That’s only if you run on soho (Mikrotik) or prehistoric gear. It’s hard to find Cisco/Juniper Datacentre router manufactured in the last 5 years that wouldn’t have full support for IPv6. 

There’s absolutely zero reason not to deploy it yet!

With Kind Regards, 
Dominik Nowacki 
 
Clouvider Limited is a limited company registered in England and Wales. Registered number: 08750969. Registered office: 88 Wood Street, London, United Kingdom, EC2V 7RS. 

On 8 Mar 2019, at 13:02, Stary Bezpiek <stary.bezpiecznik@gmail.com> wrote:

W dniu 08.03.2019 o 13:19, Martin Huněk pisze:
Post scriptum: IPv6 is not harder or slower to deploy than IPv4. If you would
like to make IPv6-only network without transition mechanisms from scratch, it
would be easier to make than IPv4-only. You wouldn't need CGN and also HA
would be much easier (multiple routers on segment and so on). Technically the
IPv6 should be faster, allows more freedom in network architecture and should
require less logic in the network itself. It is mainly political problem, not
technical.


Do not mix politics to IPv6, please.

It's still lot of technical problems with IPv6 - the main one is dealing IPv6 by software (processors) instead of hardware.
The first-hand example: Mikrotik. Lot of HW offload functions are only for IPv4. Same is with some Cisco's, or other randomly pointed devices. Amen.

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stary.bezpiek