How is the licensing information communicated when I perform licensing operations?
When the licensing server to perform licensing operations, your system uses a minimal number of HTTP (web) packets via port 80 (the normal web port) or HTTPS (secure web) packets via port 443 (the normal secure web port).
You can use network packet-capture software to verify the nature of information being communicated — e.g., on OS X, issue the Terminal command:
sudo tcpdump -pxX -vv -s 0 host www.derman.com