HEDWG3005BACCWireless Cable/DSL Gateway 3CRWE51196

http://www.3com.com/ Part No. DUA5119-6AAA01 Published April 2002 OfficeConnect ® Wireless Cable/DSL Gateway User Guide 3CRWE51196 3Com Corporation 5400 Bayfront Plaza Santa Clara, California 95052-8145 Copyright © 2002, 3Com Technologies. All rights reserved. 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C ONTENTS A BOUT T HIS G UIDE Naming Convention7 Conventions7 Feedback about this User Guide8 Related Documentation8 Product Registration8 1 I NTRODUCING THE O FFICE C ONNECT W IRELESS C ABLE /DSL G ATEWAY OfficeConnect Wireless Cable/DSL Gateway9 Wireless Cable/DSL Gateway Advantages10 Package Contents10 Minimum System and Component Requirements11 Front Panel11 Rear Panel13 2 H ARDWARE I NSTALLATION Introduction15 Safety Information15 Positioning the Gateway15 Using the Rubber Feet16 Before you Install your Gateway16 Powering Up the Gateway16 Connecting the Wireless Cable/DSL Gateway16 3 S ETTING U P Y OUR C OMPUTERS Obtaining an IP Address Automatically19 Windows 200019 Windows XP20 Windows 95/98/ME20 Macintosh20 PPPoE Client Software21 Web Proxy Settings21 4 R UNNING THE S ETUP W IZARD Accessing the Wizard23 Password25 Timezone26 WAN Settings26 PPPoE Mode26 Dynamic IP Address Mode27 Static IP Mode28 LAN Settings28 DHCP28 Summary30 5 G ATEWAY C ONFIGURATION Navigating Through the Gateway Configuration Pages31 Main Menu31 Option Tabs31 Getting Help31 Welcome Screen32 Notice Board32 Password32 Changing the Administration Password33 Wizard33 LAN Settings33 Unit Configuration33 DHCP Clients List34 Wireless Settings35 Wireless Configuration35 Channel Selection35 Service Area Name/SSID35 Encryption36 Wireless Encryption Type36 Encryption Keys36 Connection Control38 Connected Client List38 Modifying a MAC Address39 Deleting a MAC Address40 Connected Clients List40 Internet …

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5 GATEWAY CONFIGURATION Navigating Through the Gateway Configuration Pages This chapter describes all the screens available through the Gateway configuration pages, and is provided as a reference. To get to the configuration pages, browse to the Gateway by entering the URL in the location bar of your browser. The default URL is http://192.168.1.1, but if you changed the Gateway LAN IP address during initial configuration, use the new IP address instead. When you have browsed to the Gateway, login using your system password (default admin). Main MenuAt the left side of all screens is a main menu, as shown in Figure 24 on page 32. When you click on a topic from the main menu, that page will appear in the main part of the screen.
Welcome - displays the firmware version of the Gateway, allows you to change your password, and launch the Wizard
LAN Settings - allows you to configure IP address and subnet mask information, setup DHCP server parameters, and display the DHCP client list.
Wireless Settings - enables / disables access from wireless computers, and provides facilities for improving the security of the wireless network.
Internet Settings - sets up Internet addressing modes such as PPPoE connection, dynamic IP address allocation and static IP address settings
Firewall - allows configuration of the Gateway’s firewall features: Virtual Servers, Special Applications, PCs Privileges and security options
System Tools - allows the administrator to perform maintenance activities on the Gateway.
Status and Logs - displays the current status and activity logs of the Gateway.
Support - contains a comprehensive online help system Option TabsEach corresponding menu page may also provide sub-sections which are accessed through the use of tabs (see Figure 24 for example). To access a sub-section, simply click on the required tab. Getting Help On every screen, a Help button is available that provides access to the context-sensitive online help system. Click this button for further assistance and guidance relating to the current screen. 32C HAPTER 5: G ATEWAY C ONFIGURATION Welcome Screen Figure 24 OfficeConnect Wireless Cable/DSL Gateway Welcome Screen The Welcome section allows you to view the Notice board and to change your Password. You can also gain access to the Configuration Wizard. (See "Accessing the Wizard" on page 23 for details.) Notice Board Figure 25 Notice Board Screen The Notice Board is used to display configuration warning messages. For example, you would be warned if you had disabled the Firewall. Password Figure 26 Password Screen LAN Settings33 Changing the Administration Password You can change the password to prevent unauthorized access to the Administration System. To do this: 1Enter the current password in the Old Password field 2Enter the new password in the New Password field 3Enter the new password again in the Confirm Password field 4Click Apply to save the new password The password is case sensitive. If you have forgotten your password you can reset the Gateway. See "Forgotten Password" on page 56. Wizard Figure 27 Wizard Screen Click the WIZARD... button to launch the configuration wizard. Refer to Chapter 4 for information on how to run the wizard. LAN Settings Unit Configuration Figure 28 Unit Configuration Screen 34C HAPTER 5: G ATEWAY C ONFIGURATION The LAN Settings screen is used to specify the LAN IP address of your Gateway, and to configure the DHCP server. 1Select Unit Configuration and then specify the Gateway IP Address and Subnet Mask in the LAN Settings field. The default IP address of the Gateway is 192.168.1.1. 2If you want to use the OfficeConnect Wireless Cable/DSL Gateway as a DHCP Server, click in the Enable check box. 3Clicking on Auto Range button will generate the IP pool address from 192.168.1.2 to 192.168.1.254 for the DHCP Server Parameters field. Auto Range will automatically choose the largest available range of addresses. 4Check all of your settings, and then click Apply. The DHCP server will give out addresses to both wired and wireless clients. DHCP Clients List Figure 29 DHCP Clients List Screen The DHCP Clients List provides details on the devices that are connected to the LAN. The list is only created when the Gateway is setup as a DHCP server. For each device that is connected to the LAN, the IP address, Host Name and MAC address of that device is displayed. As you connect more devices to the LAN, the client list will grow to a maximum number of clients, which is determined by the IP address range. The Release button allows the lease time for the IP address that has been issued to a device to be cleared. The lease time is set at 12 hours. If a PC has been switched off, using the Release Button would allow the 12 hour lease time to be cleared. The IP address would then be available for another device if there were no other IP addresses available. As the IP address is fixed to a MAC address, then each particular computer will normally be issued with the same IP address. The only time that a PC will get a different IP address is if the unit is reset to factory defaults or the DHCP server has run out of IP addresses. Wireless Settings35 Wireless Settings Wireless Configuration Figure 30 Wireless Configuration Screen Enable Wireless Networking Allows you to enable/disable the wireless section of your LAN. When disabled, no wireless PCs can gain access to either the Internet or other PCs on your Wired or Wireless LAN. Channel Selection The Channel Selector allows you to specify which Channel the Gateway will transmit and receive on. If someone else 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. Valid Channels are 1- 13. Usually the Wireless computers will scan to find the correct channel, but if they don't you must configure them to use the same Channel number as the Gateway. Service Area Name/SSID …

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46C HAPTER 5: G ATEWAY C ONFIGURATION Figure 45 Special Application Settings Screen Or select Other to specify a suitable name for the special application and then enter a value in the Trigger and Incoming Ports text boxes (Figure 45). These values correspond to the outbound port number issued by the application. The port numbers are specified using a comma-separated list, with hyphens to denote port number ranges. So for example, entering 2, 3, 5-7 would cause ports 2, 3, 5, 6, and 7 to be activated. The Gateway will automatically allow FTP and NetMeeting sessions. You do not need to configure these as Special Applications. Figure 46 Other Applications Setup Screen 3Click Add to save your settings. Only one computer on your network can be configured for special access at any one time. PCs Privileges Figure 47 PC Privileges Screen Select PC Privileges to display the PCs Privileges setup screen (Figure 47). Access from the local network to the Internet can be controlled on a computer-by-computer basis. In the default configuration the Gateway will allow all connected computers unlimited access to the Internet. Firewall47 PCs Privileges allows you to assign different access rights for different computers on your network. To use access control for all computers: 1Click in the PCs access authorized services only radio button. 2Select All PCs to setup the access rights for all computers connected to the Gateway. 3Select authorized services by clicking in the appropriate check box(es) (Figure 48). Figure 48 All PCs Setup Screen 4Access rights allow or deny users access to specified TCP and UDP ports. TCP and UDP ports correspond to specific Internet services, such as browsing the Internet or accessing news groups. Activating Allow will give the particular users access to the service(s) you indicate in step 5 (see below). Activating Block denies access to the services chosen in step 5. 5Select the service(s) to allow or block by clicking in the appropriate check box(es), and then specify the port number for corresponding services. If you wish to deny access to all services for all computers, click Block for All other services. 6Click Modify to save the settings. To assign different access rights for different computers: 1Click in the PCs access authorized services only radio button. 2Click on the New button to display PC Privileges setting screen. 3Enter the last digit(s) of the IP address of the computer in the PC’s IP Address text box. 4Select authorized services by clicking in the appropriate check box(es) (Figure 49). 48C HAPTER 5: G ATEWAY C ONFIGURATION Figure 49 PC Privileges Setup Screen 5Activate the Allow or Block radio buttons. Select the service(s) to allow or block by clicking in the appropriate check box(es), and then specify the port number for corresponding services. If you wish to deny access to all services for all PCs, click Block for All other services. 6Click Add to save the settings. 7Check all of your settings, and then click Apply. SecuritySelect Security to display the Advanced Settings screen (Figure 50). Figure 50 Security Screen The Internet connects millions of computer users throughout the world. The vast majority of the computer users on the Internet are friendly 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. Allow PING from the InternetPING is a utility, which is used to determine whether a device is active at the specified IP address. PING is normally used to test the physical connection between two devices, to ensure that everything is working correctly. By default the Gateway has PING disabled in order to make the device more difficult to find on the Internet and less prone to attack. This feature is enabled by clicking on the check box so that a tick can be seen and then pressing the Apply button. System Tools49 3Com recommends that you leave this disabled. Disable FirewallThe Gateway contains a firewall that detects attack patterns used by hackers on the Internet and once detected will block their access to your network. When an attack is detected a log entry will be generated and the Alert LED will be lit for 2 seconds. The firewall will block Internet access to all unused ports. The Firewall is disabled by clicking on the check box so that a tick can be seen and then pressing the Apply button. 3Com recommends that you leave this enabled. Enabling Remote AdministrationIt is possible to administer the Gateway from the Internet. To do this: 1Check the Enable administration from an Internet Host box 2For added security, you may specify the IP address of the remote system. This will prevent other remote hosts from accessing the administration pages. If you wish to allow any remote host to administer the Gateway, type 0.0.0.0 in the Host IP Address box. 3To remotely administer your Gateway, enter http://xxx.xxx.xxx.xxx:8000 in the location bar of the browser running on the remote computer, where xxx.xxx.xxx.xxx is the Internet IP address of the Gateway. You may then login using the administration password. System Tools After you have completed all basic setup procedures in the Welcome Wizard section, you can go in later and change individual settings at any time by using the System Tools. The main frame of the System Tools screen includes four administration items: Restart, Time Zone, Configuration, and Upgrade (Figure 51). Restart Figure 51 Restart Screen If your Gateway is not operating correctly, you can choose to restart the Gateway. Pressing the Restart the Gateway button will cause the Gateway to restart, simulating the effect of power cycling the unit. No configuration information 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 50C HAPTER 5: G ATEWAY C ONFIGURATION network users who are currently accessing the Internet will have their acce…

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A USING DISCOVERY Running the Discovery Application 3Com provides a user friendly Discovery application for detecting the OfficeConnect Wireless Cable/DSL Gateway on the network. Windows Installation (95/98/2000/Me/NT) 1Insert the Gateway CD-ROM in the CD-ROM drive on your computer. A menu will appear; select Gateway Discovery. Note: Discovery will find the Gateway even if it is unconfigured or misconfigured. Figure 57 Discovery Welcome Screen 2When the Welcome screen is displayed click on Next and wait until the application discovers the Gateways connected to your LAN. Figure 58 Discovered Gateway Screen 62A PPENDIX A: U SING D ISCOVERY 3Figure 59 shows an example Discovered Devices screen. Highlight the Wireless Cable/DSL Gateway by clicking on it, and press Next. Figure 59 Discovery Finish Screen 4Click on Finish to launch a web browser and display the login page for the Gateway. B IP ADDRESSING The Internet Protocol Suite The Internet protocol suite consists of a well-defined set of communications protocols and several standard application protocols. Transmission Control Protocol/Internet Protocol (TCP/IP) is probably the most widely known and is a combination of two of the protocols (IP and TCP) working together. TCP/IP is an internationally adopted and supported networking standard that provides connectivity between equipment from many vendors over a wide variety of networking technologies. Managing the Cable/DSL Gateway over the Network To manage a device over the network, the Cable/DSL Wireless Gateway 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 is a decimal number between 0 and 255 and x is a number between 1 and 254 inclusive. However, an IP Address alone is not enough to make your device operate. In addition to the IP address, you need to set a subnet mask. All networks are divided into smaller sub-networks and a subnet mask is a number that enables a device to identify the sub-network to which it is connected. For your network to work correctly, all devices on the network must have:
The same sub-network address.
The same subnet mask. The only value that will be different is the specific host device number. This value must always be unique. An example IP address is ‘192.168.100.8’. However, the size of the network determines the structure of this IP Address. In using the Gateway, you will probably only encounter two types of IP Address and subnet mask structures. Ty p e O n e In a small network, the IP address of ‘192.168.100.8’ is split into two parts:
Part one (‘192.168.100’) identifies the network on which the device resides.
Part two (‘.8’) identifies the device within the network. 64A PPENDIX B: IP A DDRESSING 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 Wireless Cable/DSL Gateway might be configured. Ta b l e 3 IP Addressing and Subnet Masking Ty p e Tw o In larger networks, where there are more devices, the IP address of ‘192.168.100.8’ is, again, split into two parts but is structured differently:
Part one (‘192.168’) identifies the network on which the device resides.
Part two (‘.100.8’) identifies the device within the network. This type of IP Address operates on a subnet mask of ‘255.255.0.0’. See Table 4 for an example about how a network (only four computers represented) and a Wireless Cable/DSL Gateway might be configured. Ta b l e 4 IP Addressing and Subnet Masking How does a Device Obtain an IP Address and Subnet Mask? There are three different ways to obtain an IP address and the subnet mask. These are:
Dynamic Host Configuration Protocol (DHCP) Addressing
Static Addressing
Automatic Addressing (Auto-IP Addressing) DHCP AddressingThe Wireless Cable/DSL Gateway contains a DHCP server, which allows computers on your network to obtain an IP address and subnet mask automatically. DHCP assigns a temporary IP address and subnet mask which 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 subnet mask will never be duplicated for devices on the network. DHCP is particularly useful for networks with large numbers of users on them. DeviceIP AddressSubnet Mask PC 1192.168.100.8255.255.255.0 PC 2192.168.100.33255.255.255.0 PC 3192.168.100.188255.255.255.0 Wireless Cable/DSL Gateway 192.168.100.72255.255.255.0 DeviceIP AddressSubnet Mask PC 1192.168.100.8255.255.0.0 PC 2192.168.201.30255.255.0.0 PC 3192.168.113.155255.255.0.0 PC 4192.168.002.230255.255.0.0 Wireless Cable/DSL Gateway 192.168.002.72255.255.0.0 How does a Device Obtain an IP Address and Subnet Mask?65 Static AddressingYou must enter an IP Address and the subnet mask manually on every device. Using a static IP and subnet mask means the address is permanently fixed. Auto-IP AddressingNetwork devices use automatic IP addressing if they are configured to acquire an address using DHCP but are unable to contact a DHCP server. Automatic IP addressing is a scheme where devices allocate themselves an IP address at random from the industry standard subnet of 169.254.x.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 was introduced by Microsoft in the Windows 98 operating system and is also supported in Windows 2000. 66A PPENDIX B: IP A DDRESSING C TECHNICAL SPECIFICATIONS This section lists the technical specifications for the OfficeConnect Wireless Cable/DSL Gateway. InterfacesCab…

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Accton Technology Corporation No.1 Creation Rd. III, Science – based Industrial Park, Hsin Chu300, Taiwan, R.O.C. Tel:886-5770270 Fax:886-3-5783839 Inform Letter Dear Customer, According to FCC’s regulation, the following Declaration of Conformity has to be made by a company located in USA. They are: This device has been confirmed to be in compliance with the requirements of ANSI C63.4 & FCC part 15 regulations. The test result has been shown in the ADT test report with number RF910425R01. And this compliance is subject to the following two conditions: This device may not cause harmful interference and, This device must accept any interference received, including interference that may cause undesired operation. This declaration can be a separate sheet and be sure that the following message will be also included in this declaration: Product name, model name and trade name. Company name, and address of the one who is responsible for this declaration. Name, title, telephone and fax number as well as the signature of the contact person. Thanks for your attention.

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FCC ID: HEDWG3005BACC ADT No.910425R01 Operational Description The transmitter of the EUT is powered by power adapter and connected with PC through RJ45 port. The antenna used in this product is Dipole Antenna. The antenna connector is MMCX connector. Under normal use condition, the user has to keep at least 20cm separation distance between radiator and the body of the user. The other instruction, please have a look at the users manual. DSSS Information This device is Direct Sequence Spread Spectrum, the data is mixed by pseudorandom code which is an orthogonal code. The mixed data is digital modulated by BPSK and QPSK technique depends on the data rates. The CCK coding is applied for increasing the data rate, and also the processing gain will be increased. The bit rates are 1,2,5.5,11,22Mbps.

FCC ID: HEDWG3005BACC ADT No.: 910425R01 FCC TEST REPORT REPORT NO.: RF910425R01 MODEL NO.: 3CRWE51196 ACCORDING: FCC Guidelines for Human Exposure IEEE C95.1 APPLICANT:ACCTON TECHNOLOGY CORPORATION ADDRESS:No. 1, Creation Rd., III, Science-Based Industrial Park, Hsinchu, Taiwan, R.O.C. ISSUED BY:Advance Data Technology Corporation LAB LOCATION:47 14th Lin, Chiapau Tsun, Linko, Taipei, Taiwan, R.O.C. 0528 ILAC MRA Lab Code: 200102-0 FCC ID: HEDWG3005BACC ADT No.: 910425R01 RF Exposure Measurement (Mobile Device) 1. Introduction 2.4 GHz frequency band is regarded specially as a dangerous band for its heating harmfulness to the human body. That’s why microwave oven is operating in this frequency band. The manufacturer whose product is working in this frequency band is obligatory to prove the harmfulness of his product. In this document, we try to prove the safety of radiation harmfulness to the human body for our product. The limit for Maximum Permissible Exposure (MPE) specified in FCC 1.1310 is followed. The Gain of the antenna used in this product is measured in a Fully Anechoic Chamber (FAC), and the maximum total power input to the antenna is measured. Through the Friis transmission formula and the maximum gain of the antenna, we can calculate the distance, away from the product, where the limit of MPE is reached. 2. Classification The antenna of the product, under normal use condition, is at least 20 cm away from the body of the user. Warning statement for keeping 20 cm separation distance and the prohibition of operating next to a person has been printed on the users manual. So, this product is classified as the Mobile Device. 3. RF Exposure Limit According to FCC 1.1310: The criteria listed in the following table shall be used to evaluate the environmental impact of human exposure to radio-frequency (RF) radiation as specified in 1.1307(b). FCC ID: HEDWG3005BACC ADT No.: 910425R01 LIMITS FOR MAXIMUM PERMISSIBLE EXPOSURE (MPE) Frequency Range (MHz) Electric Field Strength (V/m) Magnetic Field Strength (A/m) Power Density (mW/cm 2 ) Average Time (minutes) (A)Limits For Occupational / Control Exposures 30-30061.40.1631.06 300-1500......F/3006 1500-100,000......56 (B)Limits For General Population / Uncontrolled Exposure 30-30027.50.0730.230 300-1500......F/150030 1500-100,000......1.030 F = Frequency in MHz 4. Friis Formula Friis transmission formula : Pd = (Pout*G) / (4*pi*r 2 ) where Pd = power density in mW/cm 2 Pout = output power to antenna in mW G = gain of antenna in linear scale Pi = 3.1416 R = distance between observation point and center of the radiator in cm Pd is the limit of MPE, 1 mW/cm 2 . If we know the maximum Gain of the antenna and the total power input to the antenna, through the calculation, we will know the distance r where the MPE limit is reached. Ref. : David K. Cheng, Field and Wave Electromagnetics, Second Edition, Page 640, Eq. (11-133). 5. EUT Operating condition The software provided by Manufacturer enabled the EUT to transmit and receive data at lowest, middle and highest channel individually. FCC ID: HEDWG3005BACC ADT No.: 910425R01 6. Test Results 6.1 Antenna Gain The maximum Gain measured in Fully Anechoic Chamber is 1Bi or 1.26 (numeric). 6.2 Output Power Into Antenna & RF Exposure Distance : CHANNEL CHANNEL FREQUENCY (MHz) OUTPUT POWER TO ANTENNA (mW) MINIMUM ALLOWABLE DISTANCE ( r ) FROM SKIN (Centi-Meter) 1241243.352.08 6243745.812.14 11246234.431.86 The minimum allowable distance is very close to the enclosure of the antenna. So, the user has no need to worry about the harmfulness of radiation. But it is recommended to always keep, at least, 20 cm separation distance with the antenna.

FCC ID: HEDWG3005BACC Report No.: RF910425R01 1 Issued: May 9, 2002 FCC TEST REPORT REPORT NO.: RF910425R01 MODEL NO.: 3CRWE51196 RECEIVED: April 25, 2002 TESTED: April 25 ~ May 3, 2002 APPLICANT:ACCTON TECHNOLOGY CORPORATION ADDRESS:No. 1, Creation Rd., III, Science-Based Industrial Park, Hsinch…

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