A method is described herein for transmitting data from a first point (203) to a second point (205) on a network (201) via a proxy server (207). In accordance with the method, a first data packet is received from the first point at the proxy server without sending an acknowledgement packet to the first point. The first data packet is forwarded from the proxy server to the second point, and a second data packet is received from the second point at the proxy server. The second data packet is then forwarded to the first point along with an acknowledgement packet for receipt of the first data packet from the first point at the proxy server.