It's not supported by Google Compute | It's on our roadmap | What do you mean I have to wrap an IP in square brackets? | We can use RFC6598 | NAT444 is fine |
IPv6 is slower than IPv4 | Our Dynamic DNS doesn't support it | Larger headers are less efficient | I don't want to expose my MAC address | Android doesn't support DHCPv6 |
Github doesn't support IPv6 | It's too hard to support | IPv6 just isn't a priority | It's not mature enough | |
Our vendor doesn't support it | AWS doesn't support it | There's no ROI on deploying IPv6 | IPv6 isn't supported by OVH Cloud | IPv6 is a security risk |
Our business intelligence team can't even parse IPv4 logfiles | End users don't care about IPv6 | We forgot to include IPv6 in our last RFP | We don't have a lab to test it | I don't want to lose the security provided by NAT |