4 results about "Private IP" patented technology

Embodiments of the present application provide a method, device, equipment and medium for providing services for terminals in a local area network, different port numbers are allocated to different home broadband account numbers by a cloud gateway device, a request message for requesting a certain service in the cloud gateway device is received from a terminal in a local area network corresponding to a home broadband account number, a destination IP address in the request message is an IP address of the cloud gateway device, and a destination port number is a port number corresponding to the home broadband account number corresponding to the terminal, thus the cloud gateway device can distinguish the request messages corresponding to different home broadband account numbers through the port number corresponding to the home broadband account number, and respond to the request messages to provide services for the terminals in the local area network corresponding to different home account numbers, so that the private IP of the terminals in the local area network corresponding to different home account numbers is the same, the corresponding terminal in the local area network cannot be responded to, and services cannot be provided.

This invention provides a traffic gateway method, system, device, and medium based on direct intranet forwarding. The method includes: a client obtaining first proxy information and second proxy information, and sending traffic to be forwarded to the traffic gateway via a public network transmission channel according to the information; the traffic gateway receiving traffic carrying a target public IP address through the public network transmission channel corresponding to the first proxy information; replacing the target public IP address in the traffic with the private IP address of the corresponding business server in the intranet environment according to pre-configured network address translation rules; sending the replaced traffic to the business server via the intranet transmission channel corresponding to the second proxy information; and the business server receiving the traffic and forwarding it to the target website. This invention significantly reduces user traffic costs and greatly reduces enterprise operating costs by converting public network traffic into free intranet traffic.

This invention relates to a data packet transmission method, apparatus, device, and storage medium. The data packet transmission method includes: acquiring a first data packet to be transmitted to a first network device; wherein the first network device is located in an internal network environment; performing VXLAN encapsulation and first IP address translation on the first data packet through a leased line gateway module; wherein the leased line gateway module is a virtual software module located in a cloud environment, and the first IP address translation refers to converting the destination IP address of the first data packet from a public IP address to the private IP address of the first network device; and transmitting the first data packet to the first network device through a leased line gateway device; wherein the leased line gateway device is a physical device located at the edge of the internal network environment. The method provided in this application achieves flexible routing configuration through a virtual software module, avoids IP conflicts, and reduces dependence on physical devices.

The application discloses a communication penetration method and system based on a session initiation protocol, and the method comprises the following steps: forcibly intercepting a data packet sent by a SIP terminal to a SIP server, converting a source IP of the data packet into a public network IP, converting a source port of the data packet into a target port, replacing a private IP and a port carried in a header connection field in SIP signaling of the data packet with the public network IP and the target port, and replacing a private media IP and a port in SDP information with a public network IP and a target media port when the SIP signaling carries the SDP information. Therefore, it can be seen that a boundary device uniformly intercepts and processes SIP data packets, fixes a port conversion relationship during registration, synchronously modifies a private address and a port in a signaling header into boundary device public network information, realizes consistency of network layer and application layer address conversion, and avoids SIP signaling address mismatch in a NAT environment.