Businesses employ high-speed internet connections to connect offices, store data, and use cloud computing to manage client relations, billing, and office efficiency. Numerous small firms lack a firewall that can protect them from the dangers posed by these actions. Instead, they rely on the limited security capabilities of a residential-grade router and the built-in firewall on their Windows PC, despite the fact that these systems offer inadequate protection against sophisticated attacks. You are hired as a network administrator by a small firm. The company's network must be protected by firewalls. 

 

Describe how you would modify the existing network rules that would enable users and the network to work together when users are unable to connect or access LAN devices or applications from the internet. Please provide examples of how this could be done with possible firewall suggestions and configurations.