[Jool-list] DNAT "port mapping" through jool?

[Alberto Leiva]

Try

sudo jool bib add <Address of IPv6 server>#<Port of IPv6 server> <IPv4
address of Jool>#<Port of Jool mask>
sudo jool bib add cafe::1#80 203.0.113.1:80

https://jool.mx/en/bib.html
https://jool.mx/en/usr-flags-bib.html

On Mon, Feb 15, 2021 at 5:16 PM Art Cancro via Jool-list <jool-list at nic.mx>
wrote:

> Hello again jool-list friends...
>
> A few months ago I was able to use jool to map an IPv6 /96 block to an
> IPv4 network in Stateful NAT64 mode.  This is working well.  On the IPv4
> network, all incoming traffic from the IPv6 world appears to come from the
> IPv4 address of the host running jool.
>
> Now I want to expose a couple of services in the other direction,
> preferably using the same IPv4 address.  For example, if 2001:db8::/96 is
> mapped to the IPv4 space, and the host running jool has IPv4 address
> 203.0.113.1, I would like IPv4 clients to be able to connect to (for
> example) 201.0.113.1:80, and be connected to a server at some arbitrary
> IPv6 address -- but I would like the remote IPv6 server to see the correct
> NAT64 address (say, 2001:db8::203.0.113.16) as the source, rather than the
> address of the host running jool.
>
> Does the jool module have the ability to do this?  I am trying various
> iptables commands with "-t nat" and "-t mangle" but getting errors.   Can
> someone point me to the correct part of the documentation, or at least
> confirm that this is something that can be done?
>
> Thanks,
>
>    -- Art
>
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