Source IP address transparency systems and methods

A method for source IP address transparency in a communication network comprising a proxy server, comprising;

• the proxy server receiving a traffic flow from an end-user device and determining a source IP address of the end-user device used by the detected traffic flow;
• the proxy server creating a virtual interface corresponding to the end-user device from which the traffic flow was received and using the virtual interface for that end-user device to exchange data between the end-user device and a designated web server, wherein the virtual interface comprises a logical representation of a network interface, wherein the proxy server creating the virtual interface corresponding to the end-user device comprises the proxy server searching a virtual interface memory using the determined source IP address to determine whether a virtual interface exists for the end-user device, and if a virtual interface for the end-user device does not exist, the proxy server creating the virtual interface for the end-user device and using the created virtual interface to exchange data between the end-user device and the designated web server;
• the proxy server assigning a source IP address to the created virtual interface that is the same as or in the same subnet as the source IP address for the end-user device;
• the created virtual interface sending the traffic flow to the designated web server using the assigned source IP address.