IPv6 Chapter 12

Question 1

Does IPv6 use NAT?

Answer 1

No, because its no longer needed due to the massive amount of addresses IPv6 supports

Question 2

What does a NAT64 Gateway do?

Answer 2

Used to allow translation for an IPv6 only network to access IPv4 networks.

Question 3

What does every Link-Local address begin with?

Answer 3

fe80:0000:0000:0000

Question 4

Define Link Local

Answer 4

IPv6 address that a computer gives itself after first booting. Used for communicating on a local network.

Question 5

Define Neighbor Discovery Protocol (NDP)

Answer 5

IPv6 protocol that performs the same functions as ARP and plays a roll in features SLAAC, consist of 5 ICMP control message types which are: Neighbor Solicitation, Neighbor Advertisement, Router Solicitation, Router Advertisement, Redirect.

Question 6

What is the difference between Advertising and Soliciting in terms of IPv6?

Answer 6

Solicitation is finding a mac address given its IPv6 Address

Advertising IPv6 packet sent in response to a multicast neighbor solicitation packet, telling the requesting system the MAC address the system it solicited.

Solicitation happens first then Advertisement is sent as a response

Question 7

Define a redirect packet

Answer 7

Enables a router to tell a host that there is a better router to use for traffic to a given destination. Comes in to play only if there are multiple routers used on a network

Question 8

Define DHCPv6

Answer 8

A Stateful IPv6 server Works similarly to an IPv4 server

A Stateless IPv6 server provides deconfiguration information and lets the host pick its own address via stateless address autoconfiguration. AKA SLAAC
Does it without the need for DHCPv6 Server