Local Area Network (Lan) Mock-Up And The Prevention Of Cybernetics Related Crimes In Nigermills Company Using Firewall Security Device [ ]


This study was conducted using the Local Area Network (LAN) of Niger Mills, Calabar, Cross River state, Nigeria. It entailed the simulation of LAN with a view to checking its quality, latency and also creating a firewall security device to mitigate the rate of cybercrime. A simulator-software (Packet tracer) was used to design, configure, troubleshoot and visualize network traffic within a controlled simulated program environment. Various computer systems were configured using the Class C IP addressing system. The packets captured on the Niger Mills network were analyzed based on application and transport protocol. From the study, it was observed that web browsing (HTTP) constituted the highest traffic with 42.9 per cent. This was followed closely by SMPT/POP with 28.9 per cent and the FTP with 16.39 per cent. Others were the DNS with 10.41per cent and SMB with 1.3per cent. Further findings indicated that creating and activating firewall into the LAN network was able to prevent intruders. It also screened unauthorized users from accessing the system. In addition, firewall was able to filter incoming network traffic based on source or destination, filter outgoing network traffic based on source or destination, filter network based on content, detect and filter malware, make internal resource available, report network traffic and firewall activities. Further studies should be carried out using a more sophisticated software application (OPNET) in simulating the networks