2.5 – Different Types of IPv6

Question 1

Unicast

Answer 1

one-to-one, packet is sent to a SINGLE interface

Question 2

Global Unicast Addresses

Answer 2

publicly routable addresses used to communicate OUTSIDE of a local network

*2000::/3 = was the originally defined address space

but now all “non-defined” addresses are considered global unicast addresses

Question 3

Unique Local Addresses

Answer 3

NON-publicly routable addresses used to communicate WITHIN a local network

FC00::/7 = the 8th bit MUST always be enabled so FD00/8 is the actual useable defined space

Used internal to network

Question 4

Link-Local Addresses

Answer 4

replacement for Automatic Private IP Addresses [APIPA]

*Every IPv6 host will have a link-local address

*FE80::/10 = self-assigned

Question 5

Multicast

Answer 5

one to many, packet is sent to many interfaces

*FF00::/8 = is the defined space for all IPv6 multicast

Question 6

Loopback

Answer 6

used for testing ::1

Question 7

Anycast

Answer 7

one to nearest, packet is sent to the nearest interface in terms of routing distance

*Replaces broadcast from IPv4

Question 8

Dual Stack

Answer 8

run both IPv4 & IPv6 at the same time

*IPv6 = made to be routable quicker, more security