The result of SIOCGIFFLAGS on lo is 49.
The result of SIOCGIFADDR is 7f.00.00.01.
The result of SIOCGIFHWADDR is type 772  00:00:00:00:00:00.
The result of SIOCGIFFLAGS on eth0 is 1043.
The result of SIOCGIFADDR is ffffff82.1d.ffffffe8.36.
The result of SIOCGIFHWADDR is type 1  00:1b:21:d7:ab:6f.
