Contents

What is TCP/IP?
General description of the TCP/IP protocols
The TCP level
The IP level
The Ethernet level

Well-known sockets and the applications layer
An example application: SMTP

Protocols other than TCP: UDP and ICMP
Keeping track of names and information: the domain system
Routing
Details about Internet addresses: subnets and broadcasting
Datagram fragmentation and reassembly
Ethernet encapsulation: ARP
Getting more information