The disclosed system and method provide a dynamic and scalable gaming system in which a plurality of gaming machines are connected to a network switch. The gaming switch has two sets of data ports configured into two virtual local area networks (VLANs). The gaming machines are connected through their network interfaces to a first set of data ports of the network switch to form a first VLAN. The gaming machines are connected through their serial interfaces and serial-to-network adapters to a second set of data ports of the network switch to form a second VLAN. The gaming machines are configured to communicate with devices external to the gaming network through their network interfaces. The gaming machines are configured to communicate with each other through their serial interfaces. External and internal communications within the gaming network are segregated both at the device and network levels.