Summary
This article describes how to capture network traffic using Wireshark for TRBOnet Support analysis in different troubleshooting scenarios: constantly reproducible issues, sporadic issues, and system availability issues.
If you are experiencing voice quality issues and need TRBOnet Support to analyze network traffic, voice encryption must be temporarily disabled on the transmitting side before starting the capture.
• Test portable radio: disable encryption on the radio channel.
• Dispatch Console: click the lock icon on the PTT box.
• PTT-over-Cellular: disable encryption in the server settings.
Installation
1. Download Wireshark: wireshark.org/download.
2. During installation, enable the Npcap component — it is required for packet capture.
Case 1: Issue is constantly reproducible
Example: poor voice quality between TRBOnet and Radio System.
1. Launch Wireshark.
2. Select all network interfaces: (or ).
3. Click Start.
4. Reproduce the problem (make a test call).
5. Stop recording: red square or .
6. Save the file ( or ).
7. Archive the log (ZIP).
Send us
• Collected logs in archive
• IP addresses of sender and receiver
• TRBOnet logs
• Audio recording of the problematic call so we can correlate it with network traffic
Case 2: Issue is sporadic
Example: Intermittent Poor Voice Quality Between TRBOnet and Radio System (during peak hours).
1. Launch Wireshark.
2. Select the interface connected to the radio system: (or ).
3. In the Capture filter field, specify a filter.
4. In the Output section:
• Specify the path for files
• Enable Use multiple files
• Configure segmentation: 50 MB
5. Click Start.
6. Wait for the problem to manifest.
7. Stop recording: red square or .
8. Archive the log (ZIP).
Filter Examples
Traffic only from IP 192.168.1.1:
host 192.168.1.1
Traffic from subnet 192.168.1.0/24:
net 192.168.1.0/24
Other filters: wiki.wireshark.org/CaptureFilters
Send us
• IP addresses of sender and receiver
• TRBOnet logs
• Audio recording of the problematic call so we can correlate it with network traffic
Case 3: System availability issues
1. Launch Wireshark.
2. Select all network interfaces: (or ).
3. Click Start.
4. Launch the console with administrator privileges. In the bottom-left corner, among the system icons, select the desired system and click .
This is preferable, as it does not restart the server and does not disrupt connections with dispatchers.
This is preferable, as it does not restart the server and does not disrupt connections with dispatchers.
5. Reproduce the problem.
6. Stop recording: red square or .
Send us
• IP addresses of sender and receiver
• TRBOnet logs