@article{MAKHILLRJA201711412373,
    title = {Local Area Network (LAN) Mock-up and the Prevention of Cybernetics Related Crimes in
Niger Mills Company using Firewall Security Device},
    journal = {Research Journal of Agronomy},
    volume = {11},
    number = {4},
    pages = {19-24},
    year = {2017},
    issn = {1815-9354},
    doi = {rjagr.2017.19.24},
    url = {https://makhillpublications.co/view-article.php?issn=1815-9354&doi=rjagr.2017.19.24},
    author = {D.E. and},
    keywords = {Lan,firewall,wireshark,ethernet,networking},
    abstract = {This study was conducted using the Local Area
Network (LAN) of the 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 traffics
within a controlled simulated program environment. The
various components of the network were configured using
commands and CISCO 3600 router. The design was also
made up of 3 core layer switches with 24 ports each, and
44 computer systems connected to them. Other key items
were: hubs, repeaters and two servers that served as
system backups. Various computer systems were
configured using the Class C IP addressing system. The
packets captured on the Niger mills network were
analyzed based on the application protocol and the
transport protocol. From the study, it was observed that
web browsing (HTTP) constituted the highest traffic with
42.9%. This was followed closely by SMPT/POP with
28.9% and the FTP with 16.39%. Others were the DNS
with 10.41% and SMB with 1.3%. Further findings
indicated that the created firewall into the LAN network
was able to prevent intruders and 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 mal ware, make internal
resource available, report on network traffic and
firewall activities. This is in line with what Hooke
assertions when he conducted a similar simulation
using firewall to check the rate of cyber crime in a WAN.
Traffic activities of the network were monitored and
reported. In order to ensure routine system checkup
and to further curb the problem of latency, a qualified
network administrator should be hired to manage the
network. Further studies should be carried out using a
more sophisticated software application (OPNET) in
simulating the different networks (LAN, MAN, WAN).}
    }