Summary

In this chapter, you learned about IPv4 address design and routing protocol selection.

The following topics were explored:

• Why proper IP addressing and protocol selection are critical to your business

• IP address design issues, including private addresses and NAT, how subnet masks are used and selected, hierarchical addressing and summarization, and VLSMs

• The various features of routing protocols in general, and the specifics for the IP routing protocols RIPv1, RIPv2, IGRP, EIGRP, OSPF, Integrated IS-IS, and BGP4

• The process that chooses IP routing protocols for your network and the concepts of redistribution, filtering, and administrative distance