IPv6 Excuse Bingo| I don't want to expose my MAC address | Azure doesn't support it | IPv6 is a security risk | Too many people have broken IPv6 stacks | IPv6 is slower than IPv4 |
| We forgot to include IPv6 in our last RFP | We don't have a lab to test it | Those stupid Privacy Extension addresses keep changing | Vendor bugs | It's not mature enough |
| There's no certification track | It's too complicated | |
IPv6 addresses are too long to remember | AWS doesn't support it |
| We would have to rewrite our entire application to support it | We'll deploy IPv6 next financial year | Our DDOS mitigation platform can't monitor IPv6 | IPv6 isn't an Internet Standard yet | NAT444 is fine |
| My transit provider doesn't support IPv6 | What do you mean I have to wrap an IP in square brackets? | Did you mean IPTV? | Our Dynamic DNS doesn't support it | It'll break our GeoIP |