{"id":"ipv6-subnets-require-custom-mode","text":"IPv6 subnets are only supported on custom mode VPC networks, not auto mode or legacy networks.","truth_value":"IN","source":"entries/2026/03/10/vpc-subnets.md","source_url":"","source_hash":"0a93f184ecf6ad03","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"ipv6-subnets-require-custom-mode","truth_value":"IN","reason":"premise"}]}}