Checking refusal of a network connection
Markus Elfring
Markus.Elfring at web.de
Sat Jun 1 14:44:29 EDT 2019
> Which specific information in that man page contradicts what I wrote?
We can agree that the mentioned IP addresses are distinct.
But the corresponding functionality should be equivalent.
> If you think of
>
> | IPv4 connections can be handled with the v6 API by using the
> | v4-mapped-on-v6 address type; thus a program needs to support only
> | this API type to support both protocols.
>
> please note that 127.0.0.1 mapped to IPv6 is ::7f00:1, not ::1.
I find another information like “This is handled transparently by
the address handling functions in the C library.” also interesting.
> So you still need to bind to two addresses.
I am unsure about this conclusion.
Under which circumstances will the Python programming interfaces
support the direct usage of the identification “::1”?
Regards,
Markus
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