1. watching the video: why IPv6?
transitioning to IPV6:
bigger adressspace (128bits) not more 32bits like IPv4
3,4*10^38 IP addresses
Hex-Code
xxxx.xxxx.xxxx.xxxx.xxxx.xxxx.xxxx.xxxx (address structure)
no classes,no subnetting
Larger addressspace:
-Global reachability and flexibility
-Aggregation
-Multihoming
-Autoconfiguation
-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 efficineny
-Performance and forwarding rate scalability
-No broadcasts
-No checksums
-Extension headers
-Flow labels
Transition richness:
-Dual stack
-Translation
In our lifetime we dont see the end of IPv4, only we see IPv4 gets smaller and IPv6 gets bigger.
All devices are ready for IPv6.
2.answer the questions
-How many addresses are at IPv6? and how offen more then IPv4?
There are 3,4*10^38 addresses in IPv6 thats 7,9·1028 more then IPv4
-Why IPv6 addresses are in Hex?
Because the base is 16 and so there 6 more possebilitys to write in a smaller way.
-What is possible with IPv6 and not wit IPv4?
You dont need classes any more. You can rout direct.
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