Omadbek Qosimov's blog
prefix = 18
mask_2 = prefix*"1"+(32-prefix)*"0"
mask_2 = [mask_2[i:i+8] for i in range(0, len(mask_2), 8)]
mask_2 = [str(int(i,2)) for i in mask_2]
mask_int = [int(i) for i in mask_2]
print(".".join(mask_2))
ip = "142.132.165.25"
ip = ip.split(".")
ip = [bin(int(i))[2:].zfill(8) for i in ip]
ip = "".join(ip)
ip = ip[:prefix]+"0"*(32-prefix)
ip = [ip[i:i+8] for i in range(0, len(ip), 8)]
ip = [str(int(i,2)) for i in ip]
ips = [int(i) for i in ip]
delta = [255-mask_int[i] for i in range(4)]
brodcast = [str(delta[i]+ips[i]) for i in range(4)]
ip = ".".join(ip)
last = int(ip[-1]) +1
first = ip[:-1]+str(last)
print(delta)
print(".".join(brodcast))
print(ip)
print(first)
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