISPs require these names as identification. You may have to check with your ISP to see if your broadband Internet service has been configured with a host and domain name. In most cases, leaving these fields blank will work. • MTU.
Wireless-G ADSL Gateway can enter up to three DNS Server IP Addresses here. The Router will use these for quicker access to functioning DNS servers. • WINS. The Windows Internet Naming Service (WINS) converts NetBIOS names to IP addresses. If you use a WINS server, enter that server’s IP address here. Otherwise, leave this field blank. • Time Setting. This is where you set the time zone for your Gateway. Select your time zone from the dropdown menu.
Wireless-G ADSL Gateway • Internet IP Address. The Router’s current Internet IP Address is displayed here. Because it is dynamic, this will change. • Status. The status of the DDNS service connection is displayed here. When finished making your changes on this tab, click the Save Settings button to save these changes, or click the Cancel Changes button to undo your changes. Advanced Routing Tab The Advanced Routing screen allows you to configure the dynamic routing and static routing settings.
Wireless-G ADSL Gateway route. If you are building a route to an entire network, be sure that the network portion of the IP address is set to 0. • Subnet Mask. The Subnet Mask (also known as the Network Mask) determines which portion of an IP address is the network portion, and which portion is the host portion. • Gateway. This IP address should be the IP address of the gateway device that allows for contact between the Gateway and the remote network or host. Figure 5-13: Routing Table • Hop Count.
Wireless-G ADSL Gateway The Wireless Tab Basic Wireless Settings Tab This screen allows you to choose your wireless network mode and wireless security. Wireless Network • Wireless Network Mode. If you have 802.11g and 802.11b devices in your network, then keep the default setting, Mixed. If you have only 802.11g devices, select 802.11g. If you have only 802.11b devices, select 802.11b. If you want to disable wireless networking, select Disabled. • Wireless Network Name (SSID).
Wireless-G ADSL Gateway Wireless Security Tab The Wireless Security settings configure the security of your wireless network. There are three wireless security mode options supported by the Gateway: WPA Pre-Shared Key, WPA RADIUS, and WEP. (WPA stands for Wi-Fi Protected Access, which is a security standard stronger than WEP encryption. WEP stands for Wired Equivalent Privacy, while RADIUS stands for Remote Authentication Dial-In User Service.) These are briefly discussed here.
Wireless-G ADSL Gateway WEP. WEP is a basic encryption method, which is not as secure as WPA. To use WEP, select a Default Key (choose which Key to use), and a level of WEP encryption, 64 bits 10 hex digits or 128 bits 26 hex digits. Then either generate a WEP key using a Passphrase or enter the WEP key manually. • WEP Encryption. An acronym for Wired Equivalent Privacy, WEP is an encryption method used to protect your wireless data communications.
Wireless-G ADSL Gateway Wireless Access Tab Wireless Network Access Wireless Network Access. If you select Allow All, all computers will be allowed access to the wireless network. To restrict access to the network, select Restrict Access, then select Prevent to prevent access or Permit only to permit access. Click the Edit MAC Address Access List button, and the screen will appear. Select the MAC Address from the list and click Wireless Client MAC List.
Wireless-G ADSL Gateway Advanced Wireless Settings Tab Advanced Wireless On this screen you can access the Advanced Wireless features, including Authentication Type, Basic Data Rates, Control Tx Rates, Beacon Interval, DTIM Interval, RTS Threshold, and Fragmentation Threshold. • Authentication Type. The default is set to Auto (default), which allows either Open System or Shared Key authentication to be used.
Wireless-G ADSL Gateway receiving an RTS, the wireless station responds with a Clear to Send (CTS) frame to acknowledge the right to begin transmission. The Security Tab Firewall When you click the Security tab, you will see the Firewall screen. This screen contains Filters and the option to Block WAN Requests. Filters block specific Internet data types and block anonymous Internet requests. To add Firewall Protection, click Enable. If you do not want Firewall Protection, click Disable.
Wireless-G ADSL Gateway VPN Virtual Private Networking (VPN) is a security measure that basically creates a secure connection between two remote locations. The VPN screen allows you to configure your VPN settings to make your network more secure. VPN Passthrough • IPSec Passthrough. Internet Protocol Security (IPSec) is a suite of protocols used to implement secure exchange of packets at the IP layer. To allow IPSec Passthrough, click the Enable button.
Wireless-G ADSL Gateway correctly, or the connection cannot be made. Remember, this is NOT the IP Address of the local VPN Gateway, but the IP Address of the remote VPN Gateway or device with which you wish to communicate. If you enter an IP address, only the specific IP Address will be able to acess the tunnel. If you select Any, any IP Address can access the tunnel. • Encryption. Using Encryption also helps make your connection more secure.
Wireless-G ADSL Gateway When finished making your changes on this tab, click the Save Settings button to save these changes, or click the Cancel Changes button to undo your changes. Advanced VPN Tunnel Setup From the Advanced IPSec VPN Tunnel Setup screen you can adjust the settings for specific VPN tunnels. Phase 1 • Phase 1 is used to create a security association (SA), often called the IKE SA.
Wireless-G ADSL Gateway • Key Life Time. In the Key Lifetime field, you may select to have the key expire at the end of a time period of your choosing. Enter the number of seconds you’d like the key to be used until a re-key negotiation between each endpoint is completed. Other Setting • NetBIOS broadcast. Check the box next to NetBIOS broadcast to enable NetBIOS traffic to pass through the VPN tunnel. • Anti-replay. Check the box next to Anti-replay to enable the Anti-replay protection.
Wireless-G ADSL Gateway The Access Restrictions Tab Internet Access The Access Restrictions tab allows you to block or allow specific kinds of Internet usage. You can set up Internet access policies for specific computers and set up filters by using network port numbers. • Internet Access Policy. Multiple Filters can be saved as Internet Access Policies. When you wish to edit one, select the number of the Policy from the drop-down menu. The tab will change to reflect the settings of this Policy.
Wireless-G ADSL Gateway 3. If you wish to Deny or Allow Internet access for those computers you listed on the List of PCs screen, click the option. 4. You can filter access to various services accessed over the Internet, such as FTP or Telnet, by selecting a service from the drop-down menus next to Blocked Services. If a service isn’t listed, you can click the Add/ Edit Service button to open the Port Services screen and add a service to the list.
Wireless-G ADSL Gateway The Applications and Gaming Tab Single Port Forwarding The Single Port Forwarding screen provides options for customization of port services for common applications. When users send this type of request to your network via the Internet, the Gateway will forward those requests to the appropriate computer.
Wireless-G ADSL Gateway Port Triggering Port Triggering is used for special applications that can request a port to be opened on demand. For this feature, the Gateway will watch outgoing data for specific port numbers. The Gateway will remember the IP address of the computer that sends a transmission requesting data, so that when the requested data returns through the Gateway, the data is pulled back to the proper computer by way of IP address and port mapping rules. • Application.
Wireless-G ADSL Gateway QOS Quality of Service (QoS) ensures better service to high-priority types of network traffic, which may involve demanding, realtime applications, such as Internet phone calls or videoconferencing. Application-based QoS Application-based QoS manages information as it is transmitted and received. Depending on the settings of the QoS screen, this feature will assign information a high or low priority for the five preset applications and three additional applications that you specify.
Wireless-G ADSL Gateway Enable 802.1p P bits scheduling. VLAN’s VID. Select this option to enable 802.1p P bits classification scheduling in the appropriate VLAN based on IEEE 802.1Q VLAN identification. Enter the VLAN VID (VLAN Identifier) number in the field. When you have finished making changes to this screen, click the Save Settings button to save the changes, or click the Cancel Changes button to undo your changes.
Wireless-G ADSL Gateway Identification. To enable SNMP, click Enabled. To disable SNMP, click Disabled. UPnP UPnP allows Windows XP to automatically configure the Gateway for various Internet applications, such as gaming and videoconferencing. UPnp. To enable UPnP, click Enabled. When finished making your changes on this tab, click the Save Settings button to save these changes, or click the Cancel Changes button to undo your changes.
Wireless-G ADSL Gateway Diagnostics Ping Test Ping Test Parameters • Ping Target IP. Enter the IP Address that you want to ping in the field. This can be either a local (LAN) IP or an Internet (WAN) IP address. • Ping Size. Enter the size of the ping packets. • Number of Pings. Enter the number of times that you want to ping. • Ping Interval. Enter the ping interval in milliseconds. Figure 5-39: Ping Test • Ping Timeout. Enter the time in milliseconds. • Ping Result.
Wireless-G ADSL Gateway Firmware Upgrade The ADSL Gateway allows you to upgrade firmware for the LAN (network) side of the Gateway. Upgrade from LAN To upgrade the Gateway’s firmware from the LAN: 1. Click the Browse button to find the firmware upgrade file that you downloaded from the Linksys website and then extracted. 2. Double-click the firmware file you downloaded and extracted. Click the Upgrade button, and follow the instructions there.
Wireless-G ADSL Gateway The Status Tab Gateway This screen displays information about your Gateway and its WAN (Internet) Connections. Gateway Information Gateway Information displays the Software Version, MAC Address, and Current Time. Internet Connections The Internet Connections will be displayed after selecting the Internet connection number from the drop-down menu. They are the Login Type, interface, IP Address, Subnet Mask, Default Gateway, and DNS 1, 2, and 3 servers. DHCP Renew.
Wireless-G ADSL Gateway Local Network The Local Network information that is displayed is the local Mac Address, IP Address, Subnet Mask, and DHCP Server, Start IP Address, and End IP Address. To view the DHCP Clients Table, click the DHCP Clients Table button. DHCP Clients Table. Click the DHCP Clients Table button to show the current DHCP Client data. You will see the MAC address, computer name, and IP address of the network clients using the DHCP server.
Wireless-G ADSL Gateway Wireless The Wireless network information that is displayed is the Wireless Firmware Version, MAC Address, Mode, SSID, DHCP Server, Channel, and Encryption Function. Click the Wireless Clients Connected button to view the wireless clients connected to the Gateway. Click the Refresh button if you want to Refresh your screen. Click the Close button to close the screen.
Wireless-G ADSL Gateway DSL Connection The DSL Connection information that is displayed is the Status, Downstream Rate, and Upstream Rate. The PVC Connection information that is displayed is Encapsulation, Multiplexing, QoS, Pcr Rate, Scr Rate, Autodetect, VPI, VCI, and PVC Status. Click the Refresh button if you want to Refresh your screen.
Wireless-G ADSL Gateway Appendix A: Troubleshooting This appendix consists of two parts: “Common Problems and Solutions” and “Frequently Asked Questions.” Provided are possible solutions to problems that may occur during the installation and operation of the Gateway. Read the descriptions below to help you solve your problems. If you can’t find an answer here, check the Linksys international website at www.linksys.com/international. Common Problems and Solutions 1.
Wireless-G ADSL Gateway 7. Toward the bottom of the window, select Use the following DNS server addresses, and enter the Preferred DNS server and Alternative DNS server (provided by your ISP). Contact your ISP or go on its website to find the information. 8. Click the OK button in the Internet Protocol (TCP/IP) Properties window, and click the OK button in the Local Area Connection Properties window. 9. Restart the computer if asked.
Wireless-G ADSL Gateway For Windows 98 and Me: • Click Start and Run. In the Open field, type in command. Press the Enter key or click the OK button. For Windows NT, 2000, and XP: • Click Start and Run. In the Open field, type cmd. Press the Enter key or click the OK button. In the command prompt, type ping 192.168.1.1 and press the Enter key. • If you get a reply, the computer is communicating with the Gateway.
Wireless-G ADSL Gateway 3. Refer to “Problem #10: I need to remove the proxy settings or the dial-up pop-up window (for PPPoE users).” 5. I can’t get my Virtual Private Network (VPN) working through the Gateway. Access the Gateway’s web interface by going to http://192.168.1.1 or the IP address of the Gateway, and go to the Security tab. Make sure you have IPsec passthrough and/or PPTP pass-through enabled.
Wireless-G ADSL Gateway field provided. Check “Appendix D: Finding the MAC Address and IP Address for Your Ethernet Adapter” for details on getting an IP address. 6. Check the Enable option for the port services you want to use. Consider the example below: Customized Application Web server FTP server SMTP (outgoing) POP3 (incoming) External Port 80 to 80 21 to 21 25 to 25 110 to 110 TCP X X X X UDP IP Address 192.168.1.100 192.168.1.101 192.168.1.102 192.168.1.
Wireless-G ADSL Gateway 8. I can’t get the Internet game, server, or application to work. If you are having difficulties getting any Internet game, server, or application to function properly, consider exposing one computer to the Internet using DeMilitarized Zone (DMZ) hosting. This option is available when an application requires too many ports or when you are not sure which port services to use.
Wireless-G ADSL Gateway • For Netscape 4.7 or higher: 1. Start Netscape Navigator, and click Edit, Preferences, Advanced, and Proxies. 2. Make sure you have Direct connection to the Internet selected on this screen. 3. Close all the windows to finish. 11. To start over, I need to set the Gateway to factory default. Hold the Reset button for 10 seconds and then release it. This will return the Internet settings, password, forwarding, and other settings on the Gateway to the factory default settings.
Wireless-G ADSL Gateway 1. To connect to the Gateway, go to the web browser, and enter http://192.168.1.1 or the IP address of the Gateway. 2. Enter the username and password, if asked. (The default username and password is admin.) 3. On the Setup screen, select the option Keep Alive, and set the Redial Period option at 20 (seconds). 4. Click the Save Settings button. Click the Status tab, and click the Connect button. 5. You may see the login status display as Connecting.
Wireless-G ADSL Gateway • If the Gateway is configured correctly, check your Internet connection (DSL/cable modem, etc.) to see if it is working correctly. You can remove the Gateway to verify a direct connection. • Manually configure the TCP/IP settings with a DNS address provided by your ISP. • Make sure that your browser is set to connect directly and that any dial-up is disabled. For Internet Explorer, click Tools, Internet Options, and then the Connection tab.
Wireless-G ADSL Gateway Does the Gateway support ICQ send file? Yes, with the following fix: click ICQ menu -> preference -> connections tab->, and check I am behind a firewall or proxy. Then set the firewall time-out to 80 seconds in the firewall setting. The Internet user can then send a file to a user behind the Gateway. I set up an Unreal Tournament Server, but others on the LAN cannot join.
Wireless-G ADSL Gateway Gateway’s web-based utility. If the Gateway’s Internet connection is working well, there is no need to download a newer firmware version, unless that version contains new features that you would like to use. Will the Gateway function in a Macintosh environment? Yes, but the Gateway’s setup pages are accessible only through Internet Explorer 4.0 or Netscape Navigator 4.0 or higher for Macintosh. I am not able to get the web configuration screen for the Gateway.
Wireless-G ADSL Gateway How can I check whether I have static or DHCP IP Addresses? Consult your ISP to obtain this information. How do I get mIRC to work with the Gateway? Under the Port Forwarding tab, set port forwarding to 113 for the computer on which you are using mIRC. Can the Gateway act as my DHCP server? Yes. The Gateway has DHCP server software built-in.
Wireless-G ADSL Gateway To achieve true seamless connectivity, the wireless LAN must incorporate a number of different functions. Each node and access point, for example, must always acknowledge receipt of each message. Each node must maintain contact with the wireless network even when not actually transmitting data. Achieving these functions simultaneously requires a dynamic RF networking technology that links access points and nodes.
Wireless-G ADSL Gateway Will the information be intercepted while it is being transmitted through the air? WLAN features two-fold protection in security. On the hardware side, as with Direct Sequence Spread Spectrum technology, it has the inherent security feature of scrambling. On the software side, WLAN offers the encryption function (WEP) to enhance security and access control.
Wireless-G ADSL Gateway Appendix B: Wireless Security Important Information for Wireless Products Linksys wants to make wireless networking as safe and easy for you as possible. So, please keep the following points in mind whenever setting up or using your wireless network. 1. Performance. The actual performance of your wireless network depends on a number of factors, including: In an Infrastructure environment, your distance from the access point.
Wireless-G ADSL Gateway E. Change the SSID periodically. F. Enable WEP 128-bit Encryption. Please note that this will reduce your network performance. G. Change the WEP encryption keys periodically. For information on implementing these security features, please refer to the User Guide. 4. Security Threats Facing Wireless Networks Wireless networks are easy to find. Hackers know that in order to join a wireless network, wireless networking products first listen for “beacon messages”.
Wireless-G ADSL Gateway MAC Addresses. Enable MAC Address filtering. MAC Address filtering will allow you to provide access to only those wireless nodes with certain MAC Addresses. This makes it harder for a hacker to access your network with a random MAC Address. WEP Encryption. Wired Equivalent Privacy (WEP) is often looked upon as a panacea for wireless security concerns. This is overstating WEP’s ability. Again, this can only provide enough security to make a hacker’s job more difficult.
Wireless-G ADSL Gateway Appendix C: Configuring IPSec between a Windows 2000 or XP Computer and the Gateway Introduction This document demonstrates how to establish a secure IPSec tunnel using preshared keys to join a private network inside the Gateway and a Windows 2000 or XP computer. You can find detailed information on configuring the Windows 2000 server at the Microsoft website: Microsoft KB Q252735 - How to Configure IPSec Tunneling in Windows 2000 http://support.microsoft.
Wireless-G ADSL Gateway How to Establish a Secure IPSec Tunnel Step 1: Create an IPSec Policy 1. Click the Start button, select Run, and type secpol.msc in the Open field. The Local Security Setting screen will appear as shown in Figure C-1. Figure C-1: Local Security Screen 2. Right-click IP Security Policies on Local Computer (Win XP) or IP Security Policies on Local Machine (Win 2000), and click Create IP Security Policy. 3.
Wireless-G ADSL Gateway 3. The Filters Properties screen will appear, as shown in Figure C-5. Select the Addressing tab. In the Source address field, select My IP Address. In the Destination address field, select A specific IP Subnet, and fill in the IP Address: 192.168.1.0 and Subnet mask: 255.255.255.0. (These are the Router’s default settings. If you have changed these settings, enter your new values.) 4.
Wireless-G ADSL Gateway 7. The IP Filter List screen should appear, as shown in Figure C-7. Enter an appropriate name, such as Router>win for the filter list, and de-select the Use Add Wizard check box. Click the Add button. 8. The Filters Properties screen will appear, as shown in Figure C-8. Select the Addressing tab. In the Source address field, select A specific IP Subnet, and enter the IP Address: 192.168.1.0 and Subnet mask: 255.255.255.0.
Wireless-G ADSL Gateway Step 3: Configure Individual Tunnel Rules Tunnel 1: win->Router 1. From the IP Filter List tab, shown in Figure C-10, click the filter list win->Router. 2. Click the Filter Action tab (as in Figure C-11), and click the filter action Require Security radio button. Then, click the Edit button. Figure C-10: IP Filter List Tab 3.
Wireless-G ADSL Gateway 4. Select the Authentication Methods tab, shown in Figure C-13, and click the Edit button. 5. Change the authentication method to Use this string to protect the key exchange (preshared key), as shown in Figure C-14, and enter the preshared key string, such as XYZ12345. Click the OK button. Figure C-13: Authentication Methods 6. This new Preshared key will be displayed in Figure C-15.
Wireless-G ADSL Gateway 7. Select the Tunnel Setting tab, shown in Figure C-16, and click The tunnel endpoint is specified by this IP Address radio button. Then, enter the Router’s WAN IP Address. 8. Select the Connection Type tab, as shown in Figure C-17, and click All network connections. Then, click the OK or Close button to finish this rule. Figure C-16: Tunnel Setting Tab Tunnel 2: Router->win 9.
Wireless-G ADSL Gateway 10. Go to the IP Filter List tab, and click the filter list Router->win, as shown in Figure C-19. 11. Click the Filter Action tab, and select the filter action Require Security, as shown in Figure C-20. Then, click the Edit button. From the Security Methods tab, shown previously in Figure C-12, verify that the Negotiate security option is enabled, and deselect the Accept unsecured communication, but always respond using IPSec check box.
Wireless-G ADSL Gateway 13. Change the authentication method to Use this string to protect the key exchange (preshared key), and enter the preshared key string, such as XYZ12345, as shown in Figure C-22. (This is a sample key string. Yours should be a key that is unique but easy to remember.) Then click the OK button. 14. This new Preshared key will be displayed in Figure C-23. Click the Apply button to continue, if it appears on your screen, otherwise proceed to the next step.
Wireless-G ADSL Gateway 16. Click the Connection Type tab, shown in Figure C-25, and select All network connections. Then click the OK or Close button to finish. 17. From the Rules tab, shown in Figure C-26, click the OK or Close button to return to the secpol screen. Figure C-25: Connection Type Step 4: Assign New IPSec Policy In the IP Security Policies on Local Computer window, shown in Figure C-27, right-click the policy named to_Router, and click Assign. A green arrow appears in the folder icon.
Wireless-G ADSL Gateway Step 5: Create a Tunnel Through the Web-Based Utility 1. Open your web browser, and enter 192.168.1.1 in the Address field. Press the Enter key. 2. When the User name and Password field appears, enter the default user name and password admin. Press the Enter key. 3. From the Setup tab, click the VPN tab. 4. From the VPN tab, shown in Figure C-28, select the tunnel you wish to create in the Select Tunnel Entry dropdown box. Then click Enabled.
Wireless-G ADSL Gateway Appendix D: Finding the MAC Address and IP Address for Your Ethernet Adapter This section describes how to find the MAC address for your computer’s Ethernet adapter so you can use the MAC filtering feature of the Gateway. You can also find the IP address of your computer’s Ethernet adapter. This IP address is used for the Gateway’s filtering, forwarding, and/or DMZ features. Follow the steps in this appendix to find the adapter’s MAC or IP address in Windows 98, Me, 2000, or XP.
Wireless-G ADSL Gateway Windows 2000 or XP Instructions 1. Click Start and Run. In the Open field, enter cmd. Press the Enter key or click the OK button. Note: The MAC address is also called the Physical Address. 2. At the command prompt, enter ipconfig /all. Then press the Enter key. 3. Write down the Physical Address as shown on your computer screen (Figure D-3); it is the MAC address for your Ethernet adapter. This appears as a series of numbers and letters.
Wireless-G ADSL Gateway Appendix E: Upgrading Firmware The ADSL Gateway allows you to upgrade firmware for the WAN (Internet) side of the Gateway and the LAN (network) side of the Gateway through the Web-Utility's Firmware Upgrade tab from the Administration tab. Follow these instructions:. Upgrade from WAN To upgrade the Gateway’s firmware from the WAN : Enter the URL for the firmware in the URL field, then click the Upgrade button, and follow the instructions there.
Wireless-G ADSL Gateway Appendix F: Glossary 802.11a - An IEEE wireless networking standard that specifies a maximum data transfer rate of 54Mbps and an operating frequency of 5GHz. 802.11b - An IEEE wireless networking standard that specifies a maximum data transfer rate of 11Mbps and an operating frequency of 2.4GHz. 802.11g - An IEEE wireless networking standard that specifies a maximum data transfer rate of 54Mbps, an operating frequency of 2.4GHz, and backward compatibility with 802.11b devices.
Wireless-G ADSL Gateway Buffer - A block of memory that temporarily holds data to be worked on later when a device is currently too busy to accept the data. Cable Modem - A device that connects a computer to the cable television network, which in turn connects to the Internet. CSMA/CA (Carrier Sense Multiple Access/Collision Avoidance) - A method of data transfer that is used to prevent data loss in a network. CTS (Clear To Send) - A signal sent by a device to indicate that it is ready to receive data.
Wireless-G ADSL Gateway Dynamic IP Address - A temporary IP address assigned by a DHCP server. Encryption - Encoding data to prevent it from being read by unauthorized people. Ethernet - An IEEE standard network protocol that specifies how data is placed on and retrieved from a common transmission medium. Finger - A program that tells you the name associated with an e-mail address. Firewall - Security measures that protect the resources of a local network from intruders. Firmware - 1.
Wireless-G ADSL Gateway IPCONFIG - A Windows 2000 and XP utility that displays the IP address for a particular networking device. IPSec (Internet Protocol Security) - A VPN protocol used to implement secure exchange of packets at the IP layer. ISM band - Radio band used in wireless networking transmissions. ISP (Internet Service Provider) - A company that provides access to the Internet. LAN (Local Area Network) - The computers and networking products that make up the network in your home or office.
Wireless-G ADSL Gateway PPPoE (Point to Point Protocol over Ethernet) - A type of broadband connection that provides authentication (username and password) in addition to data transport. PPTP (Point-to-Point Tunneling Protocol) - A VPN protocol that allows the Point to Point Protocol (PPP) to be tunneled through an IP network. This protocol is also used as a type of broadband connection in Europe. Preamble - Part of the wireless signal that synchronizes network traffic.
Wireless-G ADSL Gateway TCP/IP (Transmission Control Protocol/Internet Protocol) - A network protocol for transmitting data that requires acknowledgement from the recipient of data sent. Telnet - A user command and TCP/IP protocol used for accessing remote computers. TFTP (Trivial File Transfer Protocol) - A version of the TCP/IP FTP protocol that uses UDP and has no directory or password capability. Throughput - The amount of data moved successfully from one node to another in a given time period.
Wireless-G ADSL Gateway Appendix G: Specifications Standards IEEE 802.11g, IEEE 802.11b, IEEE 802.3u, IEEE 802.3, G.992.1 (G.dmt), G.992.2 (G.lite), ITU G.992.3, ITU G.992.5, ANSI T1.413i2, WAG54G-E1: Annex-B, WAG54G-DE: UR-2 Ports Power, LINE (ADSL), Ethernet (1-4) Buttons One Reset Button, One On/Off Switch Cabling Type UTP CAT 5 or better, Phone Cable (POTS) Data Rate Up to 54Mbps (wireless) Up to 8Mbps downstream ADSL Up to 800kbps upstream ADSL Transmit Power 18 dBm on 802.
Wireless-G ADSL Gateway Storage Temp.
Wireless-G ADSL Gateway Appendix H: Regulatory Information FCC Statement This product has been tested and complies with the specifications for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
Wireless-G ADSL Gateway Compliance Information for 2.
Wireless-G ADSL Gateway NOTE: If you need any technical documentation, see the “How to Access Technical Documents on www.linksys.com/international” section for more information.
Wireless-G ADSL Gateway National Restrictions This product may be used in all EU countries (and other countries following the EU directive 1999/5/EC) without any limitation except for the countries mentioned below: Ce produit peut être utilisé dans tous les pays de l’UE (et dans tous les pays ayant transposés la directive 1999/5/CE) sans aucune limitation, excepté pour les pays mentionnés ci-dessous: Questo prodotto è utilizzabile in tutte i paesi EU (ed in tutti gli altri paesi che seguono le direttive EU
Wireless-G ADSL Gateway Italy This product meets the National Radio Interface and the requirements specified in the National Frequency Allocation Table for Italy. Unless operating within the boundaries of the owner’s property, the use of this 2.4 GHz Wireless LAN product requires a ‘general authorization’. Please check with http://www.comunicazioni.it/it/ for more details.
Wireless-G ADSL Gateway Windows XP 1. Double-click the Wireless icon in your desktop’s system tray. 2. Open the Wireless Network Connection window. 3. Click the Properties button. 4. Select the General tab, and click the Configure button. 5. In the Properties window, click the Advanced tab. 6. Select Power Output. 7. From the pull-down menu on the right, select the wireless adapter’s power output percentage. Windows 2000 1. Open the Control Panel. 2. Double-click Network and Dial-Up Connections. 3.
Wireless-G ADSL Gateway Appendix I: Warranty Information Linksys warrants to You that, for a period of three years (the “Warranty Period”), your Linksys Product will be substantially free of defects in materials and workmanship under normal use. Your exclusive remedy and Linksys' entire liability under this warranty will be for Linksys at its option to repair or replace the Product or refund Your purchase price less any rebates. This limited warranty extends only to the original purchaser.
Wireless-G ADSL Gateway Appendix J: Contact Information Need to contact Linksys? Visit us online for information on the latest products and updates to your existing products at: http://www.linksys.com/international If you experience problems with any Linksys product, you can e-mail us at: In Europe E-mail Address Austria support.at@linksys.com Belgium support.be@linksys.com Denmark support.dk@linksys.com France support.fr@linksys.com Germany support.de@linksys.com Italy support.it@linksys.
