A method is provided for enabling communication between first and second network nodes (1, 7) by way of a network address translation device (3, 9), which network nodes are each capable of communicating with a server (11). The first network node (1) establishes communication with the server (11) requesting communication with the second network node (7). The first network node then establishes communication with the second network node by way of the network address translation device (3, 9), including sending a plurality of first dummy packets from the first network node directly to the second network node. The server (11) establishes communication with the second network node requesting communication between the second network node and the first network node. Thereafter, the second network node establishes communication with the first network node byway of the network address translation device, including sending a plurality of second dummy packets from the second network node directly to the first network node, transmission of the second dummy packets overlapping with transmission of the first dummy packets. Thereafter data is echanged solely between the first and second network nodes.