johngg@shiraz:~/perl/Monks > ./spw1174132 1.2.3.4/18

IP address   : 00000001 00000010 00000011 00000100 : 1.2.3.4
Netmask      : 11111111 11111111 11000000 00000000 : 255.255.192.0
Network      : 00000001 00000010 00000000 00000000 : 1.2.0.0/18
Low address  : 00000001 00000010 00000000 00000001 : 1.2.0.1
High address : 00000001 00000010 00111111 11111111 : 1.2.63.255

Address range
     1.2.0.1
     1.2.0.2
     1.2.0.3
     1.2.0.4
     1.2.0.5
     1.2.0.6
     1.2.0.7
     1.2.0.8
     1.2.0.9
     1.2.0.10
     1.2.0.11
     1.2.0.12
     1.2.0.13
     1.2.0.14
     1.2.0.15
     1.2.0.16
     1.2.0.17
...
     1.2.63.241
     1.2.63.242
     1.2.63.243
     1.2.63.244
     1.2.63.245
     1.2.63.246
     1.2.63.247
     1.2.63.248
     1.2.63.249
     1.2.63.250
     1.2.63.251
     1.2.63.252
     1.2.63.253
     1.2.63.254
     1.2.63.255