Ethernet Network Access and IPv4 Addressing

Technically the network interface layer of the TCP/IP model is not described in the family of protocols. But an IP packet cannot travel between devices without using physical media and protocols to access that media. In this course youll review how to identify physical layer connectivity options. Youll learn three types of MAC addresses and how to identify different Ethernet frame formats and modifications. Youll also explore the header fields of Ethernet and how they are used as well as modifications of the Ethernet frame format. Finally youll learn about the use of protocol analyzers. In order for internetworking to work there has to be a way to distinguish which network a device belongs to. This is accomplished with a form of addressing called logical addressing which is presented by an IP address. In this course youll also learn the evolution of IP addressing from classical addressing through class-less addressing. Youll examine how network masking operates. Finally youll explore network address translation and the value of variable length subnet masking. This course was originally created by Global Knowledge (GK).