Akademik Veri Yönetim Sistemi
2019 3rd International Symposium on Multidisciplinary Studies and Innovative Technologies (ISMSIT), Ankara, Türkiye, 11 - 13 Ekim 2019
The traditional network used today is unable to
meet the increasing needs of technology in terms of
management, scaling, and performance criteria. Major
developments in information and communication technologies
show that the traditional network structure is quite lacking in
meeting the current requirements. In order to solve these
problems, Software Defined Network (SDN) is capable of
responding as it, is flexible, easier to manage and offers a new
structure. Software Defined Networks have many advantages
over traditional network structure. However, it also brings
along many security threats due to its new architecture. For
example, the DoS attack, which overloads the controller's
processing and communication capacity in the SDN structure,
is a significant threat. Mobile Ad Hoc Network (MANET),
which is one of the wireless network technologies, is different
from SDN technology. MANET is exposed to various attacks
such as DoS due to its security vulnerabilities. The aim of the
study is to reveal the security problems in SDN structure
presented with a new understanding. This is based on the
currently used network structures such as MANET. The study
consists of two parts. First, DoS attacks against the SDN
controller were performed. Different SDN controllers were
used for more accurate results. Second, MANET was
established and DoS attacks against this network were
performed. Different MANET routing protocols were used for
more accurate results. According to the scenario, attacks were
performed and the performance values of the networks were
tested. The reason for using two different networks in this
study is to compare the performance values of these networks
at the time of attack. According to the test results, both
networks were adversely affected by the attacks. It was
observed that network performance decreased in MANET
structure but there was no network interruption. The SDN
controller becomes dysfunctional and collapses as a result of
the attack. While the innovations offered by the SDN structure
are expected to provide solutions to many problems in
traditional networks, there are still many vulnerabilities for
network security.