host: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 21.103.0.2  netmask 255.255.255.0  broadcast 21.103.0.255
        inet6 fe80::c47a:8cff:fe73:2a0b  prefixlen 64  scopeid 0x20<link>
        ether c6:7a:8c:73:2a:0b  txqueuelen 1000  (Ethernet)
        RX packets 15  bytes 1146 (1.1 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 227  bytes 17802 (17.3 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0