3Com Wireless 11n manual

http://www.3Com.com/ Part No. 10016794 Rev AA Published July 200 8 Wir eless 11n ADSL Fir ewall Router User Guide WL-603 3CRWDR300 A-73 3CRWDR30 0B-73[...]

3Com Corporati on 350 Campus Drive, Marlborough, M A USA 01752-3064 Copyright © 2004, 2005, 2006 , 2007, 2008, 3Com Corporation . All rights rese rved. No part of this documentation may be r e produ ced in a ny form or by any means or used to make any deri vative work (such as translation, transformation, or adaptation ) wi t hout written permissi[...]

C ONTENTS A BOUT T HIS G UIDE Naming Convention 7 Conventions 8 Feedback About This User Guide 9 Related Documentat ion 9 I NTR ODUCING THE R OUTER W ire less 11n ADSL Fir ewall Router 11 Router Advantag es 14 Package Contents 14 Minimum System and Co mponen t Requirements 15 Physical Featur es 15 I NSTALLING THE R OUTER Introduction 21 Safety Info[...]

Windows Vista 29 Windows XP 30 Macintosh 30 Disabling PPPoE and PPTP Client S oftware 31 Disabling Web Pr oxy 31 R UNNING THE S ETUP W IZARD Accessing the Router using the 3Com Detect Applicat ion 33 Running the 3Com Detect Application 33 Accessing the Setup W izard 35 Wizard - Chan ge Passwor d 38 W izard - Time and Time Zone 39 W izard - Connecti[...]

DNS 88 Clone MAC addr ess 89 Firewall 90 SPI 90 Special Applications 94 Virtual Servers 95 DMZ 96 PC Privileges 97 Schedule Rule 99 URL Filter 100 Advanced 101 Security 101 VLAN 104 Static Routes 106 RIP 108 DDNS 110 SNMP 111 Syslog 112 Proxy ARP 113 QoS Settings 114 Tr a f f i c M a p p i n g 1 1 5 VPN 117 System T ools 124 Restart Router 124 Conf[...]

Support/Feedback 134 Support 134 Feedback 134 T ROUBLESHOOTING Basic Connection Checks 135 Browsing to the Router Configu ration Screens 1 36 Connecting to the Intern et 136 Forgotten P assword and Reset to Fact ory Defaults 138 W ireless Networking 139 Recovering from Corrupted Soft ware 140 Power Adapter 141 Fr equently Asked Questi ons 143 IP A [...]

S AFETY I NFORMATION E ND U SER S OFTWARE L ICENSE A GREEMENT O BTAINING S UPPORT FOR Y OUR 3C OM P RODUCTS Register Y ou r Product to Gain Service Benefits 160 Solve Problems Online 160 Purchase Extended W arranty and Professional Services 160 Access Software Downloads 161 Contact Us 161 T elephone T echnical S uppor t and Repair 161 G LOSSARY R E[...]

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A BOUT T HIS G UIDE This guide describes how to install and configure the 3Com W ireless 11n ADSL Firewall Router (3CRWDR300 A-73, 3CRWDR300B-73). This guide is intended for use by th ose responsible for installing and setting up network equipment; con sequently , it assumes a basic working knowledge of LANs (Local Ar ea Networks) and In ter net Ro[...]

8 A BOUT T HIS G UIDE Conventions T able 1 and T a ble 2 list conventions that are used thr oughout this guide. Ta b l e 1 Notice Ic ons Icon Notice Type Description Information note Information that describes important features or instructions. Caution Information that alerts you to potential loss of data or potential damage to an application, sy [...]

Feedback About This Us er Guide 9 Feedback About This User Guide Y our suggestions ar e ve ry important to us. Th ey will help make our documentation more useful to you. Please e-mail comments about t his document to 3Com at: pddtechpubs_comments@3com.com Please include the following information when commenting: ■ Document ti tle ■ Document par[...]

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 o f communicat ion but, until r ecently , only lar ge businesses could affo rd t he networking advantage. Wire less 11n ADSL[...]

12 C HAPTER 1: I NTRODUCING THE R OUT ER Figure 1 Example Network Without a Router When you use the Router in your netwo rk ( Figure 2 and Figure 3 ), it becomes your connect ion to the In ter net. 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. F[...]

Wireless 11n ADSL Firewall Router 13 Figure 3 Example Network Using a Fir ewall Route r (without splitter)[...]

14 C HAPTER 1: I NTRODUCING THE R OUT ER Router Advantages The advanta ges of the Route r include: ■ Shared Internet connection for both wir ed and wireless computers ■ High speed 802.11n wireless networking ■ No need for a dedicated, “alway s on” computer serving as your Internet connection ■ Cross-platform operation for comp atibility[...]

Minimum System and Component Requirements 15 Minimum System and Component Require ments Y our Router requir es th at the computer(s) an d components in your network be configured with the following: ■ A computer with an operating system that supports TCP/IP networking protocols (for example W indows 2000/XP ,/Vista, Unix, Mac OS 8.5 or higher). ?[...]

16 C HAPTER 1: I NTRODUCING THE R OUT ER 1 Power LED (Illuminated Logo) White The 3Com logo serves as power OK i ndicator . This LED will light if the ro uter is r eceiving power fr om the powe r adapter . If it is not lit check the power adapter connection s. Refer to Chapter 6 T roubleshooting . 2 Alert LED Amber Fast flash during self test. If s[...]

Physical Features 17 7 WPS LED Blue WiFi Protected Setup (WPS) is a standard for easy and secure establishment of a wir eless network, allowing wireless clients to connect securely to r outers and access point s. The WPS LED shows the statu s of the WPS function. It has a number of modes to help monitor the status of clients connecting to the Route[...]

18 C HAPTER 1: I NTRODUCING THE R OUT ER The rear panel ( Figur e 5 ) of the Router contains one ADSL port, f our LAN ports, one W iFi on/off button, a rese t button, one power adapter socket, and one WPS button. Figure 5 Router - Rear Panel 1 Wir eless An tennae The antennaes should be placed in a ‘V’ position when initially installed. CAUTION[...]

Physical Features 19 4 WiFi On/Off button Use this button to tur n on/tur n off the wireless function. Pr ess the button for 3 seconds. 5 Reset Button If you want to reset your Router to factory default settings, or cannot access the web manage ment interf ace (for examp le, due to a lost password), then you may use this button. Refer to Forgotten [...]

20 C HAPTER 1: I NTRODUCING THE R OUT ER[...]

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 t he following: WAR N IN G : Please read the [...]

22 C HAPTER 2: I NSTALLING THE R OUTER When positioning your Router , ensur e : ■ It is out of direct sunlight and away from sour ces of heat . ■ Cabling is away from power lines, fluor e scent lighting fixtures, and sources of electrical noise such as radios, transmitters and broadband amplifiers. ■ W ater or moisture cannot enter the case o[...]

Powering Up the Router 23 Mounting Instructions for Wood W alls T o wall mount the un it: 1 Make two holes 98 mm (3 .9 in.) apart. 2 Fix two suitable screws dir ectly in to the wall, leaving their heads 3 mm (0.12 in.) clear of the wall surface . The screws should be at least 20 mm (0.75 in.) long. 3 Remove any co nnections in the Router an d locat[...]

24 C HAPTER 2: I NSTALLING THE R OUTER Figure 6 Connecting the Router (with splitter) Figure 7 Connecting the Router (without splitter) 1 Run the provided telephone cable fr om the wall jack pr oviding ADSL service to the ADSL port on your Router . When inserting an ADSL RJ-11(Annex A) or RJ-45 (Annex B) plug, be sure the tab on the plug clicks int[...]

Connecting the Router 25 2 Then: ■ If you are using a full-rate (G.dmt) connection, your service provider will attach the outside ADSL line to a data/voice splitter . In this case you can connect your phones and comput er dir ectly to the splitter as shown below ( Figure 8 ): or ■ If you are using a splitterless (G.lite) connectio n, then your [...]

26 C HAPTER 2: I NSTALLING THE R OUTER Figure 9 Installing without a splitter Y ou have now completed the har d ware 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 R outer configuration from a computer that is[...]

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 t he configuration of your computers to a llow this, follow the instructions in this chapter . Obtaining a[...]

28 C HAPTER 3: S ETTING U P Y OUR C OMPUTER S Figure 10 Local Ar ea Properties Screen 6 Ensure that the opt ions Obtain an IP addr ess automatically , and Obtain DNS server address automatically are both selected as shown in Figur e 11 . Click OK . Figure 11 Internet Protocol (TCP/IP) Properties Scr een 7 Restart your computer .[...]

Obtaining an IP Address Automaticall y 29 Windows Vista 1 From the Win dows Start Menu, se lect Settings > Network . 2 Click on Organize . Select Properties . 3 Click on Manage network > Connections . 4 Double click Local Area Connection . Select Proper ties and click continue . 5 A scr een similar to Figur e 12 should appear . Select Inter n[...]

30 C HAPTER 3: S ETTING U P Y OUR C OMPUTER S Windows XP 1 From the Win dows Start Menu, select Control Panel . 2 Click on Network and Internet Connections . 3 Click on the Network Connectio ns 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 [...]

Disabling PPPoE and PPTP Client Software 31 Disabling PPPoE and PPTP Client Software If you have PPPoE client software installed on your computer , yo u will need to disable it. T o do this: 1 From the Win dows Start Menu, select Settings > Control Panel . 2 Double click on Internet Options. 3 Select the Connections T ab. A scr een similar to Fi[...]

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

4 R UNNING THE S ETUP W IZAR D Accessing the Router using the 3Com Detect Application The 3Com Detect application works by automatically locating your Router , establishing wh at IP add re ss it is us ing and then launching your default web browser to connect directly to it. The application will only locate your Ro uter if it is on the same subnet [...]

34 C HAPTER 4: R UNNING THE S ETUP W IZARD Figure 15 3Com Detect Application If the computer has multiple networ k adapters, select the ad apter that connects the computer to the network or the Router , click Next . Y ou will then be offer ed the choice of searching the same subnet that your PC is on for a connected Router (d efault), or specifying[...]

Accessing the Setup Wizard 35 Figure 18 Router List Scr een Accessing the Setup Wizard The Router setup program is Web-based, which means that it is accessed through your W eb br owser (Netscape Navigator 4.7 or higher , Inter net Explorer 6.0 or higher , or Mozilla 1.2.1 or higher , or Apple’ s Safari). T o use the Setup Wizard: 1 Ensure that yo[...]

36 C HAPTER 4: R UNNING THE S ETUP W IZARD 4 T o log in as an administr ator , enter the pa sswor d (the def ault pa ssword is admin ) in the System Password field and click Lo g in (see Figure 20 ). Figure 20 Router Login Scr ee n 5 When you have logged in, ■ if you are logging in for the first ti me, the C ountry Sele ction scr een will appear [...]

Accessing the Setup Wizard 37 The W izard will then launch automatically (refer to Figure 24 ). Y ou will be guided step by step through a basic setup procedur e. ■ if the Router has been configured previously , the We lc o m e screen will appear ( Figure 22 ). Ther e are thr ee ta bs: Notice Board, Passwor d and Wiz ar d . Figure 22 W elc ome Sc[...]

38 C HAPTER 4: R UNNING THE S ETUP W IZARD Figure 23 Passwor d Screen 1 T o change the cu rrent passwor d, enter the password in the Current Password field. 2 Enter the new password in the New Password field, and enter it again in the Confirm New Password field. 3 Enter the time period in Login Timeout to set a maximum period of time for which the [...]

Accessing the Setup Wizard 39 Wizard - Time and Time Zone The Time and Time Zone scr een allows you to set up the time for the Router . Figure 25 Time and T ime Zone Screen 1 Select the correct base date and time. 2 If you want to automatically synchronize the Router with a public time server , check the Enable box in the Using Time Se rver (NTP) f[...]

40 C HAPTER 4: R UNNING THE S ETUP W IZARD Wizard - Con nection Ty p e The Connection T y pe scre en allows you to set up the Router for the type of Intern et connection you have. Before setting up your connection type, have your account information from your ISP r eady . Figure 26 Connection T ype Screen Select a mode from the fo llowing options, [...]

Accessing the Setup Wizard 41 PPPoE PPPoE is often used for DSL connection . T o set up the Router for u se with a PPPoE (PPP over Ethe rnet) connection , use the following procedure: Figure 27 PPPoE Scr een 1 Enter your use r name in the Username field. 2 Enter your passwor d in the Password field. 3 Re-type your passwor d in the Retype Password f[...]

42 C HAPTER 4: R UNNING THE S ETUP W IZARD PPPoA T o set up the Router for use with a PPP over A T M (PPPoA ) connection, use the following procedur e: Figure 28 PPPoA Scr een 1 Enter your use r name in the Username field. 2 Enter your pa sswor d in the Password field. 3 Re-type your passwor d in the Retype Password field. 4 Enter your VPI and VCI [...]

Accessing the Setup Wizard 43 Bridge Mode (for a single PC) Selecting the Bridge mode sets the device into 1483 bridging mode in which the device connects LANs and W AN together . It operates as a Data Link Layer device that acts to limit the traffic between two network segments by filtering the data between them based on the har d ware address. T [...]

44 C HAPTER 4: R UNNING THE S ETUP W IZARD Routing Mode over A TM The Routing Mode over A T M uses fixe d/static IP addresses, which ar e provided by your ISP , to conn ect to the Inter net. Obtain the information on this screen fr om your ISP . Figure 30 Routing mode over A TM Screen 1 Enter your Internet IP address in the WAN IP field. 2 Enter th[...]

Accessing the Setup Wizard 45 Dynamic/Fixed IP in 1483 Bridge Mode (For Multiple PCs) For bridge mode to work, you need to assign an IP address to the Router . Y ou can either configure the Router to obtain an IP addr ess automatically from a DHCP server or assign a fi xed or static IP address to it. Figure 31 Dynamic/Fixed IP for Bridge Mode Scr e[...]

46 C HAPTER 4: R UNNING THE S ETUP W IZARD Wizard - LAN Settings Th e LAN Settings screen allows you to set the default IP addr ess and DHCP client IP range for the Router . Figure 32 The LAN Settings Scr een 1 T o change t he Router’ s default IP addr ess, enter the new IP address in the IP Address field, and then enter the subnet mask in the Su[...]

Accessing the Setup Wizard 47 Wizard - Wir e less Setting The W ireless Settings screen allows you to set up the SSID and radio channel used for the wireless connection. Figure 33 Wireless Setting Scr een 1 Select the channel you want to u se from the Channel drop-down menu. 2 Specify the SSID to be used by your wireless network in the SSID field. [...]

48 C HAPTER 4: R UNNING THE S ETUP W IZARD Figure 34 Security Mode Scr een 64-bit WEP WEP is th e basic mechanism to transmit you r data securely over the wireless network. Matching encrypti on keys must be set up on your Router and wireless client devices to use WEP . Figure 35 64-bit WEP Scr een T o enable 64-bit WEP: 1 Y ou can enter the 64-bit [...]

Accessing the Setup Wizard 49 2 Click Next . Note that all four WEP keys on each device o f the same wireless network must be identical. 128-bit WEP WEP is the ba sic mechanism to tran smit your data securely over the wireless network. Matching encryption keys must be set up on your Router and wireless client devices to use WEP . Figure 36 128-bit [...]

50 C HAPTER 4: R UNNING THE S ETUP W IZARD WP A-PSK (no server) WP A (W i-Fi Protected Acc ess) pr ovides dynamic key changes and constitutes the best secur ity solution. If your n etwork does not have a RADIUS server . Select the no server o ption. Note that in home and very small office deployments, PSK is typically used. Figure 37 WP A-PSK no se[...]

Accessing the Setup Wizard 51 WP A with Radius Server WP A (W i-Fi Protected Acc ess) pr ovides dynamic key changes and constitut es the best security so lution. Th is functi on r equir es that a RADIUS server is running on the network. Figure 38 WP A with Radius Server Screen 1 Select WP A with RADIUS server from the Se curity Mode drop-down menu.[...]

52 C HAPTER 4: R UNNING THE S ETUP W IZARD Wizard - Configuration Summary When you have completed the Setup W izard, a configuration summary will appear . V erify the configuration information of the Router and then click Apply to save your settings. 3Com recommends that you print out this page for your recor ds. Figure 39 Configuration Summary Scr[...]

5 C ONFIGURING THE R OUTER Navigating through the Router Configuration Screens This chapter describes all the scr eens available thr ough the Router configuration screens, and is provided as a r eference. T o get to the configuration screens, enter the Router ’ s default IP in the location bar of your browser . The default IP is http://192.168.1.[...]

54 C HAPTER 5: C ONFIGURING THE R OUTER 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 with most applications. If you need to make changes to the settings, you can do so. The LAN settings screen allows[...]

LAN Settings 55 1 Enter th e Router ’ s IP Address and Subnet Mask in the appropriate fields. The default IP addr ess is 192.168.1.1. 2 If you want to use t he Rou ter as a DHCP Server , check Enable in the DHCP Ser ver field. 3 Enter the IP address range in the IP Pool St art Address and IP Pool End Address fields. 4 Specify the DHCP Lease time [...]

56 C HAPTER 5: C ONFIGURING THE R OUTER ■ Host Name — The client machine’ s ho st name, if config ured. ■ MAC Address — The Media Access Contr o l (MAC) a ddress of the client’ s network card. ■ Client T y pe — Whether the client is connected to the Router by wired or wireless connection. ■ Check the Fix checkb ox to permanently f[...]

Wireless Settings 57 Wire less Settings The W ireless Setting s screens allow yo u to configure the settings for the wireless connections. Y ou can enable or disable the wireless connection for your LAN. When disabled, no wireless PCs can gain acce ss to either the Inter net or other PCs on your wired or wir eless LAN through this Router . Figure 4[...]

58 C HAPTER 5: C ONFIGURING THE R OUTER Configuration The W ireless Configuration Screen allows you to tur n on/ tur n off the wireless function, and set up basic wir eless setting s. Y ou can also enable/disable the W ireless function using the W iFi on/off button at the back of the Router . Figure 44 Wireless Configuration Scr een T o enable the [...]

Wireless Settings 59 6 Select whether your Router will ope rate in 11b mode only , 11g mode only , 11n mode only , or mixed mode from the Wireless Mode drop-down menu. If your network contains 11b, 11g, and 11n clients, select the mixed mode. If your net work contains ju st one type of cl ients only , select 11b only , or 11g only , or 11n only , d[...]

60 C HAPTER 5: C ONFIGURING THE R OUTER Encryption This feature pr events any non-authorized par ty fr om r eading or changing your data over the wir e less network. Figure 45 Encryption Scr een Select the wireless security mode that you want to use fr om the drop-down menu, and click Apply . There are five selections: ■ Disabled ■ 64-bit WEP ([...]

Wireless Settings 61 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 set up on your Router and wireless client devices to use WEP . Note that 3Com recommends using WP A/WP A2 to se cu re yo u r w ire l e ss c on n e ct i o n . Figure 46 64-bit WEP Scr een T o setup [...]

62 C HAPTER 5: C ONFIGURING THE R OUTER 128-bit WEP WEP is th e basic mechanism to transmit you r data securely over the wireless network. Matching encryption keys must be set up on your Router and wireless client devices to use WEP . Note that 3Com recommends using WP A/WP A2 to se cu re yo u r w ire l e ss c on n e ct i o n . Figure 47 128-bit WE[...]

Wireless Settings 63 WP A-PSK (no server) WP A (W i-Fi Protected Acc ess) pr ovides dynamic key changes and constitutes the best secur ity solution. If your n etwork does not have a RADIUS server . Select the no server option. For home network or very small business networking environment, PSK is typically used. Figure 48 WP A-PSK (no server) Scree[...]

64 C HAPTER 5: C ONFIGURING THE R OUTER WP A (with RADIUS Serve r) WP A (W i-Fi Protected Acc ess) pr ovides dynamic key changes and constitut es the best security so lution. Th is functi on r equir es that a RADIUS server is running on the network. Figure 49 WP A (with RADIUS Server) Screen 1 Select WP A with RADIUS server from the Security Mode d[...]

Wireless Settings 65 WPS W i-Fi Protected Setup (WPS) integrates the new WLAN clients into your wireless network easily . Y ou can enable this function by entering the PIN code via the web UI page or by pr e ssing the WPS button on the rear side of the device. Figure 50 WPS Scr ee n T wo methods to setup the WPS, yo u can cho ose either one of the [...]

66 C HAPTER 5: C ONFIGURING THE R OUTER ■ WPS-PBC 1 Press the WPS button located on the rear of the Router . Note that this setup process will only be active for 2 minutes. Follow the instruction of your WLAN NIC to set up the WPS. The WPS LED shows the status of th e WPS function. It has a number of modes to help monitor the status of clients co[...]

Wireless Settings 67 Connection Contr ol This feature is used to filter the clients based on th eir MAC addresses. Using this function, you can limit the access right of the wir eless clients to this Router . Check the En able MAC Address Filt ering checkbox, the Connection Control scr een will appear . Figure 51 Connection Contr ol Screen There ar[...]

68 C HAPTER 5: C ONFIGURING THE R OUTER Client List Y ou can view the list of all wir eless clients th at are connected to the Router . Figure 52 Client List Scr een Click Refresh to update the list. WMM W ireless Multimedia (WMM) mode, which supports devices that meet the 802.11E QBSS standard. WMM uses traffic priority based on the four ACs; V oi[...]

Wireless Settings 69 Access Categories – WMM defines f our access categories (ACs): voice, video, best effort, and background. These categories correspond to traffic priority levels and are mapped to IEEE 802.1D priority tags. The direct mapping of the four ACs to 802.1D priorities is specifically intended to facilitate inter operability with oth[...]

70 C HAPTER 5: C ONFIGURING THE R OUTER CWMin (Minimum Contention W indow) – Th e initial upper limit of the random backoff wait time before wir eless medium access can be attempted. The initial wait time is a random value between zer o and the CWMin value. Specify the CWMin value in the range 0-15 microseconds. Note that the CWMin value must be [...]

Wireless Settings 71 WDS The Router supports WDS (W ir eless Distribution System). WDS enables one or more Access Points to rebr oadcast received signals to extend range and r each, though this can affect the overall throughput of data. Note that WDS implementation can va ry from product to pr oduct. Hence there is no guarantee that diff erent pr o[...]

72 C HAPTER 5: C ONFIGURING THE R OUTER Figure 55 Add WDS scr een On the add WDS screen, enter the MAC address of the access point, up to 4 APs can be added to the AP MAC Address table, and click Apply . Here is an example of how to setup two units of 3Com Router over WDS. Note that when setting up two units of 3Com Router , you should disable the [...]

Wireless Settings 73 Figure 56 First Router Add WDS Scr een Access the Web UI of the second Router , repeat the above steps to add the first Router to the WDS table (see Figure 57 ). Figure 57 Second Router Add WDS Scr een[...]

74 C HAPTER 5: C ONFIGURING THE R OUTER Advanced The Advanced screen allows you to configure detailed settings for your wire less connection. Please note that y ou should not chan ge this settings unless you are an expert user . Ther e are six parameters that you can configure: Figure 58 Wireless Advanced Setting Scr een ■ Beacon Interval: this r[...]

Wireless Settings 75 ■ AP Isolation Mode: AP Isolation is a fu nction to prevent wir eless clients connected with the device f rom communicating with one another . When enabled, this creates a se parate virtual network for yo ur wire less networ k, each of your wir ele ss client will be in its own virtual network and will not be able to communica[...]

76 C HAPTER 5: C ONFIGURING THE R OUTER Internet Settings Y ou can configure the settings for your W AN port connection. AT M P V C This feature is used to configur e the parameters for your Inter net connection. The information necessary to complete these screens should be obtained from your ISP . Check with your ISP first to find out what type of[...]

Internet Settings 77 Disable Selecting this option means that you do not want your Router to connect to the Internet. Figure 60 Disable Internet Connection Screen PPPoE PPP over Ethernet, provides r outing for multiple PCs, this mode is often used for the DSL connection. T o conf igure this function correctly , yo u should obtain the information fr[...]

78 C HAPTER 5: C ONFIGURING THE R OUTER 1 Select PPPo E fr om the prot ocol dr op-down menu. 2 Enter the IP address and Subnet mask information. 3 Enter the user name assigned to you by your ISP in the Username field. And enter the password assigned to you by your ISP in the Password field. Re-enter your password in the Confirm Password field. 4 Se[...]

Internet Settings 79 12 QoS Class: select CBR, UBR or VBR . ■ CBR (constant bit rate): the CBR service class is intended for real-time applications, for example, those r equiring tightly constrained delay and delay variation, such as voice and video applications. The consistent availability of a fixed quantity of bandwidth is considered appr opri[...]

80 C HAPTER 5: C ONFIGURING THE R OUTER PPPoA PPP over A TM, this is a popular choi ce among Eur opean DSL pr oviders. T o configure this function correctly , you should obtain the information from your ISP . Figure 62 PPPoA Settings Scr een 1 Select PPPo A fr om the protocol drop-down menu. 2 IP assigned by ISP , if select Y es, then no need to en[...]

Internet Settings 81 7 IPCP is used by PPP protocol to ge t one IP address fr om the PPP server . IPCP subnet function allows you to obtain a subn et (IP address and netmask), rather than an IP address. Check this box to enable the function. 8 IPCP Subnet Populate DHCP Server: enable this functio n to allow the Router to automatically apply the sub[...]

82 C HAPTER 5: C ONFIGURING THE R OUTER Bridge Mode If your ISP limits access to the Internet to specific computers, this means that traffic to/from these computers onl y will be forwar ded. In this case, Bridge Mode is used to connect to the ISP . The ISP will generally give one Internet account and limit only on e computer to access the Inter net[...]

Internet Settings 83 ■ VBR (variable bit rate): QoS class defined by the A TM Forum for A TM networks. VBR is subdivided in to 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 no fixed timing rel[...]

84 C HAPTER 5: C ONFIGURING THE R OUTER Routing Mode over A TM RFC1483/2684 routed encapsulation in routing mode, it carries IP datagrams directly over A TM. DHCP c lient function can also be enabled to obtain an IP address dynamically . Figure 64 Routing Mode over A TM Screen 1 Select Routing mode over A TM from th e protocol drop-down menu. 2 Ent[...]

Internet Settings 85 9 QoS Class: select CBR , UBR or VBR . ■ CBR (constant bit rate): the CBR service class is intended for real-time applications, for example, those r equiring tightly constrained delay and delay variation, such as voice and video applications. The consistent availability of a fixed quantity of bandwidth is considered appr opri[...]

86 C HAPTER 5: C ONFIGURING THE R OUTER Dynamic/Fixed IP in 1483 Bridge Mode Dynamic/Fixed IP in 1483 Bridge Mode u ses the same encapsul ation as 1483 Bridging but with bridging f uncti on disabled. DHCP client function can also be enabled to obtai n an IP address dynamically . Figure 65 Dynamic/Fixed IP in 1483 Bridge Mod e Screen 1 Select Dynami[...]

Internet Settings 87 6 If your ISP uses DHCP to automati cally assign IP addresses, check the DHCP Client checkbox. 7 Check the Add Default Rou te checkbox to set this PVC as the default route, this is used when you config ure mor e than one PVC for the Route r . 8 Enter the VPI/VCI valu es. Or you can click Auto Search to automatically find out th[...]

88 C HAPTER 5: C ONFIGURING THE R OUTER DNS Domain Name Service ( or Server) is an Internet service th at translates domain names into IP addresses. Be cause domain names are alphabetic, they'r e easier to r emember . The Intern et however , is r eally based on IP addresses. Every time you use a domain name, a DNS service must translate the na[...]

Internet Settings 89 Clone MAC addr ess T o configure the hostname and Clone MAC Address information for your Router , select Internet Settings , then go to the Clone MAC addre ss tab. The Hostname and MAC Address scre en displays. Figure 67 Hostname and Clone MAC Addr ess Screen 1 Some ISPs require a host name. If your ISP has this r equirement, e[...]

90 C HAPTER 5: C ONFIGURING THE R OUTER Fire wall This section is for configu ration sett ings of the Router’ s fir ew all function. Y our Router is equipped with a firewall that will protect yo ur network from a wide array of common hacker attacks including Ping of Death (PoD) and Denial of Service (DoS) a ttacks. Y ou can turn the firewall func[...]

Firewall 91 T o enable the firewall function: 1 Select the level of protection (High, Me dium, or Lo w) that you desire from the Firewall level drop-down menu. 2 Click Apply . ■ For low and medium levels of fir ewall protection, refer to Figur e 69 . For low level of firewall pr otection, the DoS and SPI functions are both off. For medium level o[...]

92 C HAPTER 5: C ONFIGURING THE R OUTER Figure 70 High Level Fir ewall Protection Scr een If you select high level of protec tion, you would have an option to configure additional parameters for the firewall. ■ Fragmentation half-open wait - Configures the number of seconds that a packet state structu re r emains active. When the timeout value ex[...]

Firewall 93 ■ T otal incomplete TCP/UD P sessions HIGH - Defines the rate of new unestablished sessions that will cause the software to start deleting half-open sessions. ■ T otal incomplete TCP/ UDP sessions LOW - Defines the rate of new unestablished sessions that will caus e the software to stop deleting half-open sessions. ■ Incomplete TC[...]

94 C HAPTER 5: C ONFIGURING THE R OUTER Special Applications Sp ecial Applications (port triggering) let you choose specific ports to be open for specific applications to wo rk properly with the Network Address T ranslation (NA T) fe ature of the Router . Figure 71 Special Applications Scr een A list of popular applications has been included to cho[...]

Firewall 95 Virtual Servers Th e Virtual servers feature allows you to route external (Inter net) calls for services such as a web serv er (port 80), FTP se rver (Port 21), or other applications through your Router to your inter nal network. Since your internal computers are protec ted by a fire wall, machines from the Internet cannot get to them b[...]

96 C HAPTER 5: C ONFIGURING THE R OUTER 3 Specify the public port that will be seen by clients on the Internet, and th e LAN port which the traffic will be r outed to. 4 Y ou can enable or disable each Vi rtual Server entry by checking or unchecking the appropriate Enabled checkbox. 5 Click Apply to save the changes for each Vi rtual Server entry .[...]

Firewall 97 address is not known, or if more than one PC on t he Internet w ill need to access the DMZ PC, then set the Public IP Address to 0.0.0.0 . In the default setting, (line 1) refer to Figur e 73 , Public IP address is set to 0.0.0.0 and it is automatically tran sformed by default W AN IP . We only allow one DMZ serve r to be accessed b y p[...]

98 C HAPTER 5: C ONFIGURING THE R OUTER T o edit or delete specific existing filtering rules, click on Edit or Delete for the appropriate fi ltering rule. Figure 75 PC Privileges Add PC Scr een 1 Enter a descri ption in the Client PC Descri ption field, and the IP address or IP address range into the Client PC IP Address fields. 2 T o bypass th e U[...]

Firewall 99 Schedule Rule The Router can be configured to restrict access t o the Inter net, email or other network services at specific days and t imes. Define the time in this scre en, and define the ru les in the PC Privileges screen ( see page 97 ). Figure 76 Schedule Rule Scr e en 1 Click Add Rule to add a schedule rule (refer to Figur e 77 ).[...]

100 C HAPTER 5: C ONFIGURING THE R OUTER URL Filter T o configur e the URL filter feature, use the table on the URL Filter scr een to specify the Web sites (www .somesit e.com) and/or keywords you want to filter on your network. For example, entering a k eywor d of xxx would block/allow access to any URL that contains the string xxx . Figure 78 URL[...]

Advanced 101 Advanced The Advanced section allows you to set ad ditional parameter details for the Router . Y o u can configure: ■ Security ■ VLAN ■ Static Routes ■ RIP ■ DDNS ■ SNMP ■ Syslog ■ Proxy Arp ■ QoS Settings Security Use the Security scre en to set the advanced security settings for the Router . Figure 79 Security Scr e[...]

102 C HAPTER 5: C ONFIGURING THE R OUTER ■ NA T — (Network Address T ranslation), NA T is the method by which the Router shares the single IP address assigned by your ISP with the computers on your network. This function should only be disabled by advanced users, and if your ISP assigns you multiple IP addresse s or you need NA T disabled for a[...]

Advanced 103 ■ MSS Clamping — Y ou might not be ab le to browse some Web sites or to send email messages that contain attachments from an Internet Connection Sharing client comp uter if your outbound connection is through a Wi ndows XP-based Inter net Connection Sharing host computer that uses Point-to- Point Protocol over Ethernet (PPPoE). Thi[...]

104 C HAPTER 5: C ONFIGURING THE R OUTER VLAN A VLAN is a flexible gr o up of device s that can be loca ted anywhere in a network, but they communicate as if they are on the same physical segment. W ith VLANs, you can se gment your network without being restricted by physical connections - a drawback of traditional network design. As an example, wi[...]

Advanced 105 Figure 80 VLAN Scr een Click Add VLAN to create a new entry (see Figur e 81 ). Figure 81 VLAN Pr ofile Screen ■ Enter a descriptio n for your VLAN in the Description field. ■ Enter the IP Address and subnet ma sk in the corresponding fields. ■ Select to set the NA T Do main as public or private. ■ IGMP Snooping: enabling it wil[...]

106 C HAPTER 5: C ONFIGURING THE R OUTER Static Routes Y ou can configure static r outes in this screen. Y ou can setup a static route that will get all traf fic with destinat ion to business network to go thro ugh VPN tunnel and the rest outside of the VPN tunnel. Figure 82 Static Routes Scr een T o add a static r oute entry to the table, clic k A[...]

Advanced 107 ■ Gateway — the Router used to route data to the network specified by the network address. ■ Interface — select the interface. Note that you should only configure either the Gateway information or select the Inter face. After you have finishe d making chang es to the table, click Apply . Here is an example of setting up a stati[...]

108 C HAPTER 5: C ONFIGURING THE R OUTER RIP RIP (Routing Information Protocol) - RI P allows the network admin istrator to set up routing information on one RIP-enabled device (this Router), and send that information to all RIP-enabled devices on the net work. Figure 85 RIP Parameter Scr een Y ou can set up RIP independently on both LAN and W AN i[...]

Advanced 109 5 Use the Poison Reverse drop-down menu to enable or disable Poison Reverse on the Router . Enabling Poison Reverse on your Router allows it to indicate to other RIP-enabled devices that they have both routes that point to each other , pr eventing data loops. 6 Use the Authentication Requ ired field to choose the mode of authentication[...]

110 C HAPTER 5: C ONFIGURING THE R OUTER DDNS The Router provides a list of dynamic DNS providers for you to choose from. Dynamic Domain Na me Server (DDNS) enables you to map a stat ic domain name to a dynamic IP address. This function allows yo u to create a hostname that p oints to your dynami c IP or static IP address or URL. Before you set up [...]

Advanced 111 SNMP SNMP (Simpl e Network Manage me nt Protocol) allows r emote management of your Router by a PC that has an SNMP management agent installed . Check the En able SNMP box, the table will appear . Figure 87 SNMP Scr een Enter th e System Contact , System Name , and System Location information. T o Configure SNMP Community: 1 In the Com[...]

112 C HAPTER 5: C ONFIGURING THE R OUTER Y ou can configure the Router to send statu s messages to the SNMP management agent if a problem occu rs on the network. T o configur e SNMP 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[...]

Advanced 113 Proxy ARP Pr oxy ARP is the technique in which one host, usually a Router , answers ARP requests intended for another machine. By “faking” its identity , the Router accepts responsibility for routing packets to the “real” or intended destination. This heightens the security for your network. Figure 89 Pr oxy ARP Screen 1 Check [...]

114 C HAPTER 5: C ONFIGURING THE R OUTER QoS Settings The QoS (Quality of Service) fu nction allows you to differ entiate your network traffic and pr ovide it with high-priority forwarding service. The bandwidth gap between LAN and W AN may significantly degrad e the performance of critical network applications, such as V oIP , gaming, and VPN. Thi[...]

Advanced 115 Tr a f f i c M a p p i n g Up to 16 ru les can be defined to classi fy your network traffic into Dif fserv forwarding gr oups and outgoing connections. Figure 91 T r affic Mapping Screen Click Add , the Edit T raffic Class scr een will appear . Figure 92 Edit T r affic Class Screen 1 Define the Rule name. 2 Select the traffic type from[...]

116 C HAPTER 5: C ONFIGURING THE R OUTER Figure 93 Detailed Edit T raf fic Class Screen Enter the information, th en click Apply to make the settings to take effect.[...]

VPN 117 VPN The Router has a V irtual Private Netwo rk (VPN) feature that provides a secure link between r emot e users and the corporate network by establishing an authenticated and encrypt ed tunnel for passing secure data over the Internet. The Rout er supports three modes of VPN operation: ■ IPSec (IP Security) — pr ovides IP network-layer [...]

118 C HAPTER 5: C ONFIGURING THE R OUTER Figure 94 VPN Scr een 1 Check the En able IPSec box, configur ation details screen appears. Figure 95 Enable IPSec Scr een 2 Enter th e Local ID Name of your VPN. (the default is 3ComVPN) 3 Click Add to create a new entry , see Figur e 96 .[...]

VPN 119 Figure 96 Add New VPN T unnel Configuration Scr een On the VPN T unnel Parameter scr e en, 1 Set the VPN T unnel T ype to IPSec . 2 Enter a descriptive n ame for the tu nnel in the Tu n n e l N a m e field. 3 Remote VPN Gateway - select IP address, and then ent er the IP address in the IP Address/Host Name field. If you select ANY , then it[...]

120 C HAPTER 5: C ONFIGURING THE R OUTER 5 Select the Local Party ID , and then enter the ID, Network Addr ess and Subnet Mask o f the Local Secure Gr ou p. The network address of the local secure gr ou p is usually the network address of the local network. 6 From the Key Management dr op -down menu, select either IKE M ain Mode or IKE Aggressive M[...]

VPN 121 Check the En able L2TP box, configuratio n details screen appears, see Figure 97 . Figure 97 Enable L2TP Scr een 1 Enter th e Pre-shared Key for L2TP Server over IPSec Setting. 2 Define the IP Addr ess Pool for L2TP clients, enter the start/end address. 3 Click Add to cr eate a new entry , see Fi gur e 98 . Figure 98 Add New VPN T unnel Par[...]

122 C HAPTER 5: C ONFIGURING THE R OUTER 1 Set the T unnel T ype to L2TP over IPSec . 2 Enter a descriptive n ame for the tu nnel in the Tu n n e l N a m e field. 3 Enter th e User name and Password . 4 Enter th e Idle Timeout value. 5 Set the L2TP T ype Setting to L2TP Server , or L2TP Client. ■ if you set the type as L2TP Client, then set the L[...]

VPN 123 Figure 100 Add new PPTP VPN T unnel Scr een 1 Set the T unnel T ype to PPTP . 2 Enter a descriptive n ame for the tu nnel in the Tu n n e l N a m e field. 3 Enter th e User name and Password . 4 Enter th e Idle Timeout value. 5 Set the PPTP T ype Setting to PPTP Server , or PPTP Client. ■ if you set the ty pe as PPTP Client , then set the[...]

124 C HAPTER 5: C ONFIGURING THE R OUTER System T ools These screens allow you to manage differ ent parameters of t he Router and perform certain administ rative functions. Restart Router Sometimes it may be necessary to r estart (or reboot) the Router . Restarting the Router from this scr e en will not delete any of your configuration settings. Cl[...]

System Tools 12 5 ■ Backup Configuration — Y ou can save your current configuration b y clicking the Backup button. Saving your conf iguration will allow you to restor e it later if your settings are lost or changed. It is r ecommended that you ba ckup your curr ent conf igurati on befor e performing a firmware update. ■ Restore Configuration[...]

126 C HAPTER 5: C ONFIGURING THE R OUTER Time Zone Y ou can set the time settings for the Router on this scr een. Figure 104 Time Z one Screen The Router keeps time by connecting to a Netwo rk T ime Pr otocol (NTP) server . This allows the Router to synchr onize the system clock to the Internet. The synchronized clock in the Router is used to recor[...]

System Tools 12 7 Ping The ping tool is used to test if the network is working properly . Figure 105 Ping Scr een 1 Enter the IP address or domain name in the IP Address or Domain Name field, and click Ping . 2 Select from the Number of times to Ping drop-down menu. 3 The Router keeps a log of the ping test, click Clear Log to delete the rec o rd s[...]

128 C HAPTER 5: C ONFIGURING THE R OUTER Tr a c e r o u t e T raceroute is the program that shows you the r oute over the network between two systems, listing all the intermediate routers a connec tion must pass thro ugh to get to its destination. It can help you determine why your connections to a given serv er might be poor , and can often help y[...]

System Tools 12 9 DNS Lookup DNS Lookup is the process of r esolving an IP address (i.e. 192.168.11.137) to a host name (i.e. xxxcompany .net). Figure 107 DNS Lookup Scr een 1 Enter the IP address or domain name in the IP Address or Domain Name field, and click DNS lookup. 2 The Router keeps a log of th e DNS lookup test, click Clear Log to delete [...]

130 C HAPTER 5: C ONFIGURING THE R OUTER Status and Logs Y ou can use the Status Scr een to view version numbers for your Router’ s software and hardwar e and check the status of connections to In ter net, LAN and WLAN interfaces. Status This screen shows Router status and statistics. ■ Release - use this button to release the current IP . ■ [...]

Status and Logs 131 ADSL Status This screen shows ADSL mode m status and statistics. Figure 110 ADSL Status Scr een A TM PVC Status This screen shows A TM PVC status an d statistics. ■ Click Disconnect to disconnect from your ISP . ■ Click Connect to make a connection with your ISP . Figure 111 A TM PVC Status Screen[...]

132 C HAPTER 5: C ONFIGURING THE R OUTER Routing T able This screen displays details for the default routing used by your Router and any routing created using Static Routing or RIP . Figure 112 Routing T able Screen Logs This screen shows any attempts that have been made to gain access to your network as well as the system activities. Figure 113 Lo[...]

Status and Logs 133 T raf fic Statistics This screen shows the traffic statistics. Use the Refre sh button to update the information. Note that the current implementation only shows traffic statistics per forwarding gr o up. Hence if QoS is not enabled, this scr een will always show zer o values. Figure 114 T r affic Statistics Scr een[...]

134 C HAPTER 5: C ONFIGURING THE R OUTER Support/Feedback Y ou can use the Support/Feedback sc r een to obtain support and help, and also provide feedback to 3Com. Support Figure 115 Support Scr een This screen shows support information. Feedback T o provide feedback to 3Com, please click Provide Feedback , and this will connect you to the 3Com Web[...]

6 T R OUBLESHOOTING Basic Connection Checks The Router has been designed to ai d you when detecting and solving possible problems with your network. These problems ar e rar ely serious; the cause is usually a disconnected or damaged cable, or incorr ect configuration. If this section does not so lve your problem, contact your supplier for informati[...]

136 C HAPTER 6: T ROUBLESHOO TING Browsing to the Router Configuration Screens If you have connected your Router and computers together but cannot browse to the Router configuration screens, check the following: ■ Confirm that the physical connection between your computer and the Router is OK, and that the LAN Status LEDs on the Router and networ[...]

Connecting to the Internet 137 ■ If the ADSL Sync LED is of f or flashes bu t does not go to a steady on state, please go through the following steps befor e contactin g 3Com support. 1 Y our ISP may have upgraded their DSLAM equipment: V erify your 3Com Router has the latest sof tware/firmwar e availa ble installed. Upgrades are found at http://[...]

138 C HAPTER 6: T ROUBLESHOO TING ■ Ensure that you have enter ed the correct information into the Router configuration screens as requir ed by your Inter net Service Pr ovider . Use the Inter net Settings screen to verify this. ■ V erify the connection type is th e type requir ed by your Service Provider ■ ADSL Data (4 on fig3) – LED on in[...]

Wireless Networking 139 Wire less Networking ■ Ensure that you have an 802.11b or 802.11g or 802.11n wireless adapter for each wireless computer , and that it is correctly installed and configured. V erify that each wir eless computer has either W indows 98 or higher or MAC OS 8.5 or higher . ■ V erify that your wireless computers are configure[...]

140 C HAPTER 6: T ROUBLESHOO TING unsure try r elocating both the wireless computers and the Router to establish whether this problem exists. ■ Most wireless computer adapters will scan the channels for the wireless Router . If a wireless computer has not located the Router th en try initiating a sear ch manually if the client software supports t[...]

Power Adapter 141 4 Using the Web br o wser on the computer , enter the following URL in the location bar: http://192.168.1.1 . This will connect you to the Recovery utility in the Router . 5 Follow the on-screen instructions. Enter the path and file name of the software image file. 6 When the upload has comple ted, the Router will rest art, run th[...]

142 C HAPTER 6: T ROUBLESHOO TING For refer ence, the part nu mber for the power adapter supplied for your region is: 3Com Number Region 3C15VHUS US and Canada 3C15VHUK UK 3C15VHME Europe and Middle East 3C15VHAA Australasia (except Japan and Korea) 3C15VHSA South Africa 3C15VHRA Argent ina[...]

Frequently Asked Questions 143 Frequently Asked Questions How do I r eset the Router to Factory Defaults? See Forgotten Password and Re set to Factory Defaults on page 138 . How many computers on the LAN does the Router support? Up to a maximum number of 253 tot al users on the LAN ar e supported. Please note that the maximum numb er of users suppo[...]

144 C HAPTER 6: T ROUBLESHOO TING[...]

A IP A DDR ESSING The Internet Protocol Suite The Internet Pr otocol suite consi sts of a we ll-defined set of communicat ions pr otocols and sever a l standard application pr otocols. T ransmission Control Pr ot ocol/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 tog[...]

146 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 siz e of th[...]

How does a Device Obtain an IP Address and Subnet Mask? 147 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 configured. Ta b l e 4 IP Addressing and Subnet Masking How does a Device Obtain an IP Address and Subnet Mask?[...]

148 A PPENDIX A: IP A DDRESSING Auto-IP Addressing Network devices use automatic IP addressing if they are configured to acquire an addr ess using DHCP but are unable to contact a DHCP server . Automatic IP addr essing is a scheme where devices allocate themselves an IP addr ess at random from th e industry s tandard subnet of 169.254.x.x (with a s[...]

B T ECHNICAL S PECIFICATIONS This section lists the technical spec ificatio ns for the 3Com W ireless 11n ADSL Fire wall Router . 3Com Wire less 11n Cable/DSL Firewall Router Interfaces ADSL connection LAN connection — four 10 Mbps/100 Mbp s dual speed Ethernet ports (10BASE-T/100BASE-TX) Antenna T wo external Dipole antennas fo r TX/RX function [...]

150 A PPENDIX B: T ECHNICAL S PEC IFICATIONS Standard IEEE 802.11g, Direct Sequence Spread Spectrum (DSSS) T ransmission rate: 54 Mbps, automatic fallback to 48, 36, 24, 18, 12, or 6M b p s Maximum channels: 13 Range up to 304.8 m (1000 ft) Sensitivity: 6, 12, 18, 24, 36 , 48 Mbps: -85 dB m; 54 Mbps -66 dBm typical Modulation: CCK, BPSK, QPSK, OFDM[...]

3Com Wireless 11n Cable/DSL Firewall Router 15 1 Standards Functional: ISO 8802/3 IEEE 802.3 IEEE 802.11b, 802.11g Safety: EN 60950-1: 2001 UL 60950-1 IEC 60950-1: 2001 EMC: FCC Part15 B EN 55022 EN 55024 EN 61000 EN 301 489-1 ICES-003 Radio FCC Part 15 C RSS-210 EN 300 328 Environmental: EN 60068 (IEC 68) T elcom FCC Part68 *See Regulatory Notices[...]

152 A PPENDIX B: T ECHNICAL S PEC IFICATIONS Ether net Performance The Router complies to the IEEE 802.3i, u and x specifications. Cable Specifications The Router supports the following cable types and maximu m lengths: ■ Category 5 (Fast Ethe rnet or Dual Speed Ethernet) T wisted Pair — shielded and unshi elded cable types. ■ Maximum cable l[...]

C S AFETY I NFORMATION Important Safety Information WAR N IN G : W arnings cont ain dire ctions tha t you must fo llow 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 N IN G : The Router generates and u ses radio frequency (rf) en ergy [...]

154 A PPENDIX C: S AFETY I NFORMATION WARNING: RJ-45 ports. These are shielded RJ-4 5 data sockets. They cannot be used as telephone so ckets. Only conn ect RJ-45 data connectors to these sockets. Wichtige Sicherheitshinweise VORSICHT : W arn hinweise enthalten Anweisungen, die Sie zu Ihrer eigenen Sicherheit befolgen müssen. Alle Anweisun gen sin[...]

155 VORSICHT : Es sind keine von dem Benutzer zu ersetzende oder zu wartende T eile in dem Gerät vorhanden. W enn 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 erbindung. VORSICHT : V or dem Ausbau des Gerä ts das Netzadapterkabel her[...]

156 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 SOFTW 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. DOWNLO AD[...]

158 A PPENDIX D: E ND U SER S OFTWARE L ICENSE A GREEMENT TRADE SECRETS; TITLE : You acknowledge and agree that the str ucture, sequence and organiz ation of the So ftware are the valuable trade secrets of 3Com and its supp liers. You agree to hold such trade secrets in confidence. You further acknowledge and agree that ownership of , and title to,[...]

159[...]

E O BTAINING S UPPORT FOR Y OUR 3C OM P R ODUCTS 3Com offers pr oduct registration, ca se management, and r epair services through eSupport.3com.com. Y ou must ha ve a user name and password to access these services, which ar e described in this appendix. Register Y our Product to Gain Service Benefits T o take advantage of warran ty and ot her ser[...]

Access Software Downloads 161 Contact your authorized 3Com rese ller or 3Com for ad ditional product and support information. See the table of acces s numbers later in this appendix. Access Software Downloads Y ou are entitled to bug fix / maintenance releases for the version of software that you initially purc hased with your 3Com product. T o obt[...]

162 A PPENDIX E: O BTAINING S UPPORT FOR Y OUR 3C OM P RODUCTS T o send a product directly to 3Com for repair , you must first obtain a return materials authorization numbe r (RMA). Products sent to 3Com without authorization numb ers clearly marked on the outside of the package will be returned to the sender unopened, at the sender’ s expense. I[...]

Contact Us 163 You can also obtain support in this region using this URL : http://emea.3com.com /sup port/email.h tml You can also obtain non-urgent support in this region a t these ema il addresses: Technical suppo rt and general requ ests: customer_support@3com.com Return material authorization: warranty_repair@3com.com Contract requests: emea_co[...]

164 A PPENDIX E: O BTAINING S UPPORT FOR Y OUR 3C OM P RODUCTS[...]

G LOSSARY 802.11b The IEEE specification for wireless Ethe rnet which allows speeds of up to 11 Mbps. The standard pr ovides fo r 1, 2, 5.5 a nd 11 Mbps dat a 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 ovid[...]

166 G LOSSARY Ad Hoc mode Ad Hoc mode is a configuration supported by most wireless clients. It is used to connect a peer to peer network together without the use of an access point. It offers lower performa nce than infr astructure mode, which is the mode the r outer uses. (see Infrastructure mode.) Auto-negotiation Some devices in the range su pp[...]

G LOSSARY 167 DHCP Dynamic Host Configuration Protocol. This protocol automatically assigns an IP address for every computer on yo ur network. W indows 95, W indows 98, W indows NT 4.0, W indows 2000, W indows XP , and W indows Vista contain software that assigns IP addresses to workstations on a network. These assignments are made by the DHCP serv[...]

168 G LOSSARY Full Duple x A system that allows packets to be transmitted and received at the same time and, in effect, doubles the potential thr oughput of a link. Half Duplex A system that allows packets to transmitted and received, but not at the same time. Cont rast with full duple x. Hub A device that regenerates LAN traffic so that the transm[...]

G LOSSARY 169 IPSec IP Security . Provides IP network-la yer encryption. IPSec can suppor t large encryption netw orks (such as the Internet) by u sing digital certificates for device authentication. When setting up an IPSec connectio n between two devices, make sure that they support the same encryption method. ISP Inter net Service Provider . An [...]

170 G LOSSARY PPPoE Point-to-Point Protocol over Ethernet. Point-to-Point Pr otocol is a method of data transmission o riginally creat ed for dial-up connectio ns; PPPoE is for Ethern et connections. PPTP Point-t o-Point T unneling Protocol is a method of secur e data transmission between two remote sites over the Internet. RJ-45 A standard connect[...]

G LOSSARY 171 TCP/IP T r ansmission Control Protocol/Internet Protocol. This is the name for two of the most well-known protocols developed for t he interconnection of networks. Originally a UNIX standard, TCP/IP is no w supported on almost all platforms, an d is the pr otocol of the Internet. TCP r elates to the content of the data travelling thro[...]

172 G LOSSARY Wir eless Client The term used to describe a deskt op or mobile PC that is wirelessly connected to your wireless network. Wir eless LAN Service Area Another term for ESSID (Exten ded Service Set Identifier ). Wizard A Windows application t hat automates a procedure such as installation or configuration. WLAN W ireless Local Ar ea Netw[...]

173 R EGULATORY N OTICES For 3Com Wireless 11n ADSL Fir ewall Router G ENERAL S TAT EMENTS The 3Com Wireless 11n ADSL Firewall Router (WL-603) must be installed and used in strict ac cordance with the manufacturer's instructions as described in the user documentation th at comes with the pr oduct. This product contains encrypti on. It is unlaw[...]

174 The correction of interference caused by such unau t horized modifi cation, substitution or attachment wi ll be the responsibility of the us er. Changes or modificatio ns not expressly approved by 3Com could void the u ser's au thority to operate this equipment. FCC P ART 68 S TA TEMENT This equipment complies with Part 68 of the FCC rule [...]

175 I NDUSTRY C ANADA - RF C OMPLIA NCE This device complies with RSS-210 of the Indus try Canada Rules. Operation is subject to the followin g two conditions: 1) this device may not cause interf erence and, 2) this devi ce must accept any interference, inc luding interference that may cause unde sired operation of the device. L ' utilisation [...]

176 Č esky [Czech ] 3Com Coporation tímto prohlašuje, ze tento RLAN device je ve shod ě se základní mi pozadavky a dalšími p ř íslušnými ustanoveními sm ě rnice 199 9/5/ES. Dansk [Danish] Undertegnede 3Com Corpor ation erklærer herved, at følgende udstyr RLAN device overholder de væsentlige krav og øvrige relevante krav i direktiv[...]

177 A copy of the signed Declaration of Conformity can be downloaded from the Pro duct Support web page for the 3Com Wireless 11n ADSL Firewall Router at http://w ww.3Com.com. Also available at http://suppo rt.3com.com/do c/WL-603_EU_DOC. pdf. EU - R ESTRICTIONS FOR U SE IN THE 2.4GH Z BAND This device may be operated indoors or outdoors in all cou[...]

178[...]

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[...]

180 I NDEX configuring 56 MAC Addr ess Filtering Scr een 66 mode 30 N NA T (Network Address T ranslation) 68 NA T -T (NA T T raversal) 68 Network addresse s 85 Networking wirele ss 81 NIC wirele ss 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 Re[...]