The result of SIOCGIFFLAGS on lo is 49.
The result of SIOCGIFADDR is 00.00.7f.00.
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 00.00.ffffffc0.ffffffa8.
The result of SIOCGIFHWADDR is type 1  00:26:b9:35:90:4c.
