What is the purpose of NAT-T?
- enables NAT for PC-based VPN clients
- permits VPN to work when NAT is being used on one or both ends of the VPN
- upgrades NAT for IPv4
- allows NAT to be used for IPv6 addresses
Explanation: Establishing a VPN between two sites has been a challenge when NAT is involved at either end of the tunnel. The enhanced version of original IKE, IKE version 2, now supports NAT-T. NAT-T has the ability to encapsulate ESP packets inside UDP so that the VPN tunnel can be established through a device that has NAT enabled.
Exam with this question: CCNA Security Chapter 8 Exam Answers
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