To enable an access from a web client to a web server via a tunnel connection between an external proxy server and an internal proxy server.

An information communication method includes a process that a web client 111 connects to an external proxy server 105 and transmits an HTTP request, after the tunnel connection is established between the external proxy server 105 and an internal proxy server 205; a process that the external proxy server 105 transmits the received HTTP request to the internal proxy server 205 via the tunnel communication; a process that the internal proxy server 205 transmits the received HTTP request to a web server 211; a process that the web server 211 returns an HTTP response to the internal proxy server 205; a process that the internal proxy server 205 returns the HTTP response to the external proxy server 105; and a process that the external proxy server 105 returns the HTTP response to the web client 111.