"vpn内网通" doesn't appear to be a widely recognized or standard term in the context of VPN (Virtual Private Network) technology. It might be a typo, a misnomer, or a term specific to a particular framework, protocol, or company. If you are referring to a specific VPN service or framework, please provide more context or clarify your question so I can assist you better. If you meant "VPN" or "InnerNet," I can explain what those are!