IPv6 Excuse Bingo| AWS doesn't support it | We've still got plenty of IPv4 | It's not mature enough | IPv6 is a security risk | There's no certification track |
| Too many people have broken IPv6 stacks | Github doesn't support IPv6 | End users don't care about IPv6 | We'll deploy IPv6 right after we deploy DNSSEC | I don't want to expose my MAC address |
| IPv6 isn't supported by OVH Cloud | No one else has deployed it | |
We can use RFC6598 | IPv6 is just a fad |
| Our Dynamic DNS doesn't support it | Our recursive DNS can't handle the extra load | We forgot to include IPv6 in our last RFP | Our vendor doesn't support it | IPv6 isn't an Internet Standard yet |
| Larger headers are less efficient | There's no ROI on deploying IPv6 | IPv6 is slower than IPv4 | Android doesn't support DHCPv6 | Our Lawful Intercept doesn't support IPv6 yet |