An outline of the TCP/IP 4-Layer (DARPA) model and its relationship to the OSI 7 layer model.
The Physical Layer
Looks at the common wide area and local area networking protocols used for the transport of TCP/IP data. Includes descriptions of X.25, Frame Relay, ATM, PPP and Ethernet.
The Internet Layer
Details the IP addressing structure, class types, IP subnetworking and Masking. Also details the IPv4 header, fragmentation techniques and the methods used to reduce overuse of the IP pool, including CIDR and Network Address Translation. Covers related protocols such as ICMP, ARP, RARP, DHCP and DNS.
The Host-to-host Layer
Introduces the two main host-to-host layer protocols, TCP and UDP. Discusses the use of Ports and Sockets and TCP connectivity.
The Application Layer
Reviews some of the most common applicationsassociated with TCP/IP. Outlines the functions of web browsing, e-mail, SNMP, FTP and Telnet.
Introduces routing and addressing schemes and reviews some of the common routing protocols - RIP, OSPF, IS-IS and BGP.
Outlines the need for this new technology and addressing scheme and highlights the differences between IPv6 and IPv4. In particular focuses on the use of Extension headers and Quality of Service.
Voice over IP
A brief introduction to the concept of sending voice through the Internet using IP packets. Explores some of the techniques and hardware used for the process and some of the issues involved in using a VoIP service.
Internet VPN Introduction
Looks at Internet Virtual Private Networking and its features and functions. Outlines some of the components involved in the use of a VPN.