eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.21.64  netmask 255.255.0.0  broadcast 192.168.255.255
        ether 52:54:00:cb:c3:45  txqueuelen 1000  (Ethernet)
        RX packets 611786418  bytes 881620098626 (821.0 GiB)
        RX errors 0  dropped 772389  overruns 0  frame 0
        TX packets 95599119  bytes 13156935236 (12.2 GiB)
        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 120279  bytes 162734168 (155.1 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 120279  bytes 162734168 (155.1 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

