47 lines
1.0 KiB
Python
47 lines
1.0 KiB
Python
#!/usr/bin/env python3
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def get_ipv4_from_user():
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user_in = input("Enter IPv4 address: ")
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return user_in
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def ipv4_to_ipv6(ipv4):
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ipv4Hex = ''
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ipv6Hextet1 = '2002'
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ipv6Hextet2 = ''
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ipv6Hextet3 = ''
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# Split input to octets
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ipv4 = ipv4.split('.',4)
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# Convert IPv4 address to hex string
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for octet in ipv4:
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if len(hex(int(octet))[2:])>1:
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ipv4Hex += hex(int(octet))[2:]
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else:
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ipv4Hex += '0'
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ipv4Hex += hex(int(octet))[2:]
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# Split into hextets
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for i in range(4):
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ipv6Hextet2 += (ipv4Hex[i])
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for i in range(4,8):
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ipv6Hextet3 += (ipv4Hex[i])
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# Convert to dec and back to remove leading zeros
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ipv6Hextet2 = hex(int(ipv6Hextet2,16))[2:]
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ipv6Hextet3 = hex(int(ipv6Hextet3,16))[2:]
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# Form 6to4 address
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output_6to4 = f"{ipv6Hextet1}:{ipv6Hextet2}:{ipv6Hextet3}::/128"
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return output_6to4
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def main():
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ipv4 = get_ipv4_from_user()
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output = ipv4_to_ipv6(ipv4)
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print(output)
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main()
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