I’ve read many posts and articles describing how to logically create subnets (Pluralsight: Subnetting a Class C Address Using the Fast Way, Network Enginering: How to divide network into subnets? How to Subnet a Network ), and I grasp the concept of calculating the subnet mask. However, what’s left out of these informative guides is the practical application (understandable, the logic is universal, but every network is physically different).
My question is what hardware configuration is necessary to separate a network into multiple subnets?
Do I need to buy a router for each subnet with each configured to provide a subset of the available address? For example, 4 subnets 4 routers:
Router 1 (192.168.0.0 - 192.168.0.63)
Router 2 (192.168.0.64 - 192.168.0.127)
Router 3 (192.168.0.128 - 192.168.0.191)
Router 4 (192.168.0.192 - 192.168.0.256)
For internet access and intranetwork communication, does each router need to be connected to an additional router which connects to the internet?
Modem --> Router1-->Router(2..n)
Or should a switch be used for this purpose? If using a switch, what is the correct connection:
Or am I completely off the mark in my assumptions? I’m thinking in terms of consumer networking equipment. Do I need some professional grade router designed for subnetting where each port is allocated to a different network? I tried changing the subnet mask in my Netgear Nighthawk router and all I accomplished was reducing the number of IP address available. I wasn't able to assign devices to IPs not in the router's subnet.
My intention is to segregate devices based on if they need internet access, local network resources, or both:
1: Internet & Local Network: Computers and network devices accessed remotely
2: Local Network Only: Fileserver, computer running backups and printer
3: Internet Only: AV equipment, home automation devices and guests’ mobile devices