Advance IP Services and Cloud Connectivity

Douligeris, C., Serpanos, D. (2007). VPN Benefits. Network Security: Current Status and Future Directions. John Wiley and Sons

A good VPN can provide many functions such as access anywhere worldwide without dedicated lines, data security, remote access to business resources and better employee production. For these VPNs to perform these functions properly they are required to provide reliability by ensuring that the network does not break down before reaching its max capacity, scalability to ensure the ability to expand as business grows, and of

Cloud computing has set a trend in the information technology arena that has sparked the interest of all who utilize the internet on purpose and unsuspectingly. Initially, the primary purpose of cloud computing was to provide a centralized data bank that organizations could use for quick data access. Its use has been quickly adapted, however, beyond business use to become the first option for personal use. The advantages and disadvantages of implementing such a shift from business to personal are varied, yet, statistically, according to the CISCO Global Cloud Index: Forecast and Methodology, 2014-2019 White Paper, its public use is on the rise. The report notes that “by 2019, 56 percent of the cloud workloads will be in public cloud data centers, up from 30 percent in 2014 and by 2019, 44 percent of the cloud workloads will be in private cloud data centers, down from 70 percent in 2014”. Though disadvantages with regard to data security is prominent, users have deemed that its implementation will still promote greater benefits than loss.

A VPN offers mobility and security for remote workers. The VPN uses an encrypted connection using the Internet. Remote workers wanting to use the Internet file server need authenticate their identity with a login id, password, RSA token, or smart card. The VPN can be used on company-owned laptops and personal electronic devices (PEDs). The VPN works by using data encapsulation. Encapsulating data packets into another set of data packets and data header this is the ‘tunnel’ used to send private data through the Internet. The data reaches its destination where the data is extracted from the 'tunnel'. It is then sent to the Application Layer where the remote worker can view or retrieve the files. This is a dedicated connection between the company and the remote worker computer. It is failsafe; the data sent through the VPN is encrypted by the sender and decrypted by the receiver. This prevents the data from being altered, read, or stolen by a hacker. Different cryptographic rules on each layer of the OSI model provide secure data transmission, authentication, confidentiality, and nonrepudiation. The cryptographic tunneling rules implemented for data security in each of the OSI layers (starting with the bottom layer) are listed

As this area is highly competitive at the moment, many VPN companies are working hard to try to win customers. This means that they are all trying to be the best and you should be able to take advantage of this. There is not good price competition between the companies but also they are all trying to produce the best service as well. This means that it could be a difficult job choosing which one to use, but you should not let this put you off getting one.

Virtual private networks (VPN) provide an encrypted connection between distributed sites over a public network (e.g., the Internet). By contrast, a private network uses dedicated circuits and possibly encryption. The basic idea is to provide an encrypted IP tunnel through the Internet that permits distributed sites to communicate securely. VPN 's permit secure, encrypted connections between a company 's private network and remote users through a third-party service provider. A VPN can grow to accommodate more users and different locations much easier than a leased line. In fact, scalability is a major advantage that VPN 's have over typical leased lines (dedicated circuits). Unlike with leased lines, where the cost increases in proportion

Recent technological advancements have resulted in an increased number of Internet-enabled devices, such as tablets and smartphones that can connect to corporate systems.These systems may also be running anywhere, including a public software-as-a-service (SaaS) cloud, a

In most cases, Secure Sockets Layer Virtual Private Networks (SSL VPNs) will provide a convenient, secure way of obtaining remote access to a private network, and safely transmitting and working with data, but users need to be aware that there are some security vulnerabilities that can plague an SSL VPN in certain cases.

There are quite a number of VPN services available and each promises to deliver security and anonymity. Nevertheless, very few actually do that and most end up as a liability and not a security tool. Finding the best VPN service requires in-depth analysis of its features and performance, which is what this ExpressVPN review aims to do.

The cloud solution can simplify the complexity of existing VOIP system with virtual communication systems. It transforms the way of traditional VOIP implementations by reducing the cost of ownership and maintenance. Furthermore it extends the possibilities of plug and play feature. The intention of this paper is to discuss the case study about implementing the Cisco VOIP solution in cloud. We have made efforts to study the impact of having VOIP solutions over cloud and its advantages and governance issues with respect to the implementation.

Abstract The paper describes the overview of Dynamic Multipoint Virtual private Network (DMVPN) which is one of the tunneling technologies. With the advent of new modern era, VPN-based network are helping the businesses to send and receive sensitive data over public infrastructure which does add as a security feature. With budget as a concern for organizations, it is important for Network Engineers to not let go of the set infrastructure but also try to implement new methods to improvise as well as have backward compatibility. Typical VPN have been used as a need for connecting remote site-to-site businesses, however, with the ever growing needs it has become essential to provide a scalable as well as dynamic solution. DMVPN is one of the dynamic and scalable technologies to achieve scalability and also be dynamically evolving as per the demand. [2] I. Introduction Internet has grown rapidly over the past few years. MAN and WAN prove to be expensive due to leasing lines from Service providers. MPLS and Frame Relay have ruled the Wide Area Network over the years in providing private communication. It was needed for an intermediate solution which can provide security as well as be private. We can replace MPLS and Frame Relay with DMVPN as it uses a simple hub and spoke model similar to the one used in frame relay and also virtually separate different networks while maintaining the same infrastructure similar to what MPLS does. DMVPN is a Hub and spoke type of network. It is a

Abstract: As the development of computers, smart phones and tablets, more and more equipment are connected to the Internet. Virtual Private Network, which establishes private network over public network has made work and life much easier for people. IPSec and SSL/TLS protocols, which provide security services, are widely used for VPN. In this paper, I’ll learn the details of IPSec and TLS/SSL protocols and provide an analysis and comparison of them.

As the world progresses technology everyday, the reliance on the Internet and its uses become more and more necessary. Many people connect to hundreds of applications and devices they use every single day. Behind these applications are extremely complex networks that allow users to connect in ways that expand every single day. To achieve this, companies must design their networks for secure access and reliability to allow seamless access for users. On the back-end these companies must also have a secure network in place for their offices, remote workers, and any other remote resource to access confidential materials and other sensitive matter. This can be accomplished through a variety of WAN technologies that are used in the world today.

It discusses past years advances made so as to provide progress that has been accomplished in this area of research. There are some challenges in this area which have to be overcome. One of the important challenges is security over cloud network. There are two major categories: security issues faced by cloud providers and security issues faced by customers.

TO DESIGN A LAYER 3 MPLS VPN (Multiprotocol Label Switching Protocol Virtual Private Network ) FOR A CUSTOMER WITH DIFFERENT LOCATIONS