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)
1
Part 1: Protecting the Network – Technologies, Protocols, Vulnerabilities, and Tools
7
Part 2: Network, Network Devices, and Traffic Analysis-Based Attacks
12
Part 3: Network Protocols – How to Attack and How to Protect

BGP – protocol and operation

BGP is an EGP that was introduced in 1984 as v1 to route the network packets by choosing the best routing path. Hence, BGP is also known as the dynamic routing protocol.

So, as time evolved, the internet started growing, and the network traffic eventually started putting a greater load on the communication channels. Hence, the BGP was reframed and multiple versions were introduced. The current version of BGP is v4.

Now, as we know, for routers to communicate outside of their AS, they need to have BGP configured. The local network administrator will not know which AS number they should configure under. So, to solve all the AS and BGP configuration issues, all organizations take the AS configurations from their ISP. Hence, the ISP will put the organization’s network routes under its own AS, making it a single AS to route traffic from the organization to the global internet.

So, as with OSPF, BGP also transfers the data by choosing the...