eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.21.46  netmask 255.255.0.0  broadcast 192.168.255.255
        ether 52:54:00:40:d1:66  txqueuelen 1000  (Ethernet)
        RX packets 612144523  bytes 881873439304 (821.3 GiB)
        RX errors 0  dropped 213597  overruns 0  frame 0
        TX packets 99058264  bytes 13371749303 (12.4 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 122488  bytes 162842457 (155.2 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 122488  bytes 162842457 (155.2 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

