You want to see the firewall ruleset that has been created in the Symantec Endpoint Protection Manager (SEPM) from the Symantec Endpoint Protection (SEP) interface.
The "Configure Firewall Rules" feature on the client is for the user-defined ruleset. This is for the local client only.
With a policy that has Mixed Control mode enabled under -> Location-specific Settings -> Client User Interface Control Settings for the client group, open the SEP agent interface:
This will show all the administrator defined rules (created in the SEPM and applied by policy) and the user defined rules.