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Security issues in protocols of TCP/IP model at layers level

The paper defines the functionality of each layer in TCP/IP model within the popular protocol for each. Then it investigates each protocol attack by covering their purposes and how they work. Overall, the objective of this research is to conclude which layer and protocol have become the biggest issues in TCP/IP layers. | International Journal of Computer Networks and Communications Security VOL. 5, NO. 5, MAY 2017, 96–104 Available online at: www.ijcncs.org E-ISSN 2308-9830 (Online) / ISSN 2410-0595 (Print) Security issues in Protocols of TCP/IP Model at Layers Level Albandari Mishal Alotaibi1, Bedour Fahaad Alrashidi2, Samina Naz3 and Zahida Parveen4 1, 2, 3, 4 University of Hail, Department of Computer Science, Hail, Saudi Arabia 1 a.alotebe@uoh.edu.sa, 2b.alrashidi @uoh.edu.sa, 3s.naz@uoh.edu.sa, 4z.mali@uoh.edu.sa ABSTRACT It is widely recognized that data security has become of critical importance for most organizations. This paper gives an overview of the security issues in the Transmission Control Protocol (TCP)/Internet Protocol (IP) model, specifically the protocol of each layer. The paper defines the functionality of each layer in TCP/IP model within the popular protocol for each. Then it investigates each protocol attack by covering their purposes and how they work. Overall, the objective of this research is to conclude which layer and protocol have become the biggest issues in TCP/IP layers. Keywords: Network Security, TCP/IP Models, Security Threats, Data Protection, Internet Protocol, Flood. 1 INTRODUCTION Computer network technology is developing rapidly. A computer network, or simply a network, is a collection of connected computing devices to share information and/or recourses. Network security is a main issue in computing because different kinds of attacks are increasing daily. With the development and popularization of Internet application technology, network security needs to be paid more and more attention. Network security covers all phases associated with the security of the sensitive information resources present on the network. It deals with all the measures to protect data throughout their transmission. The specific goals of network security are confidentiality, integrity and availability. To formalize and maintain the secure and wellorganized .