69 lines
1.4 KiB
Text
69 lines
1.4 KiB
Text
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title: What is wrong with IPv4?
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---
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pub_date: 2019-10-01
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---
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author: Nico Schottelius
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---
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twitter_handle: NicoSchottelius
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---
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_hidden: yes
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---
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_discoverable: no
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---
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abstract:
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Why are people talking about moving to IPv6?
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What is wrong with running application on IPv4?
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---
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body:
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## TL;DR
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Nothing is wrong with IPv4. There is just too less of it.
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## IPv6 vs. IPv4 for end users
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At home
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Not big difference at the moment
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But: big potential for independence
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### Example: home automation
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All devices talk to a vendor
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You already have a bridge. Why sending data elsewhere?
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If enough IPv4: give all devices a public address. Can directly
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connect to your home bridge. But you can't. NAT.
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## IPv6 vs. IPv4 for developers
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This is the section I like most. Forums with posts from developers who
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recommend to turn off IPv6, to ignore it, complain about the new
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format.
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All of these are valid points. IPv6 is an additional protocol that
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applications need to handle.
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New apps: develop IPv6 only.
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## IPv6 vs. IPv4 for ISPs
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- SKT
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- Multiple NATs
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- Need to run IPv6 anyway to provide reachability
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- Easier to run end point NAT64
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## IPv6 vs. IPv4 for cloud providers
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Probably highest pressure for IPv4 users is on cloud
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## Other applications
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If you know about other applications or want to enhance one of our
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configuration, we invite you to join the [IPv6
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chat](https://IPv6.chat) or [write to us on
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Twitter](https://twitter.com/ungleich).
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