IPv4 The Internet Protocol version 4 (IPv4) is the delivery mechanism used by the TCP/IP protocols. IPv4 is an unreliable and connectionless datagram protocol. It provides no error control or flow control. IPv4 must be paired with a reliable protocol such as TCP. The Figure 20.4 shows the position of IPv4 in the suite. Data… Continue reading IPV4

Addressing mode

Four levels of addressing mode are used in an internet employing the TCP/IP protocols: physical (link) addresses, logical (IP) addresses, port addresses, and specific addresses. Relationship of layers and addresses in TCP/IP 1. Physical Addresses • The physical address, also known as the link address, is the address of a node as defined by its… Continue reading Addressing mode