rtk0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
address: 00:40:95:10:12:08
media: Ethernet autoselect (100baseTX full-duplex)
status: active
inet 10.255.246.1 netmask 0xffffff00 broadcast 10.255.246.255
why it's SIMPLEX while it's full duplex?