tests 4 3 2 7 192.168.5.2 0 0.0.0.0 ('0.0.0.0','255.255.255.255') 192.168.5.20 32 192.168.5.20 ('192.168.5.20','192.168.5.20') 255.255.255.255 16 255.255.0.0 ('255.255.0.0','255.255.255.255') 192.142.32.2 32 192.142.32.2 ('192.142.32.2','192.142.32.2') 192.172.5.2 16 192.172.0.0 ('192.172.0.0','192.172.255.255') 0.0.0.0 8 0.0.0.0 ('0.0.0.0','0.255.255.255') 255.0.0.0 4 240.0.0.0 ('240.0.0.0','255.255.255.255') ('0.0.0.0','255.255.255.255') ('255.0.0.0','255.255.255.255') ('192.168.5.2','192.168.5.2') ('0.0.0.0','0.255.255.255') ('240.0.0.0','255.255.255.255') ('240.0.0.0','255.255.255.255') ('248.0.0.0','255.255.255.255')