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. …show more content…
With frame relay the user only has to pay for the local loop and the allotted bandwidth they purchased. Since these loops are shared between many users the cost is reduced. Frame Relay provides a better alternative because it only requires a single point of access. From that point of access the Frame Relay allows the sites to connect together. On top of the overall cost, it is also much simpler to configure which results in less overhead yet again. The connections were simpler to establish because Customer Service Equipment or CPE would be configured and linked to the ISPs Frame relay switch. This allowed end user configuration management to be simple and straightforward. Besides cost savings, Frame relay is also more reliable and provides more bandwidth than private/leased lines. Frame relay provides greater flexibility versus leased lines by using Virtual Circuits or VCs. As communication is desired between locations, a connection to a Virtual Circuit is formed. In this process each end point connection uses a Data Link Connection Identifier or DLCI which acts as an “address” for the end point. Data sent through the relay is taken from the network layer of the OSI model and is then encapsulated through the data portion of the frame relay frame. Once this is done, the frame is then sent to the physical layer for delivery. Within the packet there will be an address field that includes the DLCI and checksum to show where the packet needs to go. Another alternative to a
In this modern day and age of computing, networks are a huge part of IT. It is important now more than ever that data sent over any network, whether it be a LAN (Local Area Network) or WAN (Wide Area Network; The Internet) is kept safe, private (when required) and uninterrupted in
Identify hardware and software needed to secure your choice of networks against all electronic threats.
Whenever the frames are being sent over the network they have to be know from which Vlan they are being sent from so that the bridges that are present across can send them only to the specific address rather then all the output ports that are present. To identification of the receiver ports are done with the help of tag header that is added to the frame. The additional features of the tag header are as follows:
A communications protocol characterizes the guidelines for sending pieces of information starting with one hub in a system then onto the next hub. Conventions are regularly characterized in a layered way and give all or part of the administrations indicated by a layer of the OSI reference show. A convention characterizes the operation of the convention and may likewise propose how the convention ought to be actualized. It comprises of three sections:
The best network design to ensure the security of Corporation Techs internal access while retaining public Web site availability consists of several layers of defense in order to protect the corporation’s data and provide accessibility to employees and the public.
When businesses provide computers for public use, several challenges are presented. In addition to allowing the general public this service, and ultimately growing their market share, a business must define the line between appropriate use and securing the network.
Security is almost certainly the most difficult aspect of a network to perfect. It is important to have the correct procedures and components in place to make certain network security is being accounted for and addressed on any given network. The journal, “Future Generation Computer Systems” elaborates on this necessity for an information system. “Future Generation Computer Systems”, this component of a network is discussed thoroughly. “Essentially securing an Information System (IS), involves identifying unique threats and challenges which need to be addressed by implementing the appropriate countermeasures” (Dimitrios Zissis, Dimitrios Lekkas, 2012). This was achieved through configuring access lists as well as CHAP configuration on the routers connecting to the edge
The public facing servers used to connect the internal webserver to the customer website are contained within the demilitarized zone. Due to the demilitarized zones proximity to the wide area network, we will be taking a layered security approach. There will be a statefull firewall located between the router and the demilitarized zone. This firewall will protect the internal network via the LAN-to-WAN connection by performing in-depth packet inspection and closely
Provide at least 3 examples of Network Architecture Controls that help enforce data access policies at LAN-to-WAN Domain level.
Undoubtedly, this paper will generate network information, diagrams, and/or tables; accordingly, these are all included in the Appendix section of the paper. Moreover, the training, vulnerability assessment, and SAQ results are also included as an Appendix in the final paper. Finally, fearing disclosure of proprietary information that could compromise network security, all project data are scrubbed and sanitized to remove sensitive information.
The vulnerabilities of wireless networking may involve the attack of web browsers, on-line banking, DNS servers, and routers exchanging routing table updates, purchases, transactions or stolen personal data. The lack of security with a wireless system may result in denial of service, hijacking, fake impersonation, or eavesdropping for interception of messages through cyber-crimes. Each communicating user should select the language of cryptography, agree and share the symmetric key. The best security practices includes firewalls, intrusion detection systems, secured and updated applications, transport, configured properly working network, and link layers.
contains the case narrative, related figures, and a set of questions and problems. These do not have one unique solution. There are too many alternatives when dealing with LANs, WANs, MANs, BNs, and the Internet, so a reallife network design and development problem can have several workable answers.
The Newton Ad Agency will be using a Wide Area Network (WAN) network since its connectivity needs to span over a number of locations. The WAN connection should be able to provide the likeness of a Local Area Network (LAN) connection in regards to performance for the branch offices, support several applications, and have a high performance. The headquarters and two branch offices will use a Virtual Private Network (VPN) connection to the internet and require at least two routers, security gateways, and Ethernet switches at all three locations. All of these devices will be connected with full mesh WAN connections that tie to the Austin headquarters with the utilization of both Internet and private WAN connectivity. This type of connection will allow for Voice over Internet Protocol (VoIP) and video services to be supported and can accommodate both wired and wireless LAN infrastructures. The network will be implemented with the
The current architecture of the Riordan Manufacturing Company Inc. Wide Area Network and network security in place requires updated documentation. The purpose of this paper is to gather the existing information into a single format and evaluate the WAN and security documentation for an executive overview.
Local area networks (LANs). DEFINITION The concept of local area networks (LANs) is not new. It represents a logical development of computer technology. With the advent of microcomputers in the 1980s many office workers began bringing their own disks into work, compromising data integrity.