eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.21.221  netmask 255.255.0.0  broadcast 192.168.255.255
        ether 52:54:00:9f:be:56  txqueuelen 1000  (Ethernet)
        RX packets 46477  bytes 3300442 (3.1 MiB)
        RX errors 0  dropped 80  overruns 0  frame 0
        TX packets 3274  bytes 859310 (839.1 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 1244  bytes 124226 (121.3 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 1244  bytes 124226 (121.3 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

