Method and system for bidirectional transparent proxying

A system for bidirectional transparent proxying, comprising:

• a first proxy end and a second proxy end, the first proxy end including a first configuration module and a second configuration module, and the second proxy end including a third configuration module and a fourth configuration module;
• the first configuration module is configured for configuring iptables rules based on a protocol type of a requesting-end-requested packet, and receiving the requesting-end-requested packet that is guided based on the iptables rules, wherein the requesting-end-requested packet is a packet requested by a requesting end;
• the second configuration module is configured for sending the requesting-end-requested packet and the protocol type of the requesting-end-requested packet to the second proxy end;
• the third configuration module is configured for, based on the requesting-end-requested packet and the protocol type of the requesting-end-requested packet, sending the requesting-end-requested packet to an acknowledging end, wherein a requesting-end ip address and a requesting-end port in the requesting-end-requested packet are used as a source ip address and a source port;
• the fourth configuration module is configured for guiding and receiving an acknowledging-end-responded packet by configuring ospf service, iptables rules and routing rules, and sending the acknowledging-end-responded packet to the first proxy end, wherein the acknowledging-end-responded packet is a packet responded by the acknowledging end;
• the first configuration module is further configured for sending the received acknowledging-end-responded packet to the requesting end.