IP Address Network
TCP / IP network (NETWORK) on the identification of a node (NODE) used 32-bit (BIT) digital systems, from the network identification number (NETWORK ID) and the host identification number (HOST ID) formed, in accordance with NETWORK ID and the HOST ID using the difference in the number of bits, IP ADDRESS can assign the number of: 1. CLASS A: 127 the Net, there are 16 million for each network host .2. CLASS B: 16000 the Net, each a network with 65000 hosts .3. CLASS C: 2 Ge 1 million networks, each network has 254 hosts. use this method of distribution led to a lot of addresses available is wasted, the new version of IPV6 intend to use CIDR encoding to replace the .
IP Multicast Network
A single IP packet (PACKET), through multiple-access transmission backbone network (MBONE) a simultaneous transmission to many nodes (NODE) of the technology, the information needs to be the same for broadcasting (BROADCAST) website (WEB SITE), the use of IP MULTICAST can enhance transfer rates and reducing the phenomenon of congestion, if the use of traditional IP transmission, then repeated the same information must be sent to the user by the web site, if at the same time there are many users request for information, then the transfer rate will lower the number, and also slightly less than the original Internet (INTERNET) bandwidth (BANDWIDTH) greater burden.
IP Spoofing Network
Using a false IP address and port (PORT) to fool the security management system certification approach.
IP telephony Internet Communications
Through the TCP / IP network two-way voice transmission.
Narrow sense, used in the corporate network, or WAN (Wide area network), known as VoIP (voice over IP, voice transmission via IP); if the telecommunications companies to provide or to go through the public Internet is referred to as IP telephony, or Internet telephony.
In other words, VoIP can be regarded as IP telephony (Internet communications) technology, a ring, which contains the Send a fax (FAX), the use of video and other traditional public switched telephone network (PSTN) transmission data. Internet communications concept itself a fusion of computer, telephone, television, security monitoring, lighting automation and integration of related technology trends. In practice, however, VoIP, IP Telephony or Internet telephony these terms usually can be interoperable. VoIP protocol used, including: H.323 and communications startup protocol (Session Initial Protocol, SIP). In the 1960s, first ladder data transmission are available through the telephone network for transmission, but in the late 1990s, TCP / IP networking protocol set off huge waves in the telecommunications industry, IP (network packets) became the transmission of voice, common data and video communication mode, and thus the voice data is also transferred to the web seems to be an obvious evolution.
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