Divide 500 machines into 5 segments, with 100 machines in each segment, the Intranet addresses of the respective CIDR blocks are 192.168.1.X ---- 192.168.5.XROS. They are set to the WAN port address of the 192.168.0.1 layer-3 switch as 192.168.0.2 ROS configuration ?? ROS Intranet address 1? ? 192.168.0.1/24? ??? 192.168.0.0? ??? 192.168.0.255? ? LAN ?? ROS needs to include the IP addresses of all nodes for address hiding, so a src-address = 192.168.0.0/16 action = masquerade ?? ?? To ROS, route the route back to the CEN ip route add dst-address = 192.168.1.0/24 gateway = 192.168.0.2ip route add dst-address = 192.168.2.0/24 gateway = 192.168.0.2ip route add dst-address = 192.168.3.0 /24 gateway = 192.168.0.2ip route add dst-address = 192.168.4.0/24 gateway = 192.168.0.2ip route add dst-address = 192.168.5.0/24 gateway = 192.168.0.2 www.2cto.com layer-3 Switch configuration commands for three-tier switch manufacturers different, the following describes how to configure the WAN port address 192.168.0.2 static gateway 0.0.0.0 for a layer-3 switch. 0.0.0.0 192.168.0.1 and then create five new VLANs: VLAN100 ?? VLAN101 VLAN102 VLAN103 VLAN104. The IP addresses of VLAN 192.168.1.1, 192.168.2.1, 192.168.3.1, 192.168.4.1, and 192.168.5.1 are allocated as needed.