Inactive interfaces, PPPOE connection

[smitmartijn]

Nope, the "failed to open" message is about getting a description for the interface. Unfortunately the capturing methods in the OS that the client leverages don't seem to be able to handle PPPOE interfaces, there are others having issues with other applications that capture traffic as well. I don't think there's anything you can do about it, if the client doesn't get data, it can't process it..