I. Explain how in transport mode, the data within an IP packet is encrypted, but the header information is not.
II. Emphasize that this allows the user to establish a secure link directly with the remote host, encrypting only the data contents of the packet. Direct learners to review Figure 8-19 for a visual reference.
III. Describe the two popular uses for transport mode VPNs:
• The end-to-end transport of encrypted data
• A remote access worker or teleworker connecting to an office network over the Internet by connecting to a VPN server on the perimeter