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Firewall

■

Check the

Get IP by DHCP

check box if you want to obtain the IP

information from a DHCP Server on the network.

With this check box enabled, you can click

Release

to release the WAN

IP Address for the Router, or click

Renew

to renew the current WAN IP

Address, using DHCP.

■

Fill in the

Initial IP Address, Initial Subnet Mask

and

Initial Gateway

fields if your ISP has provided you with these settings. Alternatively, if
the L2TP server is located in your DSL modem, click

Suggest

to select

an IP address on the same subnet as the L2TP server.

Check all of your settings, and then click

Apply

Firewall

On the main frame of the

Firewall

setup screen is a menu with six tabs:

Virtual Servers

Special Applications

PCs Privileges

URL Filter

Content

Filter

and

SPI

Virtual Servers

Selecting the

Firewall

option on the main menu displays the Virtual

Servers setup screen. (

Figure 52

)

Virtual DMZ

Figure 52

Virtual Servers Screen

DMZ (De-Militarized Zone) Host is a computer without the protection of
the firewall. This feature allows a single computer to be exposed to
unrestricted 2-way communication from outside of your network. This

Содержание 3CRWE554G72T - OfficeConnect Wireless 11g Cable/DSL...

Страница 1: ...http www 3com com Part No DUA0554 TAAA02 Published November 2004 OfficeConnect Wireless 11g Cable DSL Router User Guide 3CRWE554G72T 3CRWE554G72TU...

Страница 2: ...ion contained in or delivered to you in conjunction with this User Guide Unless otherwise indicated 3Com registered trademarks are registered in the United States and may or may not be registered in o...

Страница 3: ...ntents 13 Minimum System and Component Requirements 14 Front Panel 14 Rear Panel 16 2 HARDWARE INSTALLATION Introduction 19 Safety Information 19 Positioning the Router 19 Using the Rubber Feet 20 Sta...

Страница 4: ...ummary 42 5 ROUTER CONFIGURATION Navigating Through the Router Configuration Pages 45 Main Menu 45 Option Tabs 46 Welcome Screen 46 Notice Board 46 Password 47 Wizard 48 LAN Settings 48 Unit Configura...

Страница 5: ...DDNS 94 Security 96 Status and Logs 98 Status 98 Usage 99 Logs 100 Support Feedback 100 Support 100 Feedback 101 6 TROUBLESHOOTING Basic Connection Checks 103 Browsing to the Router Configuration Scre...

Страница 6: ...Network 113 IP Addresses and Subnet Masks 113 How does a Device Obtain an IP Address and Subnet Mask 115 DHCP Addressing 115 Static Addressing 115 Auto IP Addressing 115 C TECHNICAL SPECIFICATIONS D...

Страница 7: ...e note is shipped with the OfficeConnect Wireless 11g Cable DSL Router and contains information that differs from the information in this guide follow the information in the release note Most user gui...

Страница 8: ...aution Information that alerts you to potential loss of data or potential damage to an application system or device Warning Information that alerts you to potential personal injury Table 2 Text Conven...

Страница 9: ...address for technical support questions For information about contacting Technical Support please refer to the Support and Safety Information sheet Related Documentation In addition to this guide each...

Страница 10: ...10 ABOUT THIS GUIDE...

Страница 11: ...in your office connect them all to a single Internet outlet and harness the combined power of all of your computers OfficeConnect Wireless 11g Cable DSL Router The OfficeConnect Wireless 11g Cable DSL...

Страница 12: ...your network Figure 2 it becomes your connection to the Internet Connections can be made directly to the Router or to an OfficeConnect Switch or Hub expanding the number of computers you can have in y...

Страница 13: ...rver to enable remote access to Web FTP and other services on your network Security Firewall protection against Internet hacker attacks and encryption to protect wireless network traffic Filtered acce...

Страница 14: ...A cable modem or DSL modem with an Ethernet port RJ 45 connector An active Internet access account A Web browser that supports JavaScript such as Netscape 4 7 or higher Internet Explorer 5 0 or highe...

Страница 15: ...ur network from the Internet Continuously on A fault has been detected with your Router during the start up process Refer to Chapter 6 Troubleshooting 2 Power LED Green Indicates that the Router is po...

Страница 16: ...uter Rear Panel 6 Wireless Antennae The antennae on the product should be placed in a V position when initially installed CAUTION Do not force the antennae beyond their mechanical stops Rotating the a...

Страница 17: ...able used 10 Four 10 100 LAN ports Using suitable RJ 45 cable you can connect your Router to a computer or to any other piece of equipment that has an Ethernet connection for example a hub or a switch...

Страница 18: ...18 CHAPTER 1 INTRODUCING THE ROUTER...

Страница 19: ...es importantes de s curit avant de mettre en route Positioning the Router You should place the Router in a location that is conveniently located for connection to the cable or DSL modem that will be u...

Страница 20: ...e Router If you are stacking your Router with other OfficeConnect units install the Router at the top of the stack Refer to the documentation supplied with your other OfficeConnect unit for details on...

Страница 21: ...tion If you have a DSL connection and your ISP allocates IP information dynamically over PPPoE you need a User Name and Password You only need a PPPoE Service Name if your ISP requires one Do not ente...

Страница 22: ...power up the Router 1 Plug the power adapter into the power adapter socket located on the back panel of the Router 2 Plug the power adapter into a standard electrical wall socket Connecting the Router...

Страница 23: ...e Router using a Category 5 twisted pair cable Check that the corresponding LAN status LED on the Router lights You have now completed the hardware installation of your Router Next you need to set up...

Страница 24: ...24 CHAPTER 2 HARDWARE INSTALLATION To communicate wirelessly with your Router your wireless NIC should be set as follows Encryption none Service Area Name SSID 3Com Channel 11...

Страница 25: ...er CD ROM to detect and configure your Router Refer to Appendix A for information on using the Discovery program Obtaining an IP Address Automatically Refer to the section below which relates to your...

Страница 26: ...Area Properties Screen 6 Ensure that the options Obtain an IP Address automatically and Obtain DNS server address automatically are both selected as shown in Figure 7 Click OK Figure 7 Internet Proto...

Страница 27: ...tart your computer Windows 95 98 ME If you are using a Windows 95 98 ME computer use the following procedure to change your TCP IP settings 1 From the Windows Start Menu select Settings Control Panel...

Страница 28: ...reen similar to Figure 8 should be displayed 4 Select the Never Dial a Connection option Figure 8 Internet Properties Screen You may wish to remove the PPPoE client software from your computer to free...

Страница 29: ...that you have at least one computer connected to the Router Refer to Chapter 2 for details on how to do this 2 Launch your Web browser on the computer 3 Enter the following URL in the location or add...

Страница 30: ...sword is correct the Country Selection screen will appear Select the country you wish to configure the Router for then click Apply Figure 11 If your purchased your Router in the United States you do n...

Страница 31: ...screen will appear Figure 12 Select the Wizard tab and click Wizard or If your Router has not been configured before the Wizard will launch automatically refer to Figure 13 7 Click Next 8 You will be...

Страница 32: ...nge Administration Password screen Figure 14 appears type the Old Password then a new password in both the New Password and Confirm Password boxes 3Com recommends entering a new password when setting...

Страница 33: ...time zone from the pull down menu check the daylight savings option if required and then click Next The Daylight Savings option advances the system clock by one hour It does not cause the system cloc...

Страница 34: ...static IP address see page 36 PPTP is required some DSL users in Europe see page 37 L2TP is required some DSL users in Europe see page 39 and click Next For further information on selecting a mode see...

Страница 35: ...his is the amount of time without Internet activity that you want to allow before the Router ends the PPPoE session 6 Check all of your settings and then click Next Refer to LAN Settings on page 40 fo...

Страница 36: ...one that was previously connected directly to the cable modem choose Yes please clone the MAC address from the PC I m currently using Static IP Mode To setup the Router for use with a static IP addre...

Страница 37: ...with a PPTP connection use the following procedure 1 Enter your PPTP server address in the PPTP Server Address text box 2 Enter your PPTP user name in the PPTP User Name text box 3 Enter your PPTP pas...

Страница 38: ...ion 7 Check all of your settings and then click Next Figure 22 displays Figure 22 PPTP IP Settings 8 IP settings must be used when establishing a PPTP connection Fill in the Initial IP Address and the...

Страница 39: ...y DNS Address and Secondary DNS address Your ISP may provide you with primary and secondary DNS addresses they have been provided enter the addresses in the appropriate text boxes If not leave 0 0 0 0...

Страница 40: ...on DHCP server that can automatically configure the TCP IP settings of every computer on your network Figure 25 DHCP Server Setup Screen To activate the DHCP Server option select Enable the DHCP serve...

Страница 41: ...rongly recommends that you change the SSID to something other than the default Click Next when you have finished If you are configuring the Router from a wireless computer any changes you make to the...

Страница 42: ...clients Summary Figure 27 Configuration Summary Screen When you complete the Setup Wizard a configuration summary will display 3Com recommends that you verify the configuration information of the Rout...

Страница 43: ...options you may need to reconfigure the computer you are using in order to make contact with the Router again Your Router is now configured and ready for use For information on improving your Wireles...

Страница 44: ...44 CHAPTER 4 RUNNING THE SETUP WIZARD...

Страница 45: ...part of the screen Welcome displays the firmware version of the Router allows you to change your password and launch the Wizard LAN Settings allows you to configure IP address and subnet mask informa...

Страница 46: ...provide sub sections which are accessed through the use of tabs see Figure 29 for example To access a sub section simply click on the required tab Getting Help On every screen a Help button is availab...

Страница 47: ...change the password to prevent unauthorized access to the Administration System To do this 1 Enter the current password in the Old Password field 2 Enter the new password in the New Password field 3...

Страница 48: ...31 Wizard Screen Click WIZARD to launch the configuration wizard Refer to Chapter 4 for information on how to run the wizard LAN Settings The LAN Settings menu provides the following options Unit Con...

Страница 49: ...rnatively you can change the address range by changing the last digit s of the IP Pool Start Address or the IP Pool End Address or both 4 If you use 3Com NBX telephones enter the IP address of the NBX...

Страница 50: ...an association Clear the check box to remove the fixed association As you connect more devices the client list will grow to a maximum number of 253 clients The release button allows the lease time fo...

Страница 51: ...apping in the MAC Address of client box The MAC Address must be entered as 6 hexadecimal pairs for example 12 34 56 78 90 ab 3 Click Apply to add the Fixed Mapping or Close to close the window without...

Страница 52: ...r nearby is using the same Channel as you there will be a reduction in the performance of your network If this seems to be the case you should select a different channel number Usually the Wireless co...

Страница 53: ...at the PC is included in the authorized Wireless PCs list if Connection Control is enabled See page 60 Enable Broadcast SSID Disable this feature after you have installed your wireless network to impr...

Страница 54: ...ed Access WPA is a 256 bit encryption method with keys that change over time WEP Wireless Equivalent Privacy WEP is a 64 bit or 128 bit encryption method with user configurable fixed keys WPA provides...

Страница 55: ...as a 256 bit series of hexadecimal digits refer to Using Manual Pre Shared Key on page 56 To set up the pre shared key manually as a pass phrase refer to Using Pre Shared Passphrase on page 57 Using...

Страница 56: ...lick Apply to generate the key Using Manual Pre Shared Key Figure 37 WPA Encryption Screen Manual Pre shared Key To set up Manual Pre shared Key as the WPA Type 1 Select Manual Pre shared Key from the...

Страница 57: ...down box The screen shown in Figure 38 displays 2 Enter a phrase of between 8 and 63 characters in length in the Passphrase field This passphrase will be used to generate a 256 bit key 3 Click Apply t...

Страница 58: ...t Encryption Keys Screen WEP Configuration A Key is a hexadecimal 0 9 A F number used to encrypt and decrypt the data There can be up to 4 keys and each key can be as long as 26 digits The Router also...

Страница 59: ...contain any alphanumeric characters and must be between 6 and 30 characters long A single string will automatically generate 4 unique keys for 64 or 128 bit WEP ASCII This method is supported by some...

Страница 60: ...on Control Screen A higher level of security can be achieved for your wireless network if in addition to using encryption you specify that only certain wireless computers can connect to the Router By...

Страница 61: ...will contain the MAC addresses of all Wireless PCs that are in range currently operating and have the same Service Area Name SSID channel and encryption settings as the Router You will find this scree...

Страница 62: ...y the MAC address 3 Press Apply to accept the changes Figure 43 MAC Address Table Click Close to discard all changes Deleting a MAC Address The connection rights for a Wireless PC listed in the table...

Страница 63: ...Wireless LAN the client list will grow to a maximum of 32 the maximum number of wireless devices that the Router can support WDS Figure 45 WDS Screen The Router supports the Wireless Distribution Syst...

Страница 64: ...ss Settings option Encryption settings from the Router This is configured on the Encryption tab under the Wireless Settings option Profile Name This is used to identify the profile once it has been im...

Страница 65: ...location method used by your ISP There are four different ways that ISPs can allocate IP information as described below 1 Static IP Address DSL or Cable The ISP provides the IP addressing information...

Страница 66: ...Internet Service Providers ISPs Check with your ISP to make sure L2TP is supported before selecting this option To configure the Router you will need to know the following User name Password L2TP Serv...

Страница 67: ...mation in this screen should be provided to you by your ISP If the information is already entered your ISP has pre configured your Router and you should go to step 7 3 Enter your subnet mask in the Su...

Страница 68: ...d Figure 48 2 Enter your Primary DNS Address and Secondary DNS address Your ISP may provide you with primary and secondary DNS addresses If they have been provided enter the addresses in the appropria...

Страница 69: ...and click Apply PPP over Ethernet Figure 49 PPPoE Setup Screen To setup the Router for use with a PPP over Ethernet connection use the following procedure 1 Select PPP over Ethernet in the IP Allocat...

Страница 70: ...quires this 7 Enter the MTU value supplied by your ISP If you do not know this leave it at the default value The default is 1454 8 Select an idle time from the Maximum Idle Time drop down list This va...

Страница 71: ...it at the default value The default is 1460 7 Select an idle time from the Maximum Idle Time drop down list This value will correspond to the amount of idle time no Internet activity that will pass be...

Страница 72: ...ox 5 Enter your Primary DNS Address and Secondary DNS Address Your ISP may provide you with primary and secondary DNS addresses If they have been provided enter the addresses in the appropriate text b...

Страница 73: ...modem click Suggest to select an IP address on the same subnet as the L2TP server Check all of your settings and then click Apply Firewall On the main frame of the Firewall setup screen is a menu wit...

Страница 74: ...FTP server allowing others outside of your office network to download files of your choosing Or if you have created a Web site you can configure one of your computers as a Web server so that others c...

Страница 75: ...ivated Special Applications Figure 55 Special Applications Screen Select Special Apps tab to display Authorized Application setup screen Figure 55 Some software applications require special or multipl...

Страница 76: ...igure 56 Figure 56 Special Application Settings Screen 2 Either Select the application from the Choose Application drop down list or Select Other to specify an Application Name for the special applica...

Страница 77: ...ion at any one time PC Privileges Figure 58 PC Privileges Screen Select PC Privileges to display the PC Privilege setup screen Figure 58 Access from the local network to the Internet can be controlled...

Страница 78: ...llow all other services or allow all other services with exceptions or Block all other services or block all other services with exceptions To do this select Allow or Block from the drop down menu and...

Страница 79: ...ividual PCs Setup Screen 3 Enter the last digit s of the IP address of the computer in the PC s IP Address text box 4 If required check the Bypass URL Filter check box to override the URL Filter setti...

Страница 80: ...RL Filter has three settings Disabled Users can browse all Web sites None will be filtered Deny List Users can browse all Web sites apart from those sites listed in the deny list and those whose URLs...

Страница 81: ...dsite com the keyword badsite com would block searches that mentioned badsite com in their domain name for example www notabadsite com To filter a generic keyword enter it into one of the fields You s...

Страница 82: ...ally by entering this goodsite com in one field and that goodsite com in another or Allow them by entering the keyword goodsite com into one of the fields This will allow all URLs containing the strin...

Страница 83: ...lter You can subscribe to the 3Com Content Filter Service which enables you to block or allow the URLs of a number of pre defined categories The Router comes with a 14 day free trial of the 3Com Conte...

Страница 84: ...milliseconds 3 seconds 5 Select Allow or Deny for each displayed category as required Click Apply to save the settings SPI Stateful Packet Inspection SPI inspects and if required blocks packets at the...

Страница 85: ...65 SPI Screen lower section Intrusion Detection Feature The Intrusion Detection feature limits access for incoming traffic at the WAN ports 2 Check the Enable SPI and Anti DoS firewall protection chec...

Страница 86: ...the Fragmentation half open wait text box enter the length of time in seconds that you want an unassembled packet to remain active before the Router drops it The default is 10 seconds 10 In the TCP SY...

Страница 87: ...mber of incomplete sessions allowed from the same host The default is 10 sessions 20 In the Incomplete TCP UDP sessions detect sensitive time period text box enter the length of time that must elapse...

Страница 88: ...nformation will be lost but the log files will be erased This function may be of use if you are experiencing problems and you wish to re establish your Internet connection Any network users who are cu...

Страница 89: ...rrect time from NTP servers on the Internet and sets its system clock accordingly The Daylight Savings option merely advances the system clock by one hour It does not cause the system clock to be upda...

Страница 90: ...cation with the Router Upgrade Figure 69 Upgrade Screen The Upgrade facility allows you to install on the Router any new releases of system software that 3Com may make available To install new softwar...

Страница 91: ...rom the main menu displays the following five tabs in your Web browser window Static Route RIP Routing Table DDNS and Security Static Route The Router supports static route functionality Select the St...

Страница 92: ...n on one RIP enabled device and have that routing information replicated to all RIP enabled devices on the network LAN and WAN interfaces can be configured independently of each other Select the RIP t...

Страница 93: ...te messages 2 Select either 1 for RIPv1 or 2 for RIPv2 from the Version drop down list 3Com recommends that you use RIPv1 if there is any RIP enabled device on your network that does not support RIPv2...

Страница 94: ...he format shown in Figure 73 Figure 73 Routing Table screen DDNS Dynamic Domain Name Server DDNS enables you to map a static domain name to a dynamic IP address The Router supports two DDNS providers...

Страница 95: ...me text box enter the domain name 2 In the Username E mail text box enter the account name 3 In the Key text box enter the account password 4 In the Refresh Time box enter how often you want the servi...

Страница 96: ...ndly and have no intention of breaking into stealing from or damaging your network However there are hackers who may try to break into your network The options in the Security tab features help you to...

Страница 97: ...nfiguration If you have a single IP address and your turn NAT off the computers on your network will not be able to access the Internet Other problems may also occur Check on the check box to disable...

Страница 98: ...found at the bottom of the screen See Figure 75 Status and Logs Selecting Status and Logs from the main menu displays the Status Usage and Logs screens in your Web browser window Status The Status sc...

Страница 99: ...wer section Usage Usage displays an approximate count of the traffic since the Router was last reset Figure 78 The counts are approximate and should be used as a guide only Contact your ISP for accura...

Страница 100: ...s logged by the Router Figure 79 Logs Screen You may be asked to refer to the information on the Status and Logs screens if you contact your supplier for technical support Support Feedback Selecting S...

Страница 101: ...f Internet links that provide information and support concerning the Router Figure 80 Feedback Figure 81 Feedback Screen Selecting the Feedback option displays the Feedback screen and allows you to pr...

Страница 102: ...102 CHAPTER 5 ROUTER CONFIGURATION...

Страница 103: ...connected your Router and computers together but cannot browse to the Router configuration screens check the following Confirm that the physical connection between your computer and the Router is OK a...

Страница 104: ...ion screens but cannot access sites on the Internet check the following Confirm that the physical connection between the Router and the cable DSL modem is OK and that the link status LEDs on both Rout...

Страница 105: ...flash as the Router starts up and after approximately 30 seconds will start to flash more slowly typically 2 seconds on 2 seconds off Once the Alert LED has started to flash slowly remove power from t...

Страница 106: ...enna vertically and one horizontally to improve coverage Additionally consider moving the wireless computer closer to the Router to confirm that the building structure or fittings are not adversely af...

Страница 107: ...wer LED or Power Adapter OK LED Not Lit Check that your Router is receiving power by looking at the status of the Power LED on the front panel and the Power Adapter OK LED on the rear panel If both LE...

Страница 108: ...ng from Corrupted Software below If this does not fix the problem contact your supplier for further advice During normal operation you may notice the Alert LED lighting briefly from time to time This...

Страница 109: ...omputer and re apply power to the Router 4 Using the Web browser on the computer enter the following URL in the location bar http 192 168 1 1 This will connect you to the Microcode Recovery utility in...

Страница 110: ...ore information or visit http www 3com com Does the Router support virtual private networks VPNs The Router supports VPN passthrough which allows VPN clients on the LAN to communicate with VPN hosts o...

Страница 111: ...n 95 98 2000 Me NT 1 Insert the Router CD ROM in the CD ROM drive on your computer A menu will appear select Router Discovery Discovery will find the Router even if it is unconfigured or misconfigured...

Страница 112: ...Router Screen 3 Figure 84 shows an example Discovered Devices screen Highlight the Cable DSL Router by clicking on it and press Next Figure 84 Discovery Finish Screen 4 Click on Finish to launch a we...

Страница 113: ...ice over the network the Router must be correctly configured with the following IP information An IP address A Subnet Mask IP Addresses and Subnet Masks Each device on your network must have a unique...

Страница 114: ...e 192 168 100 identifies the network on which the device resides Part two 8 identifies the device within the network This type of IP Address operates on a subnet mask of 255 255 255 0 See Table 4 for...

Страница 115: ...gets reallocated once you disconnect from the network DHCP will work on any client Operating System such as Windows 95 Windows 98 or Windows NT 4 0 Also using DHCP means that the same IP address and...

Страница 116: ...x with a subnet mask of 255 255 0 0 If two devices allocate themselves the same address the conflict is detected and one of the devices allocates itself a new address Automatic IP addressing support w...

Страница 117: ...ion rate 54Mbps automatic fallback to 48 36 24 18 12 or 6 Mbps Maximum channels 14 Range up to 304 8m 1000ft Frequency US Canada Europe 2 400 2 4835 GHz Sensitivity 6 12 18 24 36 48 Mbps 85 dBm 54 Mbp...

Страница 118: ...ions Width 220 mm 8 7 in Depth 135 mm 5 3 in Height 24 mm 1 in Weight Approximately 500 g 1 1 lbs Standards Functional ISO 8802 3 IEEE 802 3 IEEE 802 11b 802 11g Wi Fi Safety UL60950 CSA 22 2 60950 IE...

Страница 119: ...XP Mac OS 8 5 or higher Unix Ethernet Performance The Router complies to the IEEE 802 3i u and x specifications Wireless Performance The Router has been designed to conform to the Wi Fi interoperabili...

Страница 120: ...120 APPENDIX C TECHNICAL SPECIFICATIONS...

Страница 121: ...ARNING Only stack the Router with other OfficeConnect units WARNING To ensure compliance with international safety standards only use the power adapter that is supplied with the unit WARNING The socke...

Страница 122: ...bei den zust ndigen Stellen ob die Verwendung von Funkfrequenz in dem Bereich in dem der Bluetooth Access Point eingesetzt werden soll erlaubt ist VORSICHT Bei der Installation und beim Ausbau des Ge...

Страница 123: ...ment toutes les consignes Nous vous demandons de lire attentivement les consignes suivantes de s curit avant d installer ou de retirer l appareil AVERTISSEMENT La Router fournit et utilise de l nergie...

Страница 124: ...isateurs ou entretenues par les utilisateurs l int rieur du moyeu Si vous avez un probl me physique avec le moyeu qui ne peut pas tre r solu avec les actions de la r solution des probl mes dans ce gui...

Страница 125: ...otices in the same form as on the original You agree not to remove or deface any portion of any legend provided on any licensed program or documentation delivered to you under this Agreement ASSIGNMEN...

Страница 126: ...ortions in any form LIMITED WARRANTIES AND LIMITATION OF LIABILITY All warranties and limitations of liability applicable to the Software are as stated on the Limited Warranty Card or in the product m...

Страница 127: ...ComCast Cox Excite Rogers Shaw Insight Videotron PPPoE DSL Usually special software installed on PC MacPOET WinPOET EnterNet 300 The Router has this software built in and you can remove it from your P...

Страница 128: ...the Internet Settings page CableSpeed Cnet Direct Link Drizzle DSL Extreme Earthlink Wireless Fast Point Flashcom GTE WhirlWind Heavenet HSA Corp I 55 InterAccess LinkLine Mission Nauticom NAS Omitel...

Страница 129: ...to other wireless clients and which acts as a bridge between wireless clients and a wired network such as Ethernet Wireless clients can be moved anywhere within the coverage area of the access point a...

Страница 130: ...Fast Ethernet networks 100BASE TX and can transmit data up to speeds of 100 Mbps Category 5 cabling is better to use for network cabling than Category 3 because it supports both Ethernet 10 Mbps and F...

Страница 131: ...data at high speeds Encryption A method for providing a level of security to wireless data transmissions The OfficeConnect Cable DSL Router and Wireless Cable DSL Router offer a choice of encryption...

Страница 132: ...ns for TCP IP networks In the network management area this group is responsible for the development of the SNMP protocol Infrastructure mode Infrastructure mode is the wireless configuration supported...

Страница 133: ...twork MAC addresses are 6 bytes long NAT Network Address Translation NAT enables all the computers on your network to share one IP address The NAT capability of the Router allows you to access the Int...

Страница 134: ...ough the firewall This way un requested attempts to access the network will be denied SSID Service Set Identifier Some vendors of wireless products use SSID interchangeably with ESSID Subnet Address A...

Страница 135: ...RL Filter is a feature of a firewall that allows it to stop its clients form browsing inappropriate Web sites WAN Wide Area Network A network that connects computers located in geographically separate...

Страница 136: ...etwork Wireless LAN Service Area Another term for ESSID Extended Service Set Identifier Wizard A Windows application that automates a procedure such as installation or configuration WLAN Wireless Loca...

Страница 137: ...11 DMZ 73 DNS 26 37 39 68 69 71 72 primary 37 39 67 secondary 37 39 67 DoS attacks 84 DOS detect criteria configuring 87 Dynamic 65 Dynamic IP Address 35 65 73 dynamic IP address 65 E encryption 54 WE...

Страница 138: ...I 84 Static Addressing 115 Static IP Address 65 67 static IP address 65 static route 91 Status 98 Subnet Mask 36 40 113 Summary 42 Support Information 100 Support Links 101 T TCP IP 25 27 40 113 Techn...

Страница 139: ...nfigured Table 5 Channels The channels available for use in France depend on the region in which you are located Channels Country 1 13 Australia Austria Bahrain Belarus Belgium Chile China Costa Rica...

Страница 140: ...measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the recei...

Страница 141: ...ommission helpful How to Identify and Resolve Radio TV Interference Problems This booklet is available from the U S Government Printing Office Washington DC 20402 Stock No 004 000 00345 4 In order to...

Страница 142: ...A Statement This Class B digital apparatus meets all requirements of the Canadian Interference Causing Equipment Regulations Cet appareil num rique de la classe B respecte toutes les exigences du R gl...

Страница 143: ...censing Industry Canada Class B This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus as set out in the interference causing equipment standard ent...

Страница 144: ...144...

Страница 145: ......

Страница 146: ...vices visit our World Wide Web site at www 3com com All specifications are subject to change without notice Copyright 2004 3Com Corporation All rights reserved 3Com and OfficeConnect are registered tr...

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