Routing and Remote Access Service
Routing and Remote Access Service (RRAS), a Microsoft API that makes it possible to create applications to administer the routing and remote access service capabilities of the operating system. RRAS makes it possible for a computer to function as a network router, and developers can also use RRAS to implement routing protocols. The RRAS server functionality follows and builds upon the Remote Access Service (RAS). [Adapted from MSDN Library]
See also Remote Access Service (RAS).