It's on our roadmap | It's not supported by Google Compute | It's not mature enough | Our recursive DNS can't handle the extra load | Larger headers are less efficient |
It'll break our GeoIP | We've still got plenty of IPv4 | My transit provider doesn't support IPv6 | We would have to rewrite our entire application to support it | We have no roadmap for native IPv6 as we rolled out 6RD. |
We don't need that many addresses | End users don't care about IPv6 | Our Lawful Intercept doesn't support IPv6 yet | IPv6 is just a fad | |
Those stupid Privacy Extension addresses keep changing | IPv6 just isn't a priority | Did you mean IPTV? | Too many people have broken IPv6 stacks | I don't want to lose the security provided by NAT |
Our business intelligence team can't even parse IPv4 logfiles | Our DDOS mitigation platform can't monitor IPv6 | Android doesn't support DHCPv6 | Our Dynamic DNS doesn't support it | Our vendor doesn't support it |