Remote Access Service (
RAS) allows a
client computer to
communicate over a
dial-up connection. Unlike remote control, remote access treats the connection as a low-speed
LAN connection. RAS dials the connection and negotiates the
protocol with the
server, after which RAS routes
packets or
NetBIOS calls through the host.
Remote Access Service is capable of the following:
Performs both the dial-out and dial-in hosting service.
Supports Windows NT interprocess communications.
Supports TDI-compliant protocols.
Operates over any dial-up public network/POTS medium.
Supports software transmission compression.
RAS supports the following Operating Systems and connections:
LAN Manager
Windows for Workgroups (Win3.11)
WinNT 3.51 and up
Win9x
Serial Line Internet Protocol (SLIP) for dial-out
only
Point-to-Point Protocol (PPP) for dial-in only TCP/IP clients.
RAS supports the following network interfaces:
Windows Sockets
NetBIOS
Mailslots
Remote Procedure Calls (RPC)
Win32 and LAN Manager APIs.
RAS supports the following protocols:
SLIP
PPP
TCP/IP
NetBEUI
IPX.
RAS supports the following Wide Area Network (WAN) connections:
Public Switched Telephone Network (PSTN)
Integrated Services Digital Network (ISDN)
X.25 leased-line Frame Relay.
RAS is limited to only one connection for WinNT Workstation. WinNT Server supports up to 256 connections. If you set RAS to auto-answer, it will lock the COM port and the modem. You will not be able to use the port for other services, like terminal emulaters or FAX.