[strongSwan] client to site but as a gateway(nat)?

[Justin Pryzby]

>>>> how to, if possible at all, have a client that calls out to a
>>>> server(site) and that client would route(nat) other nodes on it's
>>>> local lan to the site(server)?

>> How to even phrase a query to find docs/howtos on such a setup?
>> Or, tips on setup/config much appreciated - I have a working client to

You can see how I did this last year:
https://lists.strongswan.org/pipermail/users/2016-March/009398.html
https://lists.strongswan.org/pipermail/users/2016-March/009396.html