Book Image

Network Protocols for Security Professionals

By : Yoram Orzach, Deepanshu Khanna
5 (1)
Book Image

Network Protocols for Security Professionals

5 (1)
By: Yoram Orzach, Deepanshu Khanna

Overview of this book

With the increased demand for computer systems and the ever-evolving internet, network security now plays an even bigger role in securing IT infrastructures against attacks. Equipped with the knowledge of how to find vulnerabilities and infiltrate organizations through their networks, you’ll be able to think like a hacker and safeguard your organization’s network and networking devices. Network Protocols for Security Professionals will show you how. This comprehensive guide gradually increases in complexity, taking you from the basics to advanced concepts. Starting with the structure of data network protocols, devices, and breaches, you’ll become familiar with attacking tools and scripts that take advantage of these breaches. Once you’ve covered the basics, you’ll learn about attacks that target networks and network devices. Your learning journey will get more exciting as you perform eavesdropping, learn data analysis, and use behavior analysis for network forensics. As you progress, you’ll develop a thorough understanding of network protocols and how to use methods and tools you learned in the previous parts to attack and protect these protocols. By the end of this network security book, you’ll be well versed in network protocol security and security countermeasures to protect network protocols.
Table of Contents (23 chapters)
Part 1: Protecting the Network – Technologies, Protocols, Vulnerabilities, and Tools
Part 2: Network, Network Devices, and Traffic Analysis-Based Attacks
Part 3: Network Protocols – How to Attack and How to Protect

IGP standard protocols – the behaviors RIP (brief), OSPF, and IS-IS

Now, as we all know, the whole internet is a very big single entity comprising many smaller networks. These smaller networks relate to each other via some routing protocols. So, this means that when any computer is connected to the internet, that computer system is a part of a smaller network – this smaller network in terms of networking is known as the Autonomous System (AS).

These ASs are connected via the Exterior Gateway Protocol (EGP), so if a computer from, say, AS-1 wants to communicate with another computer in AS-2, it transfers via the EGP. An example of EGP is Border Gateway Protocol (BGP).

Therefore, following a similar concept, when computers inside AS-1 need to communicate with each other, they use the IGP. Examples of IGP are Routing Information Protocol (RIP), Open Shortest Path First (OSPF), Interior Gateway Routing Protocol (IGRP), Enhanced Interior Gateway Protocol (EIGRP), and...