Your network configuration is shown in the diagram. Host 1 and host 6 need to communicate. A VPN tunnel is established in order that the communication can be encrypted. Which of the following are the correct steps of communication between host 1 and host 6 using the VPN tunnel?
1) A packet leaves the source host and reaches the gateway
2) The gateway encrypts the packet
3) The packet goes down the VPN tunnel to the second gateway. In actual fact, the packets are standard IP packets passing through the Internet. However, because the packets are encrypted, they can be considered as passing through a private “virtual” tunnel
4) The packet is delivered in the clear to the destination host. From the hosts perspective, they are connecting directly
5) The second gateway decrypts the packet
A.
1,2,3,4,5
B.
1,2,5,3,4
C.
1,2,5,4,3
D.
1,2,4,3,5
E.
1,2,3,5,4