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I saw 2 configurations that give the same result. I just want your inputs on which one is the best practice.<br />
<br />
Scenario 1:<br />
- A Cisco 2921 router (Fa0/1) connects to a 3750 switch (Fa0/2).<br />
- Fa0/1 is configured with 10.10.10.1/24<br />
- Fa0/2 is configured as an access port on vlan 1<br />
- On the switch, vlan 1 is configured with ip address 10.10.10.2/24<br />
- On the switch, default gateway pointed to 10.10.10.1 <br />
<br />
Scenario 2:<br />
- A Cisco 2921 router (Fa0/1) connects to a 3750 switch (Fa0/2).<br />
- internal subnet is 10.10.10.0/24<br />
- Fa0/1 is configured with 10.10.20.1/30<br />
- Fa0/2 is configured with 10.10.20.2/30<br />
- On the switch, default gateway pointed to 10.10.10.1<br />
- on the router, next hop for 10.10.10.0/24 is 10.10.20.2<br />
<br />
Thanks
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I saw 2 configurations that give the same result. I just want your inputs on which one is the best practice.

Scenario 1:
- A Cisco 2921 router (Fa0/1) connects to a 3750 switch (Fa0/2).
- Fa0/1 is configured with 10.10.10.1/24
- Fa0/2 is configured as an access port on vlan 1
- On the switch, vlan 1 is configured with ip address 10.10.10.2/24
- On the switch, default gateway pointed to 10.10.10.1 

Scenario 2:
- A Cisco 2921 router (Fa0/1) connects to a 3750 switch (Fa0/2).
- internal subnet is 10.10.10.0/24
- Fa0/1 is configured with 10.10.20.1/30
- Fa0/2 is configured with 10.10.20.2/30
- On the switch, default gateway pointed to 10.10.10.1
- on the router, next hop for 10.10.10.0/24 is 10.10.20.2

Thanks

vlan and layer 3

Network design and methodology, also known as network architecture, is the design of a communication network. It is a framework for the specification of a network's physical components and their functional organization and configuration, its operational principles and procedures, as well as data formats used in its operation. In telecommunication, the specification of a network architecture may also include a detailed description of products and services delivered via a communications network, as well as detailed rate and billing structures under which services are compensated.

Network Architecture

Networking hardware includes the physical devices facilitating the use of a computer network. Typically, networking hardware includes gateways, routers, network bridges, modems, wireless access points, networking cables, line drivers, switches, hubs, and repeaters. But it also includes hybrid network devices such as multilayer switches, protocol converters, bridge routers, proxy servers, firewalls, network address translators, multiplexers, network interface controllers, wireless network interface controllers, ISDN terminal adapters and other related hardware.

Networking Hardware-Other

Networking is the process of connecting computing devices, peripherals and terminals together through a system that uses wiring, cabling or radio waves that enable their users to communicate, share information and interact over distances. Often associated are issues regarding operating systems, hardware and equipment, cloud and virtual networking, protocols, architecture, storage and management.