Glossary in .NET framework

Encoding Code 128 Code Set C in .NET framework Glossary

Internet Engineering Task Force (IETF) An open community of network design ers, operators, vendors, and researchers concerned with the evolution of Internet architecture and the smooth operation of the Internet. Technical work is performed by working groups organized by topic areas (such as routing, transport, and security) and through mailing lists. Internet standards are developed in IETF Requests for Comments (RFCs), which are a series of notes that discuss many aspects of computing and computer communication, focusing on networking pro tocols, programs, and concepts. Internet Group Management Protocol (IGMP) A protocol used by Internet Proto col version 4 (IPv4) hosts to report their multicast group memberships to any immediately neighboring multicast routers. Internet Information Services (IIS) Software services that support Web site cre ation, configuration, and management, along with other Internet functions. Internet Information Services include Network News Transfer Protocol (NNTP), File Transfer Protocol (FTP), and Simple Mail Transfer Protocol (SMTP). Internet Key Exchange (IKE) A protocol that establishes the security association and shared keys necessary for two parties to communicate by using Internet Pro tocol Security (IPSec). Internet Protocol (IP) A routable protocol in the TCP/IP protocol suite that is responsible for IP addressing, routing, and the fragmentation and reassembly of IP packets. Internet Protocol multicasting The extension of local area network (LAN) multicasting technology to a TCP/IP network. Hosts send and receive multicast datagrams, the destination fields of which specify IP host group addresses rather than individual IP addresses. A host indicates that it is a member of a group by means of the Internet Group Management Protocol (IGMP). Internet Protocol Security (IPSec) A set of industry-standard, cryptography-based protection services and protocols. IPSec protects all protocols in the TCP/IP protocol suite and Internet communications by using Layer2 Tunneling Protocol (L2TP). Internet service provider (ISP) A company that provides individuals or companies access to the Internet and the World Wide Web. An ISP provides a telephone num ber, a user name, a password, and other connection information so users can con nect their computers to the ISP s computers. An ISP typically charges a monthly or hourly connection fee. Internetwork Packet Exchange (IPX) A network protocol native to NetWare that controls addressing and routing of packets within and between local area networks (LANs). IPX does not guarantee that a message will be complete (no lost packets).

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Internetwork Packet Exchange/Sequenced Packet Exchange (IPX/SPX) Transport protocols used in Novell NetWare networks, which together correspond to the combination of TCP and IP in the TCP/IP protocol suite. Windows implements IPX through NWLink. IP address For Internet Protocol version 4 (IPv4), a 32-bit address used to identify a node on an IPv4 internetwork. Each node on the IP internetwork must be assigned a unique IPv4 address, which is made up of the network ID, plus a unique host ID. This address is typically represented with the decimal value of each octet separated by a period (for example, 192.168.7.27). You can configure the IP address statically or dynamically by using DHCP. For Internet Protocol version 6 (IPv6), an identifier that is assigned at the IPv6 layer to an interface or set of interfaces and that can be used as the source or des tination of IPv6 packets. IPSec policy A configuration policy that defines which traffic Internet Protocol Secu rity (IPSec) examines, how that traffic is secured and encrypted, and how IPSec peers are authenticated. iterative query A query made to a DNS server for the best answer the server can provide without seeking further help from other DNS servers. Also called a nonrecursive query. Kerberos V5 authentication protocol An authentication mechanism used to verify user or host identity. The Kerberos V5 authentication protocol is the default authentication service. Internet Protocol Security (IPSec) can use the Kerberos protocol for authentication. key In Registry Editor, a folder that appears in the left pane of the Registry Editor window. A key can contain subkeys and entries. For example, Environment is a key of HKEY_CURRENT_USER. In IP Security (IPSec), a value used in combination with an algorithm to encrypt or decrypt data. Key settings for IPSec are configurable to provide greater security.

Layer2 Tunneling Protocol (L2TP) An industry-standard Internet tunneling proto col that provides encapsulation for sending Point-to-Point Protocol (PPP) frames across packet-oriented media. For IP networks, L2TP traffic is sent as User Datagram Protocol (UDP) messages. In Microsoft operating systems, L2TP is used in conjunction with Internet Protocol Security (IPSec) as a virtual private network (VPN) technology to provide remote access or router-to-router VPN connections. L2TP is described in Request for Comments (RFC) 2661.

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