Update the IPAM IP address pools for your Application Load Balancer

IPAM IP address pools must first be created within IPAM before they can be used by your Application Load Balancer. For more information, see Bring your IP addresses to IPAM.

Console

To update the IPAM IP address pool

1. Open the Amazon EC2 console at https://console.aws.amazon.com/ec2/.

2. On the navigation pane, choose Load Balancers.

3. Select the load balancer.

4. On the Network mapping tab, choose Edit IP pools.

5. Under IP pools, select Use IPAM pool for public IPv4 addresses and choose an IPAM pool.

6. Choose Save changes.

AWS CLI

To update the IPAM IP address pool

Use the modify-ip-pools command.

aws elbv2 modify-ip-pools \
    --load-balancer-arn load-balancer-arn \
    --ipam-pools Ipv4IpamPoolId=ipam-pool-1234567890abcdef0

CloudFormation

To update the IPAM IP address pool

Update the AWS::ElasticLoadBalancingV2::LoadBalancer resource.

Resources:
  myLoadBalancer:
    Type: 'AWS::ElasticLoadBalancingV2::LoadBalancer'
    Properties:
      Name: my-alb
      Type: application
      Scheme: internet-facing
      IpAddressType: ipv4
      Subnets: 
        - !Ref subnet-AZ1
        - !Ref subnet-AZ2
      SecurityGroups: 
        - !Ref mySecurityGroup
      Ipv4IpamPoolId: !Ref myIPAMPool