is Virtual Private Network
(Virtual Private Network)
how to setup vpn, step by step instructions, how virtual
private network works, windows configurations, and hardware
and software requirement in the virtual private network.
A virtual private network is a private network that
uses public network (Internet) and maintains privacy
and security procedures through encryption and other
security procedure. VPN’s provides an alternative
dedicated private network connection for the offices
Many business around the world are using VPN to connect
their office servers from other locations such as home
etc. Virtual Private Network uses PPTP (Point to Point
Tunneling Protocol to allow Windows and Mac users to
connect to the PowerElf servers from the other locations.
provides a secure 128bit encrypted connection from the
local computer to the VPN server. In VPN, not only the
data is encrypted but the source and destination network
address is also encrypted.VPN uses internet as a medium
to connect to the remote networks and sites and allows
Private Nework is an alternative method to connecting
the office network or a LAN. Internet is a public domain
and anyone with a computer, a phone line, modem and
internet service can access it.
VPN uses a set of the security methods, such as encryption,
passwords, firewalls and other security procedures.
VPN may be composed of a number of servers and sites.The
most common Virtual Private Nework is a remote-access
VPN, which creates a secure tunnel from your computer
and your company’s server.
some cases you don’t even need to have internet
access but you only need a computer, telephone line,
modem and software, which network administrator might
have installed on your computer or you will be provided
with the instructions that how to configure PPTP.
successfully configuring the PPTP, you will be able
to dial the company’s server and access it by
creating a VPN. In Virtual Private Nework, remote computers
act as they are in the same and secure local network.
There are a number of advantages and disadvantages of
the VPN connections.
It allows and makes you able to connect and access your
company’s computer, while you are at your home
or other remote location. This is the same way as you
access your company’s computers in your office.
• It is almost impossible for someone to interfere
or intrude in your VPN network tunnel
• You can even connect to your company’s
network from all over the world if you have installed
and configured VPN client software on your laptop.
The setup of the Virtual Private Nework connections
is comparatively more complicated than the normal network
connections. VPN can work around the network products
of different companies but connecting to a non-NETGEAR
product will add some difficulty.
will have to follow the company’s own policies
and procedures while connecting to its network through
VPN. VPN goes between a computer and network or a local
LAN and a remote network using routers. Each end of
the connection is an VPN endpoint. The connection between
the two VPN networks is called VPN tunnel.
NETGEAR router supports VPN pass through. Pass through
means that a router does not stop VPN traffic. The purpose
of VPN is to prevent the data between two computers
or networks being altered.
The whole purpose of VPN is to prevent data being altered,
so, for example, a pass through router that is also
running NAT will break the VPN connection.
setting up the Virtual Private Nework connection you
need the basic equipment and the VPN account from your
Internet Service Provider. The latest operating systems
like Windows 2000, Windows 2003 server or professional
does not require the separate VPN client software. But
if you have old operating systems like Windows 95/98,
you will require additional software for VPN.
PC with the processor speed of more than 300 MHZ.
• RAM: 128MB although 64 MB is the minimum support
but it may limits many features and of VPN.
• 1.5 GB available disk space.
• A dial up, cable modem, ISDN or any type of
modem is required. The modems with more speed and good
for faster transfer of data.
Any Virtual Private Nework client software.
will require a VPN account with your ISP with a password
and dedicated IP address for the security connection
and encryption purposes.
Private Nework Accessories
increasing number of businesses are opting for the VPN
solutions. Different vendors are adding the different
functionalities in the hardware and software such as
encryptors in the hardware. Some are adding security
and firewall related capabilities both in software and
Private Nework Working
are many aspects of the working of the VPN and it depends
on the software, hardware and the architecture of the
VPN connection. Each VPN connection type has it own
features with respect to security, scalability and quality
of service. There are 2 main types of the VPN connections
such as individual computer to LAN and LAN to LAN connections.
purposes of the protocol involves in VPN are as follows.
• The encryption of data at the sending end.
• Creation of a tunnel where data in the form
of packets is encapsulated in the form of TCP/IPnetwork.
The decryption of the data at the receiving end.
• Other security measures included password security,
firewall and the encryption of the host and remote computers
or networks IP address.