A method for enabling routing of traffic to/from a roaming host node roaming from a subnet of a home network to a visited network, wherein the roaming host node is assigned an Internet Protocol, IP, address in the home network, the method comprising: - configuring, in a router of the visited network to which the roaming host node is connected, a subnet by assigning an IP address range to the subnet, wherein the assigned IP address range is the same IP address range of the subnet of the home network; - creating or configuring a tunnel between a router of the home network and the router of the visited network; - creating or configuring, in the router of the home network, a static route to route traffic from a host node, destined to the roaming host node wherein the traffic is routed through the tunnel and delivered to the roaming host node through a first connected interface to the visited network, on the router of the visited network, and wherein the IP address of the roaming host node is maintained unchanged in the subnet of the visited network; and - configuring the router of the visited network by applying a routing policy, wherein the routing policy enables the roaming host node to generate traffic to reply to received traffic from said host node received from said first interface, by setting a medium access control, MAC, address of the first interface as a Layer 2 destination MAC address part of the traffic towards the host node of the home network, and when the reply traffic is received by the router of the visited network, the router of the visited network checks the destination IP address and forwards the traffic from the roaming host node through a network interconnecting the router of the visited network and the router of the home network. - configuring, in a router of the visited network to which the roaming host node is connected, a subnet by assigning an IP address range to the subnet, wherein the assigned IP address range is the same IP address range of the subnet of the home network; - creating or configuring a tunnel between a router of the home network and the router of the visited network; - creating or configuring, in the router of the home network, a static route to route traffic from a host node, destined to the roaming host node wherein the traffic is routed through the tunnel and delivered to the roaming host node through a first connected interface to the visited network, on the router of the visited network, and wherein the IP address of the roaming host node is maintained unchanged in the subnet of the visited network; and - configuring the router of the visited network by applying a routing policy, wherein the routing policy enables the roaming host node to generate traffic to reply to received traffic from said host node received from said first interface, by setting a medium access control, MAC, address of the first interface as a Layer 2 destination MAC address part of the traffic towards the host node of the home network, and when the reply traffic is received by the router of the visited network, the router of the visited network checks the destination IP address and forwards the traffic from the roaming host node through a network interconnecting the router of the visited network and the router of the home network.