Patent ID: 11888809
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 4:
5. The gateway according to claim 4, wherein the processor runs the computer-executable instructions in the memory to further:
receive a first packet sent by the first device through the communication tunnel, wherein a destination IP address of the first packet comprises the private network address of the second device, a destination MAC address of the first packet comprises the first MAC address of the gateway, a source IP address of the first packet comprises a private network address of the first device, and a source MAC address of the first packet comprises a MAC address of the first device;
obtain the MAC address of the second device from the first correspondence based on the private network address of the second device carried in the first packet, modify the destination MAC address of the first packet to the MAC address of the second device, and modify the source MAC address of the first packet to a second MAC address of the gateway; and
send a modified first packet to the second device.