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Appendix B: Wireless Security
Security Threats Facing Wireless Networks

Wireless-G Media Storage Link Router with SpeedBooster

WPA Enterprise and WPA2 Enterprise use a RADIUS (Remote Authentication Dial-In User Service) server for 
authentication. RADIUS uses a RADIUS server and WEP encryption.

WPA Personal

. Select the type of algorithm, TKIP or AES, and enter a password in the 

Passphrase

 field of 

8-63 characters. Enter a Group Key Renewal period time between 0 and 99,999 seconds, which instructs the 
Router or other device how often it should change the encryption keys.

WPA2 Personal

. WPA2 uses TKIP + AES, with dynamic encryption keys. Enter a Passphrase of 8-63 

characters. Then enter a Group Key Renewal period, which instructs the Router or other device how often it 
should change the encryption keys.

WPA Enterprise

. This method is WPA used in coordination with a RADIUS server. Enter the IP address and 

port number of the RADIUS server. Then enter the key shared between the Router and its RADIUS server. Then 
enter a Key Renewal Timeout period, which instructs the Router or other device how often it should change 
the encryption keys.

WPA2 Enterprise

. This method is WPA2 used in coordination with a RADIUS server. Enter the IP address and 

port number of the RADIUS server. Then enter the key shared between the Router and its RADIUS server. Then 
enter a Key Renewal Timeout period, which instructs the Router or other device how often it should change 
the encryption keys.

RADIUS

. This method is WEP used in coordination with a RADIUS server. Enter the IP address and port 

number of the RADIUS server. Then enter the key shared between the Gateway and its RADIUS server. Enter 
the WEP settings.

Implementing encryption may have a negative impact on your network’s performance, but if you are transmitting 
sensitive data over your network, encryption should be used. 

These security recommendations should help keep your mind at ease while you are enjoying the most flexible 
and convenient technology Linksys has to offer.

Содержание WRTSL54GS

Страница 1: ...A Division of Cisco Systems Inc Model No Media Storage Link Router Wireless G WRTSL54GS User Guide WIRELESS GHz 2 4802 11g with SpeedBooster...

Страница 2: ...definitions for technical terms that are presented like this Also each figure diagram screenshot or other image is provided with a figure number and description like this Figure numbers and descripti...

Страница 3: ...5 Configuring the Wireless G Media Storage Link Router 12 Overview 12 The Setup Tab Basic Setup 13 The Setup Tab DDNS 18 The Setup Tab MAC Address Clone 19 The Setup Tab Advanced Routing 20 The Wirel...

Страница 4: ...The Status Tab Wireless 50 Appendix A Troubleshooting 51 Common Problems and Solutions 51 Frequently Asked Questions 59 Appendix B Wireless Security 67 Security Precautions 67 Security Threats Facing...

Страница 5: ...tion Type 14 Figure 5 7 L2TP Connection Type 15 Figure 5 8 Telstra Cable Connection Type 15 Figure 5 9 Optional Settings 16 Figure 5 10 Router IP 16 Figure 5 11 Network Address Server Settings 16 Figu...

Страница 6: ...ss 33 Figure 5 38 Storage Tab Administration 34 Figure 5 39 User Properties 34 Figure 5 40 Modify Group Properties 35 Figure 5 41 Create New Group Group Properties 35 Figure 5 42 Storage Tab Media Ser...

Страница 7: ...dministration Tab Config Management 47 Figure 5 62 Status Tab Router 48 Figure 5 63 Status Tab Local Network 49 Figure 5 64 DHCP Clients Table 49 Figure 5 65 Status Tab Wireless 50 Figure C 1 Upgrade...

Страница 8: ...computer resources You can access one printer from different computers and access data located on another computer s hard drive Networks are even used for playing multiplayer video games So networks...

Страница 9: ...basics of wireless networking Chapter 3 Getting to Know the Wireless G Media Storage Link Router This chapter describes the physical features of the Router Chapter 4 Connecting the Wireless G Media St...

Страница 10: ...of the Router Appendix F Glossary This appendix gives a brief glossary of terms frequently used in networking Appendix G Specifications This appendix provides the technical specifications for the Rout...

Страница 11: ...torage Link Router with SpeedBooster which serves as the main point of communications in a wireless network The Router transmits data to PCs equipped with wireless network adapters which can roam with...

Страница 12: ...rintServer and Wireless Ethernet Bridges When you wish to connect your wireless network with your wired network you can use the Router s four Ethernet LAN ports To add more ports any of the Router s E...

Страница 13: ...port is where you will connect your broadband Internet connection 1 2 3 4 These ports 1 2 3 4 connect the Router to your networked PCs and other Ethernet network devices Reset Button There are two way...

Страница 14: ...Power Green The Power LED lights up and will stay on while the Router is powered on When the Router goes through its self diagnostic mode during every boot up this LED will flash When the diagnostic i...

Страница 15: ...he best place for the Router is usually at the center of your wireless network with line of sight to all of your mobile stations 3 Fix the direction of the antenna Try to place the Router in a positio...

Страница 16: ...oster 5 Connect a standard Ethernet network cable to the Router s Internet port Then connect the other end of the Ethernet cable to your cable or DSL modem 6 Connect your network PCs or Ethernet devic...

Страница 17: ...in further detail below Stand Option If you place the Gateway flat on a surface then you can leave the stand in the closed position However if you want the Gateway to be upright swivel the stand clock...

Страница 18: ...nd leave 0 2 inches 5 mm of its head exposed 4 Maneuver the Router so the wall mount slots line up with the two screws 5 Place the wall mount slots over the screws and slide the Router down until the...

Страница 19: ...ab The Router s default password is admin To secure the Router change the Password from its default There are eight main tabs Setup Wireless Security Storage Access Restrictions Applications Gaming Ad...

Страница 20: ...ype is set to Automatic Configuration DHCP which should be kept only if your ISP supports DHCP or you are connecting through a dynamic IP address Static IP If you are required to use a permanent IP ad...

Страница 21: ...default Redial Period is 30 seconds PPTP Point to Point Tunneling Protocol PPTP is a service that applies to connections in Europe only Specify Internet IP Address This is the Router s IP address as s...

Страница 22: ...often you want the Router to check the Internet connection The default Redial Period is 30 seconds Telstra Cable Telstra Cable is a service that applies to connections in Australia only If your ISP u...

Страница 23: ...Network Setup section changes the settings on the network connected to the Router s Ethernet ports Wireless Setup is performed through the Wireless tab Router IP This presents both the Router s IP Add...

Страница 24: ...y Static DNS 1 3 The Domain Name System DNS is how the Internet translates domain or website names into Internet addresses or URLs Your ISP will provide you with at least one DNS Server IP Address If...

Страница 25: ...User Name Enter the User Name for your DDNS account Password Enter the Password for your DDNS account Host Name The is the DDNS URL assigned by the DDNS service Internet IP Address This is the Router...

Страница 26: ...re register the MAC address with your ISP you may assign the MAC address you have currently registered with your ISP to the Router with the MAC Address Clone feature MAC Clone Enable Disable To have...

Страница 27: ...he destination RIP This feature is Disabled by default From the drop down menu you can also select LAN Wireless which performs dynamic routing over your Ethernet and wireless networks You can also sel...

Страница 28: ...his interface tells you whether the Destination IP Address is on the LAN Wireless Ethernet and wireless networks the WAN Internet or Loopback a dummy network in which one PC acts like a network necess...

Страница 29: ...s to a unique name Wireless Channel Select the appropriate channel from the list provided to correspond with your network settings All devices in your wireless network must be broadcast on the same ch...

Страница 30: ...settings with the Router s factory defaults click the Reset Security button A new screen will appear You will be asked to confirm that you want to reset the wireless security settings Click the OK bu...

Страница 31: ...gs button to apply your changes or click the Cancel Changes button to cancel your changes For detailed instructions on configuring wireless security for the Router turn to Appendix B Wireless Security...

Страница 32: ...Router turn to Appendix B Wireless Security WPA2 Enterprise This option features WPA2 used in coordination with a RADIUS server This should only be used when a RADIUS server is connected to the Router...

Страница 33: ...WEP is a basic encryption method which is not as secure as WPA To use WEP select a Default Transmit Key choose which Key to use and a level of WEP encryption 64 bits 10 hex digits or 128 bits 26 hex d...

Страница 34: ...AC Address select Disable Prevent Clicking this button will block wireless access by MAC Address Permit Only Clicking this button will allow wireless access by MAC Address Edit MAC Address Filter List...

Страница 35: ...mission configure the Transmission Rate setting Transmission Rate The rate of data transmission should be set depending on the speed of your wireless network You can select from a range of transmissio...

Страница 36: ...efault value 2347 is recommended If a network packet is smaller than the preset RTS threshold size the RTS CTS mechanism will not be enabled The Router sends Request to Send RTS frames to a particular...

Страница 37: ...s to work their way into your network This feature is enabled by default Uncheck the box to allow anonymous Internet requests Filter Multicast Multicasting allows for multiple transmissions to specifi...

Страница 38: ...er click Enable IPSec Passthrough is enabled by default PPTP Passthrough Point to Point Tunneling Protocol PPTP allows the Point to Point Protocol PPP to be tunneled through an IP network To allow PPT...

Страница 39: ...transferred to or from the disk otherwise data may be lost If a formatted disk is attached to the Router the Partition File System Total Space and Free Space columns describe the partition s of the d...

Страница 40: ...s privileges of a share On the Share Access screen groups with no access are listed in the Other Group column and groups with access are listed in the Group with Access column To give a group read onl...

Страница 41: ...are listed in the User Management table There are two default users admin read write access and guest read only access these cannot be deleted Properties Modify Click the Modify button to change the...

Страница 42: ...roup button To remove a user from the group select the user and click the Remove button Click the Save Settings button to save the changes or click the Cancel Changes button to cancel the changes Clic...

Страница 43: ...er what files are available for streaming Scan All Partitions Click this button to scan all partitions of the USB hard disk for content Select Partitions to Scan Click this button to select specific p...

Страница 44: ...s screen to establish an access policy after the Save Settings button is clicked Selecting a policy from the drop down menu will display that policy s settings To delete a policy select that policy s...

Страница 45: ...an block up to 20 services Then enter the range of ports you want to filter If the service you want to block is not listed or you want to edit a service s settings then click the Add Edit Service butt...

Страница 46: ...ard a port enter the information on each line for the criteria required The criteria are described here Port Range Application In this field enter the name you wish to give the application Each name c...

Страница 47: ...cation name of the trigger Triggered Range For each application list the triggered port number range Check with the Internet application documentation for the port number s needed Start Port Enter the...

Страница 48: ...e PC The Port Range Forward feature is more secure because it only opens the ports you want to have opened while DMZ hosting opens all the ports of one computer exposing the computer to the Internet A...

Страница 49: ...th a particular application is allowed to use Device Priority Device name Enter the name of your network device in the Device name field Priority Select its priority level from the drop down menu MAC...

Страница 50: ...the Specific Port field Wireless QoS The Router features Wi Fi Multimedia WMM Support The No Acknowledgement feature is available only when the WMM Support feature is enabled WMM Support If you have...

Страница 51: ...are giving wireless access to your guests you can disable wireless access to the router s web based utility You will only be able to access the web based utility via a wired connection if you disable...

Страница 52: ...the Log function keep the default setting Disable To monitor traffic between the network and the Internet select Enable When you wish to view the logs click Incoming Log or Outgoing Log depending on w...

Страница 53: ...click the Ping button The Ping Test screen will then display the test results To stop the test click the Stop button Click the Clear Log button to clear the screen Click the Close button to return to...

Страница 54: ...Firmware Please select a file to upgrade Firmware can be upgraded by clicking the Upgrade button after browsing for the firmware which you can download from the Linksys website Do not upgrade your fi...

Страница 55: ...Tab Domain Name If required by your ISP this would have been entered on the Setup Tab Internet Configuration Type Displayed here is the information entered on the Setup Tab and required by your ISP f...

Страница 56: ...CP Server If you are using the Router as a DHCP server that will be displayed here Start IP Address For the range of IP Addresses used by devices on your local Ethernet network the beginning of that r...

Страница 57: ...his will display the wireless mode Mixed G Only or Disabled used by the network SSID As entered on the Wireless tab this will display the wireless network name or SSID DHCP Server If you are using the...

Страница 58: ...static IP address on a PC You can assign a static IP address to a PC by performing the following steps For Windows 98SE and Me 1 Click Start Settings and Control Panel Double click Network 2 In The fo...

Страница 59: ...ctions assume you are running Windows XP with the default interface If you are using the Classic interface where the icons and menus look like previous Windows versions please follow the instructions...

Страница 60: ...your original computer is not the cause of the problem If you do NOT get a reply there may be a problem with the connection Try the ping command from a different computer to verify that your original...

Страница 61: ...th the server you installed Follow these steps to set up port forwarding through the Router s web based utility We will be setting up web ftp and mail servers 1 Access the Router s web based utility b...

Страница 62: ...network device that you want the port server to go to For example if the web server s Ethernet adapter IP address is 192 168 1 100 you would enter 100 in the field provided Check Appendix E Finding th...

Страница 63: ...g steps 1 Access the Router s web based utility by going to http 192 168 1 1 or the IP address of the Router Enter the default password admin and click the Administration Management tab 2 Enter a diff...

Страница 64: ...and follow the pdf s instructions Set a static IP address on the PC refer to Problem 2 I need to set a static IP address Use the following IP address settings for the computer you are using IP Address...

Страница 65: ...g after this time the device is not working properly Try to flash the firmware by assigning a static IP address to the computer and then upgrade the firmware Try using the following settings IP Addres...

Страница 66: ...from the shares you have created For more information on how to map network drives refer to Windows Help or your Windows user manual What kind of file system can I use with the Router The Router supp...

Страница 67: ...hernet port Does the Router support IPX or AppleTalk No TCP IP is the only protocol standard for the Internet and has become the global standard for communications IPX a NetWare communications protoco...

Страница 68: ...o the Router from your ISP Can multiple gamers on the LAN get on one game server and play simultaneously with just one public IP address It depends on which network game or what kind of game server yo...

Страница 69: ...h 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 Router What can I do You may have to remove the proxy settings on yo...

Страница 70: ...or not the application is designed to be used over a network Consult the application s documentation to determine if it supports operation over a network What is the IEEE 802 11g standard It is one of...

Страница 71: ...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 nod...

Страница 72: ...narrowband carrier that changes frequency in a pattern that is known to both transmitter and receiver Properly synchronized the net effect is to maintain a single logical channel To an unintended rece...

Страница 73: ...your environment You may also try using different channels as this may eliminate interference affecting only one channel I have excellent signal strength but I cannot see my network Wireless security...

Страница 74: ...n keys periodically For information on implementing these security features refer to Chapter 6 Configuring the Wireless G Media Storage Link Router Security Threats Facing Wireless Networks Wireless n...

Страница 75: ...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...

Страница 76: ...rt number of the RADIUS server Then enter the key shared between the Router and its RADIUS server Then enter a Key Renewal Timeout period which instructs the Router or other device how often it should...

Страница 77: ...wnload the firmware from Linksys s website at www linksys com 2 Extract the firmware file on your computer 3 Open the Router s Web based Utility and click the Administration tab 4 Click Firmware Upgra...

Страница 78: ...nstructions or protocol all PCs follow to communicate over a network This is true for wireless networks as well Your PCs will not be able to utilize wireless networking without having TCP IP enabled W...

Страница 79: ...t the Ethernet adapter you have connected to the Router via a CAT 5 Ethernet network cable See Figure E 1 3 Write down the Adapter Address as shown on your computer screen see Figure E 2 This is the M...

Страница 80: ...the Ethernet adapter s IP address as 192 168 1 100 Your computer may show something different For the Router s Web based Utility For wireless MAC filtering enter the 12 digit MAC address in this forma...

Страница 81: ...art a device and cause it to start executing instructions Broadband An always on fast Internet connection Browser An application program that provides a way to look at and interact with all the inform...

Страница 82: ...twork Ethernet IEEE standard network protocol that specifies how data is placed on and retrieved from a common transmission medium Firewall A set of related programs located at a network gateway serve...

Страница 83: ...sharing storage and or transmission between users Packet A unit of data sent over a network Passphrase Used much like a password a passphrase simplifies the WEP encryption process by automatically ge...

Страница 84: ...reless network s name Static IP Address A fixed address assigned to a computer or device that is connected to a network Static Routing Forwarding data in a network via a fixed path Subnet Mask An addr...

Страница 85: ...tor The address of a file located on the Internet VPN Virtual Private Network A security measure to protect data as it leaves one network and goes to another over the Internet WAN Wide Area Network Th...

Страница 86: ...et Power USB Buttons SecureEasySetup Reset Cabling Type CAT 5 USB 2 0 LEDs Power USB DMZ Wireless G Ethernet 1 4 Internet SecureEasySetup of Antennas 1 RF Pwr EIRP in dBm 18 dBm Antenna Gain in dBi 2d...

Страница 87: ...x G Specifications Wireless G Media Storage Link Router with SpeedBooster Operating Temp 0 40 C 32 104 F Storage Temp 20 60 C 4 140 F Operating Humidity 10 85 Non Condensing Storage Humidity 5 90 Non...

Страница 88: ...PRESENTATIONS AND WARRANTIES INCLUDING ANY IMPLIED WARRANTY OF NON INFRINGEMENT ARE DISCLAIMED Some jurisdictions do not allow limitations on how long an implied warranty lasts so the above limitation...

Страница 89: ...rference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment or devices Connect the equipment to an outlet other than the...

Страница 90: ...roducts Covered by EU Directive 2002 96 EC on Waste Electric and Electronic Equipment WEEE This document contains important information for users with regards to the proper disposal and recycling of L...

Страница 91: ...84 Appendix I Regulatory Information Wireless G Media Storage Link Router with SpeedBooster...

Страница 92: ...85 Appendix I Regulatory Information Wireless G Media Storage Link Router with SpeedBooster...

Страница 93: ...86 Appendix I Regulatory Information Wireless G Media Storage Link Router with SpeedBooster...

Страница 94: ...87 Appendix I Regulatory Information Dual Band Wireless Access Point For more information visit www linksys com...

Страница 95: ...e about networking with Linksys products Give our advice line a call at 800 546 5797 LINKSYS Or fax your request in to 949 823 3002 If you experience problems with any Linksys product you can call us...

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