Intervlan routing (Layer 3 switch) and internet access.
How to Configure Inter VLAN Routing on Layer 3 Switches? | by Laura Yu | Medium
cisco - How to configure a router as a dhcp server for vlans through a Layer 3 switch? - Network Engineering Stack Exchange
Configuring InterVLAN Routing Using an Internal Router (Layer 3 Card) on Catalyst 5500/5000 and 6500/6000 Switches That Run CatOS System Software - Cisco