We have EBS R12.1.3 on amazon cloud which we used for training our clients. We can access the instance successfully from our office or at home, But when we are the client and connected to thier network we can not access it.
I am suspecting that they have firewall? How do I check if our Cloud server URL is allowed in their firewall? Is the test of ping the IP of our cloud server enough?
I mean if we can ping the IP address of our cloud server , this means we can access our cloud EBS instance from their network? or do we need to allow also port 8000 to their firewall?
Thanks a lot,