Summary

In this chapter, you learned about IPv4 and IPv6 addressing. The following topics were explored:

■ Private and public IP addresses, and when to use each

■ Determining the network size, including the number and type of locations and the number and type of devices at each location

■ Hierarchical addressing, route summarization, and the role of classful and classless routing protocols and fixed-length and variable-length subnet masks

■ Static and dynamic (DHCP) address assignment

■ Static and dynamic (DNS) name resolution

■ Features of IPv6, including its 128-bit addresses

■ Types of IPv6 addresses: unicast (one-to-one), anycast (one-to-nearest), and multicast (one-to-many)

■ Types of IPv6 unicast addresses: global aggregatable, link-local, and IPv4-compatible

■ Types of IPv6 address assignment: static or dynamic, which includes using link-local addresses, stateless autoconfiguration, and stateful using DHCPv6

■ Types of IPv6 name resolution: static or dynamic using DNS servers that have IPv6 protocol stack support

■ IPv4-to-IPv6 transition strategies, including dual-stack use, tunneling mechanisms, and translation mechanisms

■ IPv6 routing protocols, including RIPng, EIGRP for IPv6, OSPFv3, IS-ISv6, and BGP4+

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