IPv6 Excuse Bingo| We can use RFC6598 | I don't want to expose my MAC address | IPv6 isn't an Internet Standard yet | AWS doesn't support it |
| Github doesn't support IPv6 | Larger headers are less efficient | IPv6 is a security risk | Our vendor doesn't support it |
| We don't need that many addresses | No one else has deployed it | There's no ROI on deploying IPv6 | IPv6 is just a fad |
| IPv6 addresses are too long to remember | Our Lawful Intercept doesn't support IPv6 yet | End users don't care about IPv6 | It's not mature enough |