When the program is given a multicast address it should
print the corresponding mac address, along with a list of the 32
overlapped multicast ip addresses.
./ipcalc.pl 224.1.1.1 255.255.255.255
Class D (Multicast) Address: 01-00-5e-01-01-01
Overlapped Addresses
224.1.1.1
224.129.1.1
225.1.1.1
225.129.1.1
226.1.1.1
226.129.1.1
227.1.1.1
227.129.1.1
228.1.1.1
228.129.1.1
229.1.1.1
229.129.1.1
230.1.1.1
230.129.1.1
231.1.1.1
231.129.1.1
232.1.1.1
232.129.1.1
233.1.1.1
233.129.1.1
234.1.1.1
234.129.1.1
235.1.1.1
235.129.1.1
236.1.1.1
236.129.1.1
237.1.1.1
237.129.1.1
238.1.1.1
238.129.1.1
239.1.1.1
239.129.1.1