white paper template 1

VPN is referred to set up a private network across a public network and usually can be classified by three types: [1] Remote-Access Type, which can establish a connection between a client outside and a company’s internal resources, Extranet Type, which connects different resources in different networks, and Intranet Type, which creates a connection between different resources within one network. The working theory of VPN can be briefly explained by a simple example including several steps:

Global Finance Inc. uses a backbone network for its network connection. A backbone can tie multiple local area networks together for the passage of data between the individual networks and from the networks on the internet or other external network resources. The main reason for using a backbone network is to improve overall performance of a larger system by creating separate LAN’s for groups of users who communicate primarily with each other. The backbone network also makes it possible to extend the overall range of the combined systems beyond that of a single LAN. (Englander, 200, page 407)

There is a growing need to connect to internal networks from locations other than the regular and secure office. Employers and organizations need to realize that employees often need to connect to internal private networks from home, hotels, airports, etc. A solution for this problem is using a virtual private network (VPN), which is a network that uses public network paths, but maintains the security and protection of private networks. Secure communication is expensive, but VPNs allow organizations to have a number of discrete communication services for a large amount of clients. It is cheaper to have a copious amount of virtual networks on a couple physical devices than having a copious amount of physically discrete devices accomplishing the same objective.

Virtual Private Network is an association of individual machines, or virtual LAN network, which ensures the integrity and security of data transmitting. It has the properties of a dedicated private network and allows data transfer between two computers via an intermediate network such as Internet. VPN has a number of economic advantages over other methods of remote access. Firstly, users can access the corporate network, without installing with its switched connection, thus eliminating the need to use modems. Secondly, there is no need for the leased line, which helps to reduce a cost.

Site to Site VPN allows different sites of the same organization to have their own network to connect together and form a VPN. It can be hardware or software based.

The VPN connection across the Internet logically operates as a wide area network (WAN) link between the two sides.

A VPN stands for Virtual Private Network. It is a communication network in which any combination of technologies is used for securing the connection which is tunneled via an otherwise entrusted network or unsecured network. In the VPN, a dedicated connection for example leased line is not used, rather, a virtual connection is created between geographically isolated users & the

The goal of this paper is to evaluate and determine what type of connection the company will use for connecting the four individual LANs together. There are three main options that should be evaluated and considered, a T1 or T3 connection that is a leased line, a dedicated virtual private network (VPN) that will require a server at each LAN, or a basic internet connection that utilizes a demilitarized zone (DMZ).

“VPN, or virtual private network, is a network that is constructed by using public wires — usually the Internet — to connect to a private network, such as a company 's internal network. There are a number of systems that enable you to create networks using the Internet as the medium for transporting data. These systems use encryption and other security mechanisms to ensure that only authorized users can access the network and that the data cannot be intercepted. “- Vangie Beal, 2015 [8]

As one of the representatives of Corner Shop Realtor, I would like to present the advantages and disadvantages of network systems and their topology. Changing the system of data management in the company will allow the company to keep data more organised and secured, as well as give the company opportunity to expand in other fields of business.

VPN helps users working remotely to connect to the company infrastructure securely. Although it establishes the connection across the public network, user is not aware of it as it looks like data is being sent over a dedicated link. VPN connection is like a Wide Area Network (WAN) between two areas.

Most organizations develop an intranet, which is an internal network used only by company employees. It allowed all the employees to have one single access point for company resources and updates. Implementing a VPN allowed remote users to access the intranet from any location or even their homes (Tyson & Crawford, 2015).

A VPN is a supplement of an enterprise’s private Internet across a public network such as the Internet, creating a secure private connection, essentially through a private tunnel. VPNs securely convey information across the Internet connecting remote users, branch offices, and business partners into an extended corporate network.

The goal of every network designer is to develop a network with an efficiency of 99.999%. The quality of the network is defined by its reliability. The reliability of a network may be defined as the probability that a system or service will not fail over a given time

Networking and telephony is a part of our everyday environment, whether it be in our homes or in our place of business. We will somehow come into contact with one or the other in some shape or fashion. At Baker, we are no different from any other business. The infrastructure of Baker is not a simple pc and telephone setup. The network incorporates everything from a simple analog line to our data network backbone that is made of T-3 lines, ISND lines, and IPFR provided by the AT&T datacenter. Baker has 30 offices all over the country and a couple of offices in abroad