Abstract: The present disclosure generally relates to the exchange of datagrams between application modules executed by machines connected to a telecommunications network. A method implementation of the technique presented herein comprises several steps performed or triggered by a first machine of the machines. The steps comprise executing one or more application modules, each of which being associated with an application module address and configured to exchange the datagrams using the associated application module address. The steps further comprise establishing a plurality of tunnels between the first machine and a plurality of second machines different from the first machine, each of the tunnels being associated with a tunnel endpoint address for one of the second machines. Still further, the steps comprise forwarding the datagrams between the application modules and tunnels depending on the application module address.