3Com 3CRWDR200B-75 инструкция обслуживания

http://www.3com.com/ Part No. 10015251 Rev . AB Published August 2008 Of ficeConnect® ADSL W ir eless 108Mbps 11g Fir ewall Router User Guide Model WL-553 3CRWDR200A-75 3CRWDR200B-75[...]

3Com Corporati o n 350 Campus Drive Marlborough, M A USA 01752-3064 Copyright © 2 008, 3Com Corporation. All rights r eserved . No part of this documen tation may be repr oduced in any form or by any means or us ed to make any derivative work (such as translati on, transformation, or adaptation) without writt en permission fr om 3Com Corporatio n.[...]

C ONTENTS A BOUT T HIS G UIDE Naming Convention 9 Conventions 9 Related Documenta tion 10 1 I NTRODUCING THE R OUTER OfficeConnect ADSL W ireless 108Mbps 11g Firewall Router 11 Firewall R outer Advantages 13 Package Contents 13 Minimum System and Co mponen t Requirements 14 Front Panel 14 Rear Panel 16 2 H ARDWAR E I NSTALLATION Introduction 19 Saf[...]

W indows 95 /98/ME 27 Macintosh 28 Disabling PPPoE and PPTP Client S oftware 28 Disabling Web Pr oxy 29 4 R UNNING THE S ETUP W IZARD Accessing the Wizard 31 Wel c om e 3 3 Password 34 Tim e Z on e 35 W AN S ettings 36 LAN Settings 41 DHCP 41 Wireless Settings 42 Summary 44 5 R OUTER C ONFIGURATION Navigating Thr ough the Router Conf iguration Page[...]

Firewall 66 Virtual Servers 66 Special Applications 68 DMZ 69 SPI 70 PC Privileges 71 Schedule Rules 72 Content Filter 73 URL Filter 74 System T ools 76 Restart 77 Time Zone 78 Configuration 79 Upgrade 80 Advanced 81 Static Route 81 RIP 81 DDNS 82 Quality of Service 84 Proxy ARP 84 IPSec 85 Port Mapping 87 Management 88 Syslog 88 SNMP 89 UPnP 90 T [...]

Support 98 Feedback 99 6 T R OUBLESHOOTING Basic Connection Checks 101 Browsing to the Router Configur ation Screens 101 Connecting to the Internet 102 Forgotten Pa ssword and Reset to Fact ory Defaults 102 W ireless Networking 103 Power LED or Power Adap te r OK LED Not Lit 105 Replacement Power Adapters 105 Alert LED 106 Recovering from Corru pte[...]

Cable Specifications 119 D S AFETY I NFORMATION Important S afety Inform ation 1 21 Wichtige S icherheitshinweise 122 Consignes importan tes de sécurité 123 E E ND U SER S OFTWARE L ICENSE A GREEMENT G LOSSARY I NDEX R EGULATORY N OTICES Regulatory Information 137 CAUTION: EXPOSURE TO RADIO FREQUENCY RADIA TION. 137 US - Radio Freq uency Requirem[...]

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A BOUT T HIS G UIDE This guide describes how to install and configure the OfficeConnect ADSL Wi reless 108Mbps 11g Firewall Router (3CRWDR200A-75 an d 3CRWDR200B-75). This guide is intended for use by th ose responsible for installing and setting up network equipment; consequ ently , it assu mes a basic working knowledge of LANs (Local Area Network[...]

10 C HAPTER : A BOUT T HIS G UIDE Related Documentation In addition to this guide, each Router document set includes one Installation Guide. This guide contains the instructions you need to install and configure your Router . Caution Information that alerts you to potential loss of data or potential damage to an application, system, or dev ice. War[...]

1 I NTR ODUCING THE R OUTER We lcome to the world of n etworki ng with 3Com®. In the modern business environment, communication a nd sharing information is crucial. Computer networks have proved to be one of the fastest modes of communicatio n but, until r ecently , only large businesses coul d affor d the networking advantage. The OfficeC onnect?[...]

12 C HAPTER 1: I NTRODUCING THE R OUTER Figure 1 Example Network Without a Firewall Router When you use the Firewall Router in your network ( Figure 2 ), it becomes your connection to t he Inter net. Conne ctions can be made directly to the Router , or to an OfficeConnect Switch or Hub, expanding the number of computers you can have in your network[...]

Firewall Router Advantages 13 Firewall Router Advantages The advantages of t he Firewall ADSL Wireless 108Mbps 11g Firewall Router include: ■ Shared Internet connect ion for both wired and wireless computers ■ High speed 802.11g wireless networking ■ No need for a dedicated, “always on” computer serving as your Interne t connection ■ Cr[...]

14 C HAPTER 1: I NTRODUCING THE R OUTER ■ One W arranty Flyer If any of these it ems are missing or da maged, please cont act your retailer . Minimum System and Component Requirements Y our Router requir es that the computer(s) an d components in your network be configured with at least the following: ■ A computer with an operating system that [...]

Front Panel 15 ■ The Router has just been started up a nd is runnin g a self-test routine, or ■ The administrator ha s invoked the Reset to Factory Defaults command, or ■ The system software is in the process of being upgraded In each of these cases, wait un til the Router has completed the cu rrent operation and the alert LED is Off. Flashin[...]

16 C HAPTER 1: I NTRODUCING THE R OUTER The LED lights up and stays on when the connectio n between ADSL service and the Router is OK. If the LED is off, nothing is connected or there is a problem ( refer to Chapter 6 “T roubleshooting” ). 6 Data DSL Status LED If the LED is flashing, the link is OK and data is being transmitted or received ove[...]

Rear Panel 17 Only use the power adapter supplied with this Rout er . Do no t use any other adapter . 10 Power Adapter OK LED Green Indicates that the power adapter is supplying power to the Router . If the LED is off, there may be a pr oblem with the power adapter or adapter cable. 11 Reset Button Press this button to r eset your Router to factory[...]

18 C HAPTER 1: I NTRODUCING THE R OUTER[...]

2 H AR DWARE I NSTALLATION Introduction This chapter will guide you thr ough a basic installation of the Router , including: ■ Connecting the Router to the Inter net. ■ Connecting the Router to your network. ■ Setting up your computers for networking with the Router . Safety Information WAR NI N G : Please read the “ Safety Information ” [...]

20 C HAPTER 2: H ARDWARE I NSTALLATION When positioning your Router , ensure: ■ It is out of direct sunlight and away from sour ces of heat. ■ Cabling is away from power lines, fluor escent lighting fixtures, and sources of electrical noise such as radios, transmitters and broadband amplifiers. ■ W ater or moisture cannot enter the case of th[...]

Before you Instal l your Router 21 When making connections, be careful not to push t he unit up and off th e wall. CAUTION: Only wall mount single unit s, do not wall mount stacked units. Before you Install your Router Before you install and configur e your Router , you need the following additional information. If you do not have this in formation[...]

22 C HAPTER 2: H ARDWARE I NSTALLATION If your ISP allocates IP information dynamically over a protocol oth er than PPPoE, you do n ot need any f urther information. T his configuration is typical of cable connections. Powering Up the Router T o power up the Router : 1 Plug the power adapter into the power adapter socket located on the back pane l [...]

Connecting the Router 23 Y ou have now completed the hardware installation of your Router . Next you need to set up your computers so that they can make use of the Router to communicate with the Internet. 3Com recommends that you perform the initial Router configuration from a computer that is dir ectly connected to one of the LAN ports. If you con[...]

24 C HAPTER 2: H ARDWARE I NSTALLATION[...]

3 S ETTING U P Y OUR C OMPUTERS The Router has the ability to dynamica lly allocate netw ork addr esses to the computers on your network, usi ng DHCP . However , your computers need to be configured correctly for this to take place. T o change the configuration of your compu ters to a llow this, follow the instructions in this chapter . If your com[...]

26 C HAPTER 3: S ETTING U P Y OUR C OMPUTER S Figure 6 Local Ar ea Properties Scr een 6 Ensure that the opt ions 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 Scr een 7 Restart your computer .[...]

Obtaining an IP Address Automatically 27 Windows Vista If you ar e using a W indows V ista computer , use the following procedure to change your TCP/IP settings: 1 From the Windows start menu, select Network. 2 Select Network Center option from the top menu. 3 Select Manage Networks from the left panel. 4 Double click on the Local Ar ea Co nnection[...]

28 C HAPTER 3: S ETTING U P Y OUR C OMPUTER S Macintosh If you are using a Macintosh computer , use the followin g procedur e to change your TCP/IP sett ings: 1 From the desktop, select Apple Menu , Control Panels , and TCP/IP . 2 In the TCP/IP contr ol panel, set Connect Via: to “Ethernet”. 3 In the TCP/IP control panel, set Configure: to “U[...]

Disabling Web Proxy 29 Disabling Web Proxy Ensure that you do not have a web pr oxy enabled on your computer . Go to the Control Panel and click on Intern et Options . Select the Connections tab and click LAN Settings at the bottom. Make sure that the Use Proxy Server option is unchecked.[...]

30 C HAPTER 3: S ETTING U P Y OUR C OMPUTER S[...]

4 R UNNING THE S ETUP W IZAR D Accessing the Wizard The Router setup program is Web-based, which means that it is accessed through your W eb browser (Netscape Navigator 4.7 or higher , Inter net Explorer 5.0 or higher , or Mozilla 1.2.1 or higher). T o use the Setup W izard: 1 Ensure that you have at least one computer connected to the Router . Ref[...]

32 C HAPTER 4: R UNNING THE S ETUP W IZARD Figure 10 Router Login Scr een 5 If the password is corr ect, the Country Selection screen will appear . Select the country you wish to configure the Router for , then click Apply . If you purchased your Router in the United St ates, you do not see this screen, as it is automatic ally set. Figure 11 Countr[...]

Accessing the Wizard 33 6 When you have selected a c ountry either: ■ The We lc o m e screen will appear ( Figure 12 ). Select the Wiza rd tab and click Wi za rd . or ■ If your Router has not been conf igur ed befor e, the Wi zard will launch automatically (refer to Figure 13 ). 7 Click Next . 8 Y ou will be guided step-by-step through a basic [...]

34 C HAPTER 4: R UNNING THE S ETUP W IZARD Figure 13 Wizard Screen Password Figur e 14 Change Administration Password Scr een When the Change Administration Password screen appear s, type the Old Password , then a new password in both the New Password and Confirm Password boxes.[...]

Accessing the Wizard 35 3Com recommends entering a new password when setting up the Router for the first time. The Router is ship ped from the factor y with a default password, admin . 1. Password is case sensitive. 2. Write the new password down and keep it in a safe place, so that you can change your settings in the fu ture. Click Next to display[...]

36 C HAPTER 4: R UNNING THE S ETUP W IZARD W AN Settings Figure 16 Internet Settings Screen This Intern et Addressing Mode window allows you to s et up the Rou ter for the type of Inter net connectio n you have. Before setting up your Internet connection mode, have the account information from your ISP rea d y . Select an Inter net Addressing mode [...]

Accessing the Wizard 37 PPPoE Mode Figure 17 PPPoE Scr een T o setup the Router for use with a PP P over Ether net (PPPoE) connection, use the following procedur e: 1 Enter your PPP user name in the PPPoE User Name text box. 2 Enter your PPP password in the PP PoE Password text box. 3 Enter your PPP over Ethernet service name in the PPPoE Service N[...]

38 C HAPTER 4: R UNNING THE S ETUP W IZARD PPPoA Mode Figure 18 The PPPoA Scr een T o setup the Router for use with a PPPoA connection: 1 Enter your PPP over A TM user name in the PPP User Name text box. 2 Enter your PPP over A TM password in the PPP Pa ssword text box. 3 Select Dial on Demand if you want the inter net connection dropped when there[...]

Accessing the Wizard 39 Dynamic/Fixed IP in 1483 Bridge Mode Figure 19 The Dynamic/Fixed IP in Bridge Mode T o setup the Router for use with a Dynamic/Fixed IP in 1483 Brid ge Mode connection, use the following procedure: 1 Manual IP Addr ess Configuration: Y ou may enter the router’ s W AN IP address and subnet mask here if your ISP has given yo[...]

40 C HAPTER 4: R UNNING THE S ETUP W IZARD IP over A TM Mode(IPoA) Figure 20 The IP over A TM Screen T o set up the Router for use with an IPoA mode, use the following procedur e: 1 W AN IP Ad dress: Enter the IP Address given by your ISP . 2 W AN Subnet Mask: Enter the subnet mask given by your ISP . 3 Manual Default Gateway Config uration: Select[...]

Accessing the Wizard 41 Bridging Mode Figure 21 Bridging Mode Scr een Wi th bridging the router simply acts like a modem. The router passes traffic through to another device, usually a computer or a r outer , which handles authentication with the ISP . LAN Settings Figure 22 LAN IP Addr ess Screen This screen displays a suggested LAN IP address and[...]

42 C HAPTER 4: R UNNING THE S ETUP W IZARD Figure 23 DHCP Server Setup Scr een T o activate the DHCP Se rver option, select Enable the DHCP server with the following settings: and specify the IP pool range. The largest available continuous IP pool will be automatically en ter ed; if this is not appr opriate, make your required changes. T o disable [...]

Accessing the Wizard 43 the Router to automatically select an available channel when first powered on. The Service Area Name default for 3Com pr oducts is “3Com”. Up to 32 (case sensitive) chara cters can be enter ed for the Service Ar ea Name. 3Com strongly r ecommends that y ou change the SSID to something other than the default. Click Next w[...]

44 C HAPTER 4: R UNNING THE S ETUP W IZARD Summary Figure 25 Configuration Summary Screen When you complete the Setup W izard, a configuration summary will display . 3Com recommends that you verify the c onfigurati on informa tion of the Router and then print this page for your recor ds. Click Finish and the router will reboot now . If you have mad[...]

5 R OUTER C ONFIGURATION Navigating Through the Router Configuration Pages This chapter describes all the scr eens available through the Router configuration pages, and is provided as a r eference. T o get to the configuration pages, browse to the Router by entering the URL in the location bar of your browser . The defau lt URL is http://192.168.1.[...]

46 C HAPTER 5: R OUTER C ONFIGURATION ■ Advanced — allows you to monitor and configure the Router’ s advanced features, including Static Route, RIP , DDNS, IPSec, Proxy ARP , Port Mapping and QoS(Quality of Service). ■ Management — displays the current status and activity logs of the Router , SNMP enable/disable, and re mote management co[...]

Welcome Screen 47 The Notice Board is used to displa y firmware version and configuration warning messages. For example, you would be warn ed if you had disabled wireless networki ng or wireless encryption. Password Figur e 27 Password Scr een Changing the Administration Passwor d Y ou can chan ge the password to pr event unauthorized access to the[...]

48 C HAPTER 5: R OUTER C ONFIGURATION Wizard Figur e 28 Wizard Screen Click WIZARD... to launch the configuration wizard. Refer to Chapter 4 for information on how to run the wizard. LAN Settings The LAN Settings menu provides the following optio ns: Unit Configuration Figur e 29 Unit Configuration Screen[...]

LAN Settings 49 This screen allows you to change the IP address and subnet mask. 1 IP Address: Enter the IP Address for the router . 2 Subnet Mask: Enter the Subnet Mask for the router . 3 Enable DHCP server on the LAN: Chec k this box to enable the DHCP service on the router(enabled by default). The Firewall Router contains a Dyna mic Host C onfig[...]

50 C HAPTER 5: R OUTER C ONFIGURATION Static DHCP Assignment Figure 30 Static DHCP Assignment Screen T o assign a LAN client with a static IP Address, please do the following: 1 Enter the IP Address that you would like to lease and the client MAC address in the fields appropriately . The MAC Address must be enter ed as 6 hexadecimal pa irs, for exa[...]

Wireless Settings 51 DHCP Lease T able Figure 31 DHCP Lease T able Screen The DHCP Lease table scre en list the client’ s name, MAC Address, IP Addr ess and Expira tion time wh ich re flects the value specified in DHCP server setting in “ Unit Configuration ” on this c hapter . Wireless Settings The W ireless Settings menu pr ovides op tions [...]

52 C HAPTER 5: R OUTER C ONFIGURATION Configuration Figure 32 Configuration Scr e en Enable Wireless Networking Use this check box to enable or disabl e the wireless section of your LAN. When disabled, no wir eless PCs can gain access to either the Internet or other PCs on your W ired or W ireless LAN through this Router . Country Domain Please sel[...]

Wireless Settings 53 Choose the Auto option to automatically choose the clearest channel. The Router will check for the clearest channel whenever it is rebooted, powered up, and when the Clear Channel Select option is first applied. V alid channels are country dependent. See “Regulatory Notices” on page 137 for a list of channels approved by ea[...]

54 C HAPTER 5: R OUTER C ONFIGURATION Profile Support for NICs Y ou may save your wireless settings here by clicking Save Profile. Please choose Save to Disk option when a dialog box opens. Thus, you may save your wireless settings to an external f ile and later on use this file to import the settings with supported 3Com W ireless Network Cards. En[...]

Wireless Settings 55 WEP T o enable WEP , select WEP from the Encryption T ype . Figure 33 Encryption — WEP 1 Please choose from 64 bit s or 128 bits for the Encryption Strength . 2 Enter th e Passphrase which can be up to 31 character s long and may contain any alphanumeric characters in the field. 3 Click on Generate to generate 4 hex keys auto[...]

56 C HAPTER 5: R OUTER C ONFIGURATION Click Save to save the setting. WP A T o enable WP A, sele ct WP A-PSK or WP A2 -PSK from the Encr yption Ty p e . Figure 34 Encryption — WP A 1 Select either TKIP or AES as the En cr yption Method . 2 Enter a passphrase between 8 to 63 characters long for the Pre-Shared Key . 3 Enter the desired key r enewal[...]

Wireless Settings 57 Figure 35 Encryption — W AP/WP A2 with RADIUS 1 Select Encr yption Meth od from the dr op-down box. 2 Enter the frequency for Group Rekey Interval in seconds.. 3 Enter th e RADIUS Server IP address . 4 Enter th e RADIUS Port number . 5 Enter your RADIUS KEY here. Click Save to save the setting. WMM Y ou can en able W i-Fi Mul[...]

58 C HAPTER 5: R OUTER C ONFIGURATION Figure 36 WMM Scr een T ypically , voice and video traffic types ar e delay-sensitive, but are tolerant of some frame losses.On the othe r hand, data traf fic type is delay-tolerable, but re quires loss-free transmission. So you may adjust theses parameters with regard to th e characteristics of these types of [...]

Wireless Settings 59 priority , and hence the more capacity shar e for a given traffic condition.However , the probability of collisions increases when operating with smaller CWmin. These parame ter s can be used in or der to differ entiate the cha nnel access am ong different priority traf fic. EDCA ST A Par ameters: Each station maintains a Conte[...]

60 C HAPTER 5: R OUTER C ONFIGURATION Figure 37 Connection Contr ol Screen T o specify that only certain wir eless computers can connect to the Ro uter , select allow/deny , and then enter the MAC addresses of the wire less clients. Y ou may enter a maximum of 64 PCs in the list. Click Save to save your existing configurations or Cancel to discard [...]

Wireless Settings 61 Client List Figur e 38 Client List Screen The W ireless Client List pr ovides de tails on the devices t hat are connected to the W ireless LAN. The list is only cr eated when Wireless Networking is enabled. For each device that is c onnected to the Wi reless LAN, the MAC address and Connection Speed of that device is displayed.[...]

62 C HAPTER 5: R OUTER C ONFIGURATION Figure 39 Advanced Wireless Settings Screen Authentication T ype The d efault is set to Auto (Default), allows either Open System or Shared Key authenticati on to be used. Wi th Open System authentication, the sender an d the recipient do NOT use a WEP key for authentication. W ith Shared Key authentication, t [...]

Wireless Settings 63 Auto-Fallback feature. Auto-Fallback will negotiate th e best possible connection speed between the Router and a wireless client. The default value is Auto (Default). T ransmission Power (T ransmit Power Control) The gre ater the transmission power used, the larger the ar ea a wire less network covers. T o minimize the likeliho[...]

64 C HAPTER 5: R OUTER C ONFIGURATION Fragmentation Threshold This value specifies the maximum size for a packet before data is fragmente d into mul tiple packets. If you experience a high packet error rate, you may slightly increase the Fragmentation Threshold. Setting the Fragmentation Threshold too low may result in poor network performance. O n[...]

Internet Settings 65 Figure 40 WDS Scr een T o setup a WDS, make sure that the following conditions are met for all of the linked APs: 1 Both AP's WDS should be enabled. 2 APs are configured with the same Channel, SSID and Encryptions. 3 Each AP should have a different IP Addr ess. Internet Settings Befor e you can config ure the Router , you [...]

66 C HAPTER 5: R OUTER C ONFIGURATION 2 PPPoE PPP over Ethernet, provides routing for multiple PCs, this mode is often used for the DSL conn ection. T o configur e this function corr ectly , you should obtain the in formation from your ISP . 3 Dynamic/Fixed IP in 1483 Bridge Mode In this mode of connection, your ADSL router simply acts like a modem[...]

Firewall 67 Figure 41 Virtual Servers Scr een Virtual Server Activating and configuring a virtual se rver allows one or more of the computers on your network to function as a public server . For example, one of your computers could be configured as an F TP server , allowing others out side of your of fice network to downloa d files of your choo sin[...]

68 C HAPTER 5: R OUTER C ONFIGURATION Special Applications Figure 42 Special Applications Screen Some software applications r equire special or multiple connections to the Internet and these would normally be blocked by the firewall. For example Inter net T elephony or Video co nferences r e quire multiple connections. So that these special applica[...]

Firewall 69 5 Click Apply to save the configuration an d apply the changes. The Router will automatically allow F TP and NetMeeting sessions. Y ou do not need to configure thes e as Special Applications. Only one computer on your network can use the special application at any one time. DMZ Figure 43 DMZ Screen DMZ (De-Militarized Zone) Host is a co[...]

70 C HAPTER 5: R OUTER C ONFIGURATION Address and the corr esponding LAN IP Address in the fields and click Add to add the Entry . Click Apply/Reboot to apply your settings. SPI Stateful Packet Inspection (SP I) inspects, and if required blocks packets at the application layer . SPI also mainta ins TCP and UDP session information, including timeout[...]

Firewall 71 Email Alert: : Use this feature if you want the router to send you an email if a DoS attack has attempted. Connection Policy : These settings determine the timeouts between the router’ s recognizing and blocking DoS attempts before allowing legitimate traffic using these pr otocols to be permitted. Do not adjust these settin gs unless[...]

72 C HAPTER 5: R OUTER C ONFIGURATION T o use access control for the computers: 1 Enter the PC’ s description and th e range of the ip addresses. 2 Select to bypass the URL or Content Filter if you would like the clients to bypass the rules.(Please refer to the URL or Content Filter tab) 3 Please select to block spec ific servi ces or pr otocols.[...]

Firewall 73 Figure 46 The Schedule Rules Scr een 1 Click Add Rule at the Schedule Rules scr een. 2 Enter the Schedu le name and give a brief des cription. 3 Check the appropriate check box for ea ch day you want to block acces s, and enter the times for each day in 24-hour clock format. Content Filter Y ou can subscr ibe to the 3Com Conten t Filter[...]

74 C HAPTER 5: R OUTER C ONFIGURATION T o activate Content Filtering: 1 Select Firewall from the main menu, then select the Content Filter tab. The Content Filter screen displays. Figure 47 Content Filter Screen 2 Make sure the Enable Content Filter check box is chec ked. 3 Select the Content Filter Ser ver that you require from the dr op-down list[...]

Firewall 75 Figure 48 The URL Filter Screen T o enable the URL Filtering, please do the following: 1 Check the Enable URL Filtering Function box to enable the URL filtering. 2 Enter the URL or key words of the URL in the text fi eld for your desir ed website. T o filter a specific site, enter the UR L for that site. For exampl e, to stop your users[...]

76 C HAPTER 5: R OUTER C ONFIGURATION T o filter a generic keyword enter it into one of the fields. Y ou should exercise caution when choosing a keyword as many keywords ar e contained within other words. For example, filtering the word sex would filter the following example URLs: ■ www .sussex.com ■ www .thisexample.com Y ou can filter up to 3[...]

System Tools 77 Restart Figure 49 Restart Screen If your Router is not operating correctly , you can choose to restart the Router by selecting Restar t the Router , simulating the effect of power cycling the unit. No configuration inform ation will be lost but the log files will be erased. This function may be of use if you ar e experiencing proble[...]

78 C HAPTER 5: R OUTER C ONFIGURATION Time Zone Figur e 50 T ime Zone Screen Choose the time zone that is closest to your actual location. The time zone setting is used by the system clock when displaying th e correct time in the log files. If you use Daylight saving tick the Enable Day Light savings box, and then click Save . The Router reads the [...]

System Tools 79 Configuration Figure 51 Configuration Scr e en Select the Configuration tab to display the Configuration scr een. Backup Configuration Click BACKUP to save the curr ent Router configuration. Y ou will be pr ompted to downloa d and save a file to disk. Restore Configuration Data If you want t o reinstate the configuration settings pr[...]

80 C HAPTER 5: R OUTER C ONFIGURATION Upgrade Figure 52 Upgrade Scr een The Upgrade facility allows you to inst all on the Router any new r eleases of system software that 3Com ma y make available. T o install new software, you first need to download the software fr o m the 3Com support web site to a folder on your computer . Once you have done thi[...]

Advanced 81 Advanced Selecting Advanced from the main menu displays the following seven tabs in your Web br owser window: Static Route , RIP , DDNS , Quality of Service, ProxyARP , Port Mapping, and IPSec . Static Route The Router supports static route functionality . Select the Static Route tab to display the screen. Figure 53 Static Route scr een[...]

82 C HAPTER 5: R OUTER C ONFIGURATION that routing information r eplicated to all RIP enabled devices on the network. LAN and W AN interfaces ca n be configured independently of each other . Select the RIP tab to display the screen . Figure 54 RIP scr een Setting Up RIP Check the Enable RIP Mode check box if you want the Router to start routing via[...]

Advanced 83 T o set up DDNS: 1 Select Advanc ed from the main menu, then select the DDN S tab. The DDNS scr een displays. Figure 55 DDNS screen 2 Select a DDNS Service provider from the dr op-down list. This can be TZO.com, DynDNS.org, DtDns, NOIP or Zoneedit.com. TZO.com If you select TZO.com: 1 In the Domain Name text box, enter the domain name. [...]

84 C HAPTER 5: R OUTER C ONFIGURATION 3 In the Password text box, enter the account pas sword. 4 Click add to add your DDNS. NOIP .com 1 In the Host Name text box, enter the host name. 2 In the E-mail text box, enter the account name. 3 In the Password text box, enter the account pas sword. 4 Click save to save the changes an d Apply to make th is [...]

Advanced 85 decrease bandwidth consumption on slow-speed W AN links and allo ws a site to use a single IP addr ess for two physical networks. T o use proxy ARP , you must have a ra nge of static IP addr esses assigned by your ISP . Figure 57 The Pr oxy ARP Screen T o configure Pr oxy ARP: 1 On the menu, click Advanced . 2 Click the Proxy ARP tab. 3[...]

86 C HAPTER 5: R OUTER C ONFIGURATION Figure 58 The IPSec Scr een Below is a descript ion of the basic config uration parame ters: IPSec Connection Name : Please enter a name to define your connection. Remote IPSec Gateway Address : This is the static W AN IP address or URL of the remote IPSec r outer . T unnel Access from Local IP Addresses: Selec[...]

Advanced 87 Key Exchange Method: Select IKE or Manual from the dr op-down list box. Manual is useful for troubleshooting when you h ave problems using IKE key management. Pre-Shar ed Key : T ype yo ur pre-shar ed key in this field. Enter 8 to 31 case-sensitive ASCII ch aracters. Bo th routers which would build a VPN tunnel must use the same pr e-sh[...]

88 C HAPTER 5: R OUTER C ONFIGURATION Do not alter any settings unless you ar e an experienced network administrator . Management The manageme nt Screen lets you admi nister yo ur routers with featur es such as System Log, SNMP , UPnP , T rust Station, Remote Management, and Utility . Syslog If you have a syslog server on the network, you can confi[...]

Management 89 Figure 60 The System Log Scr een T o view the curr ent logs: 1 Click the Vie w Lo g button. T o enable the system log: 1 Check Enable System Log box. 2 Select the drop-down menu for a list of available t ypes of logging activities. 3 Select the Display Level for a list of available types of logging display . Select Select on the Mode [...]

90 C HAPTER 5: R OUTER C ONFIGURATION Figure 61 The SNMP Scr een Click Enable/Disable to enable/disabl e the agent. T o Configure the SNMP: 1 T ype the Read Community , which is the password for the incoming Get and GetNext requests from the m anagement sta tion. 2 T ype the Set Community , which is the password for incoming Set requests from the m[...]

Management 91 Figure 62 The UPnP Scr een Check UPnP Enabled to activate UPnP . T rusted Station Figure 63 The T rusted Station Screen The T ru sted Station Screen lets you add/r emove the MAC addr ess of the stations which can access the web administration.[...]

92 C HAPTER 5: R OUTER C ONFIGURATION Remote Management It is possible to administer the Router remotely . Select one of the following options for remote administration: Figure 64 The Remote Management Scr een ■ Disable Remote Administration — This option is set as default. ■ Enable administration from a single Internet Host — Only the spec[...]

Diagnostics 93 Figure 65 The Utility Scr een T o use the utility: 1 Select commands that you would like to run from the menu. 2 Enter the IP Address or Domain Name in the field pr ovided. 3 Click Start to start executing the command. 4 The results will be shown on the scre en below . Diagnostics The Diagnostics Screen lets you di agnose your DSL co[...]

94 C HAPTER 5: R OUTER C ONFIGURATION Figure 66 The Diagnostics Scr een Device Info The Device Info Settings menu pr ovides the following options:[...]

Device Info 95 Summary Figure 67 The Summary Screen The Summary screen is used to display the information of your LAN status. WA N Figure 68 The W AN Screen The WAN St atus Screen is used to display the information of your DSL Connection Status.[...]

96 C HAPTER 5: R OUTER C ONFIGURATION Statistics Figure 69 The Statistics Scr een The Statistics Screen is used to display the information of your LAN/W AN/A TM/ADSL Connection Statis tics. Click on the button for each connection device for more detailed information.[...]

Device Info 97 Route Figure 70 The Route Scr een The Route Screen is used to display the routing status/information. ARP Figure 71 The ARP Scr een The ARP screen is used to display the ARP status.[...]

98 C HAPTER 5: R OUTER C ONFIGURATION Support/Feedback Selecting Support/Feedback from the main menu displays the Sta tus, Logs, Routing T able, and Syslog screens in your W eb browser window . Support/Feedback Selecting Support/Feedback from the main menu displays the Support and Feedbac k screens. Support Figure 72 Support Scr een Selecting the S[...]

Support/Feedback 99 Feedback Figure 73 Feedback Scr een Selecting the Feedback option displays the Feedback screen and all ows you to provide feedback to 3Com on the operation of your Router . This screen should not be used to obtain technical supp ort.[...]

100 C HAPTER 5: R OUTER C ONFIGURATION[...]

6 T R OUBLESHOOTING Basic Connection Checks ■ Check that the Router is connected to your computers, and that all the equipment is power ed on. Chec k that the LAN Status and Sy nc DSL Status LEDs on the Router are illuminated, and that any corresponding LEDs on NIC ar e also illuminated. ■ Ensure that the computers have co mp leted their start-[...]

102 C HAPTER 6: T ROUBLESHOOTING ■ If you cannot b rowse to the Router , use the winipcfg utility in Wi ndows XP to verify that your computer has received the correct address information fr om the Router . From the Start menu, choose Run and then enter cmd . Check th at the computer has an IP address of the form 192.168.1.xxx (where xxx is in the[...]

Wireless Networking 103 Router connection to the Internet. Al so, other computer users will lose their network connections whilst this pr ocess is taking place, so choose a time when this wo uld be conve nient. Here is how you may use the reset button : 1 Use the tip of a pen. 2 Press and hold the r eset button at the rear panel of the device for a[...]

104 C HAPTER 6: T ROUBLESHOOTING ■ Ensure that the encryption method an d level that you use on your clients are the same as those configured on the Router . ■ Ensure that you have the W ireless computer enabled in the list of allowed MAC addresses if you are using Wireless Connection control on the Router . ■ If you are having dif ficulty co[...]

Power LED or Power Adapter OK LED Not Lit 105 around it. Applications are generally available with the computer wireless car d to carry out a site surv ey . Use this application to find the optimal siting for your wireless computer . Consult your Computer Card documentation and vendor for more details. Power LED or Power Adapter OK LED Not Lit ■ [...]

106 C HAPTER 6: T ROUBLESHOOTING Alert LED The Alert LED will flash when the Rou ter unit is first powered up while the system software checks the hardware for pr oper operation. Once the Router has started normal operation, the Alert LED will go out. ■ If the Alert LED does not go out following start up, but illuminates continuously , this indic[...]

Frequently Asked Questions 107 ■ IP address: 192.168.1.2 ■ Subnet mask: 255.255.255.0 ■ Default Router address: 192.168.1.1 3 Restart the computer , and re-apply power to the Router . 4 Using the Web br owser on the computer , enter the following URL in the location bar: http://192.168.1.1 . This will connect you to the Micr ocod e Recovery u[...]

108 C HAPTER 6: T ROUBLESHOOTING Y ou can expand the number o f connections available on your LAN by using hubs, switches and wireless access points connected to the Router . 3Com wireless access points and OfficeConnect hubs and switches provide a simple, reliable means of expanding your network; contact your supplier for more information, or visi[...]

3Com Warranty and Support Services 109 W arranty support: ■ Requestor contact details ■ 3C part number ■ Firmware or software version of the 3Com product and operating system used ■ Description of the problem or failur e ■ Serial number of the product ■ Ship-to address, with on-site co nt act (required for Retur n Materials Authorizatio[...]

110 C HAPTER 6: T ROUBLESHOOTING[...]

A U SING D ISCOVERY Running the Discovery Application 3Com provides a user -friendly Disc overy application for detecting the Router on the n etwork. Windows Installation (95/98/2000/Me/NT/ XP) 1 Insert the Router CD-ROM in the CD-ROM drive on your computer . A menu will appear; select Router Discover y . Discovery will find the Router even if it i[...]

112 A PPENDIX A: U SING D ISCOVERY Figure 75 Discover ed Router Screen 3 Figur e 76 shows an example Discovered Devices screen. Highlight the Router by clicking on it, and press Next . Figure 76 Discovery Finish Scr een 4 Click on Finish to la unch a web br owser and displa y the logi n page fo r the Router .[...]

B IP A DDR ESSING The Internet Protocol Suite The Internet protocol suite cons ists o f a well-defined set of communicat ions pr otocols and severa l standar d application protocols. T ransmission Control Protocol/Interne t Protocol (TCP/IP) is probably the most widely known and is a combination of two of the protocols (IP and TCP) working together[...]

114 A PPENDIX B: IP A DDRESSING For your network to work correctly , all devices on the netwo rk must have: ■ The same sub-network ad dress. ■ 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 ‘192.168.1.8’. However , th e size of the n[...]

How does a Device Obtain an IP Addr ess and Subnet Mask? 11 5 See T able 4 for an example about how a network (only four computers repr esented) and a Router might be configur ed. Ta b l e 4 IP Addressing and Subnet Masking How does a Device Obtain an IP Address and Subnet Mask? There are thr ee different ways to obtain an IP address and the subn e[...]

116 A PPENDIX B: IP A DDRESSING themselves the same address, the c onflict is detected and one of the devices allocates itse lf a new address. Automatic IP addressing support was intr oduced by Microsoft in the Wi ndows 98 operating system and is also supported in W indows 2000.[...]

C T ECHNICAL S PECIFICATIONS This section lis ts the technical spec ifications for the OfficeConnect ADSL Wi reless 108Mbps 11g Fire wall Router . ADSL Wire less 11g 108Mbps Firewall Router Interfaces ADSL modem connection — Modem RJ-11 port LAN connection — four 10Mbp s/100Mbps dual speed Ether net ports (10BASE-T/100BASE-TX) WLAN Interfaces S[...]

118 A PPENDIX C: T ECHNICAL S PECIFICATIONS Encryption: 40/64 bit WEP , 128 bit WEP , WP A Maximum clients: 128 O/P Power 18dBm Operating T emperature 0 °C to 40 °C (32 °F to 105 °F) Power 7V A, 23.9 BThU/hr Humidity 0% to 90% (non-condensing) humidity Dimensions ■ Wi dth = 220 mm (8.7 in.) ■ Depth = 135 mm (5.3 in.) ■ Height = 24 mm (1 i[...]

ADSL Wireless 11g 108Mbps Firewall Router 119 systems. RSS-210 Environmental: EN 60068 (IEC 68) *See “Regulatory Information” on page 137 for conditions of operation. System Requirements Operating Systems The Router will support the fo llowing Operating Systems: ■ Wi ndows 95/98 ■ Wind ows NT 4.0 ■ Wi ndows ME ■ Wi ndows 2000 ■ Wi ndo[...]

120 A PPENDIX C: T ECHNICAL S PECIFICATIONS[...]

D S AFETY I NFORMATION Important Safety Information WAR NI N G : Warnings contain directions that you must follow for your personal safety . Follow all directions carefully . Y ou must read the following safety information carefully befo re you install or remove the unit: WAR NI N G : The Router generates and u ses radio frequency (rf) energ y . In[...]

122 A PPENDIX D: S AFETY I NFORMATION WAR NI N G : Disconnect the power adapt er before moving the unit. WARNING: RJ-45 ports. These are shie lded RJ-4 5 data sockets. They cannot be used as telephone sockets. Only connect RJ-45 data connectors to these sockets. Wichtige Sicherheitshinweise VORSICHT : Warnhinweise ent halten Anwe isungen, die Sie z[...]

Consignes importantes de sécurité 12 3 behoben werden kan n, setzen Sie sich mit Ihrem Lieferante n in V erbindung . VORSICHT : V or dem Ausbau des Gerä ts das Netzadapterkabel herausziehen. VORSICHT : RJ-45-Anschlüsse. Dies sind abgeschirmte RJ-45-Datenbuchsen. Sie können ni ch t als T e lefonansch lußbuch sen verwendet werden. An diesen Buc[...]

124 A PPENDIX D: S AFETY I NFORMATION ne sont maintenues que si l'équipement auquel il est raccordé fo nctionne dans les mêmes conditions. A V ERTISSEMENT : Il n’y a pas de parties remp laceables par les utilisateurs ou entretenues par les utilisateurs à l’ intérieur du moyeu. Si vous avez un problème physique avec le moyeu qui ne pe[...]

E E ND U SER S OFTWAR E L ICENSE A GR EEMENT IMPOR T ANT : READ BEFORE INST ALLING THE SOF TWARE 3Com END USER SOF TWA RE LICENSE AGREEMEN T YOU SHOULD CAREFULLY READ THE FOLLOWING TERMS AND CO NDITIONS BEFORE DOWNLOADI NG, INSTALLING AND USING THIS PRODU CT, THE USE OF W HICH IS LICENSED BY 3COM CORP ORATION (ì3COMî) TO ITS CUSTO MERS FOR THEIR [...]

126 A PPENDIX E: E ND U SER S OFTWARE L ICENSE A GREEMENT commercial item as defined in FAR 2.101(a) and as such is provid ed with only su ch rights as are provided in thi s Agreement, whi ch is 3 Com’s standard commercial license for t he Software. Technical data is prov ided with limited rights on ly as provided in DFAR 25 2.227-7015 (Nov . 199[...]

G LOSSARY 802.11b The IEEE specification for wireless Ethe rnet which allows speeds of up to 11 Mbps. The standard pr ovides for 1, 2, 5.5 and 11 Mbps da ta rates. The rates will switch automatically depending on range and environment. 802.11g The IEEE specification for wireless Ethe rnet which allows speeds of up to 54 Mbps. The standard pr ovides[...]

128 C HAPTER : G LOSSARY configure to use the best common speed. The or der of prefer ence (best first) is: 100BASE-TX full duplex, 1 00BASE-TX half duplex, 10BASE-T full duplex, and 10BASE-T half duplex. Auto -negotiation is defined in the IEEE 802.3 standard for Ether net an d is an operatio n that takes place in a few milliseconds. Bandwidth The[...]

129 95 and Windows 98 will call the server to obtain the address. Windows 98 will allocate itself an address if no DHCP server can be found. DNS Server Address DNS stands for Domain Name Sy st em, which allows Internet host computers to have a domain name (s uch as 3com.com) and one or mo re IP addresses (such as 192.34.45.8). A DNS server keeps a [...]

130 C HAPTER : G LOSSARY Router A device that acts as a central hub by connecting to each computer's network interface card and managing the data traffic between the local network and the Inter net. Half Duplex A system that allows packets to transmitted and received, but not at the same time. Contra st with full duplex. Hub A device that rege[...]

131 ISP Inter net Service Provider . An ISP is a business that provides connectivity to the Inter net for individuals and other businesses or organizations. LAN Local Ar ea Network. A network of end stations (such as PCs, printers, servers) and network devices (hubs a nd switches) that co ver a relati vely small geographic ar ea (usually not larg e[...]

132 C HAPTER : G LOSSARY PPPoE Point-to-Point Protocol over Ethernet. Point-to-Point Protocol is a method of data transmission o riginally creat ed for dial-u p connectio ns; PPPoE is for Ethern et connections. PPTP Point-to-Point T u nneling Protocol is a method of secure data transmission between two remote sites over the internet. QoS QoS stands[...]

133 (as opposed to valid IP address num bers recognized by the Internet, which must assigned by InterNIC). Subnets A network that is a component of a larger network. Switch A device that interconnect s several LANs to form a single logical LAN that comprises of several LAN segments. Sw itches are similar to bridges, i n that they connect LANs of a [...]

134 C HAPTER : G LOSSARY WECA Wireless Ether net Compatibility Allia nce. An industry group formed to certify cross vendor interoperability and compatibility of 802.11b and 802.11g wireless networking products and to pr omote the standard for enterprise, small business and home envir onments. (see also 8 02.11b, 802.11g, W i-Fi) WEP Wir ed Equivale[...]

I NDEX 135 I NDEX A Addresses IP 113 Administration Password 34, 47 Advanced 81 DDNS 82 RIP 81 static route 81 Automatic Addressing 115 C Cable Specifications 119 Channels 137 Configuration backup 79 res t ore 7 9 Conventions notice icons, About Thi s Guide 9 text, About This Guide 10 Country Selection 32 D DDNS 82, 84 DHCP 41, 51, 115 DHCP Server [...]

136 I NDEX static r oute 81 Subnet Mask 41, 113 Summary 44 Support Information 98 Support Links 98 T TCP/IP 25, 28, 41, 113 T echn ical specifications 117 standards 117 T echn ical Support 108 T ime Zone 35, 78 U Unit Configuration 48 Upgrade 80 URL Filter 74 V Virtual Servers 66, 67 W WA N 3 6 Web Pr oxy 29 Wir el es s authorized PCs 61 channel se[...]

R EGULATORY N OTICES Regulatory Information 3Com OfficeConnect ADSL Wireless 108Mbps 11g Fir ewall Router (WL-553) must be installed and used in strict accordance with the manufacturer’ s instructio ns as described in the user docu mentation that comes with the product. This product contains encr yption. It is unlawful t o export out of the U.S. [...]

138 C HAPTER : R EGULATORY N OTICES limitation of exposur e of the general p ublic to electromagnetic fields (0 Hz to 300 GHz)]. US - Radio Frequency Requirements This device must not be co-located or operated in conjunction with an y other antenna or transmitter . USA-FEDERAL COMMUNICA TIONS COMMISSION (FCC ) This device complies with part 15 of t[...]

MANUFACTURER’S DECLARATION OF CONFORMITY 13 9 The correction of interference caused by such unauthorized mo dification, substitution or attachment will be the responsibility of the user . MANUF ACTURER’S DECLARA TION OF CONFORMITY 3Com Corporation 350 Campus Drive Marlborough, MA 01752-3064, USA (800) 527-8677 Date: 03,20 2007 Declares that the[...]

140 C HAPTER : R EGULATORY N OTICES dispositif doit étre prêt à accepter tout brouillage radioélectrique r eçu, même si ce br ouillage est su sceptible de compr omettre le fonctionnement du d ispositif. The term "IC" before the equipment certification number only signifies that the Industry Canada techni cal specifications wer e met[...]

141 E UR O PE – EU D ECLA RA TI ON OF C ON F O RMIT Y Intended use: IEEE 802.11g/b radio LAN device NOTE: T o ensure pr oduct operation is in compliance with local regulations, select the country in which the product is installed. Refer to 3Com OfficeCo nnect W ireless 54Mbps/108Mbps 11g Cable/DSL Router User Guide. E UR O PE - D ECLA RA TI ON OF[...]

142 Italian Con la presente 3Com Corporation dichiara che questo RLAN device è conforme ai requisiti essenzi ali ed alle altre disposizioni pertinenti st abilite dalla dirett iva 1999/5/CE. S panish Por medio de la presente 3Com Corporatio n declara que el RLAN device cumple con los requisitos esenciales y cualesquiera otras disposiciones aplicabl[...]

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3Com Corporation, Corporate Headquarters, 350 Campus Drive, Marlborough, MA USA 01752-3064. T o lear n more about 3Com products and services, visit our World Wide Web site at www .3com.com All specifications are subject to change without notice. Copyright © 2008 3Com Corporation. All rights reserved. 3Com and OfficeConnect are r egistered trademar[...]