| What do you mean I have to wrap an IP in square brackets? |
IPv6 just isn't a priority |
AWS doesn't support it |
It'll break our GeoIP |
| IPv6 is slower than IPv4 |
NAT444 is fine |
We have IPv6, but we just want to keep things simple |
Our DDOS mitigation platform can't monitor IPv6 |
| There's no certification track |
Our Lawful Intercept doesn't support IPv6 yet |
Hex is hard |
IPv6 addresses are too long to remember |
| Vendor bugs |
We have no roadmap for native IPv6 as we rolled out 6RD. |
We've still got plenty of IPv4 |
Our business intelligence team can't even parse IPv4 logfiles |
Made with excuses from 
IPv6 Excuse Bingo