L3-arpsec - módulo seguro para controle e proteção do protocolo de resolução de endereços em redes definidas por software

• Ano de defesa: 2015
• Autor(a) principal: Oliveira, Rogério Leão Santos de [UNESP]
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Estadual Paulista (Unesp)
• Palavras-chave em Português: Internet - Sistemas de segurança; Redes de computadores - Medidas de segurança; Redes de computadores - Protocolos; Internet - Security measures
• Link de acesso: http://hdl.handle.net/11449/128103; http://www.athena.biblioteca.unesp.br/exlibris/bd/cathedra/30-09-2015/000849444.pdf

The Address Resolution Protocol (ARP) is used to map IP addresses to MAC addresses in local area networks. This protocol has some security vulnerabilities and one of them is the Man-in-the-Middle (MITM) attack, a way to poisoning the ARP cache that allows a host to intercept packets switched between two other hosts. Software-Defined Networks (SDNs) represent an innovative approach in the area of computer networks, since they propose a new model to control forwarding and routing data packets that navigate the World Wide Web. One of the main features of this new paradigm is the ability to program functionalities in network controllers to manage the traffic. This study presents the module L3-ARPSec, a set of instructions written in the Python programming language that proposes a way to control the switching of ARP messages and also mitigates the MITM attack in local area networks. The module manages the ARP request, reply messages between all network devices and does not permit the ARP cache poisoning. After presenting some concepts of the SDN paradigm, the ARP protocol structure and how MITM attacks occurs, the L3-ARPSec module is explained in detail and the results of several tests performed are displayed