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Threats behind default configurations of network devices: Wired local network attacks and their countermeasures
Vázquez-Ingelmo, A. [1] Moreno-Montero, Á.M. [1] García-Peñalvo, F.J. [1]
[1] Universidad de Salamanca 
Libro: Handbook of Computer Networks and Cyber Security: Principles and Paradigms
Editorial: Springer International Publishing
ISBN: 9783030222765
Año de publicación: 2019
Páginas: 133-172
Tipo: Capítulo de Libro
DOI: 10.1007/978-3-030-22277-2_6 SCOPUS: 2-s2.0-85085821117 GOOGLE SCHOLAR
Resumen
Network devices not only allow users to build powerful local networks but also to protect them, their data, and their communications from unwanted intruders. However, it is important to give special attention to security within local networks, since internal attacks could be catastrophic for users. Internal security can be overlooked once the belief that all efforts and resources should be focused on protecting users from external intruders has been established. That belief is dangerous since it can foster the misconfiguration of internal network devices, providing a network infrastructure based on weak settings. This chapter should serve as a summary of a series of local network attacks as well as their countermeasures through the right configuration of the network devices. The attacks will be presented through a set of practical scenarios emulated on GNS3 to clarify their impact and consequences. Also, countermeasures will be discussed to illustrate their impact on networks and the advantages and disadvantages of their application.
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Design and deployment of hands-on network lab experiments for computer science engineers
Moreno-Montero, Á.M. [1] Retortillo-Manzano, D. [1]
[1] Universidad de Salamanca
Revista: International Journal of Engineering Education
ISSN: 0949-149X
Año de publicación: 2017
Volumen: 33
Número: 2
Páginas: 855-864
Tipo: Artículo
SCOPUS: 2-s2.0-85020065612 GOOGLE SCHOLAR
Resumen
Computer networks is an essential area in the training of computer science engineers. Delivery of networking laboratory experiments with specialized equipment is a challenge for computer networks teachers. The high cost of networking equipment makes it necessary to use simulation software to overcome the challenges of a large groups of students and working with complex topologies. This paper presents the first version of practical teaching materials to be used in networking courses for the Computer Science Engineering degree at the University of Salamanca (Computer Networks I and II). This material will allow students to work with real equipment in some cases and with simulation environments in others, maximizing the benefits of both.
Keywords: computer networks; networking laboratories;network simulation; network emulation; hands-on experiments; virtualization; cisco equipment; Packet Tracer (PT); GNS3; Cisco IOS
