Intelligent interconnection method and system for heterogeneous network

The invention provides an intelligent interconnection method and system for a heterogeneous network, and the method comprises the steps: configuring an interconnection gateway to achieve the subnetwork interconnection based on the VPNS, VPNC, GRE and ROUTE routes; configuring an interconnection gateway NAT rule to achieve the bypass subnetwork interconnection; configuring an intelligent terminal interconnection, and employing VPNC to achieve the end-to-end interconnection; configuring an intelligent terminal ROUTE rule to achieve the end-to-subnetwork interconnection and the end-to-bypass network interconnection. The intelligent interconnection method based on SD-WAN achieves the network interconnection, information interconnection and data sharing of the intelligent equipment in a heterogeneous network environment, and can meet the demands of multi-mode interconnection application scenes, such as end-to-end interconnection, subnetwork interconnection, bypass subnetwork interconnection, end-to-subnetwork inte