matrix_21: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 21.0.198.1  netmask 255.255.255.0  broadcast 21.0.198.255
        inet6 fe80::18ac:47ff:feb0:5a6b  prefixlen 64  scopeid 0x20<link>
        ether 1a:ac:47:b0:5a:6b  txqueuelen 1000  (Ethernet)
        RX packets 11  bytes 866 (866.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 22  bytes 1812 (1.7 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0