{"id":"internal-nlb-neg-ipv4-only","text":"Internal passthrough NLB zonal NEGs (`GCE_VM_IP`) only support IPv4; instance groups support both IPv4 and IPv6.","truth_value":"IN","source":"entries/2026/03/10/lb-internal.md","source_url":"","source_hash":"049335b111c1b129","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"internal-nlb-neg-ipv4-only","truth_value":"IN","reason":"premise"}]}}