port_KAS: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 21.0.3.1  netmask 255.255.255.0  broadcast 21.0.3.255
        inet6 fe80::9479:b2ff:fe63:772c  prefixlen 64  scopeid 0x20<link>
        ether 96:79:b2:63:77:2c  txqueuelen 1000  (Ethernet)
        RX packets 36  bytes 3372 (3.2 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 32  bytes 2936 (2.8 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0