Manuale d’uso / di manutenzione del prodotto TW100-BRF114U del fabbricante TRENDnet
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i Table of Contents CHAPTER 1 INTRODUCTION ............................................................................................. 1 Broadband Router Features ......................................................................................
ii APPENDIX A TROUBLESHOOTING ................................................................................ 87 Overview ....................................................................................................................... ... 87 General Pr oblems .
1 Chapter 1 Introduction This Chapter provides an overview of the Broadband Router's features and capabilities. Congratulations on the purchase of y our new Broadband Router. The TW100-BRF114U is a multi-funct ion device providing the fol lowing services: • Shared Broadband Internet Access for all LAN users.
Broadband Router User Guide 2 • Fixed or Dynamic IP Address. On the Internet (WAN port) connection, the TW100- BRF114U supports both Dynam ic IP Address (IP Address is all ocated on connection) and Fixed IP Address. Advanced Internet Functions • Communication Applications.
Introduction 3 • Remote Management. The TW100-BRF114U can be managed from any PC on your LAN. And, if the Internet connection exi sts, it can also (opti onally) be configured via the Internet. • Network Diagnostics. You can use the TW100-BRF114U to perform a Ping or DNS lookup .
Broadband Router User Guide 4 Physical Details Front-mounted LEDs Figure 2: Front Panel Power On - Power on. Off - No power. Status (Red) On - Error condition. Off - Normal operation. Blinking - This LED blinks during start up. LAN For each port, there are 2 LEDs • Link/Act • On - Corresponding LAN (hub) port is acti ve.
Introduction 5 Rear Panel Figure 3: Rear Panel USB Printer Port If you wish to share a printer, connect it here. Reset Button This button has two (2) functi ons: • Reboot . When pressed and released, the TW100-BRF114U will reboot (restart). • Clear All Data .
6 Chapter 2 Installation This Chapter covers the physical i nstallation of the Broadband Rout er. Requirements • Network cables. Use standard 10/100BaseT network (UTP) cabl es with RJ45 connectors. • TCP/IP protocol m ust be installed on all PCs. • For Internet Access, an Internet Access account wi th an ISP, and either a DSL or Cable modem .
Introduction 7 3. Connect WAN Cable Connect the DSL or Cable m odem to the WAN port on the TW100-BRF114U. Use t he cable supplied with y our DSL/Cable m odem. If no cable was supplie d, use a standard ca- ble. 4. Connect Printer Cable Use a standard USB printer cable to connect your p rinter to the USB Printer po r t on the TW100-BRF114U.
8 Chapter 3 Setup This Chapter provides Set up details of the TW100-BRF114U. Overview This chapter describes the setup procedure for: • Internet Access • LAN configuration • Assigning a Password to protect the confi guration data. PCs on your local LAN m ay also require configurati on.
Setup 9 Configuration Program The TW100-BRF114U contains an HTTP server. This enables you t o connect to it, and con- figure it, using your Web Browser. Your Brow ser must support JavaScript . The configuration program has been tested on the following browsers: • Netscape V4.
Broadband Router User Guide 10 If you can't connect If the TW100-BRF114U does not respond, check the following: • The TW100-BRF114U is properly instal led, LAN connection is OK, and i t is powered ON. You can test the connection by using the "Ping" comm and: • Open the MS-DOS window or com mand prom pt window.
Setup 11 Setup Wizard The first time you connect to the TW100-BRF114U , the Setup Wizard will run automatically. (The Setup Wizard will also run if the TW 100-BRF114U's default setting are restored.) 1. Step through the Wizard until finished. • You need to know the type of Internet connect ion service used by your ISP.
Broadband Router User Guide 12 PPTP, L2TP PPTP and L2TP are mainly used in Europe. You connect to the ISP only when required. The IP address is usually allocated auto mati- cally, but may be Static (Fixed). • Server Address. • User name and password.
Setup 13 Home Screen After finishing the Setup W izard, you will see the Home screen. Wh en you connect in future, you will see this screen when you connect .
Broadband Router User Guide 14 LAN Screen Use the LAN link on the main m enu to reach the LAN screen An example screen is shown below. Figure 6: LAN Screen Data - LAN Screen TCP/IP IP Address IP address for the TW100-BRF114U, as seen from the local LAN.
Setup 15 DHCP What DHCP Does A DHCP (Dynami c Host Configuration Prot ocol) Server allocates a valid IP address to a DHCP Client (PC or device) upon request. • The client request is m ade when the client device starts up (boots). • The DHCP Server provides the Gateway and DNS addresses to the client, as well as allocating an IP Address.
Broadband Router User Guide 16 Password Screen The password screen allows you to assign a password to the TW100-BRF114U. Figure 7: Password Screen Once you have assigned a password to the TW100-BRF114U (on the Password screen above) you will be prompted for the password when you connect, as shown below.
17 Chapter 4 PC Configuration This Chapter detail s the PC Configurat ion required on the local ("Int ernal") LAN. Overview For each PC, the following may need to be configured: • TCP/IP n.
Broadband Router User Guide 18 Checking TCP/IP Settings - Windows 9x/ME: 1. Select Control Panel - Net work . You should see a screen like the fol lowing: Figure 9: Network Configuration 2. Select the TCP/IP protocol for your net work card. 3. Click on the Properti es button.
PC Configuration 19 • On the Gateway tab, enter the TW100-BRF114U's IP address in the New Gateway field and click Add , as shown below. Your LAN adm inistrator can advise you of t he IP Address they assigned to the TW100-BRF114U. Figure 11: Gateway Tab (Win 95/98) • On the DNS Configurati on tab, ensure Enable DNS is selected.
Broadband Router User Guide 20 Checking TCP/IP Settings - Windows NT4.0 1. Select Control Panel - Net work , and, on the Protocols tab, select the TCP/IP protocol , as shown below. Figure 13: Windows NT4.0 - TCP/IP 2. Click the Properties button to see a screen like the one below.
PC Configuration 21 Figure 14: Windows NT4.0 - IP Address 3. Select the network card for your LAN. 4. Select the appropriate radio button - Obtain an IP address from a DHC P Server or Specify an IP Address , as explained below. Obtain an IP address from a DHCP Server This is the default Windows setting.
Broadband Router User Guide 22 Figure 15 - Windows NT4.0 - Add Gateway 2. The DNS should be set to the address provided by y our ISP, as follows: • Click the DNS tab. • On the DNS screen, shown below, click the Add butt on (under DNS Service Search Order ), and enter the DNS provided by y our ISP.
PC Configuration 23 Figure 16: Windows NT4.0 - DNS.
Broadband Router User Guide 24 Checking TCP/IP Settings - Windows 2000: 1. Select Control Panel - Net work and Dial-up Connecti on . 2. Right - click t he Local Area Connection icon and select Properties . You shoul d see a screen like the following : Figure 17: Network Configuration (Win 2000) 3.
PC Configuration 25 Figure 18: TCP/IP Properties (Win 2000) 5. Ensure your TCP/IP settings are correct , as described below. Using DHCP To use DHCP, select the radio button Obtain an IP Address automaticall y . This is the default Windows setting. Using this is recommended .
Broadband Router User Guide 26 Checking TCP/IP Settings - Windows XP 1. Select Control Panel - Net work Connection . 2. Right click t he Local Area Connection and choose Properties . You should see a screen like the following: Figure 19: Network Configuration (Windows XP) 3.
PC Configuration 27 Figure 20: TCP/IP Properties (Windows XP) 5. Ensure your TCP/IP settings are correct. Using DHCP To use DHCP, select the radio button Obtain an IP Address automaticall y . This is the default Windows setting. Using this is recommended .
Broadband Router User Guide 28 Internet Access To configure your PCs to use th e TW100-BRF114U for Internet access: • Ensure that the DSL modem , Cable m odem, or other perm anent connection is funct ional. • Use the following procedure to configure your Browser to access the Internet via the LAN, rather than by a Dial-up connection.
PC Configuration 29 Printer Setup for Windows The TW100-BRF114U provides printing support for 2 methods for pri nting from Windows: • Print Port Driver. After installi ng the Print Port Driver, Windows users can print di- rectly to the TW100-BRF114U Print jobs are spooled (queued) on each PC.
Broadband Router User Guide 30 Under Window s 95, if you see the following error message, either install Internet Explorer 4 or later, or follow the pro- cedure in the "Trouble Shooting - Printing" section of Appendix A.
PC Configuration 31 Figure 22: Print Port Configuration Items shown on this screen are as follows: Port If desired, click Browse to select a different device. (The Select Device Port button is provided to allow this software to work with multi-port models.
Broadband Router User Guide 32 LPD/LPR Printing LPD/LPR printing can be used wit h Windows NT 4.0 Server or Windows 2000/2003. No software needs to be installed o n client PCs. Windows NT 4.0 Server Configuration To use LPD printing, Microsoft TCP/IP Printing must be installed and enabled.
PC Configuration 33 Windows 2000/2003 Server Configuration The LPD/LPR Port is not enabled by default . To enable it, use this procedure: 1. In Control Panel, select Add/Remove Program s, then Windows Component s. 2. Select Other Network File and Pri nt Services , then click the Details button.
Broadband Router User Guide 34 Figure 24: Windows 2000: Select Port 4. In the Dialog requesting Name or Address of server providing lpd , enter the IP address of the TW100-BRF114U. 5. For Name of printer or print queue on t hat server , enter L1 6. Click OK, and then Next , and cont inue the Wizard.
PC Configuration 35 Figure 25: Network Path - Windows 98/ME Figure 26: Network Path - Windows XP 4. Browse the network, and lo cate the Server and Printer (or Print Qu eue) which your Net- work Administ rator advised you to use. 5. Click OK, then Next .
Broadband Router User Guide 36 Macintosh Clients From your Macintosh, you can access the Inte rnet via the TW100-BRF114U. The procedure is as follows. 1. Open the TCP/IP Control Panel. 2. Select Ethernet from the Connect via pop-up m enu. 3. Select Using DHCP Server from the Confi gure pop-up menu.
PC Configuration 37 Printing Setup on Linux The TW100-BRF114U supports LPD Printing on Linux. The procedure t o install a LPD printer is detailed below, but may vary accord ing to your version of Linux and X -windows shell. 1. In your X Windows shell, select Control Panel , then Printer Configuration .
38 Chapter 5 Operation and Status This Chapter details the operation of the Broadband Router and use of the status screens. Operation Once both the TW100-BRF114U and the PCs are configured, operation is automatic.
Operation and Status 39 Data - Status Screen Internet Connection Method This indicates the current connect ion method, as set i n the Setup Wizard. Broadband Modem This shows the connection status of the m odem.
Broadband Router User Guide 40 Connection Status - PPPoE If using PPPoE (PPP over Ethernet), a screen like the following example will be displayed when the "Connectio n Details" button is click ed .
Operation and Status 41 • The "Clear Log" button will restart th e Log, while the Re- fresh button will update the messages shown on screen. Buttons Connect If not connected, establish a connect ion to your ISP. Disconnect If connected to your ISP, hang up the connection.
Broadband Router User Guide 42 Connection Status - PPTP If using PPTP (Peer-to-Peer Tunne ling Protocol), a screen like the following example will be displayed when the "Connect ion Details" butt on is clicked.
Operation and Status 43 Disconnect If connected to your ISP, hang up the connection. Clear Log Delete all data currently in the Log . This will make it easier to read new messages. Refresh Update the data on screen. Connection Status - Telstra Big Pond An example screen is shown below.
Broadband Router User Guide 44 nect buttons unless the setti ng "Connect automati cally, as re- quired" is disabled. Connection Log Connection Log • The Connection Log shows status messages relating t o the existing connection.
Operation and Status 45 is allocated by your ISP (Internet Service Provider). Network Mask The Network Mask associated wi th the IP Address above. Default Gateway Th e IP Address of the remote Gatewa y or Router associated with the IP Address above. DNS IP Address The IP Add ress of the Domain Name Server which is currently used.
Broadband Router User Guide 46 Data - Fixed/Dynamic IP address Screen Internet Physical Address The hardware address of this device, as seen by rem ote devices on the Internet. (This is different to the hardware address seen by devices on the local LAN.
47 Chapter 6 Advanced Features This Chapter explains when and how to use the TW100-BRF114U 's "Ad- vanced" Features. Overview The following advanced features are provided.
Broadband Router User Guide 48 Access Control Screen To view this screen, select the Access Control link on the Advanced m enu. Figure 33: Access Control Screen Data - Access Control Screen Group Group Select the desired Group. The sc reen will update to display the settings for the selected Group.
Advanced Features 49 Internet Access Restrictions Select the desired options for t he current group: • None - Nothing is blocked. Use th is to create the least restric- tive group. • Block all Internet access - All traffic via the WAN port is blocked.
Broadband Router User Guide 50 Group Members Screen This screen is displayed when the Members button on the Access Control screen is clicked. Figure 34: Group Members Use this screen to add or remove m embers (PC s) from the current group.
Advanced Features 51 Default Schedule Screen This screen is displayed when the Define Schedule button on the Access Control screen is clicked. • This schedule can be (optionall y) applied to any Access Cont rol Group. • Blocking will be performed dur in g the scheduled time (between the "Start" an d "Finish" times.
Broadband Router User Guide 52 Services Screen This screen is displayed when the Edit Service List button on the Access Control screen is clicked. Figure 36: Access Control - Services Data - Services Screen Available Services Available Services This lists all the available services.
Advanced Features 53 Cancel Clear the " Add New Service " area, ready for entering data for a new Service. Access Control Log To check the operation of the Access Control feature, an Access Control Log is provided. Click the View Log button on the Access Control screen to view this log.
Broadband Router User Guide 54 Dynamic DNS This free service is very usef ul when combined with the Virtual Server feature. It allows Internet users to connect to your Vi rtual Serv ers using a URL, rather than an IP Address. This also solves the problem of having a dynami c IP address.
Advanced Features 55 • Details of your DDNS account (Name, password, Dom ain name) must then be entered and saved on t his screen. • This device will then automatically ensure that yo ur current IP Address is recorded by the DDNS Service Provider.
Broadband Router User Guide 56 Advanced Internet Screen This screen allows configuration of all advanced features relating to Internet access. • Comm unication Applicat ions • Special Applications • Multi-DMZ • URL filter An example screen is shown below.
Advanced Features 57 Communication Applications Select an Application This l ists applicati ons which may generate incomi ng connections, where the destination PC (on y our local LAN) is unknown.
Broadband Router User Guide 58 Data - Special Applications Screen Checkbox Use this to Enable or Disab le this Special Application as requ ired. Name Enter a descriptive name to identify th is Sp ecial Application. Incoming Ports • Type - Select the protocol (TCP or UDP) used when you receive data from the special application or service.
Advanced Features 59 The "DMZ PC" is effectively outside the Firew all, mak- ing it more vulnerable to attacks. For this reason, y ou should only enable the DMZ feature when required. URL Filter The URL Filter allows you to block access to undesirable Web site • To use this feature, you must define "filter string s".
Broadband Router User Guide 60 Buttons Delete/Delete All Use these buttons to d elete the selected entry or all entries, as req u ired. Multiple entries can be selected b y holding dow n the CTRL key while selecting.(On the Macintosh, hol d the SHIFT key while selecti ng.
Advanced Features 61 Virtual Servers Screen The Virtual Servers screen is reached by the Virtual Servers link on the Advanced screen. An example screen is shown below. Figure 42: Virtual Servers Screen This screen lists a num ber of pre-defined Servers, and allows you t o define your own Servers.
Broadband Router User Guide 62 External Port No. The port num ber used by Internet users when connect ing to the Server. This is normally the same as the Internal Port Number.
Advanced Features 63 From the Internet, ALL Virtual Servers have the IP Address allocated by y our ISP. Connecting to the Virtual Servers Once configured, anyone on the Internet can conn ect to your Virtual Se rvers. They must use the Internet IP Address (the IP Address allocat ed to you by your ISP).
Broadband Router User Guide 64 WAN Port Configuration The WAN Port option is on the Advanced m enu. Figure 43: WAN Port Screen Data – WAN Port Screen Identification Hostname Normally , there is no need to change the default nam e, but if your ISP requests that you use a particul ar Hostname, enter i t here.
Advanced Features 65 Specified IP Address Also called Static IP Address. Select this if you r ISP has allocated you a fixed IP Address. If this option i s selected, the following dat a must be entered. • IP Address The IP Address allocated by the ISP.
Broadband Router User Guide 66 Connection Behavior Select the desired option: • Automatic Connect/Disconnect An Internet connection is au tomatically made when required, and disconnected when idle for the tim e period specified by the "Auto-disconnect Idle Tim e-out".
67 Chapter 7 Advanced Administration This Chapter explains the settings avail able via the "Administration" section of the menu. Overview Normally, it is not necessary to use these scr eens, or change any settings.
Broadband Router User Guide 68 Config File This feature allows you to downl oad the current settings from the TW100-BRF114U, and save them to a file on your PC. You can restore a previously-downloaded confi guration file to t he TW100-BRF114U, by uploading it to t he TW100-BRF114U.
Advanced Administration 69 Logs The Logs record various types of activit y on the TW100-BRF114U. This data i s useful for troubleshooting, but enabling all l ogs will generate a large amount of data and adversely affect performance.
Broadband Router User Guide 70 Timezone Select the correct Timezone for y our locat ion. This is required for the date/time shown on the lo gs to be correct. E-Mail Reports Send E-mail alert If enabled, an E-mail will be sent immediately if a DoS (Denial of Service) attack is detected.
Advanced Administration 71 Network Diagnostics This screen allows you to perform a "Ping" or a DNS lookup. These activities can be useful in solving network problem s.
Broadband Router User Guide 72 Options This screen allows advanced users to enter or change a number of sett ings. For normal opera- tion, there is no n eed to use this screen or change any settings.
Advanced Administration 73 Allow Internet access to be disabled • If checked, then UPnP users can disable Internet access via this device. • If Disabled, UPnP users can NOT disable Internet access via this device. But currently, t his restriction onl y applies to users running Windows XP, who access the Properties via UPnP.
Broadband Router User Guide 74 PC Database The PC Database is used whenever you need to select a PC (e.g. for the "DMZ" PC). It elimi- nates the need to enter IP addresses. Also, y ou do not need to use fixed IP addresses on your LAN. PC Database Screen An example PC Database screen is shown below.
Advanced Administration 75 Data - PC Database Screen Known PCs This lists all current entries. Data displayed is name (IP Address) type . The "type" indicates whether the PC is connected to the LAN. Name If adding a new PC to th e list, en ter its name here.
Broadband Router User Guide 76 PC Database (Admin) This screen is display ed if the "Advanced Admini stration" button on t he PC Database is clicked. It provides m ore control than the standard PC Database screen. Figure 49: PC Database (Admin) Data - PC Database ( Admin) Screen Known PCs This lists all current entries.
Advanced Administration 77 MAC Address Select the appropriate option • Automatic discovery - Select this to have the TW100-BRF114U contact the PC and find its MAC address. This is only possi ble if the PC is connected to the LAN and powered On. • MAC is - Enter the MAC address on the PC.
Broadband Router User Guide 78 Remote Admin If enabled, this feature allows y ou to manage the TW100-BRF114U vi a the Internet. Figure 50: Remote Administration Screen Data - Remote Administration Screen Remote Administration Enable Remote Management Enable to allow management via the Internet.
Advanced Administration 79 Routing Overview • If you don't have other R outers or Gateways on your LAN, y ou can ignore the "Routing" page completely. • If the TW100-BRF114U is only acting as a Gat eway for the local LAN segm ent, ignore the "Routing" page even if your LAN has ot her Routers.
Broadband Router User Guide 80 Figure 51: Routing Screen Data - Routing Screen RIP Enable RIP Check this to enabl e the RIP (Routing Inform ation Protocol) feat ure of the Broadband Router. The TW100-BRF114U supports RIP 1 only. Static Routing Static Routing Table Entries This list shows all entries in the Routing Tab le.
Advanced Administration 81 Properties • Destination Network - The network address of the remote LAN segment. For standard class "C " LANs, the network address is the first 3 fields of the Desti nation IP Address. The 4th (last) field can be left at 0.
Broadband Router User Guide 82 Other Routers on the Local LAN Other routers on the local LAN m ust use the TW100-BRF114U's Local Router as the Default Route . The entries will be the same as the TW 100-BRF114U's local router, with the exception of the Gateway IP Address .
Advanced Administration 83 Gateway IP Address 192.168.0.1 (Broadband Router' s IP Address) For Router B's Default Route Destination IP Address 0.
Broadband Router User Guide 84 Security This screen allows you to set Firewall and other security-related option s. Figure 53: Security Screen Data - Security Screen Firew all Enable DoS Firewall If enabled, DoS (Denial of Service) attacks will be detected an d blocked.
Advanced Administration 85 Options Respond to ICMP The ICMP protocol is used by th e "ping" and "traceroute" programs, and by network moni toring and diagnostic program s. • If checked, the TW100-BRF114U w ill repond to ICMP packets received from the Internet.
Broadband Router User Guide 86 Upgrade Firmware The firmware (software) in t he TW100-BRF114U can be upgraded using your Web Browser. You must first downl oad the upgrade file, then select Upgrade on the Administration menu. You will see a screen like the follo win g.
87 Appendix A T roubleshooting This Appendix covers the most likely probl ems and their solutions. Overview This chapter covers some comm on problems that m ay be encountered whil e using the TW100- BRF114U and some possi ble solutions to them .
Broadband Router User Guide 88 Solution 2: The TW 100-BRF114U processes the data passing through it, so it is not transparent. Use the Special Applicati ons feature to allow the use of Internet appli cations which do not function correct ly. If this does solve the problem you can use the DMZ function.
Appendix A - Troubleshooting 89 4. The printer wizard will display a message stating th at “Th e Network Printer is off-line”. This is OK. Continu e th e Add Printer Wizard un til finished. 5. When finished, go to Control Panel-Printers . The prin ter icon will be grayed out indicati ng the printer is not ready .
Broadband Router User Guide 90 8. Click OK to see the Print Port Con fig uration screen, as shown below. 9. Click the Browse Device button, select the desired TW100-BRF114U, and click OK. 10. Click OK to return to the Printers fold ers, and right-click on th e Printer.
91 Appendix B Specifications Multi-Function TW100-BRF114U Model Broadband Router TW100-BRF114U Dimensions 140mm(W) * 99mm (D) * 27m m(H) Operating Temperature 0 ° C to 40 ° C Storage Temperature -10.
Broadband Router User Guide 92 Regulatory Approvals CE Standards This product compli es with the 99/5/EEC di rectives, including the foll owing safety and EMC standards: • EN301489-1/-17 • EN60950 CE Marking Warning This is a Class B product .
Appendix B - Specifications 93 Limited Warranty TRENDware warrants its products against def ects in material and workmanship, under normal use and service, for the following lengths of time from the date of pur- chase.
Broadband Router User Guide 94 PERSON’S MISUSE, NEGLECT, IMPRO PER INSTALLATION OR TESTING, UNAUTHORIZED ATTEMPTS TO REPAIR OR MODIFY, OR ANY OTHER CAUSE BEYOND THE RANGE OF THE INTENDED USE, OR BY ACCIDENT, FIRE, LIGHTNING, OR OTHER HAZARD.
Appendix B - Specifications 95.
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 TRENDnet TW100-BRF114U 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 TRENDnet TW100-BRF114U - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso TRENDnet TW100-BRF114U imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul TRENDnet TW100-BRF114U ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il TRENDnet TW100-BRF114U, 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 TRENDnet TW100-BRF114U.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il TRENDnet TW100-BRF114U. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo TRENDnet TW100-BRF114U 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.
