Virtual LAN Research Articles

Designing a secure campus network and simulating it using Cisco packet tracer

<span>The network is a massive part of life today. It participates not only on one side of life but in nearly every station, especially in educational organizations. The key aim of education is to share data and knowledge, making the network important for education. In particular, it is essential to ensure the exchange of information; thus, no one can corrupt it. To safe and trustworthy transfers between users, integrity and reliability are crucial questions in all data transfer problems. Therefore, we have developed a secure campus network (SCN) for sending and receiving information among high-security end-users. We created a topology for a campus of multi networks and virtual local area networks (VLANs’) using cisco packet tracer. We also introduced the most critical security configurations, the networking used in our architecture. We used a large number of protocols to protect and accommodate the users of the SCN scheme.</span>

NFV orchestration over disaggregated metro optical networks with end-to-end multi-layer slicing enabling crowdsourced live video streaming

Network infrastructure must support emerging applications, fulfill 5G requirements, and respond to the sudden increase of societal need for remote communications. Remarkably, crowdsourced live video streaming (CLVS) challenges operators’ infrastructure with tides of users attending major sport or public events that demand high bandwidth and low latency jointly with computing capabilities at the networks’ edge. The Metro-Haul project entered the scene proposing a cost-effective, agile, and disaggregated infrastructure for the metro segment encompassing optical and packet resources jointly with computing capabilities. Recently, a major Metro-Haul outcome took the form of a field trial of network function virtualization (NFV) orchestration over the multi-layer packet and disaggregated optical network testbed that demonstrated a CLVS use case. We showcased the average service creation time below 5 min, which met the key performance indicator as defined by the 5G infrastructure public private partnership. In this paper, we expand our field trial demonstration with a detailed view of the Metro-Haul testbed for the CLVS use case, the employed components, and their performance. The throughput of the service is increased from approximately 9.6 Gbps up to 35 Gbps per virtual local area network with high-performance VNFs based on single-root input/output virtualization technology.

Adaptive scheme protecting renewable‐dominated micro‐grids against usual topology‐change events

Miscoordination and faulty operation are the two main protection challenges of renewable Distributed Generations (DGs) in Distribution Networks (DNs) and Micro-Grids (MGs). Although various approaches have already been presented in the literature, none of them has proposed a solution for simultaneous impact of DN/MG reconfigurations and DGs’ protection challenges. Topology-change being a usual method in decreasing power loss or voltage deviations, it would be preferable to have an online adaptive scheme considering all protection challenges together. Hence, the ordinary overcurrent relays using the IEC 61850 protocol capabilities are utilized in an algorithm capable of definitely assigning which relays are responsible for the on-going fault and which ones are not. That is, the algorithm is applied on a peer-mode multi-agent system (MAS) structure. First, the relay agents are classified into radial and loop Virtual Local Area Networks (VLANs). When a relay detects the fault, the MAS will find the responsible VLAN and instantly isolate other VLANs, including their agents. Next, the main and backup relays using the proposed communication map are assigned within the responsible VLAN. Last, a suitable protection algorithm is applied on the selected relays, according to direction of fault current.

Implementation Of Vlan Networks On The Website In The Polda Jabar Profession And Security Unit (Propam)

The use of computer network technology as a data communication medium is increasing. The need for simultaneous use of existing resources in the network both software and hardware has resulted in various technological developments on the network itself, Along with the increasing level number of network users who want to provide maximum results both in terms of efficiency and increased network security especially to support the staffing system of a company, based on these desires various parties continue to make improvements by utilizing various techniques, especially subnetting techniques and better use of hardware (including switches), so the concept of Virtual Local Area Network (VLAN) has emerged apply by IT(Information Tecnology) PROPAM POLDA of West Java to maintain its network system and to support its staffing system and official vehicle loan systems because VLAN provide management flexibility in making separate Virtual LANs into segments or subnets that can be used to define separate locations or networks network of departments in the PROPAM POLDA JABAR environment.

Network Performance Through Virtual Local Area Network (VLAN) Implementation & Enforcement On Network Security For Enterprise

The aim of this paper was to enhance an enterprise network performance through VLAN implementation by simulating an existing LAN and rectify LAN using VLAN at, in two different scenarios. To rectify the drawbacks of existing enterprise network using virtual local area network. To simulate and compare the new (VLAN) and existing (NO_VLAN) enterprise network performance Virtual LAN technology can also be used to mitigate vulnerability surface for hackers by reducing the traffic request to servers, network visualization leads to ease of administration. There were more benefits of network virtualization through the implementation of VLAN. Thus, VLANs improved bandwidth utilization, power, speed and security. However, nowadays the high-speed network makes people to sense that network is a much more powerful tool to enhance in any business enterprise and make the company running more efficient. The main purpose of the network ability in the universities is to support learning, teaching, research and sharing of information. Unfortunately, even though the capacity of the bandwidth considered to be sufficient, the network can appear slow and inconsistent due to some factors like: the poor network design, the number of devices on the network, local network protocols (MAC Protocol) and misuse of the bandwidth by accessing to bandwidth hungry websites and applications (Dhurgham , 2018).

Pembagian jaringan komputer menggunakan virtual local area network guna mendukung perpustakaan digital

Digital libraries have been widely applied in educational institutions in Indonesia as a complement conventional libraries. The purpose of this research is to know division computer network access at the Adisutjipto Intitute of Technology (STTA) library. The research method used is a qualitative method using Prepare Plan Design Implement Operate and Optimize (PPDIOO). The result research is that people who have internet access will not be able to enter the digital library network. Computer network users who want to access digital libraries must log into the computer network that provides digital books in the library using a Virtual Local Area Network (VLAN). Making this VLAN requires a computer network infrastructure in the form of a Local Area Network (LAN) and computer network equipment in the form of a switch that can be used to configure multiple VLANs in a LAN. Some of the existing services in the library are placed on one VLAN and the digital library is placed on another VLAN. From the test results, it can be seen that between computers that provide services in the library on VLAN 2 cannot communicate via the connecting network to VLAN 1 where the digital library with website based services will be located. This is evidenced by the ping command which generates request time out information. VLANs network in the STTA library have been able to provide support for plans to improve services to members and academicians in the form of a digital library.

English

English

DESIGN AND SIMULATION OF VIRTUAL LOCAL AREA NETWORK USING CISCO PACKET TRACER

Modern local networks consist of several subscriber devices located inside the same building. Computers on the local network are interconnected using network equipment - switches. By default, all devices connected to the ports of the same switch can communicate by exchanging network packets. Computer networks of data transmission are the result of the information revolution and in the future will be able to form the main means of communication. The worldwide trend towards the integration of computers in the network is due to a number of important reasons, such as the acceleration of the transmission of information messages, the ability to quickly exchange information between users, receiving and transmitting messages (faxes, E-mail letters, electronic conferences, etc.) without leaving the workplace, the ability to instantly receive any information from anywhere in the world, as well as the exchange of information between computers of different manufacturers working under different software. A large number of broadcast packets sent by devices leads to a decrease in network performance, because instead of useful operations, the switches are busy processing data addressed to everyone at once. The situation forces us to divide such large networks into autonomous subnets; as a result, the logical structures of the network are different from the physical topologies. This article discusses VLAN technology (Virtual Local Area Network - VLAN), which allows you to divide one local network into separate segments.

Enterprise Integration Patterns in SDN: A Reliable, Fault-Tolerant Communication Framework

In today’s era, large data centers are drawn toward the two popular technologies, i.e., enterprise integration patterns (EIP) and software defined networking (SDN). The former is the combination of design patterns which integrates the new and existing business applications in an enterprise environment, whereas the latter is a rapidly evolving networking paradigm that has reshaped the large enterprise network management by introducing the programmable planes and centralized control. The promising features of EIP, i.e., asynchronous communication, reliability and that of SDN, namely, robustness, network programmability, agility, and global visibility can be merged in order to cope with growing network demands and security. In this article, we propose a communication framework that incorporates both EIP and SDN in an enterprise environment. The architecture of the propose communication framework consists of adaptive virtual local area network (VLAN) module to install and delete VLANs reactively using EIP. Furthermore, to enable communication between applications from different networks in an enterprise environment, this framework also contains a packet forwarding module where hosts IP addresses are concealed from each other. In the end, we demonstrate through simulations that how the proposed integrated design can be helpful in improving the security, efficiency, and reliability aspects of the enterprise network. As proof of concept, we also discuss the deployment of our proposed framework in IoT-based Smart Cities, which is the extension of EIP on a large scale.

Cybersecurity Risks in a Pandemic.

Cybersecurity threats are estimated to cost the world US $6 trillion a year by 2021, and the number of attacks has increased five-fold after COVID-19. Although there is substantial literature on the threats technological vulnerabilities have on the health care industry, less research exists on how pandemics like COVID-19 are opportunistic for cybercriminals. This paper outlines why cyberattacks have been particularly problematic during COVID-19 and ways that health care industries can better protect patient data. The Office for Civil Rights has loosened enforcement of the Health Insurance Portability and Accountability Act, which, although useful in using new platforms like Zoom, has also loosened physical and technical safeguards to cyberattacks. This is especially problematic given that 90% of health care providers had already encountered data breaches. Companies must implement well-defined software upgrade procedures, should use secure networks like virtual local area networks, and conduct regular penetration tests of their systems. By understanding factors that make individuals, health care organizations, and employers more susceptible to cyberattacks, we can better prepare for the next pandemic.

Implementasi Access Control List Pada Mikrotik dalam Mengamankan Koneksi Internet Koperasi Sumber Dana Mutiara

The need for information and internet access at this time is very high. To accept it is wrong only with computer networks as a medium. In a network that requires a network that has been segmented using a Virtual Local Area Network (VLAN), the application of an Access Control List (ACL) is required to be granted access rights for each device in the network. The Access Control List (ACL) can filter the data traffic of a network by controlling whether the packets are passed or issued. A network is built using several different network devices, one of which is a router. A router is a tool that can process different data packet networks (between networks) through a process called routing. lots of companies that produce routers, mikrotik is one of the companies that produce routers. mikrotik is easy to do because it uses Winbox in Gui's view, besides that the hotspot server in it is provided with several management facilities that can be arranged according to network requirements

IMPLEMENTASI VIRTUAL LOCAL AREA NETWORK DENGAN SWITCH PORT PADA PT. MAXINDO MITRA SOLUSI JAKARTA

PT. Maxindo Mitra Solusi, is a company engaged in internet service providers (ISP) in the work of PT. Maxindo has many divisions, so it is necessary to divide the network segmentation from each division, requires one switch one division device so that it consumes a lot of the remaining switch ports and also purchases a lot of network devices, for that it is needed Implementation of network design that can divide network segments in a physical device. like a layer three switch. For the above problems, PT. Maxindo Mitra Solusi applies the concept of a Virtual Local Area Network (VLAN) with a manageable switch device that functions as a network divider between divisions, to help the Network Development process at PT. Maxindo Mitra Solusi uses the Network Development Life Cycle (NDLC) development method. VLAN implementation can facilitate network troubleshooting and maintenance, and become more organized in providing IP addresses, avoiding broadcast domains, increasing security and increasing network performance.

Automated Fake Access Point Attack Detection and Prevention System with IoT Devices

Wireless access points (APs), which allow many devices to be easily connected to the Internet, are widely used today because they offer the easiest way to connect to the Internet. With the development of the concept of Internet of Things (IoT), WiFi networks are widely used in our homes, workplaces, social areas, campus areas. With the increase of WiFi networks, attacks on these networks are constantly increasing. In this study, an IoT-based approach to detect and prevent Fake Access point attacks frequently seen in WiFi networks is proposed. A Single Board Computer (SBC) and a wireless antenna in the "Soft AP" feature are used for operation. Fake APs were detected by air scanning. In the first phase of the study, fake Access point broadcasts have been created which can create security weakness. In order to determine the fake Access points created in the second stage, SBC and wifi module were used to scan air. In the final stage, the mac address of the fake AP has been assigned to an unauthorized Virtual Local Area Network (vLAN) on the network to prevent detected fake AP broadcasts. The possible attack methods for the study were implemented and it was revealed that the proposed approach prevented the attack successfully in all scenarios. The study is seen as an effective, developed and economically useful IoT application for network administrators to prevent the attack using fake Access point.

Perancangan Backup Link Menggunakan Metode HSRP (Hot Standby Router Protocol) Dalam Penyediaan Layer-3 Redundansi

With the increase of internet user today, if it only has one router, when the router experiencing a network failure, then the internet cannot be used. To overcome this problem, the HSRP (Hot Standby Router Protocol) method by creating one active link and one backup link has been applied in the previous research. In this research will be applying the HSRP, VTP (Vlan Trunking Protocol), InterVLAN, and VLAN (Virtual Local Area Network) as a comparison. The testing parameter in this research will be using packet loss and throughput. From the result of testing that has been done, it shows that by applying the HSRP method, it gives a network availability with the packet loss of only 0,32%, and throughput of 1,159Mb/s (95,58%) from using 100 PC.

Implementasi Keamanan Jaringan Komputer Local Area Network Menggunakan Access Control List pada Perusahaan X

In Company X, the use of the internet is a demand for workers. Therefore, an internet network is very much needed in a Company X. The absence of restrictions in the use of the internet network can interfere with the security and misuse of the internet network, for this reason the arrangements in the internet network are designed. One method used is the Virtual Local Area Network (VLAN) Access Control List (ACL) method that is applied to Company X. The Vlan Access Control List method is one of the techniques for requesting an internet network access or data communication and sending a number of data packets from one computer to another. The author resets the results proving that the Vlan Access Control List with the filtering and sharing method of internet connection users can filter and identify users who have restricted access to access other users or to servers in Company X to improve data security.

Research on Communication Network Configuration and Simulation of Smart Substation Based on Ethernet

The characters of the intelligent substation communication network structure are analyzed in the paper. Combining existing integrated automation substation hardware circuit and VLAN (Virtual Local Area Network) research foundation to optimize the network configuration. In accordance with IEC61850 standard, the network is partitioned into several VLANs based on the Tag VLAN division method of ID address. Real-time communication packets between GOOSE networks, SV (sampling information) networks, and switches use 802.1Q protocol headers to distinguish these packets. Finally, OPNET simulation software was used to simulate and verify the simplified dual-star topology. The results demonstrate that the delay and traffic bandwidth meet the requirements of actual substation operation standards. Compared with ordinary single-star networks, the reliability is greatly improved and the effectiveness is improved.

Design, Structure and Significance of Virtual Machines in Network Management System: An Emulation Analysis of VMware Based Hospital System in Pakistan

The trend of the use of virtual machines is vitally growing in the world. Virtual machines are being used in different organizations. These virtual machines come as a result from an output of a host hypervisor. If an organization or an institution is being run by virtualization then it is possible that unnecessary expenses, additional burden, wastage of resources and excesses of space can be reduced for networking. With the organizations when the structure of a medical institution or hospital is viewed it comes out that even big and small hospitals are shifting their management systems to certain kinds of networks. As it is visible in the rapidly advancing world that hospitals are also using networking technology so why not they shift to virtualization? So, to observe either virtualization can effectively run in a hospital scenario this research is conducted. To further analyze if this can work in the setting of Pakistan or not? This research is conducted according to an assumed situation of Hospital that has four different branches in a country. To find the outcomes simulation method is used. A network is built on VMware Workstation. This network is designed to run a hospital networking system. That comprises of a virtual private network server, firewall router, file transfer protocol server, web server, and voice over internet protocol server, virtual local area network, active directory, virtual switches, dynamic host control protocol et cetera. After proper testing of the VMware then fully loaded system is launched and every functional requirement is utilized to clearly investigate the progress of a virtual network and this research has resulted in a successful network management system for Health Care Hospital in Pakistan. In viewing this the researcher has invented two concepts in this research that are “Hospital Virtualization” and “Pocket Network Theory.”

Design and Development of Virtual Local Area Network and Securing Network using Network Address Translation

To develop and implement a Virtual Local Area Network by using sub-netting and to find the optimized IP depended on host number. When a company purchases web hosting from Internet Service Provide they will purchase several static addresses. As a result an automated system to store the information about assigned IP address and solve the problem. The main objective is to develop and discuss about the various Internet Service Provider (ISP) and securing the network by using Network Address Translator (NAT) and Access Control list (ACL). Static routes or a direct connection to the destination network i.e. a router might be running both an Open Shortest Path First version 3 (OSPFv3) process and a Routing Information Protocol (RIP) process. If the OSPF protocol is advertised to optimize the routes by RIP protocol, it is said to be redistributing RIP. The detailed information about the Dynamic protocols such as RIP, OSPFv3, EIGRP etc.., its standards, functionality and internetworking issues in the networking domain are observed and troubleshoot the problems in the internetwork connectivity using the CISCO routers and end devices and hence to design a simple network with tool with multiple routing protocols in IPv6 domain and redistribute for end-to-end communication.

Simulation and Design of University Area Network Scenario(UANS) using Cisco Packet Tracer

Computer network has become the most significant issue in our day to day life. Networking companies depend on the proper functioning and analysis of their networks for education, administration, communication, e-library, automation, etc. Mainly interfacing with the network is induced by one of the other user/users to share some data with them. So, this paper is about communication among users present at remote sites, sharing this same network UANS. UANS stands for the University Area Network Scenario. So in this work the network is designed using Cisco Packet Tracer. The paper describes how the tool can be used to develop a simulation model of the Pabna University of Science and Technology, Pabna, Bangladesh. The study provides into various concepts such as topology design, IP address configuration and how to send information in the form of packets in a single network and the use of virtual Local Area Network (VLANs) to separate the traffic generated by a different department.

Information and communication system technology with VPN site-to-site IPsec

This research aims to solve network problems in Information and Communication Technology (ICT) project at Gelora Bung Karno (GBK) gym building. The ICT project was created for the 18th Asian Games event. The technologies used in ICT projects in GBK are VLAN (virtual lan) and Virtual Private Network (VPN). The problem in this ICT project is the end device must be connected through the two switched layers but using a different network. VLAN is a solution to divide the network segment without having to follow the physical condition of the device. This project was made by using four stages. Those stages are analysis, design, implementation and testing. On ICT systems, VLAN are used to divide network segments required for Access Point and CCTV requirements. VLAN are simulated in GNS3 and VMWARE software. As a result, access points and CCTV as end users are connected to the core routers in the network operational center via the layer two switch. The next problem is the lack of efficient monitoring and troubleshooting system. Monitoring and troubleshooting systems must be done from the Network Operational Center (NOC) in GBK. Monitoring and troubleshooting systems are more effectively done directly from the developer’s local network by accessing the local network of ICT projects over the internet. This mechanism is called a VPN. VPN technology is used to access local networks that exist in ICT projects using the local network of related developer companies. The VPN uses IPSec as encryption for the packet data equality. The results show that VPN is able to connect local network in ICT GBK project with local network of developer company through internet.