S-72.1120 Data Communications and Protocols
Study questions

Case 2 : Virtual Private Network

Ethernet and how it works?
What service does it provide to the application?
What is usually transmitted as payload of an Ethernet frame?
The relationships of TCP, IP and a local Ethernet?

Ethernet and virtual Ethernet - what is similar?
What is different?
How is it seen by an ordinary user?
How is a frame passed to a remote part of the virtual Ethernet?
Which protocols are needed in the process and in which order?