How to setup EC2 for Ping responses

When we created a new instance in aws ec2, by default aws security group block all protocol and port.

AWS security groups block ICMP (including ping, traceroute, etc.) by default. You need to explicitly enable it.

So, enable ICMP protocol (ping response) follow below steps.

    Go to EC2 Dashboard and click "Running Instances"
    on "Security Groups", select the group of your instance which you need to add security.
    click on the "Inbound" tab
    Click "Edit" Button (It will open a popup window)
    click "Add Rule"
    Select the "Custom ICMP rule - IPv4" as Type
    Select "Echo Request" as the Protocol (Port Range by default show as "N/A)
    Enter the "0.0.0.0/0" as Source
    Click "Save"


This will add the new entry. Once above configuration is done, you should be able to ping your freshly set up amazon web service EC2 instance. 


References:
https://www.serverkaka.com/2018/03/ping-aws-ec2-instance.html