Capture VLAN tag with wireshark
Wireshark is widely used for Ethernet communication development. (My industry is power system and substation automation) I have some projects clearly require supporting the Ethernet packets with & without VLAN tag. In this case, we need consider the following conditions for validation. 1. The publisher send the packets with/without VLAN tag 2. The Ethernet Switch can be setup to keep/remove the VLAN tag 3. The subscriber may see / not see the VLAN tag depend on the OS and driver configuration. Typically wireshark is used as an validation tool. Here is the link from wireshark https://wiki.wireshark.org/CaptureSetup/VLAN My environment is windows + USB3 Ethernet Adapter (ASIX AX88179), there is an solution from the vendor: Please set the "Packet Priority & VLAN" parameter of ASIX USB to LAN Windows drivers to "Packet Priority & VLAN Disable" to capture the VLAN tagged packets on WireShark.