In accordance with an example embodiment of the present invention, there is provided a method, comprising receiving in an apparatus a first message from a second apparatus located in a different domain as the apparatus, the first message comprising a logical name of the second apparatus and a first global address, receiving a second message from a third apparatus, the second message comprising a second global address, and determining whether the first and second global addresses are the same address, or where the first and second global addresses are IPv6 addresses, whether they belong to the same network, and responsive to the first and second global addresses being the same address, or in the case of IPv6 belonging to the same network, causing transmission of information comprising at least one of a logical name and a local address of the second apparatus to the third apparatus.