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OCI Networking: implementing Static IP Assignment for Load Balancer on Specific Subnet

👀 Views: 2 đŸ’Ŧ Answers: 1 📅 Created: 2025-06-11
oci load-balancer networking Python

I'm sure I'm missing something obvious here, but I'm integrating two systems and I'm relatively new to this, so bear with me... I'm stuck on something that should probably be simple... I'm currently working on setting up a load balancer in OCI with a static IP, but I'm running into issues when I try to assign it to a specific subnet. After creating the load balancer using the OCI Console, I attempted to set a static public IP through the API, but I keep receiving the behavior: `"InvalidParameter: The specified public IP is not in the expected range for this subnet."` I'm using the `oci` Python SDK version 2.36.0 for deployment. Here's the code snippet I used for creating the load balancer and assigning the static IP: ```python import oci config = oci.config.from_file("~/.oci/config") load_balancer_client = oci.load_balancer.LoadBalancerClient(config) # Define the load balancer details lb_details = { 'compartment_id': 'ocid1.compartment.oc1..exampleuniqueID', 'display_name': 'my-load-balancer', 'subnet_ids': ['ocid1.subnet.oc1.phx.exampleuniqueID'], 'backend_sets': {...}, # Backends configuration here 'listener': {...}, # Listener configuration here } # Create load balancer response = load_balancer_client.create_load_balancer(lb_details) # Attempt to assign static IP ip_details = { 'lifecycle_state': 'ACTIVE', 'public_ip': '203.0.113.10', # Static IP 'subnet_id': 'ocid1.subnet.oc1.phx.exampleuniqueID' } load_balancer_client.assign_public_ip_to_load_balancer(response.data.id, ip_details) ``` I've double-checked that the static IP `203.0.113.10` is indeed allocated and should be usable within the specified subnet. I also verified the subnet CIDR range includes this public IP. I've tried recreating the load balancer with different subnets, and I've also attempted to assign the static IP via the OCI Console, but I encounter the same scenario. Does anyone have insights on what might be going wrong? Is there a specific configuration or limitation I need to be aware of when assigning static IPs to load balancers in OCI? What's the best practice here? Any feedback is welcome! I'm working on a service that needs to handle this. What's the best practice here?