19 lines
575 B
Python
19 lines
575 B
Python
# 255.255.255.0 24
|
|
# 255.255.0.0 16
|
|
# 255.0.0.0 8
|
|
|
|
def subnet_mask_to_cidr(subnet_mask):
|
|
# Split the subnet mask into its octets
|
|
octets = subnet_mask.split('.')
|
|
|
|
# Convert each octet to binary and count the number of 1s
|
|
binary_representation = ''.join(format(int(octet), '08b') for octet in octets)
|
|
print(binary_representation)
|
|
cidr = binary_representation.count('1')
|
|
|
|
return cidr
|
|
|
|
# Example usage
|
|
subnet_mask = '255.255.255.240'
|
|
cidr = subnet_mask_to_cidr(subnet_mask)
|
|
print(f"The CIDR notation for subnet mask {subnet_mask} is /{cidr}")
|