月初的時候 AWS ALB 支援 IP address 當後端 (AWS ALB 可以設定 IP address 當作後端伺服器了)，然後推出 AWS NLB (AWS 推出新的 Load Balancer：NLB (Network Load Balancer))，然後這個功能也被做到 NLB 上了：「Elastic Load Balancing: Network Load Balancer now supports load balancing to IP addresses as targets for AWS and on-premises resources」。
就如同說明的，這樣可以透過 VPN 架構 (無論是 AWS Direct Connect 或是一般的 IPsec VPN) 共用機房與雲端上的資源：
We are pleased to announce that Network Load Balancers can now distribute traffic to AWS resources using their IP addresses as targets in addition to the instance IDs. You can now also load balance to resources in on-premises locations reachable over AWS Direct Connect and resources in EC2-Classic. Load balancing across AWS and on-premises resources using the same load balancer makes it easy for you to migrate-to-cloud, burst-to-cloud, or failover-to-cloud.
除了中國區以外的 region 都可以用這個功能了：
Load balancing using IP addresses is available today for existing and new Network Load Balancers in all public AWS regions except the China (Beijing) region. You can get started using the AWS Management Console, AWS Command Line Interface (CLI), or AWS SDK.