This Article Applies From:
A dedicated Network Capture menu has been included in the CONNECT since version 220.127.116.11.
It allows for the troubleshooting of Network connection issues by capturing then saving to file all frames for a selected network interface.
TABLE OF CONTENTSIntroduction2- Network capture procedure
1- Pre- requisites
A CONNECT with version 18.104.22.168 or higher installed.
A CVIKey with either Maintenance operator or Administrator permissions. Alternatively, simply add the Diagnostics and Maintenance actions permission to an existing CVIKey / Profile.
2- Network capture procedure
Before running any of the below process, plug the CVIKey to an available USB port on the CONNECT.
2-1 Default procedure
Navigate to Maintenance > System > Networks > Network Capture menu.
If the CVIKey does not have the correct permission, the Start button is greyed and the system will request for a valid CVIKey to be connected.
Select capture target Interface from the corresponding Drop-down menu: interface list will depend on your configuration and the corresponding CVIConfig > Networks settings.
If no additional filtering is required simply click on the Start button.
The system starts capturing network data frames for target Interface and saving them to the CVIKey.
To stop the capture, simply click the Stop button.
Remove the CVIKey from the CONNECT then connect it to a computer: a file with a .pcapng extension should have been created.
If Wireshark is installed on your computer, the file will be recognised as a Wireshark capture.
It is then possible to load the file via Wireshark to analyse exchanged data frames.
2-2 Advanced procedure
It is possible to restrict the capture when the fault being troubleshooted has previously been narrowed down. This can be particularly useful, for example, when troubleshooting communication between a CONNECT and a Battery tool, or between a CONNECT and the corresponding factory automated control system.
- It is possible to restrict the capture to a particular IP address: in such a case, the capture will only be done for all network communication done between CONNECT selected Interface and target IP address. To perform such a capture, fill the IP address field with the information of the target device. Warning: the target IP address must be consistent with the selected interface network configuration.
- It is possible to restrict the capture to a particular port: in such a case, only communication using specified target port will be used. This can be useful, for example, when using battery tools setup for DHCP connection: in such a case, only the connection port is known from the system beforehand, the IP address of the target tool being provided by a third-party system.