In Windows Server 2012 R2, the Remote Access server role is a logical grouping of the following related network access technologies, which are the role services of the Remote Access server role.
- DirectAccess. DirectAccess allows connectivity to organizational network resources without the need for traditional virtual private network (VPN) connections.
- Routing and Remote Access Service (RRAS). RRAS supports remote user or site-to-site connectivity by using VPN or dial-up connections. RRAS also allows you to configure a Multitenant Gateway and to route traffic between subnets.
- Web Application Proxy. Web Application Proxy provides reverse proxy functionality for web applications inside your corporate network to allow users on any device to access your web applications from outside the corporate network. Web Application Proxy pre-authenticates access to web applications by using Active Directory Federation Services (AD FS), and also functions as an AD FS proxy.
In Windows Server 2012, the Remote Access server role includes DirectAccess and RRAS and allows for centralized administration, configuration, and monitoring of DirectAccess, Routing, and VPN-based remote access services.
In Windows Server 2008, Windows Server 2003, and Windows 2000 Server, RRAS provides dial-up, VPN, network address translator (NAT), and routing services.
Windows Server 2012 R2 and Windows Server 2012 Resources