Nt1310 Unit 1 Network Analysis Paper

The User Datagram Protocol (UDP) is defined for use with IP network layer protocol in the transport layer protocol. It provides a best-effort datagram service to an End System (IP host). It uses a simple connectionless transmission model with a minimum of protocol mechanism. It uses no handshaking dialogues, and thus the user's program is exposed to any unreliability of the underlying network protocol. There is no guarantee of delivery, ordering, or duplicate protection. UDP provides checksums for data integrity, and port numbers for addressing different functions at the source and destination of the datagram.

OpenVPN is an open-source software application that implements virtual private network (VPN) techniques for creating secure point-to-point or site-to-site connections and remote access facilities. OpenVPN allows authentication using certificates or username/password. OpenVPN can work in two different modes regarding encryption. It can use static encryption or Public Key Infrastructure (PKI). The advantage of static encryption is that it is very easy to configure. The disadvantage of this type setup is that if your encryption key is compromised, all VPN data can easily be decrypted. The PKI mode resolves many of the issues static encryption has. It

The goal will be to provide secure connections to all locations where Kudler is located which includes corporate headquarters and the ability to share files as a secure data transmission. Virtual Private network will be implemented to handle this task.

VPN client: A computer initiates a VPN connection to a VPN server.A VPN client can be a remote computer obtaining a remote accessVPN connection or a router obtaining a gateway-to-gateway VPNconnection.

A VPN is a secure protected network called a tunnel for communication purposes over long distances using the Internet as its means of transport. Due to the nature of the communication or transmissions that are being utilized by say a larger corporation, secure and reliable communication is a must. In the beginning these VPN connections were established using one or more dial up modems for users to access the information. Authentication was established by requiring the correct user name and password. As time went on as always things changed, new technology and advances in communication as well as equipment allowed the VPN to evolve and expand. To ensure security, the virtual tunnel is encrypted. VPNs use several protocols in order to encrypt

SSL VPN is a newer VPN technology that links an employee’s computer to a corporate network via a web browser. No client software is required, meaning a larger variety of operating systems are potentially supported. The third type of VPN is mobile, in which one of the endpoints of the tunnel is not fixed (Bridwater, 2013).

VPN is a private network that uses a public network, usually internet, to connect remote sites or users together. It uses virtual connections routed through the Internet from the business's private network to the remote site or employee. VPN is used mostly by the employees who prefer to telecommute or work away from the office. By implementing VPN, the businesses make sure the data is encrypted and can’t be read by the ones who try to intercept the data. The computers at each end of the tunnel encrypt the data entering the tunnel and decrypt it at the other end. An encryption key determines what computations to perform on data in order to encrypt or decrypt it, however, a VPN needs more than just a pair of keys to apply encryption. Hence, a

The proposed network uses UDP protocols, as to allow for constant data streaming between all clients and the server. An external ENet library inside the C++ code to allows for such protocols.

Additionally, an element of privacy is assured using ESP (UMUC 2012). The AH and ESP can be used together which enhances integrity, authentication and anti-replay. Unless if being tunneled, the ESP does not make use of the whole packet. The IP header is not protected as believed, but the IP data payload is. The ESP fields are known to be spread all over the IP packet as compared to the AH (UMUC 2012). The entire IP packet (e.g. VPN gateway) is reassembled by the security devices thus allowing the enabling of the firewall by the VPN before further processing (Toderick, 2004). The sequence number and the SPI are the main fields of the ESP header. A random 32 bits value is used in the identification of the SA by the receiver over which the inbound packet is certain. This makes the SPI field compulsory. Each packet situated on the gliding space has a sequential number assigned to it which necessitates an anti-replay protection offered by the AH.

Latest trends such as mobiles, IT-as-a-Service, Server Virtualization and the requirement to respond rapidly to developing business conditions are placing demands on the network, which cannot be handled by today’s conventional network architectures. Software-Defined Networking proposes new approach to avoid the traditional vertically integrated networking stack in order to improve the present basic network architecture by improving architectural flexibility and manageability. SDN enables “mass customization” of network operations to better support differentiated services. With this technology a single program can control the behavior of entire networks.

Secure socket tunneling protocol is another way in which information can be relayed or shared in a VPN. It is actually a new protocol which runs in client computers using windows vista as a way of accessing useful information. This protocol provides

Identify interesting traffic. This is done by the configuration of an extended ACL which will tell the IPSec to encrypt anything matching the permit command and pass anything matching the deny statement unencrypted

Virtual private network (VPN) was developed in 19XX by Stan Hanks, who build IP VPN based on TCP/IP-over-X.25 stack for CSNET. Its goal was to ensure privacies and data integrities of communication and information. Thanks to the helps of many engineers and people such as XXX decided not to patent the XXXX technology when he was in Microsoft, VPN technology was growing rapidly during the early 2000s. Over the year, its flexibilities make travelled businessmen able to connect back to their companies’ networks, it also made employees work from home possible. Although some may argue that this makes the line between home and work space less clear, others claim that it

Based on the analysis presented in the table, Comparing Technological And Operational Benefits Of SSL And IPSec VPNs, it is clear that SSL running on secured VPN connections is the best possible scenario. For an expanded

“Software Defined Networking (SDN) is an emerging network architecture where network control is decoupled from forwarding and is directly programmable”. [1]