Routing and Remote Access service: A network service in Microsoft Windows Server 2008, Windows Server 2003, and Windows 2000 Server that provides the following services:

An update is available that enables Routing and Remote Access service (RRAS) servers that are running Windows Server 2008 to negotiate Internet Key Exchange (IKE) differently. This update allows these RRAS servers to use the Diffie-Hellman 2048 (DH-2048) algorithm together with the AES-256 algorithm to negotiate IKE in the Layer 2 Tunneling Protocol (L2TP).