Manuale d’uso / di manutenzione del prodotto NP25G 6C del fabbricante Compex Technologies
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© Copyright 2007 Compex Systems Pte Ltd All Rights Reserved This document contai ns information, which is protected b y copyright. Reproduction , ad apt at io n o r t ra ns lat io n w it ho ut pr ior pe rm iss io n is p ro hib it ed , exc ept as al lo we d u nd er t he copyright laws.
FCC Compliance Statement: This device compli es with Part 15 of th e FCC Rules. Operati on is su bje ct t o t he fo llo w ing tw o co nd it ion s: This device may not caus e harmful interference, and Th is d e vic e m us t a cc ep t a ny int e rf ere n ce rec ei ve d, inc lu din g in te r fer en ce th at ma y c au se undesired operation.
Table of Contents OVE RVI E W T H E PR ODU C T .............................................................. 1 Intr oduct ion ................................................................................................... 1 Fea ture s ...........
Con figur e Vir tual Serve r Base d on DM Z Hos t ...................................... 58 Con figure Virt ual S ervers Based o n Port Forwa rding ......................... 60 Con figure Virt ual S erver B ased o n IP For war ding ...................
Page 1 Overview the Product Introduction NetPassage NP25G is a high-perfo rmance and low-cost IEEE802.11b/g Router using the latest AR5007 te chnology. Using Atheros System-on- Chip (SoC) solut ion, NP25G supports high-speed data transmission of up to 54Mbps.
Page 2 Features Key Features Bandwidth Control Available in Routing Mode, this fe ature gives the administrator the ability to manage the bandwidth of subscribers to prevent massiv e data transfers from slowing down the Internet access of other users.
Page 3 Universal Plug and Play (UPnP) UPnP allows you enjoy the benef its of NAT without elaborate configuration procedures. Work in g al on g sid e a n U Pn P- aw ar e operating system like Windows XP, other UPnP-enabled devices and applications can negotiate to open certain ports to traverse the NAT device.
Page 4 Virtual Private Network (VPN) pass-through The router is an advanced device that will recognize tunneled packets (IPSec , PPTP ) for VPN connections and allow them to pass through.
Page 5 Security Features Internet Access Policies: Time-based Management, URL filtering, Packet filtering To complement the powerful fire wall technologies incorporated into the router product, you can use the comprehensive set of security management features to regulate the types of Internet access permitted.
Page 6 Install the Hardware.
Page 7 Overview the LEDs Figure 1.
Page 8 Setup the Software PC Configuration Configuring PCs to be Wired to the Router The first step is to make sure the PC gets an IP address th at it will use to communicate with the route r and wi th other PCs across the network.
Page 9 Configuring PC to dynamically obtain an IP address for Windows 98SE or ME… 1. Click the Start button. Select Settings and click the Control Panel icon.
Page 10 Configure PC to dynamically obtain IP address for Windows 2K or XP 1. Click the Start button. Select Settings and click the Control Panel icon. Then double-click the Network and Dial-up Connection (Windows 2000) or Network Connection (W ind ow s XP) icon.
Page 11 Configure PC with static IP address for Windows 98SE or ME 1. To begin the Static IP address configuration, follow steps 1 & 2 of Part 1(a) to get to the page on the right. 2. Click on the IP Address tab. Then type in an IP address and Subnet Mask as 192.
Page 12 Configure PC with static IP address for Windows 2K or XP 1. To begin the Static IP address configuration, follow steps 1, 2 & 3 of Part 1(b) to get to the page on the right. 2. Select Use the following IP address , and then key in 192.168.
Page 13 Configuring PCs to be Wireless Clients The first step is similar to that of wired PCs connected to the Fast Ethernet. We have to ensure that the wi r e l e s s c l i e n t g e t s a n I P a d d r e s s that it will use to communicate with the router and other PCs across th e network.
Page 14 Configure Wireless Client for Windows XP 1. Right-cli ck on Wireless Network Connection corresponding to the wireless adapter you wish to connect with the router, and click on Properties . 2. On the dialog box presented, click the Wireless Networks tab, and click on the Add button.
Page 15 Perform Basic Router Setup In this basic setup, you will find information on how you may configure the router to function in your net work and to access the Internet. Use UConfig The powerful uConfig util ity has been developed to provide you hassle-free access to the router’s web-based config uration page.
Page 16 Step 3 : When the uConfig window is prompted, click Yes to proceed. With the router selected under Products List , click on Open Web . Cli ck on OK and you are done!.
Page 17 Access Web Interface 1. Open your web browser. At the Address bar, enter the IP address of the router, as http://192.168.168.1 and hit the Enter key.
Page 18 Setup Secured Wireless Connection Setup Secured Wireless Connection A secondary SSID which by default has no wireless security enabled is available for connection setup. This section will show how to setup a secured wireless connection like WPA-Personal security.
Page 19 Step 2: Click the Connect Anyway button when prompted. Connection to the secondary SSID ( compex-np25g ) will commence. Step 3: Click the Close button to complete the connection.
Page 20 Perform Configuration This part of the setup for the router is meant for the advanced user who requires more than the essential in formation to set up a wi red/wireless network infrastructure.
Page 21 Configure Wireless Setup The router supports wireless LAN connectivity that is fully compliant with the IEEE 802.11g and IEEE 802. 11b standards. ESSID : Enter a preferred name for the wireless network. Your wireless clients must be configured with the same ESSID (or sometimes simply referred to as SSID).
Page 22 Set Security Mode Security plays a vital role in secur ing wireless 802.11 networks to prevent unauthorised users from accessing and using the network resources. Disable Security To dis able the Secu rity mode ( not re commended), follow these instructions: Under the CONFIGURATION command menu , you will find th e Wireless Setup page.
Page 23 Setup WEP W ire d E quiv alent P rivacy is implemented i n t he network. I t is a security protocol in a wireless local area network. To set the Security mode to WEP, follow these instructi ons: You can define up to 4 WEP keys. Click Edit to set the keys.
Page 24 For ASCII key entry: 1. Select the ASCII radio button. 2. Select the radio button of the key to be entered. 3. Select the key encryption mode from the drop down menu. 4. Fill in the key value. An ASCII value can take in any alphanumeric character and is NOT case-sensitive.
Page 25 Setup WPA Follow these steps to setup the rout er for using W PA Personal, WPA2 Personal, and W PA Auto Personal. At the W W P P A A 1 1 / / 2 2 - - P P S S K K S S e e t t u u p p page, S S t.
Page 26 S S t t e e p p 4 4 : : Enter the G G T T K K ( ( G G r r o o u u p p T T r r a a n n s s i i e e n n t t K K e e y y ) ) U U p p d d a a t t e e s s . This is the length of time after which the router will automati cally generate a new shared key to secure multicas t/broadcas t traffic among all statio ns that are communicating wi th it.
Page 27 Configure the Advanced WLAN Settings Follow these steps to change the radio settings of the router. 1. Click on WLAN Setup from the CONFIGURATION menu. 2. Select Advanced . 1. Set the Beacon Interval (the time lapse between every beacon sent) to any value between 20 and 1000.
Page 28 Set Wireless Multimedia Wireless Multimedia (WMM) is a QoS (Q ual ity of Se rv ice ) st an da rd in IEEE802.11E that we have adopted to improve and support the user experience for multimedia , video, and voice applicati ons by priori tizing data traffic.
Page 29 Follow these steps to change the setup Wireless Multimedia on your router. 1. Click on WLAN Setup from the CONFIGURATION menu. 2. Select Advanced . Click WMM Settings . 1. Select to Enable Wireless Multimedia (WMM) 2. Enter the desired WMM parameters.
Page 30 WMM Parameters (for advanced users) AIFs (Arbitrary Inter-Frame Space) Arbitrary Inter-Frame Spac e is the minimum wait tim e in ter va l be tw een the wir el ess med iu m beco min g id le a nd th e s tar t of tra nsmi ssi on o f a frame over the n etwork.
Page 31 Setup WDS2 WDS2 (W ireless Distributed System 2) links up access po ints to create a wider network in whi ch mobile us ers can roam while st ill staying connected to available network resources. The wireless client and root access point has to be set up with the same channel frequency.
Page 32 Follow these steps to change the setup the root access point. S S e e t t u u p p a a c c c c e e s s s s p p o o i i n n t t 1 1 : : Click on W W L L A A N N S S e e t t u u p p from the C C O O N N F F I I G G U U R R A A T T I I O O N N menu.
Page 33 Follow these settings to setup access point 2. S S e e t t u u p p a a c c c c e e s s s s p p o o i i n n t t 2 2 : : Click on W W L L A A N N S S e e t t u u p p from the C C O O N N F F I I G G U U R R A A T T I I O O N N menu. You will see the sub-menus expanded under W W L L A A N N S S e e t t u u p p .
Page 34 C C o o n n f f i i g g u u r r e e W W D D S S 2 2 l l i i n n k k : : Click on W W L L A A N N S S e e t t u u p p from the C C O O N N F F I I G G U U R R A A T T I I O O N N menu. You will see the sub-menus expanded under W W L L A A N N S S e e t t u u p p .
Page 35 Setup Management Port Follow these steps to define the IP addresses. S S t t e e p p 1 1 : : Click on T T C C P P / / I I P P S S e e t t t t i i n n g g s s from M M a a n n a a g g e e m m e e n n t t S S e e t t u u p p from the C C O O N N F F I I G G U U R R A A T T I I O O N N menu.
Page 36 To Setup DHCP Server There are 3 DHCP Modes: • NONE Select NONE if you do not wish to use a DHCP server. • DHCP Server Select this mode to setup a DHCP server. • DHCP Relay Select this mode to setup a DHCP relay. By default, DHCP broadcast messages do not cross router interfaces.
Page 37 The following will guide you to setup the DHCP Server. S S t t e e p p 1 1 : : Click on A A d d v v a a n n c c e e d d S S e e t t t t i i n n g g s s from M M a a n n a a g g e e m m e e n n t t S S e e t t u u p p from the C C O O N N F F I I G G U U R R A A T T I I O O N N menu.
Page 38 This table descri bes the paramete rs that can be modified in DHCP Server Setup . Parameters Description The fields DHCP Start IP Address and DH CP End IP Address fields allow you to define the range of IP addresses from wh ich the DHCP Server can assi gn an IP address to the LAN.
Page 39 DHCP Lease Time This is the length of time that the cli ent may use the assigned address before having to check with the DHCP server to see if the Address is still valid. Always use these DNS servers Enable this checkbox if you only want to use the DNS server(s) you have specified.
Page 40 The following will guide you to setup the DHCP Relay. S S t t e e p p 1 1 : : Click on A A d d v v a a n n c c e e d d S S e e t t t t i i n n g g s s from M M a a n n a a g g e e m m e e n n t t S S e e t t u u p p from the C C O O N N F F I I G G U U R R A A T T I I O O N N menu.
Page 41 This table descri bes the paramete rs that can be modified in DHCP Server Setup . Parameters Description DHCP Server IP This is the IP address of the DHCP server.
Page 42 View Active DHCP Leases S S t t e e p p 1 1 : : Select M M a a n n a a g g e e m m e e n n t t S S e e t t u u p p from the C C O O N N F F I I G G U U R R A A T T I I O O N N menu.
Page 43 Reserve IP Addresses for Predetermined DHCP Clients A reserved IP address is excluded fr om the pool of free IP addresses the DHCP server draws on for dynamic IP address allocation.
Page 44 S S t t e e p p 3 3 : : Fill in: The IP Address to be reserved. The Hardware Address , in pairs of two hexadecimal values. Press the A A p p p p l l y y button to effect your new entry. The D D H H C C P P S S e e r r v v e e r r R R e e s s e e r r v v a a t t i i o o n n s s page refreshes to display the currently reserved IP addresses.
Page 45 Delete DHCP Server Reservation S S t t e e p p 1 1 : : Select the reserved IP address to delete. S S t t e e p p 2 2 : : Click on the D D e e l l e e t t e e button. The D D H H C C P P S S e e r r v v e e r r R R e e s s e e r r v v a a t t i i o o n n s s table refreshes to display your changes.
Page 46 View Statistics Follow these steps to view the WLAN detailed connecti ons statistics per WLA N st ati on. 1. Click on WLAN Setup from the CONFIGURATION menu. 2. Select Statistics . 1. Select the WLAN connection to vi ew statistics of. • Click Refresh to refresh the WLAN Connection List.
Page 47 Setup WAN A correct WAN Setup allows you to successfully share your Internet connection among the wired and wirele ss clients of the router. To do so, you need to identify the type of broadband Internet access you are subscribed to: i. Cable Internet where your ISP dynamically assigns a WAN IP address ii.
Page 48 Setup WAN for Cable Internet with Dynamic IP Assignment The router is pre-configured to support a WAN type that dynamically obtains an IP address from the ISP. However, you may ve rify the WAN settings with the following steps: 1. Under the CONFIGURATION on the command menu, click on WAN Setup .
Page 49 Note: There are exceptional cases where additi onal configuration is required before your ISP allocates an IP address to the router. b. Certain ISPs log the MAC address of the first device used to connect to the broadband channel and will not release a WAN IP address unless the MAC address matches the one in their log.
Page 50 Setup WAN for Cable Internet with Static IP Assignment If you have an ISP that leases a static WA N IP for your subscrip tion, you will need to configure your router’s WAN type accordingl y. For example, if the ISP provided you with the following setup information, you can set up your W AN as described below: IP Address : 203.
Page 51 Setup WAN for ADSL Internet Using PPPoE If you subscribe to an ADSL service usin g PPP over Ethernet (PPPoE) authenti cation, you can set up your router’s WAN type as follows . For example, you may configure an account whose username is ‘guest’ as described below: 1.
Page 52 Setup WAN for ADSL Internet using PPTP If you subscribe to an ADSL service usin g Point-to-Point Tunneling Protocol (PPTP ) authentication, you can set up your router ’s WAN type from the steps that follow.
Page 53 • The Status section gives you a summary of your connection s e t t i n g s s u c h a s : I P A d d r e s s , Network mask, and gateway IP Address.
Page 54 Setup WAN for ADSL Internet using L2TP L2TP (Layer 2 Tunneling Protocol) is an ext ension to the PPP protocol used for Virtual Private Networks (VPNs) that supports mu ltiple protocols and unregistered and privately administered IP a ddresses over the Internet.
Page 55 Configure Static Routing The router allows the network administ rator to add a static routing entry into its routing table so that the router can re-route IP packets to another network router. This feature is very useful for a network with more than one router.
Page 56 1. Under the CONFIGURATION command menu, click on Routing to be brought to the System Routing Table shown (on the right). Initially, the table will contain the default routing entries built into the router. 2. Click on the Static Routing Table button above.
Page 57 Configure NAT The basic purpose of NAT is to shar e a single public IP address when there are multiple PCs in the priv ate network by usi ng different TCP ports to identify requests coming from different PCs.
Page 58 Configure Virtual Server Based on DMZ Host When NAT is enabled, an Internet request from a client within the private network first goes to the ro uter. Up on receivin g a request, the router keeps track of which client is using which port number.
Page 59 1. Under the CONFIGURATION command menu, click on NAT . You will find the Advanced NAT Options available near the bottom of the page. 2. Click the DMZ button to configure Virtual Servers based on De- Militarized Zone host. 3. On the NAT DMZ IP Address page, you have to define the Private IP Address of the DMZ host.
Page 60 Configure Virtual Servers Based on Port Forwarding Virtual Server based on Port Forw arding is implemented to forward Internet requests arriving at the router’s WAN interface, based on their TCP ports, to specific PCs in the private network.
Page 61 4. On the following Add Port Forward Entry screen, you can set up a V irtual Server for a Known Server type by selecting from a drop-down menu OR you can define a Custom Server .
Page 62 5. For standard server applicatio ns (HTTP/FTP/POP3/Netmeeting), go to Known Server : 1. Enter the Private IP Address . 2. Pick the appropriate Server Type . 3. Enter the range in the From: and To: fields. 4. Click Add . To set up Internet applications not included under Known Server , go to Custom Server : 1.
Page 63 6. NAT S tat ic Po rt Ba se d E nt rie s reflects the new entry. To assign more servers i n your LAN: 1. Click Add . Th is w il l b rin g y ou ba ck to Ad d N ew NAT Port-Based Entry. 2. Repeat Step 3 above. To delete table entries: 1. Select the entry to delete.
Page 64 Configure Virtual Server Based on IP Forwarding When you have subscribed for more than one IP address from your ISP , you may define Virtual Servers based on IP Forwarding for which all Internet requests, regardless of ports, are forwarded to defined computers in the private network.
Page 65 Configure Bandwidth Control for WAN Bandwidth Control allows you to decide the available bandwidth in levels of 1kbi t. Follow these steps to setup Bandwidth Control for WAN. Click Bandwidth Control from the CONFIGURATION menu. Select whether to Enable or Disable Bandwidth Control and click Apply .
Page 66 Configure Bandwidth Control for LAN Bandwidth Control allows you to decide the available bandwidth in levels of 1kbi t. Follow these steps to setup Bandwidth Control for LAN. Click Bandwidth Control from the CONFIGURATION menu. Select whether to Enable or Disable Bandwidth Control and click Apply .
Page 67 Use Remote Management The advanced network administrator will be delighted to know that remote management is supported on the router. With this feature enabled, you will be able to access the router’s web-ba sed configuration pages from anywhere on the Internet and manage your home/office network remotely.
Page 68 Use Parallel Broadband The router is equipped with the exclusive Parallel Broadband technology to provide scalable Internet bandwidth with Load Balancing and Fail-Over Redundancy.
Page 69 Before you begin, ensure that each of the routers within the network is properly configured to connect to its individual broadband Internet account. Then ensure that either: • each of the routers is connected to an Ethernet port in the network as illustrated above or • the routers are wired to each other.
Page 70 Configure Email Notification The router provides this feature to notify you by email when there is a change in the WAN IP address that was supplied to you earli er. 1. Under the CONFIGURATION command menu, click on WAN Setup , and you will be brought to the following screen.
Page 71 Email address of Sender: This is the email address of the sender from whom the message will appear to come. By default, the checkbox next to Needs Authentication is n ot ticked. This option allows you to specify whether the SMTP server requires authenti cation.
Page 72 Use Static Address Translation If you use a notebook for work at the office, it is probable that you also bring it home to connect to the Intern et and retrieve emails or surf the w e b .
Page 73 Use DNS Redirection When you enter a URL in your Internet browser, the browser requests for a name-to-IP address transl ation fr om the Domain Name System (DNS) servers to be able to locate the web server hosting the website you want to access.
Page 74 1. Under the HOME USER FEATURES command menu, click on DNS Redirection. 2. Simply choose Enable or Disable for the Status of DNS Redirection . Complete the setup by clicking the Apply button. ! Note : For Internet access, please do NOT leave the DNS Server field of the PC’s TCP/ IP Properties blank.
Page 75 Setup DDNS It is diffic ult to remember the IP addresses used by computers t o communicate on the Internet. It gets even more complicated when ISPs change your public IP addre ss regularly, as is the case when the Internet connection type is Dynami c IP or PPPoE with Dynamic IP.
Page 76 DDNS List 1. Under the HOME USER FEATURES command menu, click on Dynamic DNS Setup . 2. If you have already created a list earlier, cli ck on the Refresh button to update the list. 3. To add a new Dynamic DNS to the list, click on the Add button and you will see the Choice DDNS Provider page appear.
Page 77 Select 2MyDNS as DDNS Service Provider 1. Under the Choice column in the Choice DDNS Provider check the radio button next to the 2MyDNS – DNS Service Provider . Then click on the Next button to proceed. Enter your Domain Name . Select Auto Detect to let the DDNS server learn your current WAN IP address.
Page 78 3. The new domain is added to the Dynamic DNS list table. It will appear as a hyperlink that you can click to go back to the Dynamic DNS Edit page. From this page, you can update any of the parameters, delete the domain name or reset all parameters to be blank again.
Page 79 Select DtDNS as DDNS Service Provider 1. Under the Choice column in the table of Choice DDNS Provider check the radio button next to the DtDNS . Then click on the Next button to proceed. Enter your Domain Name . Select Auto Detect to let the DtDNS s erver learn your current WAN IP address.
Page 80 Configure UPnP The following are issues that can arise when using NAT: • Some network applications assume the IP address and port that the client has been assigned are global routable values that can be used on the Internet directly.
Page 81 Although NAT traversal does not solv e all NAT-related is sues, it allows several appli cations to ru n behi nd NAT-enabled devices. It is recommended that you enable UPnP when running: • Multi-player games • Peer-to-peer connections • Real-time communicati ons • Remote Assistance 1.
Page 82 Configure Security Configure Packet Filtering As part of the comprehensive security package found on the router, you may perform IP packet filteri ng to selectively allow/disallow certain applications from connec ting to the Internet. 1. Under the SECURITY CONFIGURATION command menu, click on Packet Filtering.
Page 83 4. Click on the Add button and you will be able to define the details of your Packet Filter Rule from the screen on the right. 4a). Enter Rule Name for this new packet filtering rule. For example, Bl ockCS 4b). Enter MAC Address for this new packet filtering rule.
Page 84 A Range of TCP ports In this case, you will have to define (From) which port (To) which port, your rule applies. A Single TCP port Here, you need only specify the source port in the (From) field. Any IP por t You may here, leave both, the (From) as well as the (To) fields, blank.
Page 85 Click on the Apply button to make the new rule effective. The Filteri ng Configuration table will then be updated. 5. In this example, let us say we would like to block an application called CS from all PCs (any IP address within the network) from Monday to Friday 7am to 6pm, and this application i s using the port number 27015.
Page 86 Configure URL Filtering The router supports URL Filtering that a llows you to easily set up rules to block objecti onable web site s from your LAN users. 1. Under the SECURITY CONFIGURATION command menu, click on URL Filtering. 2. You may now define the URL Filter Type b y c l i c k i n g t h e Change button.
Page 87 Configure Firewall More than just a “NAT” firewall, t here is a powerful Stateful Packet Inspection (SPI) firewall option that can be activated on the router. Stateful inspection compares cert ai n key parts of the packet to a database of trusted information before allowing it through.
Page 88 4. You may add more firewall rules for specific security purposes. Click on the Add radio button at the screen shown above, followed by the Edit button and the screen on the left will appear. Rule Name : Enter a unique name to identify this firewall rule.
Page 89 datagrams because of congestion. Redirect Informs the host of a preferred route. Tim e exceeded Indicates that the Time-to- L i v e ( T T L ) o f a n I P d a t a g r a m has expired. Parameter Problem Informs that host that there is a problem in one the ICMP parameter.
Page 90 Check Options : This parameter refers to the options in the packet header. The available selection options are abbrev iated as follows: SEC – Security LSRR – Loose Source Routing Times tam.
Page 91 View Firewall Logs When the router’s SPI firewall is in op eration, valuable traffic patterns in your network will be captured and st ored into the Firewall Logs.
Page 92 Administer the System Use the SYSTEM TOOLS Menu Use the Ping Utility This feature lets you determine whether your router can communicate (ping) with another network host. 1. Select Ping Utility under the SYSTEM TOOLS command menu. 2. Enter the IP address of the target host where the target host you want the router to ping to.
Page 93 Set the Time The router is specially designed wi th Simple Network T ime Protocol (SNTP) compatib ility so that the ro ut er’s clock can be synchronized with that of the managing computer. T he router’s clock is an important feature that affects all the time-based functions.
Page 94 Upgrade the Firmware Significant ly, the ro uter is built w ith upgradability in mind. You can keep your router updated w ith the latest capabilities by means of a simple firmware upgrade obtainable from your vendor. 1. Select Firmware Upgrade under the SYSTEM TOOLS command menu.
Page 95 Settings Profile A useful feature is built into the router allowing you to save configuration profiles, especially the painstakingly crafted firewall security rules, and the intricate I P and Port settings of your Virtual Servers that effect a host of network applications.
Page 96 Reboot the System This feature serves an important functi on so that the router settings will become effective. 1. Select Reboot Router under the SYSTEM TOOLS command menu. 2. The router will prompt you to confirm your decision before executing a reboot.
Page 97 Change Your Login Password This feature serv es an impo rtant secu rity so that the router will not be misused or abused by unauthorized users. 1. Select Change Password under the SYSTEM TOOLS command menu. 2. Type in the Current Password , the New Password and allow verifi cation by keying your new password in the Confirm Password field.
Page 98 View System Information The About System page gives the ad ministrator an overview of the router customizations/settings. This is a us eful summar y of the operating parameters you have put in place. 1. Click Abo ut System under the HELP command menu, and you w ill be brought to the following System Information page.
Page 99 Appendix: Learn About Commonly Used Terms 10Base-T An IEEE Ethernet standard for 10 Mbps data transmission using unshielded twisted pair wires 100Base-Tx An IEEE Ethernet standard for 100Mbps data transmission using tw o pairs of Category 5 UTP wire 802.
Page 100 Driver A piece of sof tware developed to interface a piec e of hardware with its immediate upper-layer sof tware (i.e. operating system) so that it can be recognized and operated. DSSS D i r e c t S e q u e n c e S p r e a d S p e c t r u m i s a m o d u l a t i o n s c h e m e employed by the 802.
Page 101 the protocol allow a host to inform its local router, using Host Membership Reports tha t it wants to receive messages addressed to a specific multicast grou p. All hosts conforming to level 2 of the IP multicasting spe cification require IGMP.
Page 102 Ping Packet Internet Groper is a utilit y used to determine whether a particular network device ( IP address) is availa ble online. It works by sending out a packet to the dev ice and waiting for its response. PPPoE Point-to-Point Protocol over Et hernet is a method for t he encapsulati o n of PPP packets over Ethern et frames.
Page 103 Appendix: View the Technical Specifications Industry Standards Wi re d: - IEEE 802.3 10Base-T - IEEE 802.3u 100Base-Tx - IEEE 802.3x Flow Control Wi re le ss : - IEEE 802.
Page 104 WPA2-Personal WPA-Auto-Personal External Antenna Type Detachable 2dBi antenna with SMA connector. IP Addressing All Classful/Classless subnets Built-in DHCP Server Yes DHCP Reservation Yes NA.
Page 105 Technical Support Information The warranty informati on and registra tion form are found i n the Quick Install Guide. For technical support, you may contac t Compex or its subsidiaries.
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 Compex Technologies NP25G 6C 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 Compex Technologies NP25G 6C - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Compex Technologies NP25G 6C imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Compex Technologies NP25G 6C ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Compex Technologies NP25G 6C, 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 Compex Technologies NP25G 6C.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Compex Technologies NP25G 6C. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Compex Technologies NP25G 6C 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.
