IPv6

First watch this video to know what i am talking about.

https://www.youtube.com/watch?v=mvlBMogudkQ 

Differences about IPv4 and IPv6:

IPv4:

192.168.201.113 is a tipical IPv4 address.

A IPv4 address has 32 bits and consists of dots and decimal numbers. There are only 4 billion address possible.

IPv6:

A524:72D3:2C80:DD02:0029:EC7A:002B:EA73 is a tipical IPv6 address.

A IPv6 address has 128 bits and consists of colons and hexadecimal numbers. There are 3,8*10^38 address possible.

Larger address space:
Global reachability and flexibility
Aggregation
Multihoming
Autoconfiguration
Plug-and-play
End-to-end without NAT
Renumbering

Mobility and security:
Mobile IP RFC-compliant
IPsec mandatory (or native) for IPv6

Simpler Header:
Routing efficiency
Performance and forwarding rate scalability
No broadcasts
No checksums
Extension headers
Flow Labels

Transition richness:
Dual stack
Translation

Questions we got from the teacher:

• How many possible addresses are at IPv6? How many times is this more compared to IPv4?

            There are 3,4 * 10^38 addresses possible .

             It's 8,5*10^28 more times compared to IPv4.

• Why are IPv6 addresses written in hexadecimal form?

             Because the hexadecimal has got 16bit, the range is from 0-9 and from A-F. So you                              have more possibilities.

• What is the possibility at IPv6, in difference to IPv4?

           The header of IPv6 gives you the opportunity to involve together chained extensions. So the                actually header is going to be shorter and the header of not used extensions isn't going on.

              Through those properties, the header of IPv6 can load faster.

• What is "Autoconfiguration" and "Renumbering"?

                Autoconfiguration: In IPv6 the hosts are able to configure their IPv6 address and their                         default router settings.

                Renumbering: In IPv6 networks can be renumbered. Routers can send a new prefix to tell                   the devices to regenerate their IP address.

• What is IPsec and which function has it at IPv6?

               Internet Protocol Security

               It protects the communication by authenticating and encrypting every IP-packet of a                            session.

• What is used instead of a broadcast-message?

              A multicast is used instead of a broadcast-message.

• How is the transition of IPv4 to IPv6 effected?

            The transition takes place through tunneling.

• What happens at the interface of a Cisco-Router, if a IPv6 address will be activated?