Which is NOT true about tunnel mode encryption?

A.
It supports all algorithms except FWZ-1.

B.
It encrypts IP and TCP headers.

C.
It does not increase the packet size.

D.
It can be used with VPN’s that use reversed addresses.

Explanation:

: “Tunneling mode” encryption, works by encapsulating the entire packet, and adding its own
encryption protocol header to the encrypted packet. A drawback of using tunneling mode
encryption is that the packet size has been increased. This increase in the packet size degrades
network performance, however, the security of the packet is increased. See Page 7.15 of CCSE
NG Official Courseware. (VPN1-FW1 Management II NG FP-1).