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Guide to TCP/IP: IPv6 and IPv4, Fifth Edition
ISBN 978-1-305-94695-8
Chapter 6 Solutions
Answers to Review Questions
2. c
4. b
6. a
8. a
10. a, e
12. d
14. c
16. a
18. d
20. c, d
22. d
Hands-On Projects Discussion
Hands-On Project 6-1
In this project, students examine the four primary Neighbor Discovery (ND) message types. These
Hands-On Project 6-2
In this project, the students build a display filter to view a Neighbor Advertisement message directed to a
specific host on the network.
The function of the compound display filter in this project continues to illustrate the capability of using a
Hands-On Project 6-3
In this project, which mirrors Hands-On Project 6-2, students build a display filter to view a Neighbor
Solicitation that is a Duplicate Address Detection message. Knowing how to configure a display filter for
specific NS-DAD messages could allow for quicker resolution times.
Hands-On Project 6-4
Guide to TCP/IP: IPv6 and IPv4, Fifth Edition
ISBN 978-1-305-94695-8
Hosts that use stateful address autoconfiguration may receive their IPv6 address and/or the DNS address
Hands-On Project 6-5
In this project, the students build a display filter to view a Router Advertisement message that has both the
Prefix option and the “L” flag set.
Case Projects Discussion
Case Project 6-1
Neighbor Solicitation and Neighbor Advertisement processes provide nodes with addresses of neighbors
on-link to them, are used for the Duplicate Address Detection process, used for the Neighbor
Case Project 6-2
This project is similar to Hands-On Project 6-4. But this is one of the most common issues in IPv6
implementations as it requires router configuration that is generally “off” by default. In addition, it is one of
those configuration components that is sometimes not clearly documented. The Hands-On Project guides
students through a series of steps using a Wireshark filter, whereas the Case Project provides the scenario
as to what it is about.
Because some IPv6 hosts successfully resolve URLs, that means that network operations are working from
The issue is discovered to be in fact the routers did not have the configuration with the M or O flags set to 1
in order to provide the DNS information to the hosts. Upon making the appropriate change to the router,
viewing the changes Wireshark and seeing the appropriate flag(s) set, and subsequent resetting of the hosts
so they can obtain updated information, the hosts that had the issues can now resolve URLs correctly.
Case Project 6-3
IPv6 host devices will execute a few initial IPv6 communication processes—Router Solicitation and
