port_DUS: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 21.0.2.2  netmask 255.255.255.0  broadcast 21.0.2.255
        inet6 fe80::5c1f:23ff:feba:9c07  prefixlen 64  scopeid 0x20<link>
        ether 5e:1f:23:ba:9c:07  txqueuelen 1000  (Ethernet)
        RX packets 44  bytes 4156 (4.0 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 38  bytes 3304 (3.2 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0