This chapter covers
- How IPv6 uses Neighbor Discovery Protocol for address resolution (and more)
- The IPv6 routing table
- How routers forward IPv6 packets
- How to configure IPv6 static routes
In chapter 20, we covered IPv6 addressing, including how to configure IPv6 addresses on Cisco routers and the various IPv6 address types. In this chapter, we’ll build upon that knowledge and look at IPv6 routing, including how routers forward IPv6 packets and how to configure IPv6 static routes. Specifically, we will cover the following exam topics:
- 3.1 Interpret the components of routing table
- 3.2 Determine how a router makes a forwarding decision by default
- 3.3 Configure and verify IPv4 and IPv6 static routing
We have already covered these exam topics from an IPv4 perspective, particularly in chapter 9. The good news is that the fundamentals of IPv6 routing are largely identical to those of IPv4 routing, so many of the concepts in this chapter will not be new to you. One point worth mentioning is that IPv6 dynamic routing is not included in the CCNA exam—only static routing; the exam topics list mentions OSPFv2 (which only supports IPv4), not OSPFv3 (which supports both IPv4 and IPv6).