Can I assign a private IP to NAT gateway

Anchal Singh 0

Hi I want my logic apps to make API calls using a STATIC PRIVATE IP. Can I assign a private IP to the NAT gateway?

The logic app will send API request to an internal server so I want this to route internally not over the public internet.

Zafer KAYA 20 Reputation points MVP

2025-01-20T11:35:32.25+00:00
Create a Virtual Network (VNet):

Create a VNet if you don't have one already.

Ensure your Logic Apps are integrated with this VNet.

Set up a Private Endpoint for Logic Apps:

Azure Logic Apps can be configured to connect to your VNet using a Private Endpoint.

Create a Private Endpoint for your Logic App. This will ensure that all traffic from the Logic App to the API goes through your VNet, keeping it internal.

Create a NAT Gateway:

A NAT Gateway allows your VNet to access resources over the internet or external services, but using a private IP.

Create a NAT Gateway and associate it with the subnet in the VNet that your Logic Apps will use.

Assign Static Private IP to NAT Gateway:

When setting up the NAT Gateway, assign a static private IP from the subnet to ensure the outbound traffic from the Logic App always uses this private IP.

You need to ensure that the subnet where your Logic App runs is using this NAT Gateway for outbound traffic.

Route traffic through NAT Gateway:

In the Route Table associated with the subnet where the Logic App is deployed, ensure that the route is directed to the NAT Gateway.

This ensures that any outbound traffic from your Logic App to the internal server stays within the private network.

Ensure Internal Server Accessibility:

Verify that the internal server where your Logic App will send API requests is accessible from the VNet.

The internal server should have the appropriate network security group (NSG) rules and private IP address configured to accept traffic from the Logic Apps.

Testing:

Once configured, test the API calls from your Logic App to ensure the traffic is routed over the private network and uses the static private IP of the NAT Gateway.

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Can I assign a private IP to NAT gateway

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