Internet Basics and HTML

TCP/IP

The Internet Layer breaks data into datagrams. Examples: IP, AppletTalk, NetBEUI.

Each datagram (packet) is sent independently of the others and travels the Internet on its own path.

0	4	8	12	16	20	24	28
Version	Header Length	Type of Service		Datagram Length
Identification				Flags	Fragment Offset
TTL		Protocol		Header checksum
Source address IP
Destination address IP
Options
TCP: Source Port				TCP: Destination Port
TCP: Sequence Number
TCP: Acknowledgment Number

Function of the bits in an IP datagram packet, using TCP.

José M. Vidal .

4 of 24