The ES5 network is decentralized from a P2P perspective. While the network is distributed, many other functions including movie streaming are done from centralized servers. Ras told Slyck that the software is undergoing constant development with new versions been issued on a near daily basis. A key feature they are working on the "green light" file verification feature.
Communication
EarthStation5 supports TCP and UDP protocols. EarthStation5 use TCP port 1002 as its default login port.
If TCP port 1002 is blocked, then EarthStation5 will fail to login.
How to block EarthStation5?
Because EarthStation5 login port is only TCP port 1002, so you can block them only by
disable the ports in the firewall.