[Jool-list] Trying to route local traffic via SIIT instance

[Tore Anderson]

* Nico Schottelius

> You might be right. The use case I see is:
> 
> - computer/system x has legacy apps installed
> - computer/system x just installs jool and maps v4 addresses into
>   port range
> - legacy apps now can run on IPv6 only hosts
> 
> So very similar operation to https://github.com/toreanderson/clatd.
> Which, for no surprise, currently relies on tayga.

clatd predates Jool, or at least the necessary SIIT bits within Jool.
If I was to re-implement clatd today, I would do it using Jool as the
translation engine instead of TAYGA. As Alberto has pointed out
already, you can do this with Jool no problem.

All you need to do is to enclose Jool in a private network namespace.
Then you point the IPv4 default route to the veth device connecting to
the Jool network namespace (in exactly the same manner that clatd
points the IPv4 default route to the tun device connecting to the TAYGA
process).

https://jool.mx/en/node-based-translation.html
https://github.com/NICMx/Jool/issues/177#issuecomment-144648229

Tore