| Did you mean IPTV? |
Larger headers are less efficient |
IPv6 isn't an Internet Standard yet |
Azure doesn't support it |
| We've still got plenty of IPv4 |
Too many people have broken IPv6 stacks |
Can't we just buy more IPv4 addresses? |
NAT444 is fine |
| IPv6 is just a fad |
We'll deploy IPv6 next financial year |
It's not mature enough |
It's on our roadmap |
| Our vendor doesn't support it |
My transit provider doesn't support IPv6 |
Those stupid Privacy Extension addresses keep changing |
It's too hard to support |
Made with excuses from 
IPv6 Excuse Bingo