What layer of the TCP/IP (DARPA or DOD) Model does IPSec operate?
- Process (Application)
- Link (Network Interface)
- Internet (Internetworking)
The correct answer is3.
The TCP/IP model consists of 4 layers as compared to the OSI model’s seven. The layer where IPSec resides is the Internet or Internetworking layer of the TCP/IP model. This is the corresponding layer to the OSI model’s network layer (layer 3).