This doesn't seem to work for me. I acquired 2 Dell VEPs from scrap when I worked at Dell from one of the labs, so I am wondering if I have some sort of experimental build. Reading thru this thread, it seems my units are completely different from everyone else. Mine are just branded "DELL EMC" with no Model #, none of the firmware updates from Dell's website work on it, and also, those 2 buttons people are pressing that are by the power button... on mine, the buttons on are on the opposite part of the board, near the SFP ports, pressing the one closest to the SFP port does nothing, and the one furthest away from the SFP port just reboots the module.You already got it working, but if you press the button on the PCB closes to then power plug long enough, the device will power off.
When powered on again, all interfaces will be available.
In OPNsense, I am only able to see ix0 and ix1, which are the SFP ports. I have RJ45 SFPs in them, and when I connect either of them to my PC I get a link light, but when I connect them to my WAN / switch I get no link. So I'm assuming something odd is happening with speed negotiating. Any who, I'll probably end up tinkering with them for a few more hours. I've spent countless hours already trying to get them to work already.. they'll probably end up on eBay by the end of the week.