Need help writing an 10-page research paper that contains at least 8 scholarly sources. You must include a title page and reference page which are not included in the required page count. Also include the abstract from the previous assignment with this submissionVIRTUAL PRIVATE NETWORK
Introduction
Virtual.
Anything which is not real is said to be in a state of virtuality. Thus,
virtual means which is not real.
Private:
– Private means to keep something a secret from the general public.
Thus, under private network no third party interrupts this communication or
receives any data that is exchanged between them.
Network.
A network may be defined as a medium through which we communicate each
other and is set up through wires and cables.
VPN
is a network. It may be defined as a kind of network that uses public network
path but maintains the security of private network thus, maintaining the
privacy.
VPN Topology
The most basic topology consists of two main
VPN topologies:-
Meshed
Star
Meshed
VPN topology:-
Under this type of
VPN community, VPN site can create a VPN tunnel with any other site in the
community
Star
VPN topology:-
A star may be defined
as a VPN community which consists of two components namely:-
Satellite
Security
Security
Gateways.
This type of topology
is suitable when an organization needs to exchange information with networks
belonging to other external parties.
Based on OSI layers, VPN types may be
classified into three types namely:-
Data link layer
Network layer
Application Layer
Data Link Layer:-
With
this layer, two types of private networks are connected on layer two of OSI
model.
Network Layer VPN:-
VPN
uses and operate at Layer 2 and layer 3 Of OSI model. The difference between
the two is that layer 2 uses Ethernet while layer 3 uses IP.
Application Layer VPNâs
This type of layer is created to work with certain
applications. The main drawback of this type of layer is that they are not
seamless.
Layer
2 protocols which are widely used are:-
Layer 2 tunneling protocol
Point to Point tunneling protocol
Under
layer 3 the most widely used protocol includes Multi protocol label switching
protocol.
Types of VPNs
Three
types of VPN that are used are:-
Remote access VPN
Intranet VPN
Extranet VPN.
Remote access VPNsallows users to connect it anywhere and wherever whoever needed. All the
resources can be accessed by organization network as if they are physically
located in an organization
This type of network provides advantages such
as:-
Reduced
Capital cost
Easy to
use, greater scalability
Intranet VPNs, under this, virtual circuits are created between
organization offices. Advantages that may accrue include the following:-
1. Reduced
costs
2. Flexibility
3. Avoidance
of traffic.
Extranet VPN: –
The Extranet VPN is same as intranet VPN, the only difference which lies is
difference in the users.
Advantages of VPN:-
Easy to set up global operation because remote
workers allow the same.
Increasing Employee productivity:- VPN helps in
increasing the employees productivity
Improved security:- VPN helps in improving the
security by providing additional security measures
Scalability: – Any amount of capacity can be
added in VPN.
VPN in mobile
network:-
Mobile VPN is used widely for public safety. Thus,
professional who need reliable connections use mobile VPN. Thus, these networks
are used seamlessly across networks and in or out of wireless coverage areas
without losing or missing any session.
FUTURE OF VPN:-
Today more and more businesses demand higher level of network
access and expanding the network and analyzing the benefits of using internet
helps in creating a backbone for VPN.
Future of VPN industry depends on how it will enable the
customers to communicate effectively with other consumers, to create more
demand of VPN, companies must try to reduce the cost of service and operation.
Conclusion
VPN is an emerging technology and is
still in the stage of development. This is biggest advantage to businesses
because technology is developing with them and thus will help to cater to the
needs of business organization. Moving far from insecure break off of public
network, this provides a secure tool which uses internet at its gateway.
Businesses now have additional advantage of
allowing employees and workers to work from their place. VPN will also help
businesses to expand the business globally across the nation. The only thing
which is required from such technology is to reduce the cost of service
operation, its maintenance.
References:-
.webopedia.com/TERM/V/VPN.html”>http://www.webopedia.com/TERM/V/VPN.html
.techtarget.com/definition/virtual-private-network”>http://searchenterprisewan.techtarget.com/definition/virtual-private-network
.careerride.com/Networking-types-of-VPN.aspx”>http://www.careerride.com/Networking-types-of-VPN.aspx
.microsoft.com/en-us/library/cc739294(v=ws.10).aspx”>https://technet.microsoft.com/en-us/library/cc739294(v=ws.10).aspx
.wikipedia.org/wiki/Virtual_private_network”>http://en.wikipedia.org/wiki/Virtual_private_network
.business.att.com/content/whitepaper/next_generation.pdf”>http://www.business.att.com/content/whitepaper/next_generation.pdf
http://www.checkpoint.com/products/downloads/vpn-1_remote_access.pdf
http://www.cisco.com/warp/public/cc/so/neso/vpn/vpne/vpn21_rg.htm
