var deviceScripts = { manualRouter: { onPacketReceived: function(device, packet) { for (var i = 0; i < device.rules.length; i++) { if (device.rules[i].dstip == packet.network.dstip) { sendPacket(device.id, device.rules[i].portNum, packet); } } } }, hub: { onPacketReceived: function (device, packet) { //. } }, ping: { onPacketReceived: function(device, packet) { if(packet.hashOwnProperty("proto"){ if(packet.transport.proto == "ICMP"){ var new_packet = { network: { srcip: packet.network.dstip, dstip: packet.network.srcip }, transport: { proto: "ICMP" } }; sendPacket(device.id, 0, new_packet); } } } }, modem: { onPacketReceived: function(device, packet) { if(packet.network.dstip == device.id){//look up ip in NAT table var new_packet = { network: { srcip: packet.network.srcip, dstip: getPortRecipient(device.id, 0) } }; sendPacket(device.id, 0, new_packet); } else { //replace src ip with device IP and save in NAT table var new_packet = { network: { srcip: device.id, dstip: packet.network.dstip } }; sendPacket(device.id, 1, new_packet); } } } }