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Network Routing, 2nd Edition by Karthik Ramasamy, Deep Medhi

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Chapter 10

Routing in the Global Internet

Twas in another lifetime one of toil and blood

When blackness was a virtue, the road was full of mud

I came in from the wilderness a creature void of form

“Come in,” she said,

“I'll give you shelter from the storm.”

Bob Dylan

Abstract

In this chapter, we discuss routing in the Internet and how BGP is used to accomplish this routing. We present how IP address allocation works from various Internet registries around the world. Peering and customer-provider relationships at the autonomous systems level as well as import and export policies impact who can route via whom–these are illustrated in this chapter. We also discuss IP prefix hijacking and how this can possibly be detected. ...

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