Continuando con el libro "IPsec y redes privadas virtuales", este trabajo te muestra de una manera clara y sencilla como manejar y configurar una VPN de tipo PPTP y L2TP usando routers Cisco

Esto libro fue escrito con la intención de que sirva como libro de texto para estudiantes que cursen asignaturas sobre comunicación de datos, redes de computadores y protocolos de comunicación entre computadores. Además de estudiantes en Ingeniería en Ordenadores, a todos que están interesados en conocer en profundidad todo sobre redes de comunicaciones. También, este libro intenta describir poco más sobre la tecnología WIMAX, en actualidad la más potente de todas.

El arma más poderosa que posee el ser humano es la información, ya que le permite conocer, predecir, manipular, sobrevivir y, en definitiva, estar un paso por delante con respecto a quien no dispone de ella. Por esta razón, uno de sus principales objetivos no sólo es llegar a conocer algo, sino tener también la capacidad de salvaguardarlo de forma segura, es decir, que únicamente permanezca accesible para aquellas personas autorizadas. Una de las posibles soluciones pasa por encriptar la información antes de ser transmitida, empleando para ello Redes Privadas Virtuales. El término de Red Privada Virtual (VPN), en inglés Virtual Private Network, hace referencia a un canal de comunicación privado e implementado sobre una infraestructura de acceso público. Dos extremos van a acordar en base a un protocolo y a una serie de políticas de seguridad previamente establecidas, las características de un túnel sobre el cual enviar los datos de manera confidencial. Esta información será cifrada antes de ser inyectada por el enlace, de ahí viene el concepto de “privada”. La condición de “virtual” se corresponde al hecho de que cuando la VPN esté establecida, se tendrá un contacto aparente pero no real entre los participantes de la misma. El libro está estructurado en siete capítulos: se ha dedicado un capítulo entero a la introducción de los conceptos fundamentales de las VPNs; otro a presentar de forma genérica un breve resumen de la arquitectura TCP/IP, pilar fundamental de las redes de comunicación. A continuación tenemos un capítulo destinado completamente a los sistemas criptográficos modernos, ya que ésta será la base principal sobre la que se sustenten las VPNs. Y por último, se ha dedicado un capítulo por cada clase de VPN tratada: IPSec, PPTP, L2TP/IPSec y SSL. El planteamiento de exposición para los capítulos correspondientes a las VPNs será común para todos los protocolos. En primer lugar, se presentarán una serie de conceptos teóricos; posteriormente se estudiarán un grupo de herramientas que permitirán poner en práctica dichas ideas, y a partir de todo ello, se desarrollarán un conjunto de casos prácticos que facilitarán al lector el asentamiento de los conocimientos adquiridos. A su vez, también se incluirá una sección dedicada íntegramente a la recopilación y tratamiento de los mensajes de error.

Trust the best-selling Official Cert Guide series from Cisco Press to help you learn, prepare, and practice for exam success. They are built with the objective of providing assessment, review, and practice to help ensure you are fully prepared for your certification exam. * Master Implementing Secure Solutions with Virtual Private Networks (SVPN) 300-730 exam topics * Assess your knowledge with chapter-opening quizzes * Review key concepts with exam preparation tasks This is the eBook edition of the CCNP Security Virtual Private Networks SVPN 300-730 Official Cert Guide. This eBook does not include access to the companion website with practice exam that comes with the print edition. CCNP Security Virtual Private Networks SVPN 300-730 Official Cert Guide presents you with an organized test preparation routine through the use of proven series elements and techniques. “Do I Know This Already?” quizzes open each chapter and enable you to decide how much time you need to spend on each section. Exam topic lists make referencing easy. Chapter-ending Exam Preparation Tasks help you drill on key concepts you must know thoroughly. CCNP Security Virtual Private Networks SVPN 300-730 Official Cert Guide focuses specifically on the objectives for the CCNP Security SVPN exam. Three leading Cisco security technology experts share preparation hints and test-taking tips, helping you identify areas of weakness and improve both your conceptual knowledge and hands-on skills. Material is presented in a concise manner, focusing on increasing your understanding and retention of exam topics. Well regarded for its level of detail, assessment features, comprehensive design scenarios, and challenging review questions and exercises, this official study guide helps you master the concepts and techniques that will enable you to succeed on the exam the first time. It helps you master all the topics on the Implementing Secure Solutions with Virtual Private Networks (SVPN) 300-730 exam, deepening your knowledge of * Site-to-site virtual private networks on routers and firewalls * Remote access VPNs * Troubleshooting using ASDM and CLI * Secure communications architectures CCNP Security Virtual Private Networks SVPN 300-730 Official Cert Guide is part of a recommended learning path from Cisco that includes simulation and hands-on training from authorized Cisco Learning Partners and self-study products from Cisco Press. To find out more about instructor-led training, e-learning, and hands-on instruction offered by authorized Cisco Learning Partners worldwide, please visit http://www.cisco.com/web/learning/index.html.

Previous information security references do not address the gulf between general security awareness and the specific technical steps that need to be taken to protect information assets. Surviving Security: How to Integrate People, Process, and Technology, Second Edition fills this void by explaining security through a holistic approach that considers both the overall security infrastructure and the roles of each individual component. This book provides a blueprint for creating and executing sound security policy. The author examines the costs and complications involved, covering security measures such as encryption, authentication, firewalls, intrusion detection, remote access, host security, server security, and more. After reading this book, you will know how to make educated security decisions that provide airtight, reliable solutions. About the Author Amanda Andress, CISSP, SSCP, CPA, CISA is Founder and President of ArcSec Technologies, a firm which focuses on security product reviews and consulting. Prior to that she was Director of Security for Privada, Inc., a privacy company in San Jose, California. She built extensive security auditing and IS control experience working at Exxon and Big 5 firms Deloitte & Touche and Ernst & Young. She has been published in NetworkWorld, InfoWorld, Information Security Magazine, and others, and is a frequent presenter at industry events such as N+I and Black Hat.

A detailed guide for deploying PPTP, L2TPv2, L2TPv3, MPLS Layer-3, AToM, VPLS and IPSec virtual private networks.

Based on the official instructor-led training course of the same name in a self-study product, Cisco® Secure Virtual Private Networks is a comprehensive, results-oriented book designed to give readers the knowledge to plan, administer, and maintain a Virtual Private Network (VPN). Readers are taught to accomplish several specific tasks, including identifying the features, functions, and benefits of Cisco® Secure VPN products; identifying the component technologies implemented in Cisco® Secure VPN products; utilizing commands required to configure and test IPSec in Cisco IOS® software and PIX Firewalls; installing and configuring the Cisco® VPN Client to create a secure tunnel to a Cisco® VPN Concentrator and PIX Firewall; configuring and verifying IPSec in the Cisco® VPN Concentrator, Cisco router, and PIX Firewall; and configuring the Cisco® VPN Concentrator, Cisco® router, and PIX Firewall for interoperability.