169.254.169.254 and 168.63.129.16 on Azure Stack
If you configure restricted NSG without "Internet" service tag on Azure Stack, you need to consider 169.254.169.254 and 168.63.129.16. This entry is the summary of my investigation about 169.254.169.254 and 168.63.129.16 on Azure Stack. Environment ASDK 1908 in @syuheiuda 's physical container Ref:https://thinkit.co.jp/article/13243 169.254.169.254 169.254.169.254 is an instance metadata service. A virtual machine needs to access 169.254.169.254 during the deployment process. If the NSG which is attached to the virtual machine blocks the outbound traffic to 169.254.169.254, the deployment of this virtual machine becomes a timeout and fails. ...