Associate public IP addresses
A public IP address resource can be associated with virtual machine network interfaces, internet-facing load balancers, VPN gateways, and application gateways. You can associate your resource with both dynamic and static public IP addresses.
Things to consider when associating public IP addresses
The following table summarizes how you can associate public IP addresses for different types of resources.
| Resource | Public IP address association | Dynamic IP address | Static IP address |
|---|---|---|---|
| Virtual machine | NIC | Yes | Yes |
| Load balancer | Front-end configuration | Yes | Yes |
| VPN gateway | VPN gateway IP configuration | Yes | Yes * |
| Application gateway | Front-end configuration | Yes | Yes * |
* Static IP addresses are available on certain SKUs only.
Public IP address SKUs
When you create a public IP address, you select the Basic or Standard SKU. Your SKU choice affects the IP assignment method, security, available resources, and redundancy options.
The following table summarizes the differences between the SKU types for public IP addresses.
| Feature | Basic SKU | Standard SKU |
|---|---|---|
| IP assignment | Static or Dynamic | Static |
| Security | Open by default | Secure by default, closed to inbound traffic |
| Resources | Network interfaces, VPN gateways, Application gateways, and internet-facing load balancers | Network interfaces or public standard load balancers |
| Redundancy | Not zone redundant | Zone redundant by default |