Mautic integration with CRM behind VPN

I’m looking to integrate mautic with suitecrm. However because our suitecrm install will have some sensitive information, it’ll be installed behind a vpn. Can I integrate mautic somehow through the VPN? If so, can you give me some general advice as to how?

I’m assuming that I need mautic outside the vpn since my website needs to communicate with it. Do I just set up the integration and have suitecrm handle both push and pull of data with mautic, from inside the vpn? Will that work?

the crm and mautic I assume will be on different servers as well (mautic I think will be installed on our website server, unless I get different instructions here).