The utility may be accessed in a number of ways:
Once the utility has been launched be sure to set the IEEE / IP address in the utility to match the simulator you're using. Once this setting has been made a quick check can be made using the pre-loaded command 'Identity' - if configured correctly the simulator will respond with a text string that includes made by,the model type, output mode, flags, serial number and CPU firmware version.
An example return string from the command could be:
Spirent-GSS, GSS8000 L1P1:L2P1:L1P2 24000011, 8345, 02.15
Where we have a GSS8000 serial number 8345 and CPU firmware 02.15.