10. IPv6 Addressing Formats and Rules //

Question 1

What is the size of IPv6?

Answer 1

128-bit address space, providing 340 undecillion (i.e., 340 followed by 36 zeroes) possible addresses.

Question 2

What are the three migration techniques of IPv4 to IPv6?

Answer 2

Dual Stack, Tunneling, Translation

Question 3

What is Dual Stack?

Answer 3

Dual stack allows IPv4 and IPv6 to coexist on the same network segment. Dual stack devices run both IPv4 and IPv6 protocol stacks simultaneously. Known as native IPv6, this means the customer network has an IPv6 connection to their ISP and is able to access content found on the internet over IPv6.

Physical topology showing three dual stack PCs and a dual stack router

Question 4

What is Tunneling?

Answer 4

Tunneling is a method of transporting an IPv6 packet over an IPv4 network. The IPv6 packet is encapsulated inside an IPv4 packet, similar to other types of data.

Question 5

What is Translation?

Answer 5

Network Address Translation 64 (NAT64) allows IPv6-enabled devices to communicate with IPv4-enabled devices using a translation technique similar to NAT for IPv4. An IPv6 packet is translated to an IPv4 packet and an IPv4 packet is translated to an IPv6 packet.

Question 6

IPv6 addresses are represented using?

Answer 6

Hexadecimal numbers. This base sixteen number system uses the digits 0 to 9 and the letters A to F:

Question 7

is the unofficial term used to refer to a segment of 16 bits, or four hexadecimal values.

Answer 7

hextet

Question 8

What is the preferred format in IPv6?

Answer 8

Include all of the 128 bits

Question 9

How to make IPv6 shorter?

Answer 9

Omitting Leading Zeroes then if a set is all 0, just remove all the zeroes and remain the double colon.