3Com WL-542 инструкция обслуживания

http://www.3com.com/ Part No. DUA100A-72AA A02 Published August 2005 Of ficeConnect ® ADSL W ir eless 11g Fir ewall Router User Guide Model WL-542 3CRWDR100A-72 3CRWDR100B-72 3CRWDR100U-72[...]

3Com Corporati on 350 Campus Drive, Marlborough, M A USA 01752-3064 Copyright © 2 004, 2005, 3Com Co rporation. All right s reser ved. No part of t his documentation may be repr oduced in any form or by any means or used to make any derivative work (such as translation, transformation, or adaptation ) without written permission fr om 3Com Corporat[...]

C ONTENTS A BOUT T HIS G UIDE Naming Convention 5 Conventions 6 Feedback About this User Gu ide 6 Related Documentat ion 7 1 I NTRODUCING THE R OUTER OfficeConn ect ADSL Wireless 11g Firewall Router 9 Router Advantages 11 Package Contents 11 Minimum System and Co mponen t Requirements 12 Front Panel 12 Rear Panel 13 2 I NSTALLING THE R OUTER Introd[...]

4 R UNNING THE S ETUP W IZARD Accessing the Setup W izard 25 Setup W izard - Connection T ype 27 5 C ONFIGURING THE R OUTER Navigating Thr ough the Router Conf iguration Pages 35 Main Menu 35 Status Screen 35 Status 35 LAN Setup 36 LAN Settings 37 Wireless Settings 39 Configuring Wireless 39 Encryption 40 Internet Set tings 46 Connection T ype 46 D[...]

Status 80 ADSL Status 80 A TM PVC Status 81 Logs 81 Support/Feedback 82 Support 82 Feedback 82 6 T R OUBLESHOOTING Basic Connection Ch ecks 83 Browsing to the Router Configuration Screens 83 Connecting to the Internet 84 Forgotten Passwor d and Reset to Factory Default s 84 W ireless Networking 85 Recovering from Corru pted Softwa re 87 Freq uently[...]

C S AFETY I NFORMATION D E ND U SER S OFTWARE L ICENSE A GREEMENT E O BTAINING S UPPORT FOR Y OUR P R ODUCT Register Y our Product 103 Purchase V alue-Added Services 103 T roubleshoot Online 104 Access Software Downloads 104 T elephone T echnical S upport and Repair 104 Contact Us 105 G LOSSARY R EGULATORY N OTICES I NDEX[...]

A BOUT T HIS G UIDE This guide describes how to install and configure the OfficeConnect ADSL Wi reless 11g Fire wall Router (3CR WD100x-72). This guide is intended for use by th ose responsible for installing and setting up network equipment; consequ ently , it assumes a basic working knowledge of LANs (Local Area Networks) and In terne t Routers. [...]

6 A BOUT T HIS G UIDE Conventions Ta b l e 1 and Ta b l e 2 list co nventions that are used thr oughout this guide. Feedback About this User Guide Y our suggestions are ve ry important to us. Th ey will help make our documentation more useful to you. Please e-mail co mments about this document to 3Com at: pddtechpubs_comments@3com.com Please includ[...]

Related Documentation 7 Example: ■ OfficeConnect ADSL Wireless 11g Fir ewall Router User Guide ■ Part Number DUA100A-72AAA01 ■ Page 24 Do not use this e-mail address for technical support questions. For information about contacting T e ch nical Support, please refer to Appendix E . Related Documentation In addition to this guide, each Router [...]

8 A BOUT T HIS G UIDE[...]

1 I NTR ODUCING THE R OUTER Welcome to the world of networking 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 lar ge businesses could af for d the networking advantage. OfficeConnect ADSL [...]

10 C HAPTER 1: I NTRODUCING THE R OUTER Figure 1 Example Network Without a Router When you use the Router in your netwo rk ( Figure 2 ), it becomes your connection to the Internet. Connections can be made directly to the Router , or to an OfficeConnect Switch or Hub, expanding the number of computers you can have in your network. Figure 2 Example N[...]

Router Advantages 11 Router Advantages The advanta ges of the Router include: ■ Shared Internet connection for both wired and wir eless computers ■ High speed 802.11g wireless networking ■ No need for a dedicated, “alway s on” computer serving as your Internet connection ■ Cross-platform operation for comp atibility with W indows, Unix [...]

12 C HAPTER 1: I NTRODUCING THE R OUTER Minimum System and Component Requirements Y our Router requires that the computer(s) and components in yo ur network be configured with at least the following: ■ A computer with an operating system that supports TCP/IP networking protocols (for example W indows 98/NT/Me/2000/XP , Unix, Mac OS 8.5 or higher)[...]

Rear Panel 13 3O n l i n e L E D Green If this LED is on, your username/password has been authenticated successfully with your ISP . 4 Wireless LAN (WLAN) Status LED Green If the LED is on it indicates that wi reless 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 Wirel[...]

14 C HAPTER 1: I NTRODUCING THE R OUTER 7A D S L P o r t Using the RJ11 cable provided, you should connect your Router to the telephone sock et via a splitter . 8 Power Adapter Socket Only use the power adapter that is supp lied with this Router . Do not use any other adapter . 9 Reset Button If you want to reset your Router to factory default sett[...]

2 I NSTALLING THE R OUTER 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 Please note the follo wing: WAR NI N G : Please read the [...]

16 C HAPTER 2: I NSTALLING THE R OUTER 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[...]

Connecting the Router 17 Figure 5 Connecting the Router 1 Run the provided telephone cable from the wall jack providing ADSL service to the ADSL port on your ADSL Router . When inserting an ADSL RJ-11 plug, be sure the tab on the plug clicks into position to ensure that it is properly seated. If you ar e us ing splitterless AD SL service, add low-p[...]

18 C HAPTER 2: I NSTALLING THE R OUTER Figure 6 Installing with a splitter[...]

Connecting the Router 19 Figure 7 Installing without a splitter Y ou have now completed the hardwar e installation of your R outer . 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 conn[...]

20 C HAPTER 2: I NSTALLING THE R OUTER[...]

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 . Obtaining a[...]

22 C HAPTER 3: S ETTING U P Y OUR C OMPUTERS Figure 8 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 9 . Click OK . Figure 9 Internet Protocol (TCP/IP) Properties Scr een 7 Restart your computer .[...]

Obtaining an IP Address Automatically 23 Windows XP 1 From the Windows Start menu, s elect Control Panel . 2 Click on Network and Internet Connections . 3 Click on the Network Connections icon. 4 Double click on LAN or High Speed Connection icon. A screen titled Local Area Connection Status will appear . 5 Select Internet Protocol TCP/IP and click [...]

24 C HAPTER 3: S ETTING U P Y OUR C OMPUTERS Disabling PPPoE and PPTP Client Software If you have PPPoE client software installed on your computer , you will need to disable it. T o do this: 1 From the Windows Start menu, s elect Settings > Control Panel . 2 Double click on Internet Options. 3 Select the Connectio ns T ab. A screen similar to Fi[...]

4 R UNNING THE S ETUP W IZAR D Accessing the Setup 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 , Internet Explorer 5.0 or higher , or Mozilla 1.2.1 or higher). T o use the Setup Wizard: 1 Ensure that you have at least one computer connected to the Router .[...]

26 C HAPTER 4: R UNNING THE S ETUP W IZARD Figure 12 Router Login Scr een 5 When you have logged in either: ■ The Statu s screen will appear ( Figur e 13 ). Select Setup Wizard from the menu . or ■ If your Router has not been configured before, the Wizard will launch automatically (refer to Figure 14 ). 6 Y ou will be guided step by step throug[...]

Accessing the Setup Wizard 27 Setup Wizard - Connection T ype Figure 14 Connection T ype Scr een The Connection T ype screen allows you to set up the Router for the type of Internet co nnection you have. Before setting up your connection type, have your account information from your ISP r eady . Select a DSL mode from the following: ■ PPPoE — P[...]

28 C HAPTER 4: R UNNING THE S ETUP W IZARD PPPoE Mode Figure 15 PPPoE Scr een T o set up the r outer for use with a PPP ove r Ethern et (PPPoE) connection, use the following procedur e: 1 Enter your PPP over Ether net user name in the Username text box. 2 Enter your PPP over Ether net password in the Password text box. 3 Re-type your PPP over Ether[...]

Accessing the Setup Wizard 29 Figure 16 Wireless Settings Scr een 7 Set the W ireless Channel you want to use from the Channel drop-down list. 8 Specify the SSID to be used b y your W ireless Network in the SSID field. If there ar e other wir eless networks in your area, you should give your wireless network a unique name. PPPoA Mode Figure 17 PPPo[...]

30 C HAPTER 4: R UNNING THE S ETUP W IZARD 5 Select the encapsulation type (LLC or VC MUX) in the Encapsulation drop-down list. This information will ha ve been provided to you by your ISP . 6 Check all of your settings, and then click Next . The W ireless Settings screen is displayed. Figure 18 Wireless Settings Scr een 7 Set the W ireless Channel[...]

Accessing the Setup Wizard 31 Bridge Mode (for a single PC) (RFC 1483 Bridged Mode) T o set up the Router for use with an RFC1483 bridged connection: Figure 19 Bridged Mode Configuration Scr een 1 Enter your VPI and VCI information in the VPI/VCI text boxes. 2 Select the encapsulation type (LLC or VC MUX) in the Encapsulation drop-down list. This i[...]

32 C HAPTER 4: R UNNING THE S ETUP W IZARD Routing Mode over A TM (RFC 1483 Routed Mode) T o set up the Router for use with an RFC1483 routed connection: Figure 21 Routing Mode Scr een 1 Enter your Internet IP address in the WAN IP text box. 2 Enter the subnet mask in the Subnet Mask text box. 3 Enter the default router in the Default Gateway text [...]

Accessing the Setup Wizard 33 8 Set the W ireless Channel you want to use from the Channel drop-down list. 9 Specify the SSID to be used b y your W ireless Network in the SSID field. If there ar e other wir eless networks in your area, you should give your wireless network a unique name. Dynamic/Fixed IP in 1483 Bridge Mode (For Multiple PCs) For b[...]

34 C HAPTER 4: R UNNING THE S ETUP W IZARD Figure 24 Wireless Settings Scr een 8 Set the W ireless Channel you want to use from the Channel drop-down list. 9 Specify the SSID to be used by your W ireless Network in the SSID field. If there are other wir eless networks in your area, you should give your wireless network a unique name. Configuration [...]

5 C ONFIGURING THE R OUTER Navigating Through the Router Configuration Pages This chapter describes all the scr eens avail able 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 default URL is http://192.168.[...]

36 C HAPTER 5: C ONFIGURING THE R OUTER LAN Setup Y our Router is equipped with a DHCP se rver th at will automatically assign IP addresses to each computer on your network. The factory default settings for the DHCP s erver will work in most a ny app lication. If you need to make changes to the settings, you can do so. The changes that you can mak [...]

LAN Setup 37 LAN Settings The LAN Settings screen is used to specify the LAN IP address of your Router , and to configure the DHCP server . Figure 27 LAN Settings Scr een 1 Select LAN Settings and then specify the Router IP Address and Subnet Mask in the appropriate fields. The default IP addr ess of the Router is 192.168.1.1. 2 If you want to use [...]

38 C HAPTER 5: C ONFIGURING THE R OUTER DHCP Clients List The DHCP Clients List provides details on the devices that have received IP addresses fr om the Router . The list is only created when the Router is set up as a DHCP server . For each device that i s connected to the LAN the following information is displayed: ■ IP address — The Internet[...]

Wireless Settings 39 Wireless Settings From these pages, you can configure the settings for wireless connections. Figure 29 Wireless Settings Scr een This screen allows you to e nable or disable the wireless section of your LAN. When disabled, no wireless PCs can gain access to either the Internet or other PCs on you r W ired or Wireless LAN throug[...]

40 C HAPTER 5: C ONFIGURING THE R OUTER T o enable Wireless function: 1 Select the W ireless Channel you want to use from the Channel dr op-down list. 2 Specify the SSID to be used by your W ireless Network in the SSID field. If there are other wir eless networks in your area, you should give your wireless network a unique name. 3 Enable or disab l[...]

Wireless Settings 41 ■ WP A-PSK (no Server) (see page 41 ) ■ 128-bit WEP (see page 42 ) ■ 64-bit WEP (see page 43 ) ■ WP A (with RADIUS Server) (see page 44 ) Select the requir ed value from the drop down list, and press Apply . Disabled In this mode, wireless transmissions w ill not be encrypted, and will be visible to everyone. However , [...]

42 C HAPTER 5: C ONFIGURING THE R OUTER 2 Optionally , check the Hide PSK check box, if you want the key that you enter to be sho wn on the screen as a series of asterisks (*). 3 Click Apply . 128-bit WEP WEP is the basic mechanism to t ransmit your d ata securely over the wireless network. Matching encrypti on keys must be setu p on your Router an[...]

Wireless Settings 43 64-bit WEP WEP is the ba sic mechanism to tran smit your data securely over the wireless network. Matching encrypti on keys must be setu p on your Router and wireless client devices to use WEP . Figure 34 64-bit WEP Scr een T o enable 64-bit WE P: 1 Manually enter the key: ■ enter the WEP key a s 5 pairs of hex digits (0-9, A[...]

44 C HAPTER 5: C ONFIGURING THE R OUTER WP A (with RADIUS Server) WP A (W iFi Protected Access) prov ides dynamic key changes and constitutes the best security solution . On a wireless network where not all devices support WP A, WEP (Wired E quivalent Privacy) should be used. Wi reless Pr otected Access using a server to distribute keys to the clie[...]

Wireless Settings 45 Wireless WDS Settings The Router supports WDS (W ireless Distribution System). WDS enables one or more Access Points to rebr oadcast received signals to extend range and reach, though this can affect the overall throughput of data. Figure 36 Wireless WDS Settings Scr een T o enable wireless r epeating: 1 Check the Enable WDS ch[...]

46 C HAPTER 5: C ONFIGURING THE R OUTER Internet Settings From these pages, you can configure the settings for your DSL connection. Connection T ype The Inter net Settings screen is used to configur e the parameters for your DSL connection. The information necessary to complete these screens should be obtained from your ISP . Chec k with your ISP a[...]

Internet Settings 47 PPPoE PPP over Ether net, providing routing fo r multiple PCs. T o configur e this page correctly , you should obtain the info rmation on this page from your ISP . Figure 38 PPPoE Settings Scr een 1 Select PPPoE from the Protocol drop-down menu. 2 Then enter the IP address and Subnet Mask information pr ovided by your ISP into [...]

48 C HAPTER 5: C ONFIGURING THE R OUTER ■ VBR (variable bit rate): QoS class defined by the A TM Foru m for A TM networks. VBR is subdivided into a real time (RT) class and non-real time (NRT) class. VBR (RT) is used for connections in which there is a fixed timing relationship between samples. VBR (NRT) is used for connections in which there is [...]

Internet Settings 49 PPPoA PPP over A T M, this is a popular choi ce among European DSL pr oviders. T o configure this page corr ectly , you s hould obtain the information on th is page from your ISP . Figure 39 PPPoA Settings Screen 1 Select PPPoA from the Protocol drop-down menu. 2 Enter the VPI and VCI parameters provided to you by your ISP in t[...]

50 C HAPTER 5: C ONFIGURING THE R OUTER non-real time (NRT) class. VBR (RT) is used for connections in which there is a fixed timing relationship between samples. VBR (NRT) is used for connections in which there is no fixed timing r elationship between samples, but that still ne ed a guaranteed QoS. Compare with ABR, CBR, and UBR. 5 Enter the PCR/S[...]

Internet Settings 51 Bridge Mode (For a Single PC) (RFC 1483 Bridged Mode) If the ISP limits some specific com puters to access Inte rnet, that means only the traffic to/fr om these computers will be forwarded and the other will be filtered. In this case, bridge modem is used to c onnect to the ISP . The ISP will generally give one Inte rnet accoun[...]

52 C HAPTER 5: C ONFIGURING THE R OUTER such as traditional computer co mmunications applications. The UBR service may be considered as "best ef fort service". ■ VBR (variable bit rate): QoS class defined by the A TM Foru m for A TM networks. VBR is subdivided into a real time (RT) class and non-real time (NRT) class. VBR (RT) is used f[...]

Internet Settings 53 4 Select the encapsulation type (LLC or VC MUX) in the Encapsula tion field . This information will have been provided to you by your ISP . 5 Select the type of Quality of Service that you want fr om the QoS Class drop-down menu. ■ CBR (constant bit rate): the CBR service class is intended for real-time applications, for exam[...]

54 C HAPTER 5: C ONFIGURING THE R OUTER Figure 42 Dynamic/Fixed IP for Bridge Mode Scr een After clicking Edit on the A TM PV C page, the A TM Interface page appears. 1 Select Dynamic/Fixed IP for Bridge Mode from th e Protoc ol drop-down menu. 2 Enter the IP address, Subnet Mask and Default Gateway information provided by your ISP into the IP addr[...]

Internet Settings 55 non-real time (NRT) class. VBR (RT) is used for connections in which there is a fixed timing relationship between samples. VBR (NRT) is used for connections in which there is no fixed timing r elationship between samples, but that still ne ed a guaranteed QoS. Compare with ABR, CBR, and UBR. 6 Enter the PCR/S CR/MBS values. 7 I[...]

56 C HAPTER 5: C ONFIGURING THE R OUTER Figure 44 DNS Scr een If the DNS information is automaticall y provided by your ISP every time you connect to it, check the Automatic fr om ISP box. 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 requir e yo[...]

Firewall 57 Some ISPs require a host name. If your ISP has this r equirement, enter the host name in the Host Name field. 1 Thre e differ ent ways to configur e this page: ■ If your ISP r equires an assi gned MAC addr ess, enter the values for a WAN MAC add ress or ■ If the computer you are now using is the one that was pr eviously connected di[...]

58 C HAPTER 5: C ONFIGURING THE R OUTER T o enable the fir ewall function: 1 Select the level of pr otection (High Le vel, Medium Level, Low Level, or Disable) that you desire fr om the Firewall Enable/Disabl e drop-down menu. 2 Click Apply . Special Applications Special Applications let yo u choose specific ports t o be open fo r specific applicat[...]

Firewall 59 T o manually enter the port information: 1 Specify the trigger port (the one used by the a pplication when it is initialized) in the T rigger Port column, and specify whether the trigger is TCP or UDP . 2 Specify the Public Ports used by the application, that will need to be opened up in the firewall for the a pplication to work pr oper[...]

60 C HAPTER 5: C ONFIGURING THE R OUTER 3 Enter the port type (TCP , UDP , or both TCP and UDP). 4 Specify the public port that will be seen by clients on the Inter net, and the LAN port which the traffic will be r outed to. 5 Y ou can enable or disable each Vi rtual Server entry by checking or unchecking the appropriate Enable check box. 6 Click A[...]

Firewall 61 T o configur e new access control to specific Internet services: 1 Click on Add PC. A scr een similar to Figur e 50 will appear . Figure 50 Add PC Scr een 2 Enter a description for the filter you are defining in the Client PC Description field. 3 Enter the IP address or IP address range into the Client PC IP Address fields. 4 Select the[...]

62 C HAPTER 5: C ONFIGURING THE R OUTER URL Filter T o configur e the URL filter feature, us e the table on the URL Filter pa ge to specify the Web sites (www .somesite.com) and/o r keywords you want to filter on your network. For example, entering a keyword of xxx would block access to any URL that contains the string xxx . Figure 51 URL Filter Sc[...]

Firewall 63 Content Filter Y ou can use the list on the Content Filter page to specify the type of content that you want to filter out. The Router comes with a 14-day free trial of the 3Com Content Filter Serv ice (3CSBCFS). T o activate the 14-d ay free trial of the service, you must first register your Router at www .3com.com. T o continue using [...]

64 C HAPTER 5: C ONFIGURING THE R OUTER 4 A list of categories is listed under Core Categories and Productivity Categories . Y ou can define what content should b e viewed/blocked using the Allow/Deny option. The Deny option is used to filter out the content that contains the specific subject ma tter . Content with a specific subject matter will no[...]

Firewall 65 Figure 54 Add Schedule Rule Scr een 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 . MAC Address Filtering The MAC Address Filter is a powerful security featur e that allows you [...]

66 C HAPTER 5: C ONFIGURING THE R OUTER T o enable the MAC Address Filtering feature: 1 Click Enable for the Enable MAC Address Filtering option. 2 In the Access Rule for registered MAC address option, se lect Allow or Deny to determine the access rights for the list of addresses defined in the MAC Address Filtering List . 3 T o add entries to the [...]

Firewall 67 T o put a computer in the DMZ, enter the last dig its of its LAN IP address in the Static IP field. Put the IP addr ess (if k nown) that will be accessing the DMZ PC into the Publ ic IP f i e l d , s o t h a t o n l y t h e c o m p u t e r o n t h e I n t e r n e t at this addr ess can access this PC wi thout firewall protection. If the[...]

68 C HAPTER 5: C ONFIGURING THE R OUTER Advanced From the Advanced screen, you can configure: ■ NA T (Network Address T ranslation) ■ Universal Plug and Play ■ W AN Ping Blocking ■ Remote Admin Three sub-menu items can also be configures in this page: ■ Routing ■ DDNS ■ SNMP Figure 57 Advanced Scr een NA T ■ NA T — Before you enab[...]

Advanced 69 you turn NA T off, the computers on your network will not be able to access the Internet. Other problems may also occur . ■ IPSEC NA T -T Pass-through — NA T -T (NA T T raver sal) is an Inter net Draft proposed to IETF in order to help the problems associated with passing IPsec traffic through NA T Routers. For NA T -T to work, both[...]

70 C HAPTER 5: C ONFIGURING THE R OUTER Remote Administration allows you to make changes to your Router’ s settings from anywher e on the Inter net. Y ou can choose to either: ■ Click the check box to enab le any PC on the network to remotely manage your Router . ■ Enter one spe cific IP ad dress that can remotely manage your router . This is[...]

Advanced 71 ■ Gateway — the router used to r oute data to the network specified b y the network address. T o a dd a static route entry to the table, click Add and on the screen that appears type in the network address, subnet mask and router . T o change an entry , click Edit and to delete an entry , click Delete . After you have finished makin[...]

72 C HAPTER 5: C ONFIGURING THE R OUTER 3Com recommends that you only use RIPv1 if there is an existing RIP-enabled device on your network th at does not suppor t RIPv2. In all other cases, you should use RIPv2. 5 Use the Poison Reverse dr op-down list to en able or disable Poison Reverse on the router . Enabling Poison Reverse on your Router allow[...]

Advanced 73 DDNS The Router provides a list of dynamic DNS providers for you to choose from . Dynamic Domain Name Server (DDNS) enables you to map a static domain name to a dynamic IP addr ess. The Router supports two DDNS providers: TZO.com and DYNDNS. Befor e you set up DDNS, you must obtain an account, passwor d and stat ic domain name from your[...]

74 C HAPTER 5: C ONFIGURING THE R OUTER SNMP SNMP (Simpl e Network Manage me nt Protocol) allows r emote management of your router by a PC that h as an SNMP management agent installed. SNMP Community Figure 62 SNMP Scr een T o Configur e SNMP: 1 In the Community column, enter the name of the SNMP communication channel. Y our SNMP management agent n[...]

System Tools 75 SNMP T rap Y ou can configure your r outer to send status messages to the SNMP management agent if a problem occu rs on the network. T o configure traps: 1 In the IP Address field, enter the IP addr ess of the PC to which you want your router to send status messages. 2 In the Community field, enter the name of the SNMP communication[...]

76 C HAPTER 5: C ONFIGURING THE R OUTER Reset t o Factor y Default Figure 64 Reset to Factory Default Scr een Using this option will reset all of the settings in the Router to the fact ory (default) settin gs. It is re commended that yo u backup your setting s before you r estore all of the defaults. T o r estore the factory default settings, click[...]

System Tools 77 Upgrade From time to time 3Com may r elease new versions of the Router’ s firmware. Firmwar e updates contain im provements and fixes to pr oblems that may have existed. Figure 66 Upgrade Scr een Please download the firmware file to your PC first, and then click Browse and select the firmwar e file. Click Upgrade to upload the fir[...]

78 C HAPTER 5: C ONFIGURING THE R OUTER T o change the password: 1 Enter the current passwor d into the Current Password field. 2 Enter the new password into the New Password and Confirm new Password fields. 3 Click Apply . The login timeout option allows you to set the period of time that you can be logged into the Router's set up interface. [...]

System Tools 79 a checkmark in the box ne xt to E nable Daylight Saving . The system clock may not update immediately . Allow at least 15 minutes for the router to contact the time servers on the Inte r net and get a response. Y ou cannot set the clock yourself. Y ou can specify which SNTP servers the Router will use to update it’ s system clock,[...]

80 C HAPTER 5: C ONFIGURING THE R OUTER Status and Logs Y ou can use the Status Screen to view version numbers for your router’ s software and hardwar e and check the status of connections to W AN, LAN and WLAN interfaces. Status Figure 70 Status Scr een This screen shows Router status and statistics. ADSL Status Figur e 71 ADSL Status Screen Thi[...]

Status and Logs 81 A TM PVC Status Figure 72 A TM PVC Status Sc reen This screen shows A T M PVC status and statist ics. ■ Click Disconnect to disco nnect from your ISP . ■ Click Connect to connect to your ISP . Logs Figure 73 Logs Scr een This screen shows any attempts that have been made to gain access to your network as well as the system ac[...]

82 C HAPTER 5: C ONFIGURING THE R OUTER Support/Feedback Y ou can use the Support/Feedback sc reen to obtain support and help. Support Figure 74 Support Scr een This screen shows support information. Feedback T o pr ovide feedback to 3Com, please click Provide Fee dback , and this wil l connect you to 3Com Web site. Figure 75 Feedback Scr een This [...]

6 T R OUBLESHOOTING Basic Connection Checks ■ Check that the Router is connected to your computers and to the telephone line, and that all the e quipment is powered on. Check that the LAN Status and SYNC LEDs on th e Router are illuminated, and that any corresponding LEDs on the NIC ar e also illuminated. ■ Ensure that the computers have co mp [...]

84 C HAPTER 6: T ROUBLESHOOTING ■ If you cannot b rowse to the Router , use the winipcfg utility in Wi ndows 95/98/ME to verify that your computer has received the correct addr ess information fr om the Router . From the Start menu, choose Run and then enter winipcfg . Check t hat the computer ha s an IP addr ess of the form 192.168. 1.xxx (where[...]

Wireless Networking 85 4 Press and hold the Reset button on the r ear panel (see “Rear Panel” on page 13 ) for 5 seconds. 5 The Router will r estart, and when th e start-up sequence has completed, browse to: http://192.168.1.1 and run the co nfiguration wizard. Y ou may need to restart your compu ter before you attempt this. 6 When the configur[...]

86 C HAPTER 6: T ROUBLESHOOTING Additionally consider moving the wireless computer closer to the Router to co nfirm that the building stru cture or fittings are not adversely affecting the connectivity . If this r esolves the problem consider relocating the Wireless computer or the Router , or trying a differ ent channel on the Router . ■ Sources[...]

Recovering from Corrupted Software 87 Recovering from Corrupted Software If the system softwar e has become corrupted, the Router will enter a “rec overy” state; DHCP is enable d, and the LAN IP addr ess is set to 192.168.1.1. Follow the instructions below to upload a new copy of the system software to a Router unit in this state. Ensure that o[...]

88 C HAPTER 6: T ROUBLESHOOTING Frequently Asked Questions How do I re set the Router to Factory Defaults? See “Forgotten Password and Reset to Factory Defaults” on page 84 . How many computers on the LAN does the Router sup port? A maximum of 253 computers on the LAN are supported. How many wireless clients does the Router support? A maximum o[...]

A 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[...]

90 A PPENDIX A: IP A DDRESSING For your network to work correctly , all devices on the network 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. 100.8’. However , the size of the n[...]

How does a Device Obtain an IP Addr ess and Subnet Mask? 91 This type of IP Address operates on a subnet mask of ‘255.255.0.0’. See Ta b l e 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[...]

92 A PPENDIX A: IP A DDRESSING an IP address at random fr om th e industry s tandard subnet of 169.254.x.x (with a s ubnet mask of 255.255.0 .0). If t wo devices allocate themselves the same address, the c onflict is detected and one of the devices allocates itse lf a new addr ess. Automatic IP addressing support was intr oduced by Microsoft in the[...]

B T ECHNICAL S PECIFICATIONS This section lis ts the technical spec ifications for the OfficeConnect ADSL Wi reless 11g Fire wall Router . OfficeConnect ADSL Wireless 11g Firewall Router Interfaces DSL connection LAN connection — four 10Mbp s/100Mbps dual speed Ether net ports (10BASE-T/100BASE-TX) WLAN Interfaces Standard IEEE 802.11g, Direct Se[...]

94 A PPENDIX B: T ECHNICAL S PECIFICATIONS Maximum clients: 128 O/P Power 16dBm Operating T emperatur e 0 °C to 40 °C (32 °F to 105 °F) Power 8V A, 25 BTh U/hr Humidity 0% to 90% (non-condensing) humidity Dimensions ■ Wi dth = 220 mm (8.7 in.) ■ Depth = 133 mm (5.2 in.) ■ Height = 38 mm (1.5 in.) Wei g ht Approximately 550 g (1.1 lbs) Sta[...]

OfficeConnect ADSL Wireless 11g Firewall Router 95 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 ndows XP ■ Mac OS 8.5 or higher ■ Unix Ethernet Performance The Router complies to the IEEE 802.3i, u and x specificati[...]

96 A PPENDIX B: T ECHNICAL S PECIFICATIONS[...]

C S AFETY I NFORMATION Important Safety Information WAR NI N G : War nings conta in directions that you must f ollow for your personal safety . Follow all directions carefu lly . Y ou must read the following safety information carefully before you install or remove the unit: WAR NI N G : The Router generates and uses radio frequency (rf) energy . I[...]

98 A PPENDIX C: S AFETY I NFORMATI ON WARNING: RJ-45 ports. These are shielded RJ-45 data sockets. They cannot be used as telephone so ckets. Only conn ect RJ-45 data connectors to these sockets. Wichtige Sicherheitshinweise VORSICHT : Warnhinweise enthalten Anweisungen, die Sie zu Ihrer eigenen Sicherheit befolgen müssen. Alle Anweisun gen sind s[...]

99 VORSICHT : Es sind keine von dem Benutzer zu ersetzende od er zu wartende T eile in dem Gerät vorhanden. Wenn Sie ein Problem mit dem Router haben, das nicht mittels der Fehleranalyse in dieser Anleitung behoben werden kann, setz en Sie sich mit Ihrem Lieferante n in V erbind ung. VORSICHT : V or dem Ausbau des Gerä ts das Netzadapterkabel her[...]

100 A PPENDIX C: S AFETY I NFORMATION conditions ne sont maintenues que si l'équipement auquel il est raccordé fonctionne dans les mêmes conditions. A VERTISSEMENT : Il n’y a pas de parties remplaceables par les utilisateurs ou entretenues pa r les utilisateurs à l’in térieur du moyeu. Si vous avez un problème physique av ec le moyeu[...]

D E ND U SER S OFTWAR E L ICENSE A GR EEMENT 3Com Corporation END USER SOF TW ARE LICENSE AGREEMENT YOU SHOULD CAREFULLY READ THE FOLLOWING TERMS AND CO NDITIONS BEFORE DOWNLOADING, INSTALLING AND USING THIS PRODUCT, THE USE OF WHICH IS LICENSED BY 3COM CORPORATIO N ("3COM") TO ITS CUSTOMERS FOR THEIR USE ONLY AS SET FORTH BELOW. DOWNLOAD[...]

102 A PPENDIX D: E ND U SER S OFTWARE L ICENSE A GREEMENT and developed solely at private expense. Th e Sof tware is delivered as "Commercial Comp uter Software" as defined in DFARS 252.22 7-7014 (June 1995) or as a commercial item as defined in FAR 2.101(a) and as such is provid ed with only suc h rights as are provided in this Agreement[...]

E O BTAINING S UPPORT FOR Y OUR P R ODUCT Register Y our Product W arranty and other service benefits start from the date of purchase, so it is important to register your product quickly to ensure you get full use of the warranty and other service benefits available to you. W arranty and other service benefits are enabled thr ough product re gistra[...]

104 A PPENDIX E: O BTAINING S UPPORT FOR Y OUR P RODUCT T r oubleshoot Online Y ou will find support tools posted on the 3Com W eb site at www.3com.com . 3Com Knowledgebase helps you troubleshoot 3Com products. This query-based interactive tool is located at http://knowledgebase.3com.com and contains thousands of technical solutions written by 3Com[...]

Contact Us 105 T o send a pr oduct directly to 3Com for repair , you must first obtain a return authorization number (RMA). Products sent to 3Com, without authorization numbers clearly marked on the outside of the package, will be r etur ned to the sender unopened, at the sender’ s expense. If your product is r egistered and under warranty , you [...]

106 A PPENDIX E: O BTAINING S UPPORT FOR Y OUR P RODUCT Austria Belgium Denmark Finland France Germany Hungary Ireland Israel Italy 0800 297 468 0800 71429 800 17309 0800 11315 3 0800 91795 9 0800 182 150 2 06800 12813 1 800 553 1 17 1800 945 379 4 800 879489 Luxembourg Netherlands Norway Poland Portugal South Africa Spain Sweden Switzerland U.K. 8[...]

Contact Us 107 US and Canada T el ephone T echni cal Suppor t and Repair 1 800 876 3 266 Country Telephone Number Country Telephone Number[...]

108 A PPENDIX E: O BTAINING S UPPORT FOR Y OUR P RODUCT[...]

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[...]

110 G LOSSARY common speed. The order of prefer ence (best first) is: 100BASE- TX full duplex, 100BASE-TX half duplex, 10BASE-T full duplex, an d 10BASE-T half duplex. Auto-negotiat ion is defi ned in the IEEE 802.3 standard for Ethernet and is an operation that takes place in a few milliseconds. Bandwidth The information capa city , measured in bi[...]

G LOSSARY 111 host computers and th eir respective do main names and IP addresses, so that when a domain name is requested (as in typing “3com.com” into your Internet browser), the user is sent to the proper IP address. The DNS server address used by the computers on your home network is the location of the DNS server you r ISP has as signed. D[...]

112 G LOSSARY IEEE Institute of Electrical and Electr onics Engineers. This American organization was founded in 1963 and set s standards for computers and communications. IETF Internet En gineering T ask For ce. An organization responsible for providing engineering solutions for TCP/IP networks. In the network management area, this gr oup is re sp[...]

G LOSSARY 113 MAC Media Access Contr ol. A protocol spec ified by the IEEE for determining which devices have access to a network at any one time. MAC Address Media Access Control Addr ess. Also called the hardwar e or physical address. A layer 2 address associated with a particular network device. Most devices that connect to a L AN have a MAC add[...]

114 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. Server A computer in a network that is shared by multiple end stations. Servers pr ovide end statio ns with access to shar ed network services such as comput[...]

G LOSSARY 115 universal plug and play Universal plug an d play is a system which allows compatible applications to read some of their settings fr om the Router . This allows them to automatically configure some, or all, of their settings and need less user configuration. URL Filter A URL Filter is a featur e of a fir ewall th at allows it to stop i[...]

116 G LOSSARY WLAN Wi reless Local Ar ea Network. A WLAN is a group of computers and devices connected together by wireless in a r elatively small area (such as a house or office). WP A W i-Fi Protected Access. A dynamically changing encryption mechanism for wireless networking. Encryption strength is 256 bit.[...]

117 R EGULATORY N OTICES G ENERAL S TATEMEN TS The 3Com OfficeConnect ADSL 11g Firewall Router, Model Number: WL-542 (3CRWDR100A -72, 3CRWDR100A-72, 3 CRWDR100A-72) must b e installe d and used in strict accor dance with the manufacturer's instr uctions as descri bed in the user doc umentation that comes with the product. This product contains[...]

118 interference that may cause undesired operation. I NDUSTRY C ANADA - RF C OMPLIA NCE This device complies with RSS 210 of Industry Canada. Operation is subject to the followin g two conditions: (1 ) this devic e may not caus e interference, and (2) this device must accept any interfere nce, includin g interference that may cause undesired oper [...]

119 NOTE: To ensure product operation is in complian ce with local regulations, select the count ry in which the product is ins talled. Refer to 3 CRWDR100A-72, 3CRWD R100A-72, 3CRWDR1 00A-72 User Guid e. A copy of the signed Declaration of Conformity can be down loaded from the Product Support w eb page for the 3Com OfficeConnect ADSL 11g Fi rewa [...]

120 EU - R ESTRICTIONS FOR U SE IN THE 2.4GH Z BAND This device may be operated indoors or outdoors in all countries of the European Community using the 2.4GHz band: Channels 1 - 13, except where noted below. ■ In Italy the end-user must apply for a license from the national spectrum authority to operate thi s device outdoors. ■ In Belgium outd[...]

I NDEX Numbers 128-bit WEP 46 128-bit WEP Screen 46 1483 Bridge Mode 55 64-bit WEP Screen 47 A Access Control Scr een 62 Add PC Screen 63 Add Schedule Rule Screen 65 Addresses IP 85 Admin Password Screen 75 ADSL Status Screen 77 Advanced Screen 68 Automatic Addressing 87 B Backup/Restore Settings Scr een 74 Bridge Mode for Si ngle PC Screen 53 Brid[...]

122 I NDEX configuring 56 MAC Address Filte ring Screen 66 mode 30 N NA T (Network Address T ranslation) 68 NA T -T (NA T T raversal) 68 Network addresses 8 5 Networking wirele ss 81 NIC wireless 14 P Passwor d 27, 75 Poison Reverse 58 PPPoA 31 PPPoA Screen 31 PPPoA Settings Screen 52 PPPoE 26, 30, 31 PPPoE Screen 30 PPPoE Settings Screen 51 R Remo[...]