Cisco 800 router (none wireless) guest network configuration

[Shumaid01]

Hi,

I'm new to Cisco,

I have a cisco router with four ports on it, it is configured to provide access to one internal network

I need to configure one of the ports to provide a separate guest network access to internet only and prevent this network from accessing the internal one

Your guidance is much appreciated

Thank you 

[Shumaid01]

After researching, I have my todo list to start configuring the router:

- Create a vlan

- Assgin one of the ports to the vlan

- Assgin an IP (10.10.20.0 /24) to that vlan

- Disable inter-vlan routing

- Configure DHCP on the vlan

If I do the list above, would the cleints connect to this guest network and get internet access? or I have to do additional configuration

Thank you