Describes the cause and action for error messages.
Error Message(English)：
elastic ip not pinging
Cant ping AWS IPV4 Public IP
https://stackoverflow.com/questions/49928213/cant-ping-aws-ipv4-public-ip
Why can't I ping an aws instance by public IP even though I ...
https://stackoverflow.com/questions/41486779/why-cant-i-ping-an-aws-instance-by-public-ip-even-thoug・・・
Cannot ping or ssh to amazon instance launched in VPC
https://stackoverflow.com/questions/38023645/cannot-ping-or-ssh-to-amazon-instance-launched-in-vpc
AWS Elastic IP Unable to Send Traffic
https://stackoverflow.com/questions/32014542/aws-elastic-ip-unable-to-send-traffic
EC2: unable to ping Elastic IP adress after attaching it to ...
https://www.reddit.com/r/aws/comments/8wnizv/ec2_unable_to_ping_elastic_ip_adress_after/
Why can't I reach my Amazon EC2 instance via its Elastic IP ...
https://serverfault.com/questions/356598/why-cant-i-reach-my-amazon-ec2-instance-via-its-elastic-ip-・・・
ssh - Why can't I ping my freshly set up amazon web service ...
https://serverfault.com/questions/511738/why-cant-i-ping-my-freshly-set-up-amazon-web-service-ec2-in・・・
networking - Not possible to ping non-primary elastic IPs
https://serverfault.com/questions/822821/not-possible-to-ping-non-primary-elastic-ips
amazon web services - Elastic IP not pingable with AWS
https://serverfault.com/questions/628257/elastic-ip-not-pingable-with-aws