Ethernet Status Lights
The two ethernet ports are connected to an unmanaged switch. When in u-boot, both link lights on the switch are on; both lights on the ClearFog are on with a high duty cycle, but constantly flickering. After control is passed to the FreeBSD kernel, the link light on the switch corresponding to the second ethernet port goes out and the link light on the ClearFog stays on without flickering.
The console (and dmesg) indicate that the second ethernet port has no carrier. I don't think that is a hardware problem, because, without touching the connections or the switch, an SD card with a Debian image can be inserted and both ethernet ports are fully functional.
What configuration might be required so that the interface detects a carrier?
pygr
Ethernet Status Speed 1gbps
The Ethernet WAN connection is the incoming internet signal to the router. If you have no internet anywhere in your house and if ondemand does not work, that will mean your WAN connection is probably down. You could also potentially have a COAX WAN connection that will bring your internet to the router over the coax cord. It will list both the network adapters being used, as well as those that have been used in the past, on the computer. It will give you three statuses of the devices: Active devices will be shown with a green status icon. Non-operational devices will be shown with a yellow status icon. Disconnected devices will be shown with a red status icon. Status LEDs for Ethernet Ports and the Network Management Port. Each Ethernet port has two status LEDs that provide connection information. Two additional LEDs provide the same information for the service processor network management port. LinkOFF could indicate the Ethernet cable is unplugged or defective. This feature is only available when using the W5200 and W5500 Ethernet controller chips. This page does not represent the entire state of the ethereum network - listing a node on this page is a voluntary process.