Comment by JackSlateur
Comment by JackSlateur 15 hours ago
IPv4 at the edge and call it a day.
Why build today with deprecated technology ? Build your infra v6-only, add a layer at the edge to support old clients via IPv4. Job's done.
You should design your infrastructure to avoid paying too much for other people's legacy.
I personally push for IPv6-only internal networks whenever possible, and have deployed several such designs in datacenters.
Unfortunately, a lot of applications are building on platforms where IPv6 is an afterthought if even present at all. Take for example Azure, where IPv6 support is a fucking joke. From core services like Route Server not supporting it, to it being impossible to build v6-only networks due to forced v4 subnet and vNIC requirements, to many services that Microsoft provides only running on v4.
As much as I want to push IPv6 everywhere, that physically cannot happen until companies support it for all use cases. In the mean time dual stacking can be better than nothing but the complexity is non-trivial when the alternative is just running straight v4...