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System Tools

119

Traceroute

Traceroute is the program that shows you the route over the network 
between two systems, listing all the intermediate routers a connection 
must pass through to get to its destination. It can help you determine 
why your connections to a given server might be poor, and can often help 
you figure out where exactly the problem is. It also shows you how 
systems are connected to each other, letting you see how your ISP 
connects to the Internet as well as how the target system is connected.

Figure 101   

Traceroute Screen

1

Enter the IP address or domain name in the 

IP Address or Domain Name

 

field, and click 

Traceroute

. 

2

The Router keeps a log of the traceroute test, click 

Clear Log

 to delete the 

records. 

Содержание 3CRWER300-73

Страница 1: ...http www 3Com com Part No 10016790 Rev AA Published July 2008 Wireless 11n Cable DSL Firewall Router User Guide WL 602 3CRWER300 73 ...

Страница 2: ...ram or documentation 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 other countries 3Com and the 3Com logo are registered trademarks of 3Com Corporation Intel and Pentium are registered trademarks of Intel Corporation Microsoft MS DOS Windows and Windo...

Страница 3: ...inimum System and Component Requirements 14 Physical Features 14 INSTALLING THE ROUTER Introduction 19 Safety Information 19 Positioning the Router 19 Using the Rubber Feet 20 Wall Mounting 20 Mounting Instructions for Cement Walls 20 Mounting Instructions for Wood Walls 21 Powering Up the Router 21 Connecting the Router 21 SETTING UP YOUR COMPUTERS Obtaining an IP Address Automatically 23 Windows...

Страница 4: ...Change Password 34 Wizard Time and Time Zone 35 Wizard Connection Type 36 Setup Wizard LAN Settings 42 Wizard Wireless Setting 43 Wizard Configuration Summary 49 CONFIGURING THE ROUTER Navigating Through the Router Configuration screens 51 Main Menu 51 Welcome Screen 51 Status 51 LAN Settings 52 LAN Settings 52 DHCP Clients List 53 Wireless Settings 55 Configuration 56 Encryption 57 WPS 62 Connect...

Страница 5: ...lter 91 Advanced 92 Security 92 VLAN 95 Static Routes 97 RIP 99 DDNS 101 SNMP 102 Syslog 103 Proxy ARP 104 QoS Settings 105 Traffic mapping 106 VPN 108 System Tools 115 Restart Router 115 Configuration 115 Upgrade 116 Time Zone 117 Ping 118 Traceroute 119 DNS Lookup 120 Diagnostic 120 Status and Logs 121 Status 121 Routing Table 122 Logs 122 Traffic Statistics 123 ...

Страница 6: ...Networking 128 Recovering from Corrupted Software 130 Power Adapter 130 Frequently Asked Questions 132 IP ADDRESSING The Internet Protocol Suite 133 Managing the Router over the Network 133 IP Addresses and Subnet Masks 133 How does a Device Obtain an IP Address and Subnet Mask 135 DHCP Addressing 135 Static Addressing 135 Auto IP Addressing 135 TECHNICAL SPECIFICATIONS 3Com Wireless 11n Cable DSL...

Страница 7: ...R YOUR 3COM PRODUCTS Register Your Product to Gain Service Benefits 148 Solve Problems Online 148 Purchase Extended Warranty and Professional Services 148 Access Software Downloads 149 Contact Us 149 Telephone Technical Support and Repair 149 GLOSSARY REGULATORY NOTICES INDEX ...

Страница 8: ......

Страница 9: ... with the 3Com Wireless 11n Cable DSL Firewall Router and contains information that differs from the information in this guide follow the information in the release note Most user guides and release notes are available in Adobe Acrobat Reader Portable Document Format PDF on the 3Com World Wide Web site http www 3Com com Naming Convention Throughout this guide the 3Com Wireless 11n Cable DSL Firewa...

Страница 10: ...njury Table 2 Text Conventions Convention Description The words enter and type When you see the word enter in this guide you must type something and then press Return or Enter Do not press Return or Enter when an instruction simply says type Keyboard key names If you must press two or more keys simultaneously the key names are linked with a plus sign Example Press Ctrl Alt Del Words in italics Ita...

Страница 11: ...ocument title Document part number on the title page Page number if appropriate Example 3Com Wireless 11n Cable DSL Firewall Router User Guide Part Number 10016790 Rev AA Page 24 Do not use this e mail address for technical support questions For information about contacting Technical Support please refer to Appendix E Related Documentation In addition to this guide each Router document set include...

Страница 12: ...10 ABOUT THIS GUIDE ...

Страница 13: ...igned to provide a cost effective means of sharing a single broadband Internet connection amongst several wired and wireless computers The Router also provides protection in the form of an electronic firewall preventing anyone outside of your network from seeing your files or damaging your computers The Router can also prevent your users from accessing Web sites which you find unsuitable Figure 1 ...

Страница 14: ...uter When you use the Router in your network Figure 2 it becomes your connection to the Internet Connections can be made directly to the Router or to a 3Com Switch expanding the number of computers you can have in your network Figure 2 Example Network Using a Firewall Router ...

Страница 15: ... Acts as a Virtual server 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 Package Contents The Router kit includes the following items One 3Com Wireless 11n Cable DSL Firewall Router One power adapter for use with the Router Four rubber feet One Ethernet cable One C...

Страница 16: ...ach computer to be connected to the four port switch on your Router An 802 11b 802 11g or 802 11n draft2 0 compliant wireless NIC An active ADSL or Cable subscription and connection Note that your Cable or ADSL modem needs to have an Ethernet interface A Web browser that supports JavaScript such as Netscape 4 7 or higher Internet Explorer 6 0 or higher Mozilla 1 2 1 or higher or Apple s Safari Phy...

Страница 17: ... physical connection is on Fast flash means WAN port traffic activity 4 Wireless LAN WLAN Status LED Blue If the LED is on it indicates that wireless networking is enabled If the LED is flashing the link is OK and data is being transmitted or received If the LED is off the Wireless LAN has been disabled in the Router or there is a problem Refer to Chapter 6 Troubleshooting 5 LAN Status LEDs 4 indi...

Страница 18: ...ne client should be connected to the Router using WPS at any one time Attempting to connect two or more clients at once may result in connection failures When the WPS button is pressed or WPS is initiated using the PIN method in the web interface the WPS LED will flash at a medium rate for up to 2 minutes to indicate that a WPS connection can be made When a connection attempt is underway the LED w...

Страница 19: ... Press this button for 3 seconds when making WPS setup Pushing the WPS button will automatically enable WPS Then initiate the WPS procedure on the wireless NIC within two minutes Refer to your wireless NIC s documentation on this procedure The wireless NIC will then be securely added to your wireless network 3 Ethernet Ports 4 ports Using suitable RJ 45 cables you can connect your Router to a comp...

Страница 20: ... for 3 seconds 6 Reset Button If you want to reset your Router to factory default settings or cannot access the web management interface for example due to a lost password then you may use this button Refer to Forgotten Password and Reset to Factory Defaults on page 127 for further details 7 Power Adapter Socket Only use the power adapter that is supplied with this Router Do not use any other adap...

Страница 21: ...z lire attentivement la section Consignes importantes de sécurité avant de mettre en route Positioning the Router You should place the Router in a location that is conveniently located for connection to external ADSL or Cable modem is centrally located to the wireless computers that will connect to the Router A suitable location might be on top of a high shelf or similar furniture to optimize wire...

Страница 22: ...e careful when you put 3COM Router on top of another unit if the unit underneath is hot this may impact the reliability of 3Com Router Wall Mounting There are two slots on the underside of the Router that can be used for wall mounting The Router must be mounted with the LEDs facing upwards When wall mounting the unit ensure it is within reach of the power outlet When wall mounting the unit ensure ...

Страница 23: ...r 2 Plug the power adapter into a standard electrical wall socket Connecting the Router To install your Router simply connect it to your DSL Cable modem and then connect the Router to a computer in order to be able to access the Internet Follow these simple steps 1 Using RJ 45 cable to connect the WAN port of the Router with the DSL Cable modem 2 Using RJ 45 cable to connect one PC with the LAN po...

Страница 24: ...essly with your Router your wireless NIC should be set as follows Encryption none SSID 3Com Channel 11 This following figure shows a typical network configuration for 3Com Wireless 11n Cable DSL Firewall Router Figure 5 Network Configuration for the Router ...

Страница 25: ...is follow the instructions in this chapter Obtaining an IP Address Automatically Windows 2000 If you are using a Windows 2000 based computer use the following procedure to change your TCP IP settings 1 From the Windows Start Menu select Settings Control Panel 2 Double click on Network and Dial Up Connections 3 Double click on Local Area Connection 4 Click on Properties 5 A screen similar to Figure...

Страница 26: ...l 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 Protocol TCP IP Properties Screen 7 Restart your computer ...

Страница 27: ...t Properties and click continue 5 A screen similar to Figure 8 should appear Select Internet Protocol Version 6 Version 4 TCP IPv6 v4 and click on Properties Figure 8 Local Area Connection Properties Screen 6 Ensure that the options Obtain an IPv6 v4 address automatically and Obtain DNS servers address automatically are both selected as shown in Figure 9 Click OK Figure 9 Internet Protocol Version...

Страница 28: ...ick on Properties 6 Ensure that the options Obtain an IP address automatically and Obtain DNS servers automatically are both selected Click OK 7 Restart your computer Macintosh If you are using a Macintosh computer use the following procedure to change your TCP IP settings 1 From the desktop select Apple Menu Control Panels and TCP IP 2 In the TCP IP control panel set Connect Via to Ethernet 3 In ...

Страница 29: ...een similar to Figure 10 should be displayed 4 Select the Never dial a connection option Figure 10 Internet Properties Screen You may want to remove the PPPoE client software from your computer to free resources as it is not required for use with the Router Disabling Web Proxy Ensure that you do not have a web proxy enabled on your computer Go to the Control Panel and click on Internet Options Sel...

Страница 30: ...28 CHAPTER 3 SETTING UP YOUR COMPUTERS ...

Страница 31: ...ition to the documentation the 3Com Detect Application To use 3Com Detect to connect to the Web interface of your Router do the following On the computer that is connected to your Router either directly or on a network that is on the same subnet insert the CD ROM into its CD drive If you have autorun enabled you will be presented with a menu showing the contents of the CD ROM Select the 3Com Detec...

Страница 32: ...on for a connected Router default or specifying an IP range Note that specifying a large range may take some time for the search to complete see Figure 12 and Figure 13 Figure 12 Discovery Screen search the same subnet Figure 13 Discovery Screen search IP range Once your Router has been located you will see the list see Figure 14 Select the Router to which you want to connect and click Open Your d...

Страница 33: ...plorer 6 0 or higher Mozilla 1 2 1 or higher or Apple s Safari To use the Setup Wizard 1 Ensure 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 address field of your browser http 192 168 1 1 Figure 15 The Login screen displays Figure 15 Web Browser Loc...

Страница 34: ...l appear see Figure 17 Please select the country form the drop down menu and click Apply 1 To comply with US FCC regulations operation for any country is limited to channels from 1 to 11 2 Customers outside of the US Canada or Taiwan can download the firmware from the 3Com website www 3com com which will enable operation on channels 12 13 You will be asked to verify your country before you can dow...

Страница 35: ...een configured previously the Welcome screen will appear Figure 18 There are three tabs Notice Board Password and Wizard Figure 18 Welcome Screen Go to the Notice Board tab to see the current software information To view the Web help click the Help button Go to the Password tab to change the password Figure 19 Go to the Wizard tab to do a quick setup of the Router Figure 20 ...

Страница 36: ...rd in the New Password field and enter it again in the Confirm New Password field 3 Enter the time period in Login Timeout to set a maximum period of time for which the login session is maintained during inactivity Default 10 minutes Wizard Change Password To ensure the security of your Router it is recommended that you choose a new password this should be a mix of letters and numbers and not easi...

Страница 37: ... and time 2 If you want to automatically synchronize the Router with a public time server check the Enable box in the Using Time Server NTP field 3 Select the time zone in the Set Time Zone drop down menu 4 Enter the time in the Synchronization Interval field 5 Select the desired servers from the Time Server drop down menu 6 Check the Enable box in the Daylight Savings field if daylight savings ap...

Страница 38: ...ation from your ISP ready Figure 22 Connection Type Screen Select a mode from the following Dynamic IP Using DHCP function see page 37 Static IP Using fixed IP see page 38 PPPoE PPP over Ethernet providing routing for multiple PCs see page 39 PPTP Point to Point Tunneling Protocol see page 40 L2TP Layer 2 Tunneling Protocol see page 41 and click Next For further information on selecting a mode see...

Страница 39: ...c IP connection use the following procedure Figure 23 Host Name Screen 1 Host name is a name that some Internet Service Providers require for connection to their system This entry is optional your Internet Service Provider should provide this information 2 Check all of your settings and then click Next The LAN Settings screen will then be displayed refer to Figure 28 ...

Страница 40: ...ter your Internet IP address in the IP address assigned by your Service Provider field 2 Enter the subnet mask in the Subnet Mask field 3 Enter the default gateway IP address in the Service Provider Gateway Address field 4 Enter the DNS address in the DNS Address field 5 If there is a secondary DNS enter the IP address in the Secondary DNS Address field 6 Check all of your settings and then click ...

Страница 41: ...ield is optional enter this information if your ISP requires it 5 Enter the MTU information the default is 1492 Do not change the MTU value unless specifically instructed by your ISP 6 Enter the maximum Idle Timeout for the Internet connection After this time has been exceeded the connection will be terminated Check the Auto Reconnect After Timeout box to automatically re establish the connection ...

Страница 42: ...information 2 Enter the User ID and Password required by your ISP 3 Retype the password 4 Enter the maximum Idle Timeout for the Internet connection After this time has been exceeded the connection will be terminated 5 Check the Get IP By DHCP box to receive IP address from your ISPs DHCP function If this box is not checked enter the IP address Subnet mask and Default Gateway information on the co...

Страница 43: ...ction use the following procedure Figure 27 L2TP Screen 1 Enter the L2TP Server information 2 Enter the User ID and Password required by your ISP 3 Retype the password 4 Enter the maximum Idle Timeout for the Internet connection After this time has been exceeded the connection will be terminated 5 Check the Get IP By DHCP box to receive IP address from your ISP s DHCP function If this box is not c...

Страница 44: ...nter the new IP address in the IP Address field and then enter the subnet mask in the Subnet Mask field 2 Check the Enable DHCP Server box to enable the DHCP function 3 Enter the client IP address range in the IP Pool Start Address and IP Pool End Address fields You can also click Auto IP Range to automatically set the starting and ending IP address 192 168 1 2 192 168 1 254 4 Click Next The Wirel...

Страница 45: ...tting Screen 1 Select the channel you want to use from the Channel drop down menu 2 Specify the SSID to be used by your wireless network in the SSID field If there are other wireless networks in your area you should give your wireless network an unique name For advanced settings please click Wireless Settings on the left Menu bar after completing this Setup Wizard setting 3 Click Next ...

Страница 46: ...ect the security mode five options available Disabled selecting this mode means no wireless security will be used 64 bit WEP see page 45 128 bit WEP see page 46 WPA PSK no server see page 47 WPA with Radius server see page 48 Figure 30 Security Mode Screen ...

Страница 47: ...WEP 1 You can enter the 64 bit WEP key manually Enter the WEP key as 5 pairs of hex digits 0 9 A F Or you can generate the 64 bit WEP key automatically Enter a memorable passphrase in the Passphrase box and then click Generate to generate the hex keys from the passphrase For 64 bit WEP you can enter up to four keys in the fields Key 1 to Key 4 The radio button on the left hand side selects the key...

Страница 48: ...WPA2 security Figure 32 128 bit WEP Screen To enable 128 bit WEP 1 You can enter the 128 bit WEP key manually enter your WEP key as 13 pairs of hex digits 0 9 A F Or you can generate the 128 bit WEP key automatically enter a memorable passphrase in the Passphrase box and then click Generate to generate the hex keys from the passphrase 2 Click Apply Note that the WEP keys on each device on the wire...

Страница 49: ...PA and WPA2 WPA supports TKIP and AES Encryption technique for some old module of wireless client cards they may only support TKIP In this case we suggest you to select AUTO for WPA AES for WPA2 If your wireless client cards can support AES over WPA we suggest you directly select AES for both WPA and WPA2 4 Enter the pre shared key in the Pre shared Key PSK field The pre shared key is a password i...

Страница 50: ...WPA2 and AES for both WPA and WPA2 WPA supports TKIP and AES Encryption technique for some old module of wireless client cards they may only support TKIP In this case we suggest you to select AUTO for WPA AES for WPA2 If your wireless client cards can support AES over WPA we suggest you directly select AES for both WPA and WPA2 4 Enter the IP address of the RADIUS server on your network into the R...

Страница 51: ... will appear Verify the configuration information of the Router and then click Apply to save your settings 3Com recommends that you print out this page for your records Figure 35 Configuration Summary Screen Your Router is now configured and ready for use See Chapter 5 for a detailed description of the Router configuration ...

Страница 52: ...50 CHAPTER 4 RUNNING THE SETUP WIZARD ...

Страница 53: ...default IP is http 192 168 1 1 However if you changed the Router LAN IP address during initial configuration use the new IP address instead Enter your password to login to the management interface The default password is admin Main Menu The main menu is located on the left side as shown in Figure 36 When you click on an item from the main menu the corresponding screen will then appear in the cente...

Страница 54: ...92 168 1 1 Change the Subnet Mask The default setting is 255 255 255 0 Enable Disable the DHCP Server Function The default is Enable Specify the Starting and Ending IP Pool address The default is Starting 2 Ending 254 Specify the IP address Lease Time The default is One day Specify a local Domain Name This field is optional Specify the IP address of 3Com NBX call processor The Router will also pro...

Страница 55: ... for each computer 5 Specify the Local Domain Name for your network this step is optional 6 Enter the IP address of the NBX Call Processor in the 3Com NBX Call Processor field this step is optional 7 Check all of your settings and then click Apply DHCP Clients List The DHCP Clients List provides details on the devices that have received IP addresses from the Router The list is only created when th...

Страница 56: ...pe Whether the client is connected to the Router by wired or wireless connection Check the Fix checkbox to permanently fix the IP address Click Release to release the displayed IP address Click Add to allocate an IP address to a MAC address Enter the required details and click Apply to save your settings The DHCP server will give out addresses to both wired and wireless clients ...

Страница 57: ... You can enable or disable the wireless connection for your LAN When disabled no wireless PCs can gain access to either the Internet or other PCs on your wired or wireless LAN through this Router Figure 39 Wireless Settings Screen There are 8 tabs available Configuration Encryption WPS Connection Control Client List WMM WDS Advanced ...

Страница 58: ... to 20 MHz then this option will not be available 4 Specify the SSID to be used by your wireless network in the SSID field If there are other wireless networks in your area you should give your wireless network an unique name 5 Enable or disable SSID Broadcast A feature of many wireless network adapters is that a computer s SSID can be set to ANY which means it looks randomly for any existing wire...

Страница 59: ...r wireless network is purely 11 b only or 11g only or 11b and 11g mixed select 20 MHz 8 Select to turn on off the Protected Mode function As part of the 802 11g 802 11n specification Protected mode ensures proper operation of 802 11g 802 11n clients and access points when there is heavy 802 11b traffic in the operating environment When protected mode is ON 802 11g 802 11n scans for other wireless ...

Страница 60: ...reless transmissions will not be encrypted and will be visible to everyone However when setting up or debugging wireless networks it is often useful to use this security mode 64 bit WEP WEP is the basic mechanism to transmit your data securely over the wireless network Matching encryption keys must be setup on your Router and wireless client devices to use WEP Note that 3Com recommends using WPA W...

Страница 61: ...e that all four WEP keys on each device in the wireless network must be identical 2 Click Apply 128 bit WEP WEP is the basic mechanism to transmit your data securely over the wireless network Matching encryption keys must be set up on your Router and wireless client devices to use WEP Note that 3Com recommends using WPA WPA2 to secure your wireless connection Figure 43 128 bit WEP Screen To setup ...

Страница 62: ...ed Figure 44 WPA PSK no server Screen 1 Select WPA PSK no server from the WPA drop down menu 2 Select WPA mode from the drop down menu three modes are supported WPA WPA2 and Mixed mode 3 Select Encryption technique from the drop down menu four options are available TKIP AES Auto for WPA AES for WPA2 and AES for both WPA and WPA2 WPA supports TKIP and AES Encryption technique for some old module of...

Страница 63: ...rver is running on the network Figure 45 WPA with RADIUS Server Screen 1 Select WPA with RADIUS server from the Security Mode drop down menu 2 Select WPA mode from the drop down menu three modes are supported WPA WPA2 and Mixed mode 3 Select Encryption technique from the drop down menu four options are available TKIP AES Auto for WPA AES for WPA2 and AES for both WPA and WPA2 WPA supports TKIP and...

Страница 64: ...ate the new WLAN clients into your wireless network easily You can enable this function by entering the PIN code via the web UI page or by pressing the WPS button on the rear side of the device Figure 46 WPS Screen Two methods to setup the WPS you can choose either one of the following method Note that if you choose to use the PBC mode it would be no need to enter the PIN code of the wireless NIC ...

Страница 65: ...PIN method Then the Router starts to negotiate the security with the WLAN clients and WPS LED will start flashing After the connection has been established successfully the WPS LED will then be off WPS PBC 1 Press the WPS button located on the rear of the Router Note that this setup precess will only be active for 2 minutes Follow the instruction of your WLAN NIC to set up the WPS ...

Страница 66: ...two options available in the Access rule for registered MAC address field if you click Allow this means only the MAC addresses registered here in the list will be allowed to access the Router via wireless link if you click Deny this means the registered MAC addresses will not be able to access the Router via wireless link Use the MAC Address Filtering List to quickly copy the MAC addresses of the ...

Страница 67: ...ate the list WMM Wireless Multimedia WMM mode which supports devices that meet the 801 11e QBSS standard WMM uses traffic priority based on the four ACs Voice Video Best Effort and Background The higher the AC priority the higher the probability that data is transmitted Check the Enable WMM Function box the WMM parameters table will appear Figure 49 WMM Screen ...

Страница 68: ...of wait time before the next data transmission attempt Specify the AIFS value in the range 0 15 microseconds CWMax Maximum Contention Window The maximum upper limit of the random backoff wait time before wireless medium access can be attempted The contention window is doubled after each detected collision up to the CWMax value Specify the CWMax value in the range 0 15 microseconds Note that the CW...

Страница 69: ...ansmit opportunity it can transmit data for a time up to the TxOpLimit This data bursting greatly improves the efficiency for high data rate traffic Specify a value in the range 0 65535 microseconds ACM Admission Control Mode for the access category When enabled clients are blocked from using the access category Default Disabled Ack Policy WMM Acknowledge Policy By default all wireless data transm...

Страница 70: ...roducts will interoperate In addition the security settings for WDS links should be the same as the one setup for your wireless clients Figure 50 Wireless WDS Settings Screen 1 Check the Enable WDS Function checkbox 2 To refresh the list of available access points click Rescan Wireless Networking If the MAC address of the desired APs is in the list of scanned APs you can simply check those APs to ...

Страница 71: ...d wireless mode Set the wireless security setting and enable wireless WDS function Setting of the second Router Set the LAN IP setting use a different IP address from the IP address of the first Router Disable the DHCP function this would allow the first Router to allocate IP address for wireless clients Set the wireless channel and security same as the first Router but use a different SSID Make s...

Страница 72: ...ONFIGURING THE ROUTER Figure 52 First Router add WDS Screen Access the Web UI of the second Router repeat the above steps to add the first Router to the WDS table see Figure 53 Figure 53 Second Router add WDS Screen ...

Страница 73: ...entation can increase the reliability of frame transmissions Because of sending smaller frames collisions are much less likely to occur RTS Threshold RTS stands for Request to Send this parameter controls what size data packet the low level RF protocol issues to an RTS packet CTS Protection Mode CTS stands for Clear to Send CTS Protection Mode boosts the Router s ability to intercept 802 11b 802 1...

Страница 74: ... CHAPTER 5 CONFIGURING THE ROUTER network and will not be able to communicate with each other You may want to utilize this feature if you have many guests that frequently connect to your wireless network ...

Страница 75: ...ned from your ISP Check with your ISP first to find out what type of connection you should choose Figure 55 WAN Screen There are five options available for the connection mode Dynamic IP Using DHCP for WAN connection see page 74 Static IP Using fixed IP for WAN connection see page 75 PPPoE PPP over Ethernet providing routing for multiple PCs see page 76 PPTP Point to Point Tunneling Protocol see p...

Страница 76: ...gure the Router to obtain an IP address automatically from a DHCP server Figure 56 Dynamic IP Screen 1 Select Dynamic IP from the Internet sharing protocol drop down menu 2 If the ISP requires you to input a Host Name type it in the Host Name field 3 Click Apply ...

Страница 77: ...1 Select Static IP from the Internet sharing protocol drop down menu 2 Enter your IP address in the IP address assigned by your service provider field 3 Enter the subnet mask in the Subnet Mask field 4 Enter the default gateway IP address in the Service Provider Gateway Address field 5 Enter DNS IP address 6 If there is a secondary DNS enter the IP address 7 Click Apply ...

Страница 78: ...igned to you by your ISP in the Password field Re enter your password in the Retype Password field 3 The Service Name field is optional 4 Enter the MTU value in the MTU field Do not make changes to this setting unless your ISP specifically requires a different setting other than 1492 5 If you want your Router to automatically disconnect from the Internet after a period of inactivity specify a time...

Страница 79: ...sword assigned to you by your ISP in the Password field Re enter your password in the Retype Password field 4 If you want your Router to automatically disconnect from the Internet after a period of inactivity specify a time in the Idle Timeout field Enter a value of 0 to disable this timeout 5 If you receive the IP address from your ISP via DHCP function check the Get IP By DHCP box 6 If no DHCP f...

Страница 80: ...ocol drop down menu 2 Enter the L2TP Server information 3 Enter the User ID and Password required by your ISP 4 Retype the password 5 Enter the maximum Idle Timeout for the Internet connection After this time has been exceeded the connection will be terminated 6 Check the Get IP By DHCP box to receive IP address from your ISP s DHCP function If this box is not checked enter the IP address Subnet m...

Страница 81: ... 105 232 4 Figure 61 DNS Screen If the DNS information is automatically provided by your ISP every time you connect to it check the Automatic from ISP checkbox If your ISP provided you with specific DNS addresses to use enter them into the appropriate fields on this screen and click Apply Many ISPs do not require you to enter this information into the Router If you are using a Static IP connection...

Страница 82: ...equire a host name If your ISP has this requirement enter the host name in the Host Name field 2 Three different ways to configure the WAN MAC Address If your ISP requires an assigned MAC address enter the values in the WAN MAC address field or If the computer that you are using is the one that was previously connected directly to the cable modem click Clone or To reset the MAC Address to the defa...

Страница 83: ...tion SPI The Intrusion Detection Feature of the Router limits access for incoming traffic at the WAN port This feature is called a stateful packet inspection because it examines the contents of the packet to determine the state of the communications i e it ensures that the stated destination computer has previously requested the current communication This is a way of ensuring that all communicatio...

Страница 84: ...tions are both off For medium level of firewall protection DoS in on but SPI is off For high level of firewall protection refer to Figure 65 Both DoS and SPI are on for this level of firewall protection The higher the firewall level is the safer that your network is Figure 64 Low and Medium Level Firewall Protection Screen When abnormal network activity occurs an alerting email will be sent out to...

Страница 85: ...or use by another packet TCP SYN wait Defines how long the software will wait for a TCP session to synchronize before dropping the session TCP FIN wait Specifies how long a TCP session will be maintained after the firewall detects a FIN packet TCP connection idle timeout The length of time for which a TCP session will be managed if there is no activity UDP session idle timeout The length of time f...

Страница 86: ...W Minimum number of allowed incomplete TCP UDP sessions per minute Maximum incomplete TCP UDP sessions number from same host Maximum number of incomplete TCP UDP sessions from the same host Incomplete TCP UDP sessions detect sensitive time period Length of time before an incomplete TCP UDP session is detected as incomplete Maximum half open fragmentation packet number from same host Maximum number...

Страница 87: ...r that application If your application is not listed you will need to check with the application vendor to determine which ports need to be configured You can manually enter the port information into the Router To manually enter the port information 1 Specify the trigger port the one used by the application when it is initialized in the Trigger Port column and specify whether the trigger is TCP or...

Страница 88: ...contact the application vendor to find out which port settings you need The maximum number of virtual servers that can be configured is 20 Figure 67 Virtual Servers Screen A list of popular servers has been included to choose from Select the server from the Popular servers drop down menu Then click Add your selection will be added to the table If the server that you want to use is not listed in th...

Страница 89: ...estricted two way Internet access This may be necessary if the NAT feature is causing problems with an application such as a game or video conferencing application Figure 68 DMZ Screen Use this feature on a temporary basis The computer in the DMZ is not protected from hacker attacks Check the Enable DMZ box the IP Address of Virtual DMZ Host will appear 1 Enter the last digits of the LAN IP addres...

Страница 90: ...ly 1 to 1 NAT function is allowed 2 Click Apply PC Privileges The Router can be configured to restrict access to the Internet email or other network services at specific days and times Restriction can be set for a single computer a range of computers or multiple computers You can define the traffic type permitted or not permitted to the Internet Note that this function requires timescheduling to b...

Страница 91: ... keywords defined in this screen will not be filtered out 3 Select the services to be blocked A list of popular services is listed on this screen to block a particular service check the appropriate Blocking checkbox If the service to be restricted is not listed here you can enter a custom range of ports at the bottom of the screen under User Defined Blocked Ports 4 If you want the restriction to a...

Страница 92: ...s screen and define the rules in the PC Privileges screen see page 88 Figure 71 Schedule Rule Screen 1 Click Add Rule to add a schedule rule refer to Figure 72 Figure 72 Add Schedule Rule Screen 2 Enter a name and comment for the schedule rule in the Name and Comment fields 3 Specify the schedule rules for the required days and times note that all times should be in 24 hour format 4 Click Apply ...

Страница 93: ... Filter Screen 1 Check the Enable URL Filtering Function checkbox The rule table will appear 2 Enter the URL address or keywords in the URL Keyword field 3 Select Denied or Allowed from the Mode drop down menu To complete this configuration you will need to create or modify the filtering rule in the PC Privileges screen see page 88 From the PC Privileges Add PC screen Figure 70 if you check the op...

Страница 94: ...n allows you to set additional parameter details for the Router You can configure Security VLAN Static Routes RIP DDNS SNMP Syslog Proxy Arp QoS Settings Security Use the Security screen to set the advanced security settings for the Router Figure 74 Security Screen ...

Страница 95: ...pliant Some applications require the Router s firewall to be configured in a specific way to operate properly This usually requires opening TCP and UDP ports and in some instances setting trigger ports An application that is Universal Plug and Play compliant has the ability to communicate with the Router basically telling the Router which way it needs the firewall configured The Router ships with ...

Страница 96: ...ay be blocked by some firewalls When this occurs the packet is dropped To allow the message to go through the firewall enable MSS Clamping MSS clamping will make Internet Connection Sharing set the MSS value low enough to match the external interface Remote Administration This feature allows you to make changes to your Router s settings from anywhere on the Internet Four options are available If y...

Страница 97: ...enefits It eases the change and movement of devices on IP networks With traditional IP networks network administrators spend much of their time dealing with moves and changes If users move to a different IP subnet the IP addresses of each endstation must be updated manually With a VLAN setup if an endstation in VLAN 1 is moved to a port in another part of the network you only need to specify that ...

Страница 98: ...AN in the Description field Enter the IP Address and subnet mask in the corresponding fields Select to set the NAT Domain as public or private IGMP Snooping enabling it will turn on the feature that allows an Ethernet switch to listen in on the IGMP conversation between hosts and routers IGMP Querier enabling this function will send out periodic IGMP queries Click Apply ...

Страница 99: ... tunnel Figure 77 Static Routes Screen To add a static route entry to the table click Add see Figure 78 To change an existing entry click Edit To delete an entry click Delete Figure 78 Add Static Route Screen Enter the following information Network Address the network address of the static route Subnet Mask the subnet mask of the route A network address of 0 0 0 0 and a subnet mask of 0 0 0 0 indi...

Страница 100: ...Note that you should only confiqure either the Gateway information or select the Interface After you have finished making changes to the table click Apply Here is an example of setting up a static route IP address of your PC 10 1 4 52 Subnet mask 255 255 252 0 Default Gateway 10 1 4 254 Network Address 10 1 4 0 Figure 79 Add Static Route Example Screen ...

Страница 101: ... simplified routing data to other RIP enabled devices rather than full routing data 3 Select the Operation Mode Disable RIP is not enabled for the WAN or LAN interface Enable RIP is enabled for the WAN or LAN interface The router will transmit RIP update information to other RIP enabled devices Silent RIP is enabled however the Router only receives RIP update messages it will not transmit any mess...

Страница 102: ...utes that point to each other preventing data loops 6 Use the Authentication Required field to choose the mode of authentication None Switches off authentication on the specified interface Password An unencrypted text password that needs to be set on all RIP enabled devices connected to this Router RIP information is not shared between devices whose passwords do not match 7 In the Password field e...

Страница 103: ...at points to your dynamic IP or static IP address or URL Before you set up DDNS you must obtain an account password or key and static domain name from your DDNS provider The Router supports five DDNS providers DynDNS org TZO com Dt DNS com No IP com Zoneedit com Figure 81 Dynamic Domain Name Server DDNS Screen 1 Check Enable DDNS 2 Select the provider and then enter the necessary information provi...

Страница 104: ...rmation To Configure SNMP Community 1 In the Community column enter the name of the SNMP communication channel Your SNMP management agent needs to be configured with this name so that it can communicate with your Router 2 In the Access column select Read to allow the management agent to collect data for example bandwidth usage from your Router Select Write to allow the management agent to change t...

Страница 105: ... SNMP communication channel to which you want your Router to send status messages 3 Set the Version field to match the version of trap messaging that your SNMP management agent supports The Router supports V1 and V2c trap messaging Syslog Using third party syslog software this Syslog Server tool will automatically send the Router log to the specified server IP address Figure 83 Syslog Server Scree...

Страница 106: ...ed for another machine By faking its identity the Router accepts responsibility for routing packets to the real or intended destination This heightens the security for your network Figure 84 Proxy ARP Screen 1 Check the Enable ProxyARP box 2 Enter the corresponding IP address in the IP Address From and IP Address To fields 3 Click Apply ...

Страница 107: ...s VoIP gaming and VPN This QoS function allows you to classify traffic of applications and provides them with differentiated services Diffserv Figure 85 QoS Settings Screen 1 Check the Enable QoS box and enter the value for WAN Out Bandwidth 2 Define the minimum percentage of bandwidth for each type of traffic 3 Check the corresponding box to allow more bandwidth allocation 4 Click Apply Note that...

Страница 108: ...creen Click Add the Edit Traffic Class screen will appear Figure 87 Edit Traffic Class Screen 1 Define the Rule name 2 Select the traffic type from drop down menu 3 Select the forwarding group from the Map to Forwarding Group drop down menu 4 Select the value from the Remark DSCP as drop down menu 5 Click the ADVANCED CONFIG button a more detailed Edit Traffic class screen will appear see Figure 8...

Страница 109: ...Advanced 107 Figure 88 Detailed Edit Traffic Class Screen Enter the information then click Apply to make the settings to take effect ...

Страница 110: ...ec but is easy to administer PPTP does not support gateway to gateway connections and is only suitable for connecting remote users Check that your ISP s routers support this protocol before you use it Note Enabling the PPTP Server disables PPTP pass through to a Virtual Server on the LAN Pass through outbound from clients on the LAN to servers on the Internet is unaffected L2TP over IPSec this is ...

Страница 111: ...9 VPN Screen 1 Check the Enable IPsec box configuration details screen appears Figure 90 Enable IPSec Screen 2 Enter the Local ID Name of your VPN the default is 3ComVPN 3 Click Add to create a new entry see Figure 91 ...

Страница 112: ...ist select either IP_IPV4_ADDR or ID_USER_FQDN This information must be entered identically on the IPSec software installed on the client s machine If IP_IPV4_ADDR is selected then enter the IP address and subnet mask in the Remote Network Address and Remote Subnet Mask fields The remote network address is usually the network address of the LAN connected to the remote server If ID_USER_FQDN is sel...

Страница 113: ...hat you create 9 Select MD5 or SHA1from the Authentication Algorithm drop down menu Both ends of the connection must use the same value 10 Select DES 3DES Null AES 128 AES 192 or AES 256 from the Encrypt Algorithm drop down menu Both ends of the connection must use the same value 11 Enter the Key lifetime in seconds The default is 3600 seconds The value must be at least 300 seconds 12 PFS Perfect ...

Страница 114: ...ppears see Figure 92 Figure 92 Enable L2TP Screen 1 Enter the Pre shared Key for L2TP Server over IPSec Setting 2 Define the IP Address Pool for L2TP clients enter the start end address 3 Click Add to create a new entry see Figure 93 Figure 93 Add New VPN Tunnel Parameter L2TP over IPSec Screen ...

Страница 115: ... you want to auto reconnect after disconnection if the L2TP Type Setting is set to L2TP Server go to step 6 6 Check the box to enable the Remote Network Setting and then enter the Remote Network Address and Remote Subnet Mask information 7 When the L2TP Type Setting is set to L2TP Client you would then need to enter the Pre shared Key information 8 Click Apply Check the Enable PPTP box configurati...

Страница 116: ...u set the type as PPTP Client then set the Local Type Setting to Network or Host then enter the Remote Server IP Check the Auto reconnect box if you want to auto reconnect after disconnection if the PPTP Type Setting is set to PPTP Server go to step 6 6 Check the box to enable the Remote Network Setting and then enter the Remote Network Address and Remote Subnet Mask information 7 When the PPTP Ty...

Страница 117: ...t may be necessary to restart or reboot the Router Restarting the Router from this screen will not delete any of your configuration settings Click the Restart the Router button to restart the Router Figure 96 Restart Router Screen Configuration Use this configuration screen to backup restore or reset the configuration details of the Router Figure 97 Configuration Screen ...

Страница 118: ...on and click Restore Reset to Factory Default Using this option will reset all of the settings in the Router to the factory default settings It is recommended that you backup your settings before you restore all of the defaults To restore the factory default settings click Reset Note that all of your current configuration will be lost Upgrade From time to time 3Com may release new versions of the ...

Страница 119: ...ecurity log and control client filtering Select the time zone that you reside in If you reside in an area that observes Daylight Saving then check the Enable Daylight Savings box The system clock may not update immediately Allow at least 15 minutes for the Router to contact the time servers on the Internet and get a response You cannot set the clock yourself You can specify which NTP servers the R...

Страница 120: ... network is working properly Figure 100 Ping Screen 1 Enter the IP address or domain name in the IP Address or Domain Name field and click Ping 2 Select from the Number of times to Ping drop down menu 3 The Router keeps a log of the ping test click Clear Log to delete the records ...

Страница 121: ...a given server might be poor and can often help you figure out where exactly the problem is It also shows you how systems are connected to each other letting you see how your ISP connects to the Internet as well as how the target system is connected Figure 101 Traceroute Screen 1 Enter the IP address or domain name in the IP Address or Domain Name field and click Traceroute 2 The Router keeps a lo...

Страница 122: ...omain name in the IP Address or Domain Name field and click Dns lookup 2 The Router keeps a log of the DNS lookup test click Clear Log to delete the records Diagnostic This screen is designed to collect diagnostic information of this Router click the Start button to start the diagnostic then save the information in a file You can later use this information to analyze your network Figure 103 Diagno...

Страница 123: ...numbers for your Router s software and hardware and check the status of connections to WAN LAN and WLAN interfaces Status This screen shows Router status and statistics Release use this button to release the current IP Renew use this button to obtain a new IP Figure 104 Status Screen ...

Страница 124: ... shows any attempts that have been made to gain access to your network as well as the system activities Figure 106 Logs Screen Click Help to view the help file Click Save to save the log to the hard disk as a text file When prompted for a location to save the file to specify a filename and location and then click OK Click Clear to clear the log note that all current entries will be erased Click Re...

Страница 125: ... traffic statistics Use the Refresh button to update the information Note that the current implementation only shows traffic statistics per forwarding group Hence if QoS is not enabled this screen will always show zero values Figure 107 Traffic Statistics Screen ...

Страница 126: ...n support and help and also provide feedback to 3Com Support Figure 108 Support Screen This screen shows support information Feedback To provide feedback to 3Com please click Provide Feedback and this will connect you to the 3Com Web site Figure 109 Feedback Screen This screen shows feedback information ...

Страница 127: ...onnected to your computers and to the cable DSL modem and that all the equipment is powered on Check that the LAN Status and power LEDs on the Router are illuminated and that any corresponding LEDs on the NIC are also illuminated Ensure that the computers have completed their start up procedure and are ready for use Some network interfaces may not be correctly initialized until the start up proced...

Страница 128: ...he Router to ensure that your computer receives an IP address When entering the address of the Router into your web browser ensure that you use the full URL including the http prefix e g http 192 168 1 1 Ensure that you do not have a Web proxy enabled on your computer Go to the Control Panel and click on Internet Options Select the Connections tab and click on the LAN Settings button at the bottom...

Страница 129: ...on screen but cannot log on because you do not know or have forgotten the password follow the steps below to reset the Router to its factory default configuration CAUTION All your configuration changes will be lost and you will need to run the configuration wizard again before you can re establish your Router connection to the Internet Also other computer users will lose their network connections ...

Страница 130: ... same as those configured on the Router The Router cannot simultaneously support WPA and WEP encryption Ensure that you have the wireless computer enabled in the list of allowed MAC addresses if you are using MAC Address Filtering on the Router If you are having difficulty connecting or are operating at a low speed try changing the antenna positions on the rear of the Router For more effective cov...

Страница 131: ...ity of your connection As the signal quality weakens then the speed falls back to a lower speed The speeds supported by 802 11g are 54 Mbps 48 Mbps 36 Mbps 24 Mbps 18 Mbps 12 Mbps and 6 Mbps The speeds supported by 802 11b are 11 Mbps 5 5 Mbps 2 Mbps and 1 Mbps In general the closer you are to the Router the better the speed If you are not achieving the speed you had anticipated then try moving th...

Страница 132: ...ly on page 23 3 Restart the computer 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 Recovery utility in the Router 5 Follow the on screen instructions Enter the path and filename of the software image file 6 When the upload has completed the Router will restart run the self test and ...

Страница 133: ...3Com Technical Support and ask for assistance Caution Only use the power adapter supplied with the Router or a replacement 3Com power adapter Do not use any other power adapter For reference the part number for the power adapter supplied for your region is 3Com Number Region 3C12VUS US and Canada 3C12VUK or 3C15VUK UK 3C12VME or 3C15VME Europe and Middle East 3C12VAA Australasia except Japan and K...

Страница 134: ...idth consumed by each user There are only 4 LAN ports on the Router How are additional computers connected You can expand the number of connections available on your LAN by using hubs switches and wireless access points connected to the Router 3Com wireless access points and hubs and switches provide a simple reliable means of expanding your network contact your supplier for more information or vi...

Страница 135: ...vice 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 IP address to operate correctly An IP address identifies the address of the device to which data is being sent and the address of the destination network IP addresses have the format n n n x where n ...

Страница 136: ...ne 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 3 for an example about how a network with three computers and a Router might be configured Table 3 IP Addressing and Subnet Masking Type Two In larger networks where there are more devices the IP address o...

Страница 137: ...ated once you disconnect from the network DHCP will work on any client Operating System such as Windows 98 Windows NT 4 0 Windows 2000 Windows XP and Windows Vista Also using DHCP means that the same IP address and subnet mask will never be duplicated for devices on the network DHCP is particularly useful for networks with large numbers of users on them Static Addressing You must enter an IP Addre...

Страница 138: ... 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 was introduced by Microsoft in the Windows 98 operating system and is also supported in Windows 2000 and Windows XP ...

Страница 139: ...n value is 2 dBi One internal PIFA antenna for RX function only and the gain value is 2 dBi WLAN Interfaces IEEE draft 802 11n Orthogonal Frequency Division Multiplexing OFDM Transmission rate 802 11n 40MHz 300 Mbps automatic fallback to 243 216 162 135 121 5 108 81 54 40 5 27 13 5Mbps 802 11n 20MHz 130Mbps automatic fallback to 117 104 78 65 58 5 52 39 26 19 5 13 6 5Mbps Maximum channels 13 Range...

Страница 140: ...m clients 128 O P Power 14dBm Standard IEEE 802 11b Direct Sequence Spread Spectrum DSSS Transmission rate 11Mbps automatic fallback to 5 5 2 or 1 Mbps Maximum channels 13 Range up to 304 8m 1000ft Sensitivity 1 2 5 5 Mbps 85 dBm 11 Mbps 82 dBm typical Modulation CCK BPSK QPSK Encryption 40 64 bit WEP 128 bit WEP WPA WPA2 Maximum clients 128 O P Power 18dBm Operating Temperature 0 C to 40 C 32 F t...

Страница 141: ...E 802 3 IEEE 802 11b 802 11g Safety EN 60950 1 2001 UL 60950 1 IEC 60950 1 2001 CSA 22 2 No 60950 1 EMC FCC Part15 B EN 55022 EN 55024 EN 61000 EN 301 489 1 ICES 003 Radio FCC Part 15 C RSS 210 EN 300 328 Environmental EN 60068 IEC 68 See Regulatory Notices for conditions of operation ...

Страница 142: ...000 Windows XP Windows Vista Mac OS 8 5 or higher Unix Ethernet Performance The Router complies to the IEEE 802 3i u and x specifications Cable Specifications The Router supports the following cable types and maximum lengths Category 3 Ethernet or Category 5 Fast Ethernet or Dual Speed Ethernet Twisted Pair shielded and unshielded cable types Maximum cable length of 100m 327 86 ft ...

Страница 143: ...WARNING To ensure compliance with international safety standards only use the power adapter that is supplied with the unit WARNING The socket outlet must be near to the unit and easily accessible You can only remove power from the unit by disconnecting the power cord from the outlet WARNING This unit operates under SELV Safety Extra Low Voltage conditions according to IEC 60950 The conditions are ...

Страница 144: ... Sie sich bei den zuständigen 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 Geräts ist mit höchster Vorsicht vorzugehen VORSICHT Aufgrund von internationalen Sicherheitsnormen darf das Gerät nur mit dem mitgelieferten Netzadapter verwendet werden VORSICHT Die Netzsteck...

Страница 145: ... Nous vous demandons de lire attentivement les consignes suivantes de sécurité avant d installer ou de retirer l appareil AVERTISSEMENT La Router fournit et utilise de l énergie radioélectrique radio fréquence rf L utilisation de l énergie radioélectrique est interdite dans certains environnements L utilisateur devra se renseigner sur l autorisation de cette énergie dans la zone prévue AVERTISSEME...

Страница 146: ...du moyeu Si vous avez un problème physique avec le moyeu qui ne peut pas être résolu avec les actions de la résolution des problèmes dans ce guide contacter votre fournisseur AVERTISSEMENT Débranchez l adaptateur électrique avant de retirer cet appareil AVERTISSEMENT Ports RJ 45 Il s agit de prises femelles blindées de données RJ 45 Vous ne pouvez pas les utiliser comme prise de téléphone Branchez...

Страница 147: ...m s and its licensors proprietary rights and copyright notices 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 ASSIGNMENT NO REVERSE ENGINEERING You may transfer the Software Documentation and the licenses granted herein to another party in the same country in whi...

Страница 148: ... All warranties and limitations of liability applicable to the Software are as stated on the Limited Warranty Card or in the product manual whether in paper or electronic form accompanying the Software however this End User Software License Agreement amends such Limited Warranty Card or product manual as follows 3Com s warranty and warranty disclaimers for the materials runs from 3Com to the purch...

Страница 149: ...147 ...

Страница 150: ... Helps you to troubleshoot 3Com products This query based interactive tool is located at http knowledgebase 3com com It contains thousands of technical solutions written by 3Com support engineers Purchase Extended Warranty and Professional Services To enhance response times or extend your warranty benefits you can purchase value added services such as 24x7 telephone technical support software upgr...

Страница 151: ...es cover feature enhancements incremental functionality and bug fixes but they do not include software that is released by 3Com as a separately ordered product Separately orderable software releases and licenses are listed in the 3Com Price List and are available for purchase from your 3Com reseller Contact Us 3Com offers telephone internet and e mail access to technical support and repair service...

Страница 152: ...616 1463 080 698 0880 00801 444 318 001 800 441 2152 Pakistan Call the U S direct by dialing 00 800 01001 then dialing 800 763 6780 Sri Lanka Call the U S direct by dialing 02 430 430 then dialing 800 763 6780 Vietnam Call the U S direct by dialing 1 201 0288 then dialing 800 763 6780 You can also obtain non urgent support in this region at this email address apr_technical_support 3com com Or requ...

Страница 153: ...998 2112 AT T 800 998 2112 AT T 800 998 2112 Grenada Guadalupe Guatemala Guyana Haiti Honduras Jamaica Mexico Mexico Local Monserrat Nicaragua Panama Paraguay Peru Puerto Rico Rest of Latin America St Kitts Nevis St Lucia St Vincent Suriname Trinidad and Tobago Turks and Caicos Uruguay Montevideo Venezuela Virgin Islands AT T 800 988 2112 AT T 800 998 2112 AT T 800 988 2112 AT T 800 998 2112 AT T ...

Страница 154: ...152 APPENDIX E OBTAINING SUPPORT FOR YOUR 3COM PRODUCTS ...

Страница 155: ...T The IEEE specification for 10 Mbps Ethernet over Category 3 4 or 5 twisted pair cable 100BASE TX The IEEE specification for 100 Mbps Fast Ethernet over Category 5 twisted pair cable Access Point An access point is a device through which wireless clients connect to other wireless clients and which acts as a bridge between wireless clients and a wired network such as Ethernet Wireless clients can ...

Страница 156: ...154 GLOSSARY access point It offers lower performance than infrastructure mode which is the mode the router uses see also Infrastructure mode ...

Страница 157: ...of Twisted Pair TP cabling defined by the EIA TIA 586 standard Category 5 can be used in Ethernet 10BASE T and 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 Fast Ethernet 100 Mbps speeds Channel Similar to any radio device the Wireless Cable DSL r...

Страница 158: ...o levels of encryption 40 64 bit and 128 bit 128 bit is a more powerful level of encryption than 40 64 bit ESSID Extended Service Set Identifier The ESSID is a unique identifier for your wireless network You must have the same ESSID entered into the Router and each of it s wireless clients Ethernet A LAN specification developed jointly by Xerox Intel and Digital Equipment Corporation Ethernet netw...

Страница 159: ... your Router see also Ad Hoc mode IP Internet Protocol IP is a Layer 3 network protocol that is the standard for sending data through a network IP is part of the TCP IP set of protocols that describe the routing of packets to addressed devices An IP address consists of 32 bits divided into two or three fields a network number and a host number or a network number a subnet number and a host number ...

Страница 160: ...dress The NAT capability of the Router allows you to access the Internet from any computer on your home network without having to purchase more IP addresses from your ISP Network A network is a collection of computers and other computer equipment that is connected for the purpose of exchanging information or sharing resources Networks vary in size some are within a single room others span continen...

Страница 161: ...s used to create IP address numbers used only within a particular network as opposed to valid IP address numbers recognized by the Internet which must assigned by InterNIC Subnets A network that is a component of a larger network Switch A device that interconnects several LANs to form a single logical LAN that comprises of several LAN segments Switches are similar to bridges in that they connect L...

Страница 162: ... to extend range and reach though this can affect the overall throughput of data WECA Wireless Ethernet Compatibility Alliance An industry group formed to certify cross vendor interoperability and compatibility of 802 11b and 802 11g wireless networking products and to promote the standard for enterprise small business and home environments see also 802 11b 802 11g Wi Fi WEP Wired Equivalent Priva...

Страница 163: ...WLAN is a group of computers and devices connected together by wireless in a relatively small area such as a house or office WPA Wi Fi Protected Access A dynamically changing encryption mechanism for wireless networking Encryption strength is 256 bit ...

Страница 164: ...162 GLOSSARY ...

Страница 165: ... This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning...

Страница 166: ...re de brouillage et 2 l utilisateur du dispositif doit etre pret a accepter tout brouillage radioelectrique recu meme si ce brouillage est susceptible de compromettre le fonctionnement du dispositif This Class B digital apparatus complies with Canadian ICES 003 Cet appareil numerique de la class B est conforme a la norme NMB 003 du Canada IMPORTANT NOTE IC Radiation Exposure Statement This equipme...

Страница 167: ...99 5 EF Deutsch German Hiermit erklärt 3Com Corporation dass sich das Gerät RLAN device in Übereinstimmung mit den grundlegenden Anforderungen und den übrigen einschlägigen Bestimmungen der Richtlinie 1999 5 EG befindet Eesti Estonian Käesolevaga kinnitab 3Com Corporation seadme RLAN device vastavust direktiivi 1999 5 EÜ põhinõuetele ja nimetatud direktiivist tulenevatele teistele asjakohastele sä...

Страница 168: ...et de essentiële eisen en de andere relevante bepalingen van richtlijn 1999 5 EG Malti Maltese Hawnhekk 3Com Corporation jiddikjara li dan RLAN device jikkonforma mal htigijiet essenzjali u ma provvedimenti ohrajn relevanti li hemm fid Dirrettiva 1999 5 EC Magyar Hungarian Alulírott 3Com Corporation nyilatkozom hogy a RLAN device megfelel a vonatkozó alapvetõ követelményeknek és az 1999 5 EC irány...

Страница 169: ... only permitted using the 2 46 2 4835 GHz band Channel 13 In France outdoor operation is only permitted using the 2 4 2 454 GHz band Channels 1 7 BRAZIL RF COMPLIANCE Este equipamento opera em caráter secundário isto é não tem direito a proteção contra interferência prejudicial mesmo de estações do mesmo tipo e não causar interferência a sistema operando em caráter primário TAIWAN NCC STATEMENT SA...

Страница 170: ...168 ...

Страница 171: ...Guide 8 text About This Guide 8 D DDNS 70 DHCP 87 DHCP Clients List 42 DHCP server 25 42 disabling 26 DMZ Screen 67 DNS 24 DNS Screen 55 DSL mode 29 Dynamic Domain Server DDNS Screen 70 Dynamic IP Address 34 Dynamic Fixed IP for Bridge Mode Screen 35 55 DYNDNS 70 E Editing DHCP Clients List Screen 42 Encryption Screen 44 Encryption disabling 45 F Firewall Screen 59 Forgotten Password 80 H Hostname...

Страница 172: ...e Screen 59 S Schedule Rule Screen 65 Setup Wizard 27 SNMP Community Screen 71 SNMP Trap Screen 72 Special Applications Screen 60 Specifications technical 89 SSID 31 32 33 35 36 43 Static Addressing 87 Static Route Parameters Screen 57 Status Screen 28 40 Subnet Mask 85 T TCP IP 23 25 85 Technical specifications 89 standards 89 Time and Time Zone screen 76 TZO com 70 U Universal Plug and Play 68 U...

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