As it turns out, dividing IP addresses into classes A, B and C is not flexible enough. In particular, it does not make efficient use of the available…

Computer Network Tutorial

Most IP addresses today use IP version 4—we’ll talk about IP version 6 later. IPv4 addresses are 32 bits long and are usually written in “dot” notation. An…

Computer Network Tutorial

  – Application layer        – File Transfer Protocol (FTP)         – Remote Login (Telnet)         – E-mail (SMTP)    – Transport layer         – Transport Control Protocol (TCP)         – User Datagram Protocol (UDP)    – Network layer         –…

Computer Network Tutorial

TCP/IP is shorthand for a suite of protocols that run on top of IP. IP is the Internet Protocol, and TCP is the most important protocol that runs…

Computer Network Tutorial