What configurations would typically be applied to a Layer 3 switch connecting to a router for Internet access?

What configurations would typically be applied to a Layer 3 switch connecting to a router for Internet access?

• A. No switchport, IP address configuration, and VLAN assignment
• B. No switchport, IP address configuration, and IP routing
• C. Switchport activation, VLAN tagging, and IP address assignment
• D. Routing protocols, DHCP settings, and access list configuration

Answer: (B)

When connecting a Layer 3 switch to a router for Internet access, the typical configurations involve setting the appropriate interface as a Layer 3 interface, which requires the use of "no switchport" to configure the interface for Layer 3 capabilities rather than Layer 2 switchport functionality. This means the interface can handle IP addresses directly, making it essential for routing IP packets. The configuration also involves assigning an IP address to the interface. This IP address serves as the gateway for devices within its VLAN or connected network, allowing them to communicate with external networks like the Internet. Additionally, enabling IP routing on the Layer 3 switch is necessary because it allows the switch to route traffic between different VLANs as well as towards the router for external Internet access. This is a crucial step in ensuring that devices across various segments of the network can access the Internet, as the Layer 3 switch would handle intra-network routing, while the router would manage outbound traffic to the Internet. Together, these configurations allow the Layer 3 switch to act as a gateway for local network traffic to reach external networks, demonstrating its increased functionality beyond just switching.

When connecting a Layer 3 switch to a router for Internet access, the typical configurations involve setting the appropriate interface as a Layer 3 interface, which requires the use of "no switchport" to configure the interface for Layer 3 capabilities rather than Layer 2 switchport functionality. This means the interface can handle IP addresses directly, making it essential for routing IP packets.

The configuration also involves assigning an IP address to the interface. This IP address serves as the gateway for devices within its VLAN or connected network, allowing them to communicate with external networks like the Internet.

Additionally, enabling IP routing on the Layer 3 switch is necessary because it allows the switch to route traffic between different VLANs as well as towards the router for external Internet access. This is a crucial step in ensuring that devices across various segments of the network can access the Internet, as the Layer 3 switch would handle intra-network routing, while the router would manage outbound traffic to the Internet.

Together, these configurations allow the Layer 3 switch to act as a gateway for local network traffic to reach external networks, demonstrating its increased functionality beyond just switching.