The configuration roadmap is as follows:
Set the default gateway addresses of PC1, PC2, and PC3 to 10.1.1.1, 10.1.2.1, and 10.1.3.1 respectively.
The following example displays the configuration of SwitchA. You can also use this method to view the configurations of SwitchB and SwitchC.
Choose to view routing information, as shown in Figure 6.