International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395 -0056
Volume: 04 Issue: 05 | May -2017
p-ISSN: 2395-0072
www.irjet.net
Building a Secured and Performance Efficient VLAN in Wireless Ad hoc Network Spandana P J1, Swastika Lal2, Vineet3, Vishal4, Dr. C. Vidya Raj5 1 BE,
Department of CSE, NIE, Mysuru, Karnataka, India BE, Department of CSE, NIE, Mysuru, Karnataka, India 3 BE, Department of CSE, NIE, Mysuru, Karnataka, India 4 BE, Department of CSE, NIE, Mysuru, Karnataka, India 5 Professor, Department of CSE, NIE, Mysuru, Karnataka, India 2
---------------------------------------------------------------------***--------------------------------------------------------------------hoc network needs to form multiple-group as “virtual LANs” to ensure reasonable performance and efficient use of one that allows network devices to be combined as “virtual network bandwidth. An ad hoc wireless network consists of a LANs”. By this characteristic, VLAN divides the network into system of collection of two or more wireless mobile nodes different broadcast domains so that packets are only delivered that can freely and dynamically self-organize into arbitrary, between ports that are combined for the same VLAN. Wireless dynamic and temporary network topology. Any node can ad hoc networks consists of multiple devices with flexible communicate with any other node present in the network. network topology. The communications might be needed for Individual nodes can even send a broadcast message over the few wireless devices but not all devices in an ad hoc network. network. By the broadcasting protocol, these packets will be So there is a need to form multiple-group in an ad hoc network received over the wireless network, which results in wasteful as “virtual LANs” to ensure better performance and efficient bandwidth and insecurity. Therefore, an ad hoc network use of network bandwidth. In this paper, we propose a secure needs to be parted into multiple-groups as “virtual LANs” that VLAN construction protocol (SVCP) in wireless ad hoc can reduce redundant transmission and ensure efficient networks to provide security to the packets along with utilization of bandwidth. It also needs individual group key to efficient performance. Security is provided by using Diffie encrypt its information for security. An inter VLAN broadcast Hellman Algorithm for key generation, encryption and message to display emergency flash messages on all the decryption. Broadcast drawback is eliminated by making the systems in the VLAN. server node serve as a temporary agent to form a VLAN. Therefore, SVCP efficiently improve the utilization of bandwidth and security in wireless ad-hoc VLAN. An inter 2. RELATED WORK VLAN broadcast message to display emergency flash messages on all the systems in the VLAN. VLAN can be used to form Virtual Workgroups, to constrain broadcast traffic and to enhance the security of networks. Key Words: Virtual LAN, Dynamic Network Topology, Hence, it offers benefits in terms of efficient use of Wireless Ad hoc Networks, Network Bandwidth, Group bandwidth, flexibility, performance and security. A wireless Key, Client, Server, Security, Diffie-Hellman, Encryption, ad hoc network has no fixed infrastructure available, so no Decryption. fixed device can serve as LAN’s switch to administrate the configuration about ad hoc VLAN. Each node should 1. INTRODUCTION cooperate to maintain the network topology and packets transmission. A VLAN is a logical connection that allows network devices to be combined as ‘’virtual LANs”. By this By using the existing broadcasting protocol, multiple packets characteristic, VLAN segments the network into different from each of the nodes will be received over the wireless broadcast domains so that packets are delivered only network. It results in wasteful bandwidth. Each of the nodes, between ports that are combined for the same VLAN. A VLAN which wants to form their respective VLANs, will initiate the behaves like an ordinary LAN, but the connected devices are VLAN construction process, which results in redundancy. not physically connected to the same segment. While devices Each of the nodes will receive the packets which it should may be physically distributed anywhere on a network, they not access leading to insecurity. are grouped together by VLAN technology, and broadcasts are sent to all the devices within the same VLAN. A wireless 3. PROPOSED WORK
Abstract - A VLAN is not a physical connection but a logical
ad hoc network consists of multiple devices, which do not have a fixed network topology. The communications are not needed for all devices in an ad hoc network. Therefore, an ad
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We have proposed a server-initiated communication session. Each VLAN network consists of N nodes and a server, which
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