The Routing and Remote Access service (RRAS) supports Internet Protocol version 4 (IPv4) and Internet Protocol version 6 (IPv6) network routing and remote user or site-to-site connectivity by using virtual private network (VPN) or dial-up connections.
The remote access feature provides VPN services so that users can access corporate networks securely over the Internet as if they were directly connected. Remote access also enables remote or mobile workers who use dial-up communication links to access corporate networks.
RRAS is a software router and an open platform for routing and networking. Its routing services can be used by organizations in local area network (LAN) and wide area network (WAN) environments or over the Internet by using secure VPN connections. Routing is used for multiprotocol LAN-to-LAN, LAN-to-WAN, VPN, and network address translation (NAT) routing services.