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Network Protocols for Security Professionals

You're reading from   Network Protocols for Security Professionals Probe and identify network-based vulnerabilities and safeguard against network protocol breaches

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Product type Paperback
Published in Oct 2022
Publisher Packt
ISBN-13 9781789953480
Length 580 pages
Edition 1st Edition
Languages
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Authors (2):
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Deepanshu Khanna Deepanshu Khanna
Author Profile Icon Deepanshu Khanna
Deepanshu Khanna
Yoram Orzach Yoram Orzach
Author Profile Icon Yoram Orzach
Yoram Orzach
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Toc

Table of Contents (23) Chapters Close

Preface 1. Part 1: Protecting the Network – Technologies, Protocols, Vulnerabilities, and Tools
2. Chapter 1: Data Centers and the Enterprise Network Architecture and its Components FREE CHAPTER 3. Chapter 2: Network Protocol Structures and Operations 4. Chapter 3: Security Protocols and Their Implementation 5. Chapter 4: Using Network Security Tools, Scripts, and Code 6. Chapter 5: Finding Protocol Vulnerabilities 7. Part 2: Network, Network Devices, and Traffic Analysis-Based Attacks
8. Chapter 6: Finding Network-Based Attacks 9. Chapter 7: Detecting Device-Based Attacks 10. Chapter 8: Network Traffic Analysis and Eavesdropping 11. Chapter 9: Using Behavior Analysis and Anomaly Detection 12. Part 3: Network Protocols – How to Attack and How to Protect
13. Chapter 10: Discovering LAN, IP, and TCP/UDP-Based Attacks 14. Chapter 11: Implementing Wireless Network Security 15. Chapter 12: Attacking Routing Protocols 16. Chapter 13: DNS Security 17. Chapter 14: Securing Web and Email Services 18. Chapter 15: Enterprise Applications Security – Databases and Filesystems 19. Chapter 16: IP Telephony and Collaboration Services Security 20. Assessments 21. Index 22. Other Books You May Enjoy

Routers and routing protocols

In this section, we will examine routers, routing principles, and additional mechanisms such as Access Control Lists (ACLs), layer 3 switching, HSRP/VRRP, Network Address Translation (NAT), and more. In Chapter 12, Attacking Routing Protocols, we will take a deep dive into the details of routing protocols, their vulnerabilities, potential attacks, and how to defend against them.

Routing operations

Routing is the process of moving packets from end to end through the network. As you can see in Figure 2.20, the PC on the left, 10.1.1.20/24, sends the packet to its default gateway, R1, with an IP address of 10.1.1.1/24. R1 forwards the packet to the next router, R7, which then forwards it to R3, then to R4, and then to the destination of 20.1.1.20:

Figure 2.20 – ARP

There are several important issues regarding routing:

  • The device that sends the packet looks at the destination address, and since this address is...
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