- From the Analyze menu, open Expert Information. Errors are listed at the top of the window:
In the preceding window that is brought as an example, you can see checksum errors; in this case, it can be because of real errors or offload.
- Clicking on a specific error takes us to the packet pane to see the error in the packet itself. This is presented in the following screenshot:
What you see in this event is a checksum error, and that the checksum is incorrect. In this case (file CAP_07_05), we see that all errors are coming from a single device, which is a good point to start to look where the problem is coming from. More about Ethernet and Ethernet errors later, in Chapter 8, Ethernet and LAN Switching.