Manuale d’uso / di manutenzione del prodotto 4401 del fabbricante Zoom
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AP+4 U S E R G U I D E.
2 Contents Overview ........................................................................... 5 Installing the AP+4 .......................................................... 6 Connecting the Hardware............................................... 7 Setting Up the AP+4 .
3 DMZ ............................................................................. 56 Denial of Service .......................................................... 57 VPN Settings .................................................................. 61 VPN Setup (Client) .
4 Package Contents The AP+4 package contains the follo wing: • AP+4 • Power cube • Ethernet cable • Quick Start • CD containing warranty informatio n and this documentation If anything is missing or damaged, please contact Zoom Customer Support or the vendo r from whom you pu rchased the AP+4.
5 Overview You can use the AP+4 as a Router/A ccess Point, Universal Repeater, Ethernet Client or Wirele ss ISP. • • • • As a Router/AP , the AP+4 handle s local network traffic both wirelessl.
1 Installing the AP+4 This chapter provides ba sic instructions for connecting the hardware and configuring t he AP+4 using the Setup Wizard. If you have already done this by follo wing the instructions in the printed Quick Start , skip to Chapter 2, Wireless Configuration , on page 20 .
Chapter 1. Installing the AP+4 7 Connecting the Hardware 1 Put the AP+4 near a computer to be used for setup. That computer needs an Ethern et (LAN) port. 2 Turn off the computer. 3 Connect one end of the supplied p ower cube to the AP+4 PWR jack, and the other end to a live power source.
8 Zoom AP+4 User Guide LED Status The AP+4 is . . . PWR Steady connected to a power source WLAN Flashing Steady broadcasting its SSID (net work name) not broadcasting its SSID and therefore not availa.
4 On the Choosing an Operating Mode page, sel ect the way you want to use the AP+4: Router/Access Point . In this mode, which is the one most users will select, the AP+4 links all wirel ess enabled computers and other devices to a netwo rk and gives those devices shared access to your broadband Internet connectio n.
5 To have the AP+4’s clock autom atically updated by an NTP server, on the Selecting a Time Zone page, select a Time Zone and an NTP Server , and cli ck Next . 6 If you need to set up or modify your wired local network, use the LAN Interface Setup page (se e page 37 of this manual for more information).
• • If you are using the AP+4 as an Ethernet Client or a Repeater, at WAN Access Type you should also select DHCP Client unless you have requested a Static IP from your Internet Servic e Provider. If so, select Static IP and enter the values for IP Address , Subnet Mask , Default Gateway and DNS Server that you want to use on your network.
12 Zoom AP+4 User Guide ¾ G if the network includes only 802.11g device s • • • • • • At Wireless Operation , select ¾ AP if you are using the AP+4 as a Router/Acce ss Point or a Repeate.
9 On the Setting up Wireless Security page, select an encryption method to protect your wirel ess communication. We strongly recomm end that you set up security .
14 Zoom AP+4 User Guide • • • Select WPA2 Mixed if some of the devices in your n etwork support WPA2 and some support WPA, and then follow the instructions for WPA2 above. Select WPA (TKIP) if all the devices in your net work support this method, and then follow the instructi ons for WPA2 above.
Chapter 1. Installing the AP+4 15 If you selected ASCII and you chose a 64-bit key length, write your 5-ASCII-character key in the space below for future reference, and then enter the key in the Encryption Key 1 box. — — — — — Click Finished , and at the Settings changed suc cessfully! message, click OK .
2 16 Zoom AP+4 User Guide Monitoring AP+4 Status The Status page is displayed wh en you open the AP+4 configuration software: Field Data displayed System Uptime The elapsed time of the current AP+4 session Firmware Version The AP+4 revision number. If you contact Zoom Technical Support, you will be asked for this number.
Chapter 2. Monitoring AP+4 Status 17 Field Data displayed Wireless Configuration Mode Selected operating mode: AP, Client, WDS ( W ireless D istribution S ystem), or AP+WDS Band Selected wireless frequency band. 2.4 GHz B indicates a network of 802.11b devices, 2.
18 Zoom AP+4 User Guide Field Data displayed WAN Configuration Attain IP Protocol DHCP ser ver if the AP+4 is connected directly to an ADSL or cable modem Fixed IP if the AP+4 is using a static IP address PPPoE connected if you have an ADSL modem and your ISP requires PPPoE PPTP connected if you have set up a VPN and you have a static IP address.
3 Operating Mode Selecting an Operating Mode is the first step in configuring your AP+4. You may have completed this step using the Setup Wi zard described in Chapter 1. If you want to change these settings, or if you are manually configuring the AP+4, in the left menu pane select Operation Mode .
4 Wireless Configuration To set up or modify the parameters for your wireless netwo rk, in the left menu pane select Wireless . Basic Settings This page includes all the param eters on the Setup Wizard’s Configuring the Wireless Net work page.
Chapter 4. Wireless Configuration 21 Parameter Select or enter . . . Disable Wireless LAN Interf ace To deny access to the AP+4 network by wireless devices, select this check box. When you disable the wireless LAN, the WLAN LED on the front panel stops fl ashing, indicating that the AP+4 is no longer broadcas ting its SSID.
22 Zoom AP+4 User Guide Parameter Select or enter . . . Channel Number Infrastructure network : Leave the default Au t o . The AP+4 automatically select s the channel with the least interference. Ad Hoc network : Select a channel. Associated Clients Click Show Active Clients for a list of devices on the wireless net work.
Active W ireless Client T able On the Wireless Basic Settings page, click Sho w Active Clients to display a list of network devices (clients): Parameter Data displayed MAC A ddress MAC address of the .
W ireless Security We strongly recommen d that you set up security to protect your network communication. T he encryption method of choice is WPA2-AES ( W iFi® P rotected A ccess 2 – A dvanced E ncryption S tandard).
Chapter 4. Wireless Configuration 25 WPA2 (A ES), WPA (TKIP) , or WPA Mixed Enterprise (RADIUS) Select this option in the unlikely event that yo ur network connects to a RADIUS server. Then select Use 802.1x Authentication and enter the RADIUS server’s Port , IP Address and Password .
26 Zoom AP+4 User Guide WEP Click Set WEP Key and enter the following information. Key Length Select an encryption key l ength of 64 bits or 128 bits (128 bits preferred). Key Format If all the wireless devices in the network are Zoom products, select AS C I I .
Access Control Use this page to allow or deny access to the network. Parameter Select or enter . . . Wireless Access Control Mode Select: • Deny Listed to prevent access by clients whose MAC addresses are list ed • Allow Listed to permit access by clients whose MAC addresses are list ed MAC A ddress Enter client addresses, one at a time.
WDS Settings A W ireless D istribution S ystem (WDS) expand s a wireless network by using multiple Access Point s connected wirelessly. All APs must use the same channel. To use the AP+4 as a Repeater, on the Wireless Basic Setup page at the Mode option, select AP+WDS .
Delete Selected In the Current Access Control List , click the Select check box for one or more MAC addresses and then click this button to de lete. Delete All Click this button to clear the list. Reset Click to clear the Select check boxes. Site Survey This page displays the available wi reless networks in your vicinity.
30 Zoom AP+4 User Guide Parameter Displays . . . SSID S ervice S et ID entifier: Network name BSSID B asic S ervice S et ID entifier: MAC address of the network’s access point Channel Radio channel and the t ype of devices in the network (802.11g, 802.
Advanced Settings As explained on this page, the Advanced Settings are designed for people with wireless net work knowledge and experi ence. Most people will not need to change the se settings. Parameter Select or enter . . . Authentication Type These settings are used with WEP.
32 Zoom AP+4 User Guide • Aut o to allow either Open or Shared Key clients with the correct SSID and WEP key to connect and communicate. Fragment Threshold Fragment (Data fragmentation) Threshold: If the AP+4 often transmits large files, you can set a limit on packet size.
Chapter 4. Wireless Configuration 33 Turbo Mode If the device you want to connect to supports Turbo mode, set this parameter to Au t o to achieve significantly faster communication. Block Relay Between Clients Use this feature to prevent two AP+4 clients from communicating directly.
WiFi Protected Setup™ (WPS) If there are devices on your home or office network th at support WiFi Protected Setup (WPS), this protocol can greatly simplify the process of configuri ng WPA2 or WPA security on the devices. With WPS, you set security on one network devi ce at a time.
Parameter Select or enter . . . Disable WPS Select this check box to turn off WPS. By default, WPS is enabled. Self PIN Number (Display only) Automatically gener ated AP+4 PIN. For a different number, click Regenera te PIN . Push Button Configuration (PBC) To have the AP+4 search for another WPS- enabled device for 2 minutes, click Start PBC .
Note : As indicated above in the discu ssion of the WPS Status option, you can use the WPS page to configure security simultaneously on the AP+4 and the first device in the network.
5 TCP/IP Settings LAN Interface To modify a wired Local Area Networ k, in the left menu pane select TCP/IP Settings → LAN Interface : Parameter Select or enter .
38 Zoom AP+4 User Guide DHCP Client Range The default range is shown: 10.0.0.1 to 10.0.0.199. Enter a different range if desired. Click Show Clients to view a list of connected devices. Domain Name If you have a large network that uses domains, enter a name.
WA N I n t e r f a c e To set up or modify the way the AP+ 4 connects to the Internet, in the left menu pane select TCP/IP Settings → WAN I nterface : Parameter Select or enter . . . WAN Access Type • DHCP Client if you are connected directly to an ADSL or cable modem.
40 Zoom AP+4 User Guide DHCP Client If you select DHCP Clien t as your WAN Access Type, you see the following parameters: Parameter Select or enter . . . Host name A network name negotiated with the ISP *MTU Size The size of the M aximum T ransmission U nit, the largest physical packet size that a net work can transmit.
Chapter 5. TCP/IP Settings 41 Parameter Select or enter . . . Enable Web Server A ccess on WA N Select this check box to allow someone to remotely access the AP+4’s built-in HT TP server. Web server access is useful for troubleshooting – it can allo w a technician to remotely check the AP+4 configuration settings.
S t atic IP If you select Static IP as your WAN Access Type, you see the following parameters: Parameter Select or enter . . . IP Address If you are directly connected to an ADSL modem, enter the IP Address assigned by your Internet Service Provider.
Chapter 5. TCP/IP Settings 43 DNS 3 The address of an alternate DNS server to u se in case DNS Servers #1 and #2 are do wn or very slow Clone MAC Address (Usually optional) Enter the MAC addr ess of a device in the LAN net work if you want to use that address for Internet access instead of the AP+4’s MAC address.
PPPoE (ADSL only) If you select PPPoE ( P oint-to- P oint P rotocol o ver E thernet) as your WAN Acce ss Type, y ou se e the following parameters: Parameter Select or enter . . . User Name T he login name given to you by your ISP – typically the characters prec eding the @ sign in your email address.
Chapter 5. TCP/IP Settings 45 • Manual if you must select the Connec t and Disconnect buttons on this page. Idle Time The number of minutes of inactivit y after which the connection is dropped. MTU Size The size of the M aximum T ransmission U nit, the largest physical packet size, measured in bytes, that a network can transmit.
46 Zoom AP+4 User Guide Parameter Select or enter . . . Enable Web Server A ccess on WA N Select this check box to allow someone to remotely access the AP+4’s built-in HT TP server. Web server access is useful for troubleshooting – it can allo w a technician to remotely check the AP+4 configuration settings.
PPTP (VPN only) If you select PPTP ( P oint-to- P oint T unneling P rotocol) as your WAN Access Type, you see the following parameters: Parameter Select or enter .
48 Zoom AP+4 User Guide Request MPPE Encryption Select this option to use M icrosoft P oint-to- P oint E ncryption, technolog y developed by Microsoft for encrypting communication ov er a VPN tunnel. Atta in DNS Automatically If you select this option, your ISP provider assigns a D omain N ame S erver (DNS).
Chapter 5. TCP/IP Settings 49 Parameter Select or enter . . . Enable Web Server A ccess on WA N Select this check box to allow someone to remotely access the AP+4’s built-in HT TP server. Web server access is useful for troubleshooting – it can allo w a technician to remotely check the AP+4 configuration settings.
6 Firewall Settings The AP+4 lets you set up firewall protection for your network. There are several ways you can filter out unwante d communication to and fro m the network devices. To access the filters, in the left menu pane click Firewall . P ort Filtering This filter can disable a range of port s on the network clients.
Chapter 7. VPN Settings 51 Parameter Select or enter . . . Protocol Select • TCP ( T ransmission C ontrol P rotocol) • UDP ( U ser D atagram P rotocol) • Both Click Apply Changes to add the Port Range and protocol to the Current Port Filter list.
IP Filtering This filter can prevent data from certain IP addre sses being sent over the Internet to computers or other d evices on the Local Area Network. Parameter Select or enter . . . Enable IP Filtering Select this check box to protect computers or other devices in the Local Area Net work from receiving unwanted Internet communic ation.
MA C Address Filtering Use this page to specify the MA C addresses of devic es who are allowed to join the wireless network. Parameter Select or enter . . . Enable MAC Filtering When you select this check box, the AP+4 will compare the MAC address of a device requesting access to the net work with the Current Filter Table .
URL Filtering Use this page to prevent access by devic es on the Local Area Network to certain Web sites (URLs). Parameter Select or enter . . . Enable URL Filtering When you select this check box, the AP+4 will block acccess by devices on the LAN to W eb site addresses (URLs) displa yed in the Current Filter Table .
P ort Forwarding Port forwarding is a way of creating a tunnel through t he AP+4’s firewall so that computers on the Internet can communicate via a single port to one of the computers on your LA N.
DMZ Use this page to designate a computer on the Local Area Network as a DMZ ( D e m ilitarized Z o ne). All ports on this computer are opened up to all Internet traffic – the co mputer is no longer protected by the AP+4’s NAT firewall.
Denial of Service Also known as “cyber attacks” or “nukes,” Deni al of Service attacks are deliberate attempts by hackers to bring y our network down.
58 Zoom AP+4 User Guide Parameter Select or enter . . . Whole System Flood: SYN This type of attack sends large numbers of SYN (Synchronization or Start Connection) packets, which create “half-open” connecti ons to the Internet and prevent the AP+4 from accepting any new requests to connect.
Chapter 7. VPN Settings 59 Parameter Select or enter . . . Per Source IP Flood: ICMP This type of attack involves large numbers of ICMP ( I nternet C ontrol M essage P rotocol) requests, such as ping or netmask, etc., with the source address spoofed to appear to be the address of a LAN client.
60 Zoom AP+4 User Guide Parameter Select or enter . . . TCP Syn with Data Select this check box to defend against an attack where the TCP port scanner generates a SYN packet. If the target port is open, it will respond with a SYN-ACK packet. The scanner responds with a RST packet, closing the connection before the hands hake is completed.
7 VPN Settings Use these pages to set up a VPN ( V irtual P rivate N etwork) to allow your company’s remote employee s to communicate privately over the Internet. From the left menu pane, select VPN Settings to open the VPN Setup page: Parameter Select or enter .
62 Zoom AP+4 User Guide Parameter Select or enter . . . Enable NAT Traversal Select this check box to send IPsec-protected traffic across a N etwork A ddress T ranslator (NAT). Generate RSA Key Click this button to create a private cryptographic key (RSA are the initials of the three inventors), which will be used in conjunction with a public key.
VPN Setup (Client) On the main VPN Setup page, select the option button for a VPN client and then click Edit to open the VPN client setup page: Parameter Select or enter . . . Enable Tunne l x Select this check box to enable a VPN tunnel between the AP+4 and anoth er VPN endpoint.
64 Zoom AP+4 User Guide Local Site Select Subnet A ddress or Single A ddress Local IP Address/Network Enter 10.0.0.0 Local Subnet Mask (If Subnet Address is selected) Enter 255.
If you select IKE , the following options appear: Parameter Select or enter . . . Connection Ty pe Select Responder or Initiator . If you select Responder, the Connect button is available.
If you select Manual , the following options appear: Parameter Select or enter . . . ESP ( E ncapsulating S ecurity P ayload) Select an encryption algorithm: 3DES (a mode of the D ata E ncryption S ta.
Advanced VPN Settings for IKE IKE ( I nternet K ey E xchange) is the protocol used by VPNs to establish a connection bet ween a server and a remot e client. On the VPN client setup page, in the Key Management se ction click the IKE button to open the VPN Settings for IKE page: Parameter Select or enter .
68 Zoom AP+4 User Guide Authentication Algorithm Select: MD5 (A digital signature algor ithm) SHA1 ( S ecure H ash A lgorithm) Key Group Select one of the following DH ( D iffe- H elman) encryption al.
8 Management Statistics In the left menu pane, under Management, select Statistics to display the Transmit and Receive statistics fo r the AP+4’s wireless and wired co nnections: 69 Zoom AP+4 User G.
DDNS DDNS stands for D ynamic D omain N ame S ervice. If the AP+4 receives dynamic IP addresses from your Internet Service Provider, the AP+4’s address ch anges whenever it conne cts to your ISP. If you are running a Web se rver on your network, clients will not know the AP +4’s IP address and will be unable to connect.
Chapter 8. Management 71 Parameter Select or enter . . . . Password/Key If you selected D ynDNS, enter a password. If you selected TZO, enter a key. Apply Changes Click this button to save your selections. Reset Click this button to rest ore the default settings.
Time Zone Settings To synchronize the AP+4 with an NTP ( N etwork T im e P rotocol) server, in the left menu pane, under Manageme nt, select Time Zone Settings : Parameter Select or enter . . . . Current Time Displays the current time in yo ur time zone.
Log To display the AP+4’s log, in the left menu pane, under Management, select Log : Parameter Select or enter . . . . Enable Log Select this check box to display the AP+4’s event log.
74 Zoom AP+4 User Guide Parameter Select or enter . . . . Log Server IP Address Enter the IP address of the remote log server. Apply Changes Click this button to save your log settings. Refresh Click this button to update the log dis play. Clear Click this button to clear the log.
Upgrade Firmware From time to time, Zoom may release updated firmware for your AP+4. 1 To see if there is an update, periodically visit the Zoom Web site: www.zoom.com . 2 Download the upgrade files from the We b site to your computer, and unzip the files if necessary.
Save/R eload Configuration Use this page to download the curre nt settings from the AP+4 and save them to a file on your PC. You can reload a previously downloade d configuration file back to the AP+4. This page also allows you to set the AP+4 back to its factory default configuration.
Pa s s w o r d S e t u p Use this page to set a passwor d to protect the AP+4’s settings from unauthorized access. In the left menu pane, under Management , sel ect Pass word: Parameter Select or enter . . . . User Name Enter a user n ame of up to 30 characters.
Appendix A. Troublesh ooting 78 Appendix A Troubleshooting Problem I followed the instructions for conne cting the AP+4 hardware and entered 10.0.0.200 in my web browser’ s address bar, but I cannot access the AP+4.
Appendix A. Troublesh ooting 79 5 Select Use the follo wing IP address and enter 10.0.0.100 and 255.255.255.0 as the IP address and Subnet mask , respectively.
80 Zoom AP+4 User Guide Windows 2000 Users: 1 On the Wi ndows deskto p, click Start , point to Settings , select Control Panel and then sel ect Network and Dial-up Connections. 2 Right-click the Local Area Conne ction icon and select Properties . 3 Highlight the Internet Protocol (TCP/IP) entry and click the Properties button.
Appendix A. Troublesh ooting 81 Problem I set up my AP+4 as an access point, but the devices I set up on my zoom wireless network cannot access the Inte rnet. Solution 1 Verify that a wired computer can access the Intern et. • a b c • a If it cannot, try the following: Make sure the associated LAN port LED on the AP+4 front panel is lit.
82 Zoom AP+4 User Guide b c d Double-click the Net w ork Connections icon. Click the Wireless Network Connec tion icon. Look at the details that appear on the left side of the screen. If the signal strength is low, try repositioning t he antennas of the AP+4.
Appendix B. Technical Supp ort 83 Appendix B Zoom Customer Support Please fill in the following inform ation, since it will speed up support if you ever need it.
84 Zoom AP+4 User Guide World Wide Web Zoom’s Web page lets you reque st assistance via e-mail, register online, access p roduct reviews and descriptions, an d do a whole lot more. Visit the Zoom Technical Support a rea for the latest flash upgrades and drivers for your Zoo m product.
85 Zoom AP+4 User Guide Appendix C Regulatory Information U.S. FCC Part 15 Emissions Statement This equipment has been tested an d found to comply with the limits for a Class B digital device, purs uant to part 15 of the FCC Rules.
86 Zoom AP+4 User Guide de la classe B respecte toutes les exigence s du Règlement sur le matériel brouilleur du Can ada. Operation is subject to the following t wo conditions: 1) this device may not cause interference and 2) this device must accept any interference, inclu ding interference that may cause undesired operation of the devic e.
Declaration of Conformity Declaration of Confor mity Déclaration de conformi té Konformitätserklärung 0808-B 27442 ©2008 Δήλωση Συμμόρφωσης Dichiarazi one di conformità Deklar a.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Zoom 4401 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Zoom 4401 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Zoom 4401 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Zoom 4401 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Zoom 4401, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Zoom 4401.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Zoom 4401. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Zoom 4401 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
