How can I know the current active connections of Gbridge network and bandwidth usage?
Use the Links tab in main window to know which connections are currently active and their activities, such as connection type, upload/download speed and amount of data transferred. You can manually tear down the connection by resetting individual connections. The global flow control which applies to all the active connections, such as maximum upload speed, can be configured from Options/Network Bandwidth menus. An interesting thing in this Links tab is that you can see your real IP and virtual Gbridge IP mappings.