Patent ID: 8724630
Filing Date: 2014-05-13
Classification: H04L

Abstract:
1. A method for network intercommunication, comprising a step of a Locator/ID Separation Protocol (LISP) communication end sending a data packet to an Internet communication end, and the step of a Locator/ID Separation Protocol (LISP) communication end sending a data packet to an Internet communication end comprising: the LISP communication end sending a LISP single-layer data packet to a tunnel router (TR) of a LISP network, wherein a source address in the LISP single-layer data packet is an endpoint identity of the LISP communication end, and a destination address is an endpoint identity of the Internet communication end for intercommunicating with the LISP network; the TR receiving the LISP single-layer data packet, analyzing and encapsulating the single-layer data packet into a LISP double-layer data packet and sending to an interworking service node (ISN), wherein in the LISP double-layer data packet, an outer source address is a router locator of the LISP communication end, an outer destination address is a router locator of the Internet communication end for intercommunicating with the LISP network, an inner source address is the endpoint identity of the LISP communication end, and an inner destination address is the endpoint identity of the Internet communication end for intercommunicating with the LISP network; after receiving the LISP double-layer data packet, the ISN analyzing and encapsulating the LISP double-layer data packet into an IP data packet, wherein in the IP data packet, a source address is an IP address of the LISP communication end for intercommunicating with an Internet, and a destination address is an IP address of the Internet communication end; and the ISN sending the IP data packet to the Internet communication end through routing; thereby realizing intercommunication between the LISP network and the Internet; the IP address of the LISP communication end for intercommunicating with the Internet is the endpoint identity of the LISP communication end, an exclusive fixed public network IP address or a shared public network IP address specially used for intercommunication.