The demand for the Internet has grown tremendously. The Internet has become the foundation for world wide digital communication. The survivability of this critical network infrastructure is important to businesses, universities and government agencies. So, it is mandatory to secure the Internet. Most of the research concerning on securing the Internet focuses on protecting the data using techniques such as authentication and encryption rather than securing the Internet Infrastructure. This leads to many instances where the network infrastructure has been compromised by malicious adversaries. Thus, network infrastructure security is clearly a pressing need.Among different network threats, the routing table poisoning attack is the most devasting and least researched topic which needs immediate research attention. In this paper, we propose an efficient method to secure the distance vector routing protocols.

Key words:Internet Security, Routing table Attacks, Distance Vector Routing, Link State Routing.