ICMP messages

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In TRBOnet Watch ICMP messages appear when nobody pings the radio.

ICMP is The Internet Control Message Protocol.

A radio can send ICMP messages when it is not properly configured or when it receives a command which is not supposed for or supported by the radio.

For example, it might be that some services' ports are mismatch or not specified so that the radio cannot send or receive some commands (ARS, GPS, TMS, etc.) to a radio system.

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