IPv6 addresses are too long to remember | IPv6 isn't supported by OVH Cloud | NAT444 is fine | Our DDOS mitigation platform can't monitor IPv6 | Our business intelligence team can't even parse IPv4 logfiles |
It's not mature enough | We have IPv6, but we just want to keep things simple | We don't need that many addresses | It'll break our GeoIP | What do you mean I have to wrap an IP in square brackets? |
IPv6 is just a fad | What's IPv6? | IPv6 is a security risk | Can't we just buy more IPv4 addresses? | |
Our Lawful Intercept doesn't support IPv6 yet | Larger headers are less efficient | End users don't care about IPv6 | I don't want to lose the security provided by NAT | We can use RFC6598 |
It'll make it easier for the government to track me | Android doesn't support DHCPv6 | It's too complicated | It's too hard to support | Our Dynamic DNS doesn't support it |