port_DUS: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 4.0.1.1  netmask 255.255.255.0  broadcast 4.0.1.255
        inet6 fe80::34f4:f2ff:fe97:5ac0  prefixlen 64  scopeid 0x20<link>
        ether 36:f4:f2:97:5a:c0  txqueuelen 1000  (Ethernet)
        RX packets 673  bytes 58655 (57.2 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 627  bytes 54126 (52.8 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0