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

Attacks on the data plane and how to defend against them

As we saw earlier, the data plane is the part of the networking device that's responsible for the transfer of data through the device, and therefore attacks on the data plane are those targeting processes and services that are responsible for data transfer. Data plane services are services such as ICMP, ARP, and Reverse ARP (RARP), among others. We will go through these services and see how to protect the data plane while using them.

Protection against heavy traffic through an interface

Heavy traffic can cross a networking device interface—that's the purpose of it. The thing is to know when it happens and check if it is legitimate traffic. For this purpose, there are two things we can configure, as follows:

  • Traffic threshold
  • Storm control

Configuring a threshold: 80-90% of the interface bandwidth should be a reasonable value. For example, for Cisco, refer to