Figure 1.l: Inter-VLAN routing. n Figure 1.1, Router R1 and Switch S1 need to be configured to support router-on-a stick inter VLAN-routing. Write the appropriate configuration commands for interface F0/0 on router R. Figure 1.l: Inter-VLAN routing. n Figure 1.1, Router R1 and Switch S1 need to be configured to support router-on-a stick inter VLAN-routing. Write the appropriate configuration commands for interface F0/0 on router R