To calculate the IPv6 version of an IPv4 address:
Set the first 80 bits of the IPv6 address to zero.
Set the next 16 bits to 1.
Add the 32 bits of the IPv4 address converted to hexadecimal format.
For example, 169.291.13.133 maps to an IPv6 address of ::ffff:a9db:0d85.
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