I set up site-to-site vpn to connect to my on-premises from the aws instance. The route table, network acl, sec group, etc. all looking good. I noticed that I am able to ping aws using aws private ip from my on-premises. But, I am unable to ping on-premises from ec2 instance?
ping AWS-PRIVATE-IP from On-Prem "works"
ping ON-PREM-PRIVATE-IP from aws "does not work"
What could be the possible reason for the failure, as I crossed-check everything and it is look good.
Route Table:
Network ACL:
