IP address does not belong to the range of subnet prefix

Terraform Providers Azure
1

Hi,

I’m getting an error which I am not sure why. So I have this:


# Create public IP
resource "azurerm_public_ip" "nix-ip" {
  name                = "nix-public-ip"
  location            = azurerm_resource_group.main.location
  resource_group_name = azurerm_resource_group.main.name
  allocation_method   = "Static"
}

resource "azurerm_subnet" "subnet-dmz" {
  name                 = "subnet"
  resource_group_name  = azurerm_resource_group.main.name
  virtual_network_name = azurerm_virtual_network.main.name
  address_prefixes     = [var.dmz_subnet_cidr]
}

# Creat NIC 
resource "azurerm_network_interface" "nix_nic" {
  name                = "nix-nic"
  location            = azurerm_resource_group.main.location
  resource_group_name = azurerm_resource_group.main.name
  ip_configuration {
    name                          = "static"
    subnet_id                     = azurerm_subnet.subnet-dmz.id
    private_ip_address_allocation = "Static"
    private_ip_address            = cidrhost(var.dmz_subnet_cidr, 10)
    public_ip_address_id          = azurerm_public_ip.nix-ip.id
  }
}

In my vars.tf file, I have this:

variable "dmz_subnet_cidr" {
  description = "CIDR to use for the DMZ subnet"
  default     = "10.0.4.0/24"
}

variable "lan_subnet_cidr" {
  description = "CIDR to use for the lan subnet"
  default     = "10.0.3.0/24"
}

Then I get this error

image
image1816×155 27.4 KB

But why does it say IP address 10.0.4.10 doesn’t work to use here? That IP is correct for this linux.tf file I am creating since it should be in the dmz_subnet_cidr, and not in lan_subnet_cidr? Not sure why terraform requires me to have that IP in the wrong subnet(10.0.3.0/24)?