| We would have to rewrite our entire application to support it |
It's too hard to support |
IPv6 is slower than IPv4 |
None of our customers want it |
| What's IPv6? |
Those stupid Privacy Extension addresses keep changing |
Our DDOS mitigation platform can't monitor IPv6 |
It's not supported by Google Compute |
| Our business intelligence team can't even parse IPv4 logfiles |
We don't need that many addresses |
Vendor bugs |
Too many people have broken IPv6 stacks |
| IPv6 is just a fad |
We've still got plenty of IPv4 |
My transit provider doesn't support IPv6 |
Our Dynamic DNS doesn't support it |
Made with excuses from 
IPv6 Excuse Bingo