Windows 7 builds on the foundation of Windows Vista by adding new features and enhancing existing features used for connecting remote users and networks. These improvements include the following:
Support for a new tunneling protocol called Internet Key Exchange version 2 (IKEv2)
Support for Mobility and Multihoming Protocol for Internet Key Exchange (MOBIKE), an extension of IKEv2 that allows VPN connections to change their reachable addresses without reestablishing security associations (SAs)
VPN Reconnect, a new feature of Windows 7 and Windows Server 2008 R2 that uses IKEv2 and MOBIKE to provide automatic and seamless switchover of an active VPN connection whenever the underlying ...