Chapter 5: IPv6 Addreesing

Question 1

What are 3 major types of IPv6 addresses?

Answer 1

• Unicast
• Anycast
• Multicast

Question 2

Which interface do you apply an IPv6 address?

Answer 2

• IPv6 address is assigned to a node, not interface

* can be applied to multiple interfaces

Question 3

List the IPv6 address types.

Answer 3

• Unspecified [ :: /128 ]
• Loopback [ ::1 /128 ]
• Multicast [ FF00:: /8 ]
• Link-local Unicast [ FE80:: /10 ]
• Private Unicast [ FC00:: /7 ]
• Global Unicast [ everything else ]

Question 4

What are unicast, multicast, and anycast addresses?

Answer 4

• Unicast: address range that matches one node
• Multicast: address range that belongs to a group of nodes
• Anycast: address range that matches the closes interface, based on routing protocols’ metric priority

Question 5

Identify types of multicast addresses.

Answer 5

• Pre-defined: list of addresses predefined for use of multicast [ FF0X::1 - FF0F::1 ], where X is:
- 2 Link-local scope
- 5 Site-local scope
- 8 Organization-Local scope
- E Global scope (everyone)
• Solicited-node: used by NDP to discover L2 addresses of other nodes participating in multicast by appending last 24 bits of an address to [ FF02::1:FFXX:XXXX ]