TCP/IP Learning 20180627-Data Link layer-ethernet

Ifconfig: View the network protocol supported by the host machine
ETH0: Ethernet Interface
Lo:loopback interface

Ethernet (ether-net) is defined as a standard published by Digital Equipment Corp., Intel Corp., and Xerox in 1982, which uses a standard known as csma/ The access method of the CD.
The TCP/IP protocol handles this situation in the following ways:
Ethernet IP Datagram encapsulation is defined in RFC894, and a host must be able to send and receive RFC894-defined datagrams.

TCP/IP Learning 20180627-Data Link layer-ethernet