Answer to Question #318096 in Computer Networks for Sahil

Question

Discuss the IPv4 Datagram with the help of suitable examples.

Answer 1

It uses 32-bit address space. An IPv4 packet is called a datagram. It is made up of a header and a data part: IPv4 header contains a 20-byte fixed mandatory part, followed by optional fields.

IPv4 addresses are written in the dot-decimal notation, which comprises of four octets of the address expressed individually in decimal and separated by periods, for instance, 192.168. 1.5. Size of the header is 20 to 60 bytes. HLEN: IP header length 4 bits, which is the number of 32 bit words in the header.