If you want to generate a DLSW circuit, you can configure the routers appropriately for the topology. Then to actually provide the circuit, setup a PC on each side of the DLSW connection. Do not implement IP on the PC's -just Netbios and put the PC's in the same workgroup. Share one of the drives on one of the PC's and then do a find from PC-A to PC-B and then map the share. This will create a DLSW circuit for the connection.