Q1: What is RAS ? is RAS and VPN the same ?
Q2: How do i determine that my computer is connected to the
right network and is getting a valid ip ?
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Answer Posted / maitreya.barmanray
What is RAS
Remote Access Services (RAS) refers to any combination of
hardware and software to enable the remote access to tools
or information that typically reside on a network of IT
devices.
Originally coined by Microsoft when referring to their
built-in NT remote access tools, RAS was a service provided
by Windows NT which allows most of the services which would
be available on a network to be accessed over a modem link.
The service includes support for dialup and logon, and then
presents the same network interface as the normal network
drivers (albeit slightly slower). It is not necessary to
run Windows NT on the client - there are client versions
for other Windows operating systems.
A feature built into Windows NT that enables users to log
into an NT-based LAN using a modem, X.25 connection or WAN
link. RAS works with several major network protocols,
including TCP/IP, IPX, and NetBEUI.
To use RAS from a remote node, you need a RAS client
program, which is built into most versions of Windows, or
any PPP client software. For example, most remote control
programs work with RAS.
Over the years, many vendors have provided both hardware
and software solutions to gain remote access to various
types of networked information. In fact, most modern
routers include a basic RAS capability that can be enabled
for any dial-up interface.
is RAS and VPN the same
A virtual private network (VPN) is a private communications
network often used by companies or organizations, to
communicate confidentially over a public network. VPN
traffic can be carried over a public networking
infrastructure (e.g. the Internet) on top of standard
protocols, or over a service provider's private network
with a defined Service Level Agreement (SLA) between the
VPN customer and the VPN service provider. A VPN can send
data (e.g., voice, data or video, or a combination of these
media) across secured and encrypted private channels
between two points.
There is alot of difference in RAS and VPN ... the vpn can
be compared to a local area connection spread over a large
distance. A RAS is a truly local area connection between
two connections. A VPN is a dedicated service while RAS is
not
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