无需EC2实例：在VPC子网静态IPv4上响应ICMP Ping的AWS资源方案咨询

Hey there, I totally get where you're coming from—dealing with EC2 instance management, OS updates, ASGs, and ENI setup feels like overkill when all you need is a simple, static IP that responds to ping. Let's dive into some creative, low-maintenance alternatives that fit your needs:

• AWS Global Accelerator + Application Load Balancer (ALB)
  While ALBs don't have static IPs on their own, pairing one with Global Accelerator gives you static Anycast IPs that route directly to your ALB. Since ALBs do respond to ping requests, you'll end up with a set of permanent, globally accessible IPs that answer pings. Best part? It's fully managed—no servers to patch or maintain, just a few clicks to set up. The cost is minimal too, since ping traffic is tiny.

• Minimal Fargate Task
  Ditch EC2 for a super lightweight Fargate container. Use a tiny base image like alpine:latest (it's only ~5MB) and configure it to allow ICMP traffic (Alpine allows this by default if your security group permits ping). Assign a static Elastic IP (EIP) to the task's ENI (using the awsvpc network mode). You won't have to worry about OS updates here—if you ever need to make changes, just redeploy the container image with zero downtime. It's way less overhead than managing an EC2 instance, and still gives you that static pingable IP.

• AWS Network Firewall with Custom ICMP Response
  Create a standalone Elastic Network Interface (ENI) in your target subnet, attach an EIP to it, then set up AWS Network Firewall rules to automatically reply to ICMP ping requests sent to that EIP. This is a pure network-level solution with no compute resources involved—completely managed by AWS. The setup is a bit more involved than the other options, but it's a great "set it and forget it" choice if you want zero ongoing maintenance.

I know you mentioned ECS/Fargate felt like more effort than EC2, but the minimal container approach is actually way simpler once you set it up—no OS patching, no ASG config, just a basic task definition that runs a tiny image.

备注：内容来源于stack exchange，提问作者boffbowsh