CompTIA Network+ Study Guide: Exam N10-006 (Comptia Network + Study Guide Authorized Courseware) by Todd Lammle

Author:Todd Lammle [Lammle, Todd]
Language: eng
Format: azw3
ISBN: 9781119021254
Publisher: Wiley
Published: 2015-04-24T04:00:00+00:00

The AH protocol within IPSec isn't compatible with networks running Network Address Translation (NAT).

IPSec works in two modes: transport mode and tunneling mode. Transport mode creates a secure tunnel between two devices end to end. This means that regardless of how many foreign networks (including the Internet) the packet traverses, it is protected. The data is protected by authentication and/or encryption. Figure 13.6 illustrates a TCP/IP packet and a TCP/IP packet in transport mode using AH. ESP can also be used with transport mode.

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