Explanation/Reference:
Explanation:
Chapter 6 Lesson 1 p 232 - 233
Internet Key Exchange version 2 (IKEv2) support was added in Windows Server2008R2 and Windows7 to accommodate a new VPN type that supports VPN Reconnect. VPN Reconnect refers to the ability of a VPN connection to survive short interruptions in network connectivity, such as when you move from one wireless access point to another, or when you switch from a wired to a wireless network adapter. By taking advantage of features in IKEv2, even changes in IP address at the client do not drop the VPN connection or require any user actions. As soon as connectivity to the RRAS VPN server is restored, then the VPN tunnel is automatically reestablished.