We would have to rewrite our entire application to support it | We forgot to include IPv6 in our last RFP | We can use RFC6598 | I don't want to expose my MAC address | We have IPv6, but we just want to keep things simple |
Hex is hard | Those stupid Privacy Extension addresses keep changing | IPv6 isn't supported by OVH Cloud | Larger headers are less efficient | What do you mean I have to wrap an IP in square brackets? |
End users don't care about IPv6 | It'll break our GeoIP | Azure doesn't support it | Our vendor doesn't support it | |
It's not supported by Google Compute | There's no ROI on deploying IPv6 | We'll deploy IPv6 next financial year | Can't we just buy more IPv4 addresses? | Did you mean IPTV? |
No one else has deployed it | Android doesn't support DHCPv6 | AWS doesn't support it | Our business intelligence team can't even parse IPv4 logfiles | IPv6 just isn't a priority |