{"id":"azure-nsg-platform-ips-exempt-by-default","text":"Platform IPs 168.63.129.16 and 169.254.169.254 (DHCP, DNS, IMDS, health monitoring) are exempt from NSG rules by default but can be blocked using service tags (AzurePlatformDNS, AzurePlatformIMDS, AzurePlatformLKM).","truth_value":"IN","source":"entries/2026/03/11/vnet-nsg.md","source_url":"","source_hash":"7770db13ddbe6897","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"azure-nsg-platform-ips-exempt-by-default","truth_value":"IN","reason":"premise"}]}}