Summary
This chapter introduced you to two techniques for configuring IPSec:
GRE tunnels
DMVPN
The topics discussed are part of the advanced IPSec configuration. Both the overview and configuration portions of this chapter relied heavily on your thorough understanding and knowledge of concepts discussed in Chapter 19. The DMVPN feature is a recent addition to the security services offered by Cisco. It was introduced with the 12.2(13)T release of the Cisco IOS software. Be sure to check the current CCIE Security Lab equipment list to determine the likelihood of this feature appearing on your exam.
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