Section 6.1: Routing and Remote Access Service Features

Through RRAS, Windows Server 2003 can support a number of routing and remote access features. These


• Unicast IP routing, which is where a router forwards data packets between a two-way, point-to-point connection.

• IP Multicast, which allows for the sending, receiving, and forwarding of IP multicast traffic, which is used for online multimedia presentations. Multicast traffic is sent to a single host but is processed by multiple hosts. This is commonly used for delivering real-time data to multiple users.

Note: The Internet Assigned Numbers Authority (IANA) has reserved Class D IP addresses for multicasting. These addresses are in the through range.

• IPX router functionality through RIP for IPX, which the primary routing protocol used in IPX internetworks; Novell NetWare SAP for IPX, which is a protocol used for the collection and distribution of service names and addresses; and NetBIOS over IPX broadcast forwarding.

• AppleTalk router functionality to forward AppleTalk packets and support the use of the Routing Table Maintenance Protocol (RTMP). Windows Server 2003 supports an AppleTalk protocol stack and AppleTalk routing software so that the Windows Server 2003-based server can connect to and provide routing for AppleTalk-based Macintosh networks.

• Demand-Dial Routing, which is the routing of packets over point-to-point links and allows you to connect to the Internet, to branch offices, or to implement router-to-router VPN connections. With demand-dial routing, IP and IPX traffic can be forwarded over persistent or on-demand WAN links.

• Remote Access, allows the Windows Server 2003 computer to accept remote access, or dial-in connections from remote access clients.

• VPN Server that supports PPTP and L2TP over IPSec and accepts remote access and router-to-router, or demand-dial, VPN connections from remote access clients and calling routers.

• RADIUS Client-Server to perform centralized authentication, authorization, auditing, and accounting (AAAA) of connections for dial-up and VPN remote access and demand-dial connections. It can be used in conjunction with Windows Server 2003 RRAS and enables the use of a single or multiple vendor network of remote access or VPN equipment.

• Simple Network Management Protocol (SNMP) agent functionality with support for Internet MIB II.

• Point-to-Point Protocol over Ethernet (PPPoE), which provides a means to connect individual client computers to a service provider over a single broadband connection.

• Integrated Firewall that can be configured when the server is configured as an Internet gateway.

• Mixed Media Bridging, allows Windows Server 2003, Standard Edition or Enterprise Edition, or an Windows XP Professional to bridge between disparate segments, merging them into a single interface with a single IP address.

• Integrated 802.1x wireless security through Extensible Authentication Protocol (EAP) or Protected EAP (PEAP).

• IPv6 support via the Netsh utility.

• IAS Proxy, which permits the Internet Authentication Service (IAS) to forward Remote Access Dial-In User Services (RADIUS) requests to another IAS or RADIUS server. This feature allows you to use RADIUS for dial-in, VPN, and 802.1x wireless authentication throughout a federation of forests.