Wireshark is an free, open source, network protocol analyzer available for
download at http://www.wireshark.com.
Although Wireshark cannot be used to capture LayGO DLM data in real time, it
can be used to decode and analyse DLM capture files if the files are converted
to a format Wireshark can read. The utility dlm2cap
converts a DLM file to
CAP file format which Wireshark can read.
The monitor prorgam wxdlmmonitor
also has a File → Convert capture file... option.
To load a converted capture file into Wireshark, select File → Open....
For details about how to get, install and use Wireshark, see the Wireshark User's Guide.