wireshark

<h3>CAN</h3> <p>Wireshark is a well-known network packet sniffer. Since 2009 it is also capable of capturing CAN frames via SocketCAN interface in Linux. Just configure and activate your CAN interface and it will show up as one of the available sniffing interfaces. The image below shows CAN frames captured via USB-CAN adapter (slcan driver).</p>