Low FAT 6.2

I can not configure the network on the 2 nd image extracted with lowfat. The guide says this:

Quote

Step 6: Networkproblems
If the network of your Dreambox doesn't work when you are booted with LowFAT then you can test it in the config Menu of the LowFAT Plugin on yellow button.
If there the Mac address is shown as 00:00:00:00:00:00, then you can use the Networkfix there. For this you maybe have to boot without LowFAT to lookup in telnet with ifconfig or within the bios the Mac address of your Dreambox.

but I can not understand how.

I know MAc of my Decoder but I can't find and verify this " ...you can test it in the config Menu of the LowFAT Plugin on yellow button ...)