Ericsson W25 Fixed Wireless Terminal for WCDMA/HSDPA Mobile Networks User's Guide
Ericsson W25 Fixed Wireless Terminal for WCDMA/HSDPA Mobile Networks User's Guide . Copyright © Ericsson AB 2007 - All Rights Reserved Disclaimer No part of this document may be reproduced in any form without the written permission of the copyright owner. The contents of this document are subject to revision without notice due to continued progress in methodology, design and manufacturing. Ericsson shall have no liability for any error or damage of any kind resulting from the use of this document.
. Contents 1 Introduction 1 1.1 Structure of this Guide 1 1.2 Product Overview 2 1.2.1 Indicators and Connectors 3 2 Battery 5 2.1 Installation of the Battery 5 2.2 Battery Function 5 3 SIM Authentication 6 3.1 Information Tones 7 4 Configuration and Management 8 4.1 Accessing Internal Web Pages 8 4.2 Overview Page 9 4.2.1 Changing Password 10 4.2.2 Alarms 10 4.2.3 Network Information 11 4.3 Configuration Wizard 12 4.3.1 Internet Access 13 4.3.
Contents iv 4.6.2 Whitelist 36 4.7 NAT 37 4.7.1 UPnP IGD 37 4.7.2 Application Level Gateways 38 4.7.3 Port Forwarding 38 4.8 Sharing 40 4.8.1 Printer Sharing 41 4.9 System 42 4.9.1 Configuration Backup and Restore 43 4.9.2 Restart 43 4.9.3 Software Update 43 4.9.4 Factory Reset 45 4.10 Event Log 45 5 PC Configuration 47 5.1 IP Settings 47 5.1.1 Obtaining IP Settings Automatically 47 5.1.2 Configuring Static IP Address 49 5.2 Wireless LAN Settings 49 5.
Contents 6.6 No LAN Connection 57 6.7 No Wireless LAN Connection 58 6.8 Slow or Intermittent Wireless LAN Connection 59 6.9 No Access to Network Printer 60 6.9.
Introduction 1 Introduction This chapter describes the structure of this guide and gives a brief product overview. 1.1 Structure of this Guide This User’s Guide contains information that is needed to configure and manage the Ericsson W25 Fixed Wireless Terminal (FWT). The following chapters are included: Chapter 1 – “Introduction” – provides information about this guide and gives a brief product overview. Chapter 2 – “Battery” – includes information about how to handle battery installation and charging.
Introduction 1.2 Product Overview The Ericsson W25 FWT is an advanced small office and home router with wireless Internet access. The key benefits of the product are: • Wireless Broadband Services at Reliable High Speed The Ericsson W25 uses WCDMA/HSDPA radio access to provide highspeed data capabilities to the local network. • Broad range of Voice Services The Ericsson W25 includes voice capabilities accessed over standard analog telephone line interfaces.
Introduction 1.2.1 Indicators and Connectors The Ericsson W25 is equipped with six status indicators located on the front panel of the unit. A general description of each indicator is provided in the following table (from top to bottom): Table 1 Front Panel Indicators Text Status Description Power Green Mains powered. Red Battery powered. Unlit Power is off. Green Connection to a UMTS network. Red Connection to a GSM network. Flashing Searching for a connection.
Introduction The connectors on the Ericsson W25 are positioned as shown in the following illustration: Figure 2 Connectors panel A description of each connector is provided in the table below (from left to right): Table 2 Connectors Label Description 10-28 VDC Power input for connecting the power supply adapter. Reset Button used to restore the Ericsson W25 configuration to factory default settings.
Battery 2 Battery The Ericsson W25 can be fitted with a rechargeable battery to provide redundancy in case of a power failure. When main powered, the Ericsson W25 will keep the battery charged. Note: 2.1 The battery is not fully charged when delivered. The charging time for an empty battery is about 4 hours. The battery will not charge if the environment temperature is above 40 degrees Celsius, due to over heating protection.
SIM Authentication 3 SIM Authentication The service provider provides you with a SIM card. This SIM card contains information about the subscription and is normally protected by a PIN (Personal Identification Number) and a PUK (Personal Unblock Key) code. Note: Emergency calls (i.e. 112) can always be made, even without a SIM card or the correct PIN code. Normally, you have to enter the PIN to activate the Ericsson W25 Internet and voice services.
SIM Authentication If the PUK is correct and the new PIN codes agree, you will hear the normal dial tone, which indicates that the voice service is activated and that it is possible to make phone calls. Remember the new PIN for future use. If the PUK is incorrect or the new PIN codes do not agree, you will hear the “PUK required” tone again. Repeat the “unblock SIM card” sequence above. Note: 3.
Configuration and Management 4 Configuration and Management Follow the instructions in the Quick Installation Guide to install the Ericsson W25. When the installation is finished, the Ericsson W25 internal web pages are available for configuration and status control. This chapter provides detailed information about configuration and management of the Ericsson W25 using the web pages. The Ericsson W25 supports the following web browsers: Internet Explorer® 5.0 or higher Safari® 1.3 or higher Firefox® 1.
Configuration and Management The default login user name and password are both “user”. You are recommended to change the password, see section 4.2.1 – “Changing Password”. Type user in both the User name and Password fields. Click Log In . The Overview page is displayed: Figure 4 Overview page The left-hand menu includes configuration topics described one by one in the following sections.
Configuration and Management 4.2.1 Changing Password The default Ericsson W25 login password is “user”. You are recommended to change the default password. 1. Click Change Password on the Overview page. The Change Password page is displayed: Figure 5 Change Password page 3. Type the old password in the Current Password field. If it is the first time you change password, the old password is user. 4. Type the new password in the New Password and Retype New Password fields.
Configuration and Management 4.2.3 Invalid SIM card inserted The inserted SIM card is not valid No PIN code entered No PIN code has been entered to activate the Internet and voice services. Incorrect PIN code entered The entered PIN code is not the correct one. SIM card blocked The SIM card is blocked. The PUK is required to unblock the SIM card. SIM card permanently blocked The SIM card cannot be unblocked. A new SIM card is required.
Configuration and Management - Searching Registration denied Unknown Roaming Limited Service The LAN (Local Area Network) section includes information about the following item: W25 IP Address 4.3 The LAN IP address of the Ericsson W25. Configuration Wizard The Configuration Wizard guides you step by step through the basic setup of the mobile network connection and optionally for the Wireless LAN access point. Click Configuration Wizard… on the Overview page to start the wizard.
Configuration and Management 4.3.1 Internet Access The first part of the Configuration Wizard includes Internet authentication. Depending on the current Internet service setup, the requests on authentication may differ. The service provider provides the required authentication details. Note: Only enter details that you have received from your service provider and leave other fields empty. SIM Authentication The service provider provides you with a SIM card.
Configuration and Management Unblock SIM card If three attempts have been made with an incorrect PIN, the SIM card is blocked. The PUK is required to unblock the card. Click Unblock SIM . The Unblock SIM page is displayed: Figure 7 Unblock SIM page Type the PUK in the PUK field and type a new PIN in the New PIN and Retype new PIN fields. Click OK . The Internet page is displayed. Go to the Overview page and click Configuration Wizard… to restart the wizard.
Configuration and Management Figure 8 Internet Access: APN page Type the APN(s) in the APN (2G) and APN (3G) fields on the Internet Access: APN page. Click Next to proceed. PPP User Authentication The PPP (Point-to-Point Protocol) Internet mode may require individual user authentication. Note: If you have not received any PPP Authentication details from your service provider, leave the fields empty and click next.
Configuration and Management Type the PPP user name and PPP password fields on the Internet Access: PPP User Authentication page. Click Next to proceed. 4.3.2 Wireless LAN Access The second part of the Configuration Wizard includes configuration of the Wireless LAN (WLAN). A Wireless LAN is a local network that communicates through wireless connections. Note: The wireless setup typically requires configuration of both the Ericsson W25 and the wireless clients.
Configuration and Management If you are not going to set up any Wireless LAN, just click Next on the Wireless LAN: WLAN Access Point page. The last page of the wizard, where you can review and confirm your settings, is displayed: Figure 11 Confirm page Confirm the settings by clicking Finish . Region To make sure the Ericsson W25 operates on correct radio frequencies according to local regulations, you have to state in which region you reside.
Configuration and Management Select your country domain from the Region list on the Wireless LAN: Region page and click Next to proceed. Channel Selection The maximum number of regulatory channels to use for wireless communication is 13. Available channels depend on local regulations. You can select one of the available channels yourself, or let the Ericsson W25 automatically select a channel.
Configuration and Management Figure 14 Wireless LAN: Network Name (SSID) page The network name is case-sensitive (distinguish between uppercase and lowercase letters) and can be changed to any combination of numbers (0 – 9), letters (a – z), and hyphens (-) with a maximum length of 32 characters. Type the new name in the Network name (SSID) field on the Wireless LAN: Network Name (SSID) page.
Configuration and Management Protocol (TKIP) while WPA2 encryption follows the Advanced Encryption Standard (AES). AES offers a higher level of security and is approved for sensitive corporate and government data transmission. Figure 15 Note: Wireless LAN: Authentication page Make sure that the operating system(s) and Wireless LAN interface(s) of the wireless client(s) support the selected authentication method.
Configuration and Management Figure 16 Confirm page Check the information on this page and click Finish to confirm the settings. If you select WEP (64 bit), the Wireless LAN: WEP (64 BIT) page is displayed, see Figure 17. If you select WEP (128 bit), the Wireless LAN: WEP (128 BIT) page is displayed, see Figure 18. If you select WPA, the Wireless LAN: WPA page is displayed, see Figure 19. If you select WPA2, the Wireless LAN: WPA2 is displayed, see Figure 20.
Configuration and Management Figure 17 Wireless LAN: WEP (64 BIT) page Figure 18 Wireless LAN: WEP (128 BIT) page Fill in the Encryption key field on the Wireless LAN: WEP (64 BIT) page or the Wireless LAN: WEP (128 BIT) page. Click Next to proceed.
Configuration and Management WPA/WPA2 Passphrase WPA and WPA2 authentication and encryption require a passphrase. Each device on your wireless network has to be configured with the same passphrase as the Ericsson W25. The encryption master key is derived from the passphrase and the network name (SSID) of the device. Figure 19 Wireless LAN: WPA page Figure 20 Wireless LAN: WPA2 page On the Wireless LAN: WPA or Wireless LAN: WPA2 page, type a unique passphrase in the Passphrase field.
Configuration and Management recommended that the passphrase contains at least 20 characters. Click Next to proceed. Confirming Settings On the last page of the Configuration Wizard, the Internet and Wireless LAN settings are displayed: Figure 21 Confirm page Confirm the settings by clicking Finish . 4.4 Internet The Ericsson W25 connects to the Internet through mobile (radio) communication using the UMTS (3G) network. If the UMTS network is not available, the GSM (2G) network is used as fall-back.
Configuration and Management Figure 22 Internet page The following information is displayed on the Internet page: The mobile network (UMTS or GSM) signal quality available at the Ericsson W25 location. This signal quality affects the performance of the unit. If two or more bars are green, the connection is usually acceptable. Link Status The Internet access status, either Up or Down. If the link is up, connection is established.
Configuration and Management 4.4.1 Service provider The name of, or other reference to the mobile network operator. Network registration The current mobile network registration status, which can be one of the following: - Not registered, not searching - Registered, home network - Searching - Registration denied - Unknown - Roaming - Limited Service IP Address The IP address automatically assigned to the Ericsson W25 by the mobile network. DNS 1 The IP address to the primary DNS server.
Configuration and Management The following authentication details may be required: PIN The Personal Identification Number, which is used for SIM authentication. Remember my PIN If enabled, SIM authentication is automatic and you will not have to enter the PIN in case of a system restart. APN (3G) The 3G Access Point Name, which is a reference to the UMTS Internet access point on the service provider’s network. The APN usually has the format .
Configuration and Management Figure 23 Unblock SIM page Type the PUK in the PUK field and type a new PIN in the New PIN and Retype new PIN fields. Click OK . Note: If ten attempts have been made with an incorrect PUK, the SIM card is permanently blocked, and a new SIM card is required. Changing Authentication Details If SIM authentication is verified, you cannot edit the PIN field. To change PIN, click Change PIN .
Configuration and Management 4.5 LAN The LAN (Local Area Network) configuration includes the details of the connections between the Ericsson W25 and other local devices. Figure 25 LAN page The following information and configuration options are displayed on top of the LAN page: W25 IP address The LAN IP address of the Ericsson W25. Subnet mask The subnet mask, which determines the range of IP addresses on the subnet.
Configuration and Management If you want to change the W25 IP address, make sure that the new address is not included in the DHCP server IP address range, displayed in the DHCP Server section. The default range is 192.168.1.2 – 192.168.1.100. Before you change the W25 IP address or subnet mask you also have to make sure that the DHCP server IP address range is included in the new subnet. If you want to change the subnet not to include the DHCP IP address range, you first have to disable the DHCP server.
Configuration and Management To disable the DHCP server, clear the Enable DHCP server check box. Note: If you want to configure your connected devices with static addresses, make sure that the addresses are outside the DHCP server IP address range. To change the range of available addresses, change the IP addresses in the IP address range from and IP address range to fields. Note: - The DHCP server IP address range has to be on the same subnet as the Ericsson W25 LAN IP address.
Configuration and Management 4.6 Wireless LAN A Wireless LAN (WLAN) is a local network that communicates through wireless connections. The Ericsson W25 is a WLAN Access Point (AP) for the local network providing wireless client(s) with Internet and LAN access. The WLAN settings are displayed on the Wireless LAN web page. To ensure the security of your Wireless LAN, you are recommended to change the default settings.
Configuration and Management The following settings concerning radio frequencies are displayed and possible to modify on the Wireless LAN page: Region The country domain, which is one of the following: Europe US Canada South Africa Australia New Zeeland Malaysia Singapore Radio channel The radio channel for Wireless LAN communication, either Auto (default) or 1-13. Transmit power [dBm] The radio transmission level that determines the signal strength: 0-20 Default is 20.
Configuration and Management MAC Address The MAC address of the access point of the wireless network. Network Name The name of the wireless network. Channel The radio channel used by the wireless network. RSSI The radio signal strength. Use this information to decide which channel to use for the Ericsson W25 wireless network. Click Back to return to the Wireless LAN page where you can select this channel. To avoid interference with other wireless networks, the transmit power level can be reduced.
Configuration and Management methods. Authentication is used to restrict access to the wireless network. Encryption is the translation of data into a form that cannot be easily understood by unauthorized users. The encrypted data can only be sent and received by users with access to a private encryption key. The following authentication methods are supported by the Ericsson W25: WEP WEP (Wired Equivalent Privacy) is considered to be a low security option.
Configuration and Management Select an authentication method from the Authentication list. Note: Make sure that the operating system(s) and Wireless LAN interface(s) of the wireless client(s) support the selected authentication method. If you have selected WEP (64 bit) or WEP (128 bit), type the key for encryption in the Passphrase / Key field. A 64-bit data encryption key includes 10 characters. A 128-bit data encryption key includes 26 characters.
Configuration and Management 4.7 NAT The Network Address Translation (NAT) service provides the LAN devices with Internet access. All communication from the LAN to the Internet appears to come from the IP address of the Ericsson W25. In this way, details about the local devices remain private and it is not possible to access a local device directly from the Internet. Figure 28 4.7.1 NAT page UPnP IGD The Ericsson W25 supports the Universal Plug and Play (UPnP) Internet Gateway Device (IGD) standard.
Configuration and Management 4.7.2 Application Level Gateways From a security perspective, certain Internet applications, for example FTP applications that open additional ports upon transfer, are especially problematic to handle. An Application Level Gateway (ALG) provides a translation and transportation service for such a specific application. Incoming data packets are checked against existing NAT and packet filtering rules, IP addresses are evaluated and a detailed packet analysis is performed.
Configuration and Management Adding an Instance To add a new port forwarding instance, click Add instance in the Port Forwarding section on the NAT page. The Add Portforwarding Instance page is displayed: Figure 29 Add Portforwarding Instance page Type the Protocol, NAT Port, Server IP, and Server Port fields and click Apply . Example In the following example, port forwarding is used to allow incoming access to an internal web server. Protocol: TCP NAT Port: 80 Server IP: 192.168.1.
Configuration and Management Editing an Instance To edit a port forwarding instance, click Edit in the Port Forwarding section on the NAT page. The Edit Portforwarding Instance page is displayed. To delete a port forwarding instance, click Delete in the Port Forwarding section on the NAT page. Change one or more value(s) in the Protocol, NAT Port, Server IP, or Server Port field(s) and click Apply . 4.8 Sharing The Ericsson W25 supports network printer sharing.
Configuration and Management Host name The name of the Ericsson W25 on the local network. Workgroup The name of the group of devices sharing the same resources on the local network. To change the host name or workgroup, type the new name in the corresponding field and click Apply . For information about setting up connections from a PC to a shared network printer, follow the instruction in section 5.3.3 – “Setting Up Connection to a Network Printer”. 4.8.
Configuration and Management 4.9 System The System page includes system information and management functions, used to update and restore the Ericsson W25.
Configuration and Management 4.9.1 Configuration Backup and Restore The Ericsson W25 configuration can be restored to factory default settings, see section 4.9.4 – “Factory Reset”, or to any previous configuration locally stored in a backup file. Backing Up a Configuration It is possible to back up a configuration that you want to save for future purposes. To back up a configuration, click Back Up… in the Configuration Backup and Restore section on the System page.
Configuration and Management Automatic Software Installation Automatic software update is supported through remote management. If there is a software image available for download the upgrade process is initiated. To enable automatic software update, select the Enable automatic software update check box and choose an appropriate interval from the Update poll interval [days] list. Click Apply to save the settings.
Configuration and Management The information on this page is updated every tenth second. When the upgrade is finished, click Restart to restart the Ericsson W25. To install new software from a local file, make sure that the new software file is available on your PC. Then click Browse… in the Software Update section. Follow the instructions on the screen to locate the configuration file. The selected file will be displayed in the Update the system with new software field.
Configuration and Management Each row in the log list displays the time and date when an alarm occurred, the type of alarm, and a brief statement indicating its cause. If persistent logging is enabled, the logs will remain after a system restart. To enable this feature, select the Persistent logging check box on the Event Log page and click Apply . To view only a selection of the logs in the list, select a filter level from the Display list. Available log levels are Alarm and All.
PC Configuration 5 PC Configuration The connection to the Ericsson W25 may require specific PC configuration. This chapter includes instructions on how to configure Internet Protocol (IP) settings as well as establish wireless connection(s) with the Ericsson W25. The descriptions include examples from Windows XP and 2000. If you use another operating system, refer to the system documentation or online help. 5.1 IP Settings The Ericsson W25 automatically assigns the IP settings to your PC(s).
PC Configuration 4 Select Internet Protocol TCP/IP and ensure that the check box beside the text is selected. Click Properties . 5 In the Internet Protocol (TCP/IP) Properties window, select Obtain an IP address automatically and Obtain DNS server address automatically. 6 Click OK twice to confirm your changes and close the windows, and then close the Control Panel window. Windows 2000 First, check for the IP protocol and, if necessary, install it: 1.
PC Configuration 11. Select Internet Protocol TCP/IP and ensure that the check box beside the text is selected. Click Properties . 12. In the Internet Protocol (TCP/IP) Properties dialog box, click the Obtain an IP address automatically option button. Also click the Obtain DNS server address automatically option button. 13. Click OK twice to confirm your changes and close the windows, and then close the Control Panel window. 5.1.
PC Configuration PC. The driver files and instructions on how to install them are provided together with the interface. 5.2.3 Configuring PC Access to the Ericsson W25 The configuration steps below will vary depending on both the operating system and the Wireless LAN interface installed on the PC. These steps provide a basic outline. For specific instructions, refer to the documentation provided with your Wireless LAN interface. Configure the following wireless parameters on each of the wireless PCs: 5.
PC Configuration 5.3.1 Accessing a Shared Printer If you connect an USB printer directly into your PC, the printer device type and brand will normally be automatically detected and a printer driver assigned and installed. This is not the case when using a network shared USB printer connected to your Ericsson W20/21. To access a shared printer from a PC using Windows 2000 or XP, follow the steps below: 1. Install a correct printer driver compatible with the PCs operating system.
PC Configuration 3. Click the Computer Name tab. 4. Click Change… . The Computer Name Changes window is displayed. 5. Make sure that the Workgroup name is exactly the same as on the Ericsson W25 Sharing page. If not, you have to change the workgroup either on the PC or on the Ericsson W25. 6. If you decide to change the workgroup on the PC, type the correct name in the Workgroup field and click OK . If you do not want to make any changes, click Cancel . The Computer Name Changes window is closed. 7.
PC Configuration Windows XP Follow the steps below to set up a connection to a network printer on a PC using Windows XP: 1. In the Windows task bar, click the Start button, and then click Control Panel. The Control Panel window is displayed. 2. If you are using Category View, click Printers and Other Hardware and then Printers and Faxes. If you are using Classic View, doubleclick Printers and Faxes. The Printers and Faxes window is displayed. 3. From the File menu, select Add Printer.
Trouble-Shooting 6 Trouble-Shooting This chapter describes how to solve a number of issues that could occur during installation, configuration, and use of the Ericsson W25. More information is available at www.ericsson.com/fwt. Before you try any of the methods described in this chapter, make sure that the connected cables are securely inserted and that the Power indicator on the Ericsson W25 is green. If none of the suggested methods solve your problem, you are recommended to: 1.
Trouble-Shooting 6.1 No Access to Ericsson W25 Web Pages If you cannot access the Ericsson W25 internal web pages, take the following actions to identify and solve the problem: Check that the PC is configured to obtain an IP address automatically using DHCP. If not, change the PC TCP/IP settings. For instructions, see section 5.1.1 – “Obtaining IP Settings Automatically” or the manual of your operating system.
Trouble-Shooting On the Internet page, check that the PIN field is filled in and that there is no error message beside this field. If there is a message saying Insert SIM, verify that a valid SIM card is correctly inserted and then retype the PIN code on the Internet page. If the message says Set PIN, only retype the PIN code. If the SIM blocked message is displayed, the PUK is required to unblock the card.
Trouble-Shooting 6.5 Telephony Service not Working If you cannot make or receive a call from a Phone connected to the Ericsson W25, take the following actions to identify and solve the problem: Make sure that the phone is working, for example by connecting it to a fixed line telephone network (PSTN). The phone has to be of a standard touch tone type (with DTMF keypad support). Note: Some old phones have a keypad, although they do not support DTMF.
Trouble-Shooting 6.7 No Wireless LAN Connection If you cannot access the local network from a wireless device, take the following actions to identify and solve the problem: Check that the Wireless LAN indicator on front panel of the Ericsson W25 unit is illuminated. If not, connect an Ethernet cable between the PC and the Ericsson W25 to establish a connection. The wired connection is required for the initial Wireless LAN configuration of the Ericsson W25.
Trouble-Shooting If Whitelist is enabled, make sure that the wireless client is included on this list. If the wireless client uses a static IP address, make sure that this IP address is on the same subnet as the Ericsson W25. For instructions on how to check the client’s IP address, see the operating system documentation or online help. TheW25 IP address and subnet mask is displayed on the LAN page.
Trouble-Shooting 6.9 No Access to Network Printer If you cannot access a network printer connected to the USB connector of the Ericsson W25, take the following action to identify and solve the problem: Restart Ericsson W25. Disconnect the USB device from the Ericsson W25, and then reconnect it. Make sure that the PC belongs to the same workgroup as the Ericsson W25. For instructions, see section 5.3.2. The Ericsson W25 workgroup is displayed on the Sharing web page.
Glossary Glossary 2G The second generation wireless communications technology, introducing digital voice encoding. Low speed data services are supported. 3G The third-generation wireless communications technology. 3G includes enhanced voice, data, and video capabilities, improved availability, broad bandwith and high speed. ALG Application Layer Gateway. An ALG provides a translation and transportation service for an Internet application.
Glossary DNS Domain Name System (or Service). The way that Internet domain names are located and translated into IP addresses. DTMF Dual Tone Multi Frequency. The telephone signaling method used for dialling, tele-banquing and so on. EDGE Enhanced Data rates for Global Evolution. A technology that gives GSM the capacity to handle services for the third generation of mobile telephony. EDGE provides three times the data capacity of GPRS.
Glossary IP Internet Protocol. A part of a suite of protocols that effectively defines the Internet as we know it. Specifies addressing and control information for routing data packets over networks. IP address The address of a host on the Internet, consisting of four numbers, each from 0 to 255, separated by periods, for example 192.168.1.1. An IP address consists of a network ID that identifies the particular network the host belongs to, and a host ID uniquely identifying the host itself on that network.
Glossary Protocol A set of rules governing the transmission of data. In order for a data transmission to work, both ends of the connection have to follow the rules of the protocol. PSTN Public Switched Telephone Network. The traditional, wired telephone network designed primarily for voice traffic. Public IP Address A public IP address is a globally unique number that identifies a device on the Internet. Anyone on the Internet can connect to the device using the public address. PUK Personal Unblocking Key.
Glossary TCP/IP Transmission Control Protocol / Internet Protocol. The basic protocols used on the Internet. TCP is responsible for dividing data up into packets for delivery and reassembling them at the destination. IP is responsible for delivering the packets from source to destination. When TCP and IP are bundled with higher-level applications such as HTTP, FTP, Telnet, and so on, TCP/IP refers to this whole suite of protocols. TFTP Trivial File Transfer Protocol.
Glossary Wireless A common term used to describe telecommunications in which radio waves (rather than some form of wire) carry the signal over part or all of the communication path. WLAN Wireless Local Area Network. A WLAN is a network in which a mobile user can connect to a LAN through a wireless (radio) connection. The IEEE 802.11 standard specifies the technologies for Wireless LANs. WPA Wi-Fi Protected Access. An authentication and encryption standard for wireless networks.
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