Summary

In this chapter, we learned in depth about how types of IGP and EGP such as OSPF, RIP, BGP, and IS-IS and their corresponding analyses using various packet sniffers and GUI-based network simulations such as Packet Tracer and GNS3. Then, we learned about the BGP. Apart from routing protocols, we performed various practical demonstrations of attacks such as routing table poisoning and BGP hijacking and also learned about the various mitigation techniques of routing protocols and how we can securely configure the routers.

Now, in the next chapter, we will learn about a very important protocol from the attacker’s point of view, which is Domain Name Service (DNS), its behavior analysis using sniffers, and the practical demonstration of various real-time attacks on DNS.