3Com 3CR858-91 manual

http://www.3com.com/ Part No. DUA8589-1AAA01 Rev . 01 Published July 2004 Of ficeConnect ® Cable/DSL Router User Guide 3CR858-9 1[...]

3Com Corporati on 350 Campus Drive, Marlborough, M A USA 01752-3064 Copyright © 2 004, 3Com Corporation. All rights reserved . No part of this documen tation may be reproduced in any form or by any means or used to make any derivative work (such as tran slation, transf ormation, or adaptation) without writt e n permission fr om 3Com Corporation. 3[...]

C ONTENTS A BOUT T HIS G UIDE Naming Convention 7 Conventions 8 Feedback about this User Gui de 8 Related Documenta tion 9 1 I NTRO DUCING THE R OUTER OfficeConnect Cable/DSL Rout er 11 Router 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 17 Safe[...]

Disabling W e b Proxy 24 4 R UNNING THE S ETUP W IZARD Accessing the Wizard 25 Password 27 Tim e Z on e 28 Connection T ype 2 9 DNS 35 Hostname and MAC Address 36 LAN Settings 37 Configuration Summary 38 5 R OUTER C ONFIGURATION Navigating Thr ough the Router Configuration Pages 39 Main Menu 39 LAN Settings 40 Internet Sett ings 42 Connection to IS[...]

Admin Passwor d 76 Time Zone 77 Advanced 79 NA T 79 Universal Plug and Play 80 W AN Ping Blocking 81 Remote Admi nistration 81 Routing 82 DDNS 86 Status and Logs 87 Status 87 T raf fic Metering 88 Logs 88 Support/Feedback 89 Support 89 Feedback 90 6 T RO UBLESHOOTING Basic Connection Ch ecks 91 Browsing to the Router Configuration Screens 91 Connec[...]

B ISP I NFORMATION C T ECHNICAL S PECIFICATIONS OfficeConnect Cable/DSL Rout er 105 Standards 105 D S AFETY I NFORMATION E O BTAINING S UPPORT FOR YOUR P R ODUCT Register Y our Product to Gain Service Benef its 111 Purchase V alue-Added Services 111 T roubleshoot Online 111 Access Software Downloads 112 Contact Us 112 T elephone T echnical S upport[...]

A BOUT T HIS G UIDE This guide describes how to install and co nfigure the Of ficeCon nect Cable/DSL Router (3CR858-91). This guide is intended for use by th ose responsible for installing and setting up network equipment; consequ ently , it assumes a b asic working knowledge of LANs (Local Area Networks) and In terne t Routers. If a release note i[...]

8 A BOUT T HIS G UIDE Conventions Ta b l e 1 and Ta b l e 2 list conventions that are used throughout 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 include [...]

Conventions 9 Example: ■ OfficeConnect Cable/DSL Router Us er Guide ■ Part Number DUA8589-1AAA01 ■ Page 24 Do not use this e-mail address for technical support questions. For information about contacting T ech nical Support, please refer to Appendix E “Obtaining Suppor t for your Product” . Related Documentation In addition to this guide,[...]

10 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 large businesses could af for d the networking advantage. OfficeConnect Cable/[...]

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

Router Advantages 13 Router Advantages The advanta ges of the Router in clude: ■ Shared Internet connection for wir ed computers. The Cable/DSL Router also provides shar ed inter net connection ■ No need for a dedicated, “alway s on” computer serving as your Internet connection ■ Cross-platform operation for comp atibility with W indows, [...]

14 C HAPTER 1: I NTRODUCING THE R OUTER 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 supports TCP/IP networking protocols (for exam ple Windows 95/98/NT/Me/2000 /XP , Unix, Mac OS 8.5 or hi[...]

Front Panel 15 In each of these cases, wait un til the Router has completed the cu rrent operation and the alert LED is Off. Flashing slowly - The Router has completed the Reset to Factor y Defaults process, and is w aiting for you to reset the unit. T o do this, r emove power , wait 10 seco nds and then re-apply power . The Router will then enter [...]

16 C HAPTER 1: I NTRODUCING THE R OUTER Rear Panel The rear panel ( Figur e 4 ) of the Router contains four LAN ports, one Ether net Cabler/DSL port, a nd a power adapter socket. Figure 4 Router - Rear Panel 5 Power Adapter Socket Only use the power adapter sup plied with this Router . Do not use a ny other adapter . 6 Ethernet Cable/DSL port Use t[...]

2 H AR DWAR E I NSTALLATION Introduction This chapter will guide you thr ough a basic installation of the Router , including: ■ “Positioning the Router” . ■ “Connecting the Rou ter” . Safety Information WAR NI N G: Please read the “Safety Information” section in Appendix D before you start. VORSICHT : Bitte lesen Sie den Abschnitt ?[...]

18 C HAPTER 2: H ARDWARE I NSTALLATION ■ W ater or moisture cannot enter the case of the un it. ■ Air flow around the unit and through the vents in the side of the case is not restricted. 3Com recommends you provide a minimum of 25 mm (1 in.) clearance. Using the Rubber Feet Use the four self-adhesive rubb er feet to prevent your Router from mo[...]

Connecting the Router 19 3 Ensure that your modem and compu ter are both switched on. 4 Use the supplied cable to connect the Router’ s Ether net Cable/DSL port to the modem. Check that the Cable/DSL Status LED lights. 5 Connect your computer to one of the 10/100 LAN ports on the Router . Check that the LAN Status LED for the port lights green. S[...]

20 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 addresses 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 an[...]

22 C HAPTER 3: S ETTING U P Y OUR C OMPUTERS Figure 6 Local Ar ea Properties Screen 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 23 Windows XP If you ar e using a W indows XP computer , use the following procedur e to change your TCP/IP settings: 1 From the Windows Start menu, select 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. [...]

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, select Settings > Control Panel . 2 Double click on Internet Options. 3 Select the Connectio ns T ab. A scr e en similar to F[...]

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 or Internet Explorer). T o use the Setup W izar d: 1 Ensure that you have at least one computer connected to the Router . Refer to Chapter 2 for details on how to do this. 2 Launch [...]

26 C HAPTER 4: R UNNING THE S ETUP W IZARD The Login screen displays ( Figure 10 ). Figure 10 Router Login Scr ee n 4 Log in by typing the administrato r passwor d (the d efault passwor d is admin ) in the System Password field, and clicking Log in . Be sure to bookmark this screen for easy reference if yo u should want to change the Router setting[...]

Accessing the Wizard 27 Password Figur e 11 Admin Password Screen In the Admin Password screen ( Figur e 11 ) 1 Ty p e t h e Current Password . 2 T ype a new password in both the New Password and Confirm New Password boxes. 3 Ty p e i n a Login Timeout . This is the amount of time yo u want the Router to remain inactive befor e it returns to th e l[...]

28 C HAPTER 4: R UNNING THE S ETUP W IZARD Time Zone Figure 12 T ime Zone Screen The Router kee ps time by connecting to a Simple Network T ime Protocol (SNTP) server . This allows the Router to synchr onize the system clock to the Inter net. The synchonized clock in the Router is used to recor d the security log. T o set the time zone for your Rou[...]

Accessing the Wizard 29 down lists. It does not cause the system clock to be updated for daylight savings time automatically . 8 Click Next to display the Connection T ype screen. Connection T ype Figure 13 Connection T ype Screen This Connection T ype screen allows you to set up the Router for the type of Internet conn ection you have. Be fore set[...]

30 C HAPTER 4: R UNNING THE S ETUP W IZARD Dynamic IP Address Mode Figure 14 Dynamic IP Scr een 1 Some ISPs require a host name. If your ISP has this requir ement, enter the host name in the Host Name text box . 2 Either: ■ If your ISP r equires an assigned MAC addr ess, enter the values for a MAC address . Or , ■ If the computer you are now us[...]

Accessing the Wizard 31 PPPoE Mode Figure 15 PPPoE Interface Scr een T o setup the Router for use with a PP P over Ether net (PPPoE) connection, do the following: 1 Enter your PPP over Ether net user name in the User Name text box. 2 Enter your PPP over Ether net password in the Password text box and enter it again in the Retype Password text box. [...]

32 C HAPTER 4: R UNNING THE S ETUP W IZARD PPTP Mode Figure 16 PPTP Screen T o setup the Router for use with a PPTP connection, use the following procedur e: 1 Enter your PPTP server addr ess in the PPTP Server Address text box. 2 Enter your PPTP user nam e in the User ID text box. 3 Enter your PPTP password in the Password text box, and enter it a[...]

Accessing the Wizard 33 Figure 17 L2TP Scr een T o setup the Router for use with an L2TP connection, do th e following: 1 Enter your L2TP se rver address in the L2TP S erv er text box. 2 Enter your L2TP user name in the User ID text box. 3 Enter your L2TP password in the Password text box, and enter it again in the Retype Password text box. 4 Ty p [...]

34 C HAPTER 4: R UNNING THE S ETUP W IZARD Static IP Mode Figure 18 Static IP Mode Screen 1 Enter the IP Address pr ovided by your ISP in the IP Address assigned by your Service Pr ovider text box. 2 Enter the Subnet Mask provid ed by your ISP in the Subnet Mask te xt box. 3 Enter the Gateway Address provided by your ISP in the Ser vice Provider Ga[...]

Accessing the Wizard 35 DNS Figure 19 DNS Screen T o set up the Domain Name Server (DNS) information for your Rou ter , do the following: 1 Either: ■ Check the Automatic from ISP check box. Or , ■ If your ISP has provided you with a specific DNS addr ess to use type the DNS Address in the text box. Optionally , you can type a Secondary DNS Addr[...]

36 C HAPTER 4: R UNNING THE S ETUP W IZARD Hostname and MAC Address Figure 20 Hostname and MAC Addr ess Screen 1 Some ISPs require a host name. If your ISP has this requir ement, enter the host name in the Host Name text box. 2 Either: ■ If your ISP r equires an assigned MAC addr ess, enter the values for a MAC address . Or , ■ If the computer [...]

Accessing the Wizard 37 LAN Settings Figure 21 LAN Settings Scr een LAN Configuration This section of th e screen displa ys a suggested LAN IP Address and Subnet Mask for the Router . It also allows you to change the IP address and subnet mask. DHCP Server Parameters The Router con tains a Dynamic Host Configuration (DHCP) server that can automatic[...]

38 C HAPTER 4: R UNNING THE S ETUP W IZARD Configuration Summary Figure 22 Configuration Summary Scr een When you complete the Setup Wizard , a configuration summary displays. V erify the configuration information of the Router and then click Apply to save your settings. 3Com recommends that you print this page for your rec o rds . If you have made[...]

5 R OUTER C ONFIGURATION Navigating Through the Router Configuration Pages This chapter describes all the scr eens available thr ough the Router configuration pages. T o get t o the configuration pages, browse to the Router by entering the URL in the location bar of your browser . The default URL is http://192.168.1.1 but if you changed the Router [...]

40 C HAPTER 5: R OUTER C ONFIGURATION Figure 23 Main menu and Fir ewall sub-menu LAN Settings 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 server will work in most applications . If you need to make changes to the settings, you c[...]

LAN Settings 41 T o configure the LAN Settings: 1 Select LAN Settings from the main menu to display the LAN Settings screen ( Figur e 24 ). Figure 24 LAN Settings scr een 2 Specify the Route r IP Address and Subnet Mask in the appropriate fields. The default IP address of the Router is 192.168.1.1. 3 If you want to use the Router as a DHCP Server ,[...]

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

Internet Settings 43 When you install the Router , you will not need to use the PPPoE software on your PC. PPTP (DSL or Cable) PPTP is only used by some Europe an providers. If the installation instructions that accompany your mode m ask you to setup a dia lup connection using a PPTP VP N tunnel then select this opt ion. T o configure the Router yo[...]

44 C HAPTER 5: R OUTER C ONFIGURATION ■ Dynamic IP Address (automat ically allocated) — see p age 44 . ■ PPPoE (used by DSL providers only) — see page 45 ■ PPTP (used by some Eu ropean pr ovid ers) — see page 46 ■ L2TP (supported by some ISPs) — see page 47 ■ Static IP Address (to be specified manually) — see page 48 Dynamic IP [...]

Internet Settings 45 PPPoE T o configure the PPPoE connection for your Router: 1 Select PPPoE and then click Next . The PPPoE Interfa ce scr een displays (see Figur e 26 ). Figure 26 Internet Settings - PPPoE Interface Screen 2 Enter your PPP over Ether net user name in the User Name text box. 3 Enter your PPP over Ether net password in the Passwor[...]

46 C HAPTER 5: R OUTER C ONFIGURATION PPTP T o configure the PPTP connection for your Router: 1 Select PPTP and then click Next . The PPTP scr een displays (see Figure 27 ). Figure 27 Internet Settings - PPTP Screen 2 Enter your PPTP server addr ess in the PPTP Server Address text box. 3 Enter your PPTP user nam e in the User ID text box. 4 Enter y[...]

Internet Settings 47 L2TP Check with your ISP to make sure they suppo rt L2TP . T o configure the L2TP connection for your Router: 1 Select L2TP and then click Next . The L2TP screen displays (see Figure 28 ). Figure 28 Internet Settings - L2TP Screen 2 Enter your L2TP se rver address in the L2TP S erv er text box. 3 Enter your L2TP user name in th[...]

48 C HAPTER 5: R OUTER C ONFIGURATION Static IP Address T o configure a Static IP Addr ess for your Router: 1 Select Static IP Add ress and then click Next . The Static IP Addr ess scre en displays (see Figure 29 ). Figure 29 Internet Settings - Static IP Screen 2 Enter the IP Address pr ovided by your ISP in the IP Address assigned by your Service[...]

Internet Settings 49 DNS T o configure the Domain Name Server (DNS) information for your Router , do the following: 1 Select Internet Settings , then from the sub-menu select DNS . The DNS screen displays (see Figur e 30 ). Figure 30 Internet Settings - DNS Screen 1 Either: ■ Check the Automatic from ISP check box. Or , ■ If your ISP has provid[...]

50 C HAPTER 5: R OUTER C ONFIGURATION Hostname & MAC T o configure the Hostname and MAC Address information for your Router , do the following: 1 Select Internet Settings , then from the sub-menu select Hostname & MAC . The Hostname and MAC Ad dress scr e en displays (see Figure 31 ). Figure 31 Internet Settings - Hostname and MAC Address S[...]

Firewall 51 ■ Special Applications — Sp ecial Applications allows you to specif y ports to be open for specific applications to work p roperly with the Network Address T ranslation (NA T) feature of the Router . See “Special Applications” on page 54 . ■ Virtual Servers — This functi on enables you to route external (Inter net) calls for[...]

52 C HAPTER 5: R OUTER C ONFIGURATION T o configure SPI information on your Router: 1 Select Fire wall from the main menu, then select SPI fr om the sub-menu to display the SPI screen ( Figure 32 and Figur e 33 ): Figure 32 SPI Scr een - upper section Figure 33 SPI Scr een - lower sec tion Intrusion Detection Featur e The Intrusion Detection featur[...]

Firewall 53 3 If requir ed , check the RIP defect check box. This feature stops unacknowledged packets from accu mulating in the input queue. Stateful Packet Inspection 4 The Stateful Packet Insp ection section displays a list of traffic types. If you leave the check box for a traf fic type blan k, this traf fic type is b locked. If you check the c[...]

54 C HAPTER 5: R OUTER C ONFIGURATION DoS Detect Criteria 15 In the T otal incomplete TCP/UDP sessions HIGH text box, enter the number of unestablished sessions that will cause the software to start deleting half-open session s. The defaiult is 300. 16 In the T otal incomplete TCP/UDP sessions LOW text box, enter the number of unestablished session[...]

Firewall 55 T o set up one of the listed Special Applications on your Router , do the following: 1 Select Firewall from the main menu, then select Special Applications fr om the sub-menu. The Special Appl ications screen displays ( Figur e 34 ). Figure 34 Special Application Scr een 2 Select an application from the Popular Applications dr op- down [...]

56 C HAPTER 5: R OUTER C ONFIGURATION 4 Click Apply to save the setting for this application . Virtual Servers This function will allow you to route external (Inter net) calls for services such as a web server (port 80), F TP ser ver (Port 21), or other applications through your Router to your inter n al network. Since your intern al computers are [...]

Firewall 57 Figure 36 Virtual Server - Add/Edit Scr een 3 Enter the IP address of the internal machine in the LAN IP Address text box. 4 Select a protocol type (TCP , UDP or both) fr om the Protocol T ype dr op-down list. 5 Enter the LAN Port which the traf fic will be r outed to in the LAN Port text box. 6 Enter the Public port that will be seen b[...]

58 C HAPTER 5: R OUTER C ONFIGURATION T o configure Access Contr ol, do the following: 1 Select Firewall from the main menu, then select Client IP Filters from the sub-menu, and make sure the Access Control tab is selected . The Access Control screen displays ( Figur e 37 ). Figure 37 Access Contr ol Screen 2 At the Enable Filtering Function radio [...]

Firewall 59 T o control access to spec ific Internet services: 1 Click on Add PC, or click Edit in the Configure column to edit an existing entry . The Access Control - Add PC scr e en displays ( Figure 38 ). Figure 38 Access Contr ol - Add PC S creen 2 Enter a description for the filter you are defining in th e Client PC Description field. 3 Enter[...]

60 C HAPTER 5: R OUTER C ONFIGURATION Figure 39 URL Filter Scr een T o configure URL Filtering, do the following: 1 Enter the URLs or keywords to be allowed or blocked in the URL/Keywor d column. 2 Select either Denied or Allow ed from the Mode dr op -down list to deny or allow access to w eb site containing the se words. For example, entering a ke[...]

Firewall 61 you set up here ar e available for selection when you configure access control (see “Access Control” on pag e 57 ). T o configure a schedule rule, do the following: 1 Select Firewall from the main menu, then select Client IP Filters from the sub-menu, and select the Schedule Rule tab. The Schedule Rule screen displays ( Figure 40 ).[...]

62 C HAPTER 5: R OUTER C ONFIGURATION Figure 41 Schedule Rule - Add Rule Scr een 3 Enter a name and comment for the schedule rule in the Name and Comment text boxes. 4 Specify the schedule rules for the requ ired da ys and times. Note tha t all times should be in 24 hour format. 5 Click Apply to save the settings. MAC Address Filtering The MAC Addr[...]

Firewall 63 T o set up MAC Addr ess F iltering, do the following: 1 Select Firewall from the main menu, then select MAC Address Filtering from the sub-menu. The MAC Address Filtering screen displays ( Figure 42 ). Figure 42 MAC Addr ess Filtering 2 T o enable this feature, click the Enable radi o button . 3 Enter the MAC address of each client on y[...]

64 C HAPTER 5: R OUTER C ONFIGURATION T o put a computer in the DMZ, do the following: 1 Select Fir ewall from the main menu, then select DMZ from the sub-menu. The DMZ scr een displays ( Figure 43 ). Figure 43 DMZ Scr een 2 Select the ENABLE radi o button . 3 The first r ow in the Public IP Ad dress column defaults to the IP address of the W AN in[...]

VPN 65 connection between two devices, make sure that they support the same encryption method. Enabling IPSec VPN disables pas s-thr ough to IPSec and L2TP over IPSec Virtual Servers on the LAN. Pass-through outbound fr om clients on the LAN to servers on the Internet is unaf fected. ■ PPTP (Point-to-Point T unneling Protocol) — pr ovides a sec[...]

66 C HAPTER 5: R OUTER C ONFIGURATION T o configure a VPN connection on your Router: 1 Select VPN from the main menu.The VPN scr een displays ( Figure 44 ). Figure 44 VPN Scr een 2 In the Enable VPN se ction, select the Ye s radio button for the connection methods you want to use. IPSec must be enable d if you want to use L2TP over IPSec. 3 T o set[...]

VPN 67 Adding an IPSec Connection T o add an IPSec Connection, or to edit an existing IPSec connect ion: 1 In the VPN scr een, click Add , or click Edit to edit an existing co nnection. 2 At the T unnel T ype drop-d own list, sel ect IPSe c . The screen shown in Figur e 45 displays. Figure 45 VPN T unnel Configuration - IPSec Screen 3 Enter a descr[...]

68 C HAPTER 5: R OUTER C ONFIGURATION 8 Enter th e Network Address and Subnet Mask of the local secure gr oup. The network address of the local secure gr oup is usually the networ k address of the local network.From the Key Management drop-down list, select either IKE Main Mode or IKE Aggressive Mode. 9 At the Pre-shared Key text box, enter the pas[...]

VPN 69 Figure 46 VPN T unnel Configuration - L2TP over IPSec Screen 3 Enter a name for the tunnel at the T unnel Name text box. 4 Enter the u ser name that the remote VPN client will use to connect in the User name text box. 5 Enter the password that will need to be supplied to connect in the Password text box. 6 Ty p e i n a n Idle Timeout . This [...]

70 C HAPTER 5: R OUTER C ONFIGURATION 11 T ype a name for the Remote Party ID in the text box next to the drop-down list. This must be unique for each connection rule that you create. 12 Click Apply to save the settings. Adding a PPTP Connection T o add a PPTP Connection , or to edit an existing PP TP connection: 1 In the VPN scr een, click Add , o[...]

SNMP 71 ■ Select either Network or Host as the local type setting. ■ Enter th e Remote Server IP address in the text box. 8 If you want to enter details of the remote network, check the Remote Network Setting - Enable check box, then en ter the Remote Network Address and Remote Subne t Mask . 9 Click Apply to save the settings. SNMP SNMP (Simpl[...]

72 C HAPTER 5: R OUTER C ONFIGURATION 3 In the Community column, enter the name of the SNMP communication channel. Y ou r SNMP management agent needs to be configu red with this name so that it can communicate with your Router . 4 In the Access column, sele ct either: ■ Read to allow the management agent to collect data (for example, bandwidth us[...]

System Tools 73 Refer to the following sections for details on each of these options. Restart Router So metimes it may be necessary to r estart or re boot the Router . Restarting or rebooting the Router will not delete any of your configuration settings. T o restart the Router: 1 Select System T ools from the main menu, then select Restart from the[...]

74 C HAPTER 5: R OUTER C ONFIGURATION T o restor e the factory default settings: 1 Select System T ools from the main menu, then select Reset to Factor y Defaults from the sub-menu. The Reset to Factory Defaults screen displays ( Figure 50 ). Figure 50 Reset to Factory Defaults Scr een 2 Click Reset . Backup/Restore Settings Y ou can save your cu r[...]

System Tools 75 Saving a configuration file T o save a configuration file: 1 Select System T ools from the main menu, then select Backup/Restore Settings fr om the sub-menu. The Backup/Res tore Settin gs scr een displays ( Figure 51 ). Figure 51 Backup/Restor e Settings Screen 2 Click Save to save your current configuration settings. Restoring a co[...]

76 C HAPTER 5: R OUTER C ONFIGURATION T o upload a firmware file from your PC to your Router: 1 Select System T ools from the main menu, then select Upgrade fro m the sub-menu. The Upgrade screen displays ( Figure 52 ). Figure 52 Upgrade Scr een 2 Click Browse to display the list of curr ently saved firmwar e upgrade files. The file you select disp[...]

System Tools 77 T o change the password: 1 Select System T ools from the main menu, then select Admin Password from the sub-menu. The Admin Password scr een displays ( Figure 53 ). Figure 53 Admin Passwor d Screen 2 Enter the current passwor d into the Current password text box. 3 Enter the new password into the New Password and Confirm New Passwor[...]

78 C HAPTER 5: R OUTER C ONFIGURATION T o configure time zone settings: 1 Select System T ools from the main menu, then select Ti me Zo ne from the sub-menu. The Time Zone screen displays ( Figu r e 54 ). Figure 54 Time Zone Screen 2 Select the Base Date an d Base Time . The Router will use these settings if it is unable to connect to the Internet [...]

Advanced 79 Advanced From the Advanced Scr een, you can configure: ■ NA T (Network Address T r anslation) and IPSe c NA T -T (NA T T raversal) Pass-through ■ Universal Plug and Play ■ W AN Ping Blocking ■ Remote Administration The sub-menu topics in the Advanced menu also enable you to config ure Routing options, and to configure Dynamic DN[...]

80 C HAPTER 5: R OUTER C ONFIGURATION T o configure NA T , and IPSec NA T -T Pass-thr ou gh: 1 Select Advanc ed from the main menu. The Advanced screen displays ( Figure 55 ). Figure 55 Advanced 2 T o disable NA T , select the OFF radio bu tton. 3Com recommends that you leave NA T enabled for maximum security . 3 T o enable IPSec NA T -T Pa ss-thro[...]

Advanced 81 want to use any applica tions that ar e Universal Plug and Play compliant, you can enable this featur e. T o enable Universal Plug a nd Play: 1 Select Advanc ed from the main menu. The Advanced screen displays ( Figure 55 ). 2 T o enable Universal Plug and Play , select the ON radio button . 3 If requir ed, con tinue configuring advance[...]

82 C HAPTER 5: R OUTER C ONFIGURATION ■ Check the Any IP address can remo tely manage the router check box if you want any PC to be able to remotely manage the Router . Or , ■ Enter the IP address of the PC that you want to r emotely manage the Router in the Only this IP address can remotely manage the router check box 3 Enter the numb er of th[...]

Advanced 83 ■ Subnet Mask - the subnet mask of the route. If network addr ess and subnet mask are both set to 0.0.0.0, this is the d efault route. ■ Gateway - the gateway used to route data to the network specified by the network address. T o configure a static route: 1 Click on Add to add a new route , or click Edit in the Configure column to [...]

84 C HAPTER 5: R OUTER C ONFIGURATION Figure 58 RIP scr e en T o set up RIP and auto summary , and to set up or change info rmation for the LAN interface, the W AN interface or both: 1 Check the RIP Mode - Enable check box to configure RIP on the Router . 2 Check the Auto Summar y - Enable check box if you want the Router to send simplified routing[...]

Advanced 85 8 Click Apply to save the settings. Routing T able Select the Routin g T able tab from the Advanc ed > Routing sub-menu to display routing information used by the Router . The infor mation is displayed in the format shown in Figure 59 Figure 59 Routing T able screen[...]

86 C HAPTER 5: R OUTER C ONFIGURATION DDNS 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. Befo r e you can set up DDNS, you must obtain an account, passwor d and stat ic domain name from your DDNS provider . DDNS is disabled by default. [...]

Status and Logs 87 DynDNS If you select DYNDNS: 1 In the Domain Name text box, enter the domain name. 2 In the Account text box, enter the account name. 3 In the Password text box, enter the accoun t password. 4 Click Apply to make this service active. Status and Logs Selecting Status and Logs from the main menu displa ys the Status Screen, and als[...]

88 C HAPTER 5: R OUTER C ONFIGURATION T raffic Metering The T raffic Metering scr een displays the amount of data transmitted to and receiv ed from the Internet. This information is pr ovided for guidance only , and may differ fr om that used by your ISP for billing purposes. T o view the T raffic Metering screen: 1 Select Status and Logs from the [...]

Support/Feedback 89 T o display log information: 1 Select Status and Logs from the main menu, then select Logs from the sub-menu. The Logs screen displays ( Figure 63 ): Figure 63 Logs Scr een 2 Either: ■ Click Refresh to update the display . Or , ■ Click Clear to clear the log (note that all curr ent entries will be erased). Or , ■ Click Sav[...]

90 C HAPTER 5: R OUTER C ONFIGURATION Figure 64 Support Scr een Feedback Selecting the Feedback option on the sub-menu disp lays the Feedba ck screen and allows you to pr ovide fee dback to 3Com on the operat ion of your Router ( Figure 65 ). This scr een should not be used to obt ain technical support. Figure 65 Feedback Scr een[...]

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 LED and Cable/DSL Stat us LED on the Ro uter are illuminated, and that any corresponding LEDs on the NIC ar e also illuminated. ■ Ensure that the compu[...]

92 C HAPTER 6: T ROUBLESHOOTING Connections tab and click on the LAN Settings button at the bottom. Make sure that the Proxy Ser ver option is unchecked. ■ 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 from the Router . From the Start [...]

Forgotten Password and Reset to Factory Defaults 93 Forgotten Password and Reset to Factory Defaults If you can browse to the Router configuration screen but cannot log in because you do not know or have forgotten the password, follow the steps below to r eset the Router to it’ s factory default configuration. CAUTION: All your configuration chan[...]

94 C HAPTER 6: T ROUBLESHOOTING the Router software on the accompanying CD-ROM or 3Com web site ( http://www.3com.com ) and upload it to the Router to see if th is clears the fault (refer to “Recovering from Corrupted Software” below). If this does not fix the pr oblem, contact your supplier for further advice. ■ During normal operation, you [...]

Recovering from Corrupted Software 95 Ta b l e 3 Power Adapter P art Numbers Recovering from Corrupted Software If the system softwar e has become corrupted, the Router will enter a “rec overy” state; DHCP is enabled, and the LAN IP addr ess is set to 192.168.1.1. Follow the instruct ions below to upload a new copy of the system software to a R[...]

96 C HAPTER 6: T ROUBLESHOOTING 7 Refer to the Installation Guid e to reconnect your Router to the computers in your network. Do not forget to reconfigure the computer you used for the software upload. If the Router does not resume normal operation following the upload, it may be faulty . Contact your supp lier for advice. Frequently Asked Question[...]

Frequently Asked Questions 97 After you have downloaded the software from the 3Com W eb site, yo u can upgrade your Router as described in “Upg rade” on page 75 .[...]

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

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 Pr otocol/Inter ne t Protocol (TCP/IP) is probably the most widely known and is a combination of two of the protocols (IP and TCP) working togeth[...]

100 A PPENDIX A: 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. 100.8’. However , the siz e of th[...]

How does a Device Obtain an IP Addr ess and Subnet Mask? 101 This type of IP Address operates on a subnet mask of ‘255.255.0.0’. See Ta b l e 5 for an example about how a network (only four computers repr esented) and a Router might be configured. Ta b l e 5 IP Addressing and Subnet Masking How does a Device Obtain an IP Address and Subnet Mask[...]

102 A PPENDIX A: IP A DDRESSING an IP address at random fr om th e industry stan dard subnet of 169.254.x.x (with a s ubnet mask of 255.255.0 .0). If two 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 ISP I NFORMATION Information Regarding Popular ISPs WAN Types Characteristics Popular ISPs Dynamic IP (Clone MAC) Cable modem ISP, non-ho stname based. Need to clone the MAC address in the Advanced tab of the Internet Settings page. MediaOne, RoadRunner, Optimum Online, Time Warner, Charter, Adelphia, Metrocast. Dynamic IP (Hostname) Cable ISP, R[...]

104 A PPENDIX B: ISP I NFORMATION *Bell includes Bell Advantage, Bell Canada, Bell South, PacBell and Southwester n Bell. Static (DSL) DSL Modem, always on. Need to enter ALL IP information from ISP in the Static IP address section of the Internet Settings page. CableSpeed, Cnet, Direct Link, Drizzle, DSL Extreme, E arthlink Wireless, Fast Point, F[...]

C T ECHNICAL S PECIFICATIONS This section lis ts the technical sp ecificatio ns for the OfficeConnect Cable/DSL Router . OfficeConnect Cable/DSL Router Interfaces Cable/DSL modem connection — 10 Mbps/100 Mbps dual speed Ether net port (10BASE-T/100 BASE-TX) LAN connection — four 10Mbp s/100Mbps dual speed Ether net ports (10BASE-T/100BASE-TX) O[...]

106 A PPENDIX C: T ECHNICAL S PECIFICATIONS Safety: UL60950 EN 60950 CSA 22.2 #60950 IEC 60950 EMC: EN 55022 Class B EN 55024 CISPR 22 FCC Part 15 Class B* ICES-003 Class B CNS 13438 Class A ETSI EN 301 489–17 Environmental: EN 60068 (IEC 68) *See “Regulatory Notices” on page 129 for conditions of op eration. System Requirements Operating Sys[...]

D S AFETY I NFORMATION Important Safety Information WAR NI N G : Warnings cont ain dire ctions tha t you must follo w for your personal safety . Follow all directions carefully . Y ou must read the following safety information carefully before you install or remove the unit: WAR NI N G : Exceptional care must be taken during installation and remova[...]

108 A PPENDIX D: S AFETY I NFORMATION Wichtige Sicherheitshinweise VORSICHT : Warnhinweise enthalten Anweisungen, die Sie zu Ihrer eigenen Sicherheit befolgen müssen. Alle Anweisun gen sind sorgfältig zu befolgen. Sie müssen die folgenden Sicherheitsinformationen sorgfältig durchlesen, bevor Sie das Gerä ts installieren oder ausbauen: VORSICHT[...]

109 Consignes importantes de sécurité A VERTISSEMENT : Les avertissements présentent des consignes que vous devez respecter pour garantir votre sécurité personnelle. V ous devez respecter attentivem ent toutes les consignes. Nous vous demandons de lire attent ivement les consignes suivantes de sécurité avant d’installer ou de retire r l’[...]

110 A PPENDIX D: S AFETY I NFORMATION Información de seguridad importante ADVERTENCIA : Las advertencias contie nen indicaciones que debe respetar por su seguridad personal. Siga las indicaciones con cuidado. Antes de instalar o retirar la unidad, debe leer detenida mente l a siguiente información de seguridad. ADVERTENCIA : Debe tener especial c[...]

E O BTAINING S UPPORT FOR YOUR P R ODUCT Register Y our Product to Gain Service Benefits T o take advantage of warranty and ot her service benefits, you mu st first register your product at http://eSupport.3com.com/ . 3Com eSupport services are based on accounts that you cr eate or have authorization to access. First time users must apply for a use[...]

112 A PPENDIX E: O BTAINING S UPPORT FOR YOUR P RODUCT http://www.3com.com/prodforms/softwa re/connection_assistan t/ca_thankyou.html Access Software Downloads Software Updates are the bug fix / maintenanc e releases f or the version of software initially pur chased with th e product. In order to access these Software Updates you must first registe[...]

Telephone Technical Support and Repair 113 be r etur ned to the sender unopened, at the sender’ s expense. If your product is r egistered and under warranty , you can obtain an RMA number online at http://eSupport.3com.com/ . First time users will need to apply for a user name and passwor d. T elephone numbers are corr ect at the time of publicat[...]

114 A PPENDIX E: O BTAINING S UPPORT FOR YOUR P RODUCT Latin America T elephon e T echni cal Support an d Repair Antigua Argentina Aruba Bahamas Barbados Belize Bermuda Bonaire Brazil Cayman Chile Colombia Costa Rica Curacao Ecuador Dominican Republic 1 800 988 2 112 0 810 444 3 COM 1 800 998 2 112 1 800 998 2 112 1 800 998 2 112 52 5 201 0010 1 80[...]

F E ND U SER S OFTWAR E L ICENSE A GR EEMENT IMPOR T ANT : READ BEFORE INST ALLING THE SOF TW ARE 3Com END USER SOF TWA RE LICENSE AGREEMEN T 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 U[...]

116 A PPENDIX F: E ND U SER S OFTWARE L ICENSE A GREEMENT 3Com and its suppliers. You agree to hold such trade secrets in confidence. You further acknowl edge and agree that ownership of , and title to, the Software and Documentation and all subsequent copies thereof reg ardless of the form or media are held by 3Com and its suppliers . UNITED STATE[...]

G LOSSARY 10BASE-T The IEEE specificatio n for 10 Mbps Ethernet over Category 3, 4 or 5 twisted pair cable. 100BASE-TX The IEEE specificatio n for 100 Mbps Fast Ether net over Category 5 twisted-pair cable. Access Point An Access Point is a device thr ou gh which wireless clients connect to other wireless clients and which acts as a bridge between [...]

118 G LOSSARY Category 5 Cables One of five grades of T wisted Pair ( T P) cabling defined by the EIA/TIA-586 standard. Category 5 can be used in Ethernet (10BASE-T) and Fast Ether net networks (100BASE-TX) an d can transmit data up to speeds of 100 Mbps. Category 5 cabling is better to use for network cabling than Category 3, because it supports b[...]

G LOSSARY 119 Ethern et A LAN specification developed join tly by Xerox, Intel and Dig ital Equipment Corporation. Ether net networks use CSMA/CD to transmit packets at a rate of 10 Mbps over a variety of cables. Ethernet Address See M AC address. Fast Ethern et An Eth ernet system th at is designed to operate at 100 Mbp s. Fir ewall Electr onic pr[...]

120 G LOSSARY consists of 32 bits divided into tw o or three fields: a netw ork number and a host number or a network numbe r , a subnet number , and a host number . IP Address Internet Protocol Address. A unique id entifier for a device attached to a network using TCP/IP . The address is written as four octets separated with periods (full-stops), [...]

G LOSSARY 121 Network Interface Card (NIC) A cir cuit board installed into a pi ece of computing equipment, for example, a computer , that enables you to connect it to the network . A NIC is also known as an adapter or adapt er card. Protocol A set of rules f or communication between devices on a network. The rules dictate format, timing, sequencin[...]

122 G LOSSARY Subnet mask A subnet mask, which may be a part of the TCP/IP information pr ovided by your ISP , is a set of four numbers configured like an IP address. It is used to cr eate IP addr ess numbers used only wit hin a partic ular network (as opposed to valid IP address num bers recognized by the Internet, which must assigned by InterNIC)[...]

G LOSSARY 123 WA N W ide Area Network. A network that connects comp uters located in geographically separate areas (for exam ple, differ ent buildings, citi es, or countries). The Internet is an example of a wide area network. WEP Wi red Equivalent Privacy . A shared key encryption mechanism for wireless networking. Encrypti on strength is 40/64 bi[...]

124 G LOSSARY[...]

I NDEX 125 I NDEX A access control 57 Addresses IP 99 admin password resetting 76 administration remote 81 Advanced RIP 83 routing table 85 Automatic Addressing 101 B backup se ttings 74 C Cable Specifications 106 client IP filters 57 access control 57 schedule rule 60 URL filter 59 Connection Policy 5 3 Conventions notice icons, About Thi s Guide [...]

126 I NDEX P ping blocking 81 plug and pl ay 80 PPPoE 24, 31, 42 PPTP 43 R remote adm i nistration 81 Reset to Factory Defaults 93 reset to factory defaults 73 restart router 73 restor e settings 74 RIP 83 routing 82 RIP 83 routing table 85 static r oute 82 routing table 85 S Safety Information 17 schedul e rule 60 Setup W izard 25 SNMP 71 special [...]

R EGULATORY N OTICES FCC S TATEMENT This equipment has been tested and found to comply wit h the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules, and the Canadian Departme n t of Communications Equi pment Standards entitled, “Digital Apparatus,” ICES-003. These limits are design ed to provide reasonable p rotection aga[...]

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3Com Corporation, Corporate Headquarters, 350 Campus Drive, Marlborough, MA USA 01752-3064 T o learn 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 © 2004 3Com Corporation. All rights reserved. 3Com and are register ed trademarks o f 3Com Corp[...]