Remote tunnel access technology gateway and server
A technology of tunneling and technology, applied in the Internet field, can solve problems such as low data transmission efficiency, insufficient performance, and low capacity
Active Publication Date: 2019-11-26
SHENZHEN COMTOP INFORMATION TECH
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Problems solved by technology
[0005] Based on this, it is necessary to provide a remote tunnel access technology gateway for the SSL VPN gateway's low ability to process network data, insufficient performance in high-speed and complex environments, and low data transmission efficiency.
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[0024] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.
[0025] In one embodiment, such as figure 1 As shown, a remote tunnel access technology gateway is provided, including: TCP / IP protocol stack module 200, VPN communication protocol module 400, network address translation module 600 and PF_RING module 800;
[0026] The remote tunnel access technology gateway, namely the SSL VPN gateway, is one of the VPN gateways. The function of VPN is: to establish a private network on the public network for encrypted communication. It is widely used in enterprise network. The VPN gateway realizes remote access by encrypting the data pa...
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The invention relates to a remote tunnel access technology gateway and a server. A TCP / IP protocol stack module in the gateway receives a network data packet from an external network interface, decapsulates the network data packet to obtain an IP data packet, and sends the IP data packet to the VPN communication protocol module; sSL / TLS comprehensive decryption is carried out on the IP data packetthrough the VPN communication protocol module; the IP data packet is sent to a network address translation module; after address conversion is conducted on the IP data packet through the network address conversion module, the IP data packet is input into the PF _ RING module, and after an MAC header is added to the IP data packet obtained after address conversion through the PF _ RING module, theIP data packet obtained after the MAC header is added is output from the second network interface of the intranet interface. According to the application, the high-speed network packet capture technology PF _ RING is used to replace a virtual network card, so that the data volume limitation of reading and writing of the virtual network card is thoroughly removed, the operation frequency of packaging and de-packaging the network data packet in the system protocol stack is reduced, and the data transmission efficiency of the remote tunnel access technology gateway can be effectively improved.
Description
technical field [0001] The present application relates to the technical field of the Internet, in particular to a remote tunnel access technology gateway and server. Background technique [0002] With the development of Internet technology, a VPN (Virtual Private Network, virtual private network) technology appears, which uses tunnel technology and encryption technology to establish a virtual private link in a public network. Compared with dedicated links, VPNs are less costly and more flexible, and are often used to interconnect intranets of cross-regional enterprises. The tunnel-type SSL (Secure Sockets Layer, Secure Sockets Layer) VPN is a network layer VPN implemented based on virtual network card technology and the Secure Sockets Layer protocol, and is often implemented by the open source TUN / TAP. TUN / TAP exchanges data between user space and kernel space in units of an Ethernet frame or an IP packet each time. [0003] When forwarding data transmission, the SSL VPN g...
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IPC IPC(8): H04L29/06H04L29/12H04L12/46H04L12/24
CPCH04L12/4633H04L12/4641H04L41/22H04L61/103H04L63/0272H04L63/10H04L69/162
Inventor 赖宇阳陈海倩张丽娟孙宏棣田占军杨漾江瑾曹夏莎陈柔伊
Owner SHENZHEN COMTOP INFORMATION TECH