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I am looking for a software that would fulfill the following requirements:

  • Able to "sniff" communication over RS232 (like PortMon and Advanced Serial Data Logger)
  • Able to listen to a given address/port for TCP/UDP broadcasts (like Hercules)
  • Optionally could "sniff" IEEE488 communication
  • Optimally would be free

Is there such a magical tool?

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