User manual FUJITSU LIFEBOOK P7230

[. . . ] Fujitsu LifeBook P7230 Notebook ® User's Guide Copyright Copyright & Trademark Information Fujitsu Computer Systems Corporation has made every effort to ensure the accuracy and completeness of this document. However, as ongoing development efforts are continually improving the capabilities of our products, we cannot guarantee the accuracy of the contents of this document. Fujitsu, the Fujitsu logo, and LifeBook are registered trademarks of Fujitsu Limited. Microsoft, Windows and Windows Vista are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries. [. . . ] Access point Wireless network device used to bridge wireless and wired network traffic. IP address The logical 32-bit host address defined by the Internet Protocol that uniquely identifies a computer on a network. LAN (Local Area Network) A LAN or Local Area Network is a computer network (or data communications network) which is confined to a limited geographical area. MAC address (Media Access Control Address) A MAC address (also called an Ethernet address or IEEE MAC address) is the 48-bit address (typically written as twelve hexadecimal digits, 0 through 9 and A through F, or as six hexadecimal numbers separated by periods or colons, e. g. , 0080002012ef, 0:80:0:2:20:ef) which uniquely identifies a computer that has an Ethernet interface. MTU (Maximum Transmission Unit) The maximum size of data which can be transmitted at one time in networks including the Internet. In an environment whose maximum size of data is too large to correctly receive data, normal communications can be restored by setting the size of MTU to a smaller value. Network key Data that is used for encrypting data in data communication. The personal computer uses the same network key both for data encryption and decryption, therefore, it is necessary to set the same network key as the other side of communication. Network name (SSID: Security Set Identifier) When a wireless LAN network is configured, grouping is performed to avoid interference or data theft. In order to improve security, the network key is set allowing no communication unless "Network name (SSID)" coincides with the network key. Open system authentication Null authentication method specified in the 802. 11 standard that performs no authentication checks on a wireless client before allowing it to associate. PPPoE (Point to Point Protocol over Ethernet) A method of allowing the authentication protocol adopted in telephone line connection (PPP) to be used over an Ethernet. Ordered data communication is allowed by making all conditions required for communication including the method of data transmission/reception and actions upon communication errors into procedures. 62 W i r e l e s s L A N U s e r 's G u i d e Shared key authentication 802. 11 network authentication method in which the AP sends the client device a challenge text packet that the client must then encrypt with the correct WEP key and return to the AP. If the client has the wrong key or no key, authentication will fail and the client will not be allowed to associate with the AP. Shared key authentication is not considered secure, because a hacker who detects both the clear-text challenge and the same challenge encrypted with a WEP key can decipher the WEP key. SSID (Service Set Identifier) Service Set Identifier, a 32-character unique identifier attached to the header of packets sent over a WLAN that acts as a password when a mobile device tries to connect to the BSS. The SSID differentiates one WLAN from another, so all access points and all devices attempting to connect to a specific WLAN must use the same SSID. A device will not be permitted to join the BSS unless it can provide the unique SSID. Because the SSID is broadcast in plain text, it does not supply any security to the network. Subnet mask TCP-IP network is controlled by being divided into multiple smaller networks (subnets). IP address consists of the subnet address and the address of each computer. Subnet mask defines how many bits of IP address comprise the subnet address. [. . . ] Expand Local Policies, expand Security Options, and double-click Network Access: Sharing and Security Model for Local Accounts. The correct setting should be Classic - Local Users Authenticate as Themselves. Cannot add a User with a Blank Password to OmniPass If you experience difficulties adding a user with a blank password to OmniPass, you may need to adjust your local security settings. First attempt the procedure explained in the Cannot add Windows user to OmniPass section. [. . . ]