3.1.4

Question 1

Basic checklist for a VPN

Answer 1

• A LAN that is connected to the internet.
• One computer outside of the LAN that is also
  connected to the internet.
• VPN client and server running on the lone machine
  and the original LAN
• Internet connection

Question 2

What is Encryption?

Answer 2

Encryption is the process of encoding data so that only a computer with the right decoder will be able to read and use it.

In a VPN, the computers at each end of the tunnel encrypt the
data entering the tunnel and decrypt it at the other end

Question 3

What is Tunneling?

Answer 3

Tunnelling involves establishing and maintaining a logical network connection (that may contain intermediate hops).

On this connection, packets constructed in a specific VPN protocol format are encapsulated within some other base or carrier protocol, then transmitted between VPN client and server, and finally de-encapsulated on the receiving side.

In a VPN, the computers at each end of the tunnel encrypt the
data entering the tunnel and decrypt it at the other end