VLAN(Virtual LAN)
A way to split one physical network into isolated logical networks for security and organization.
Enthusiasts use VLANs to keep untrusted IoT devices or guests away from their server and personal devices. They require a managed switch and a router that supports VLAN tagging.
Related articles
Subnet
A logical subdivision of an IP network, defined by a mask that separates the network and host portions of an address.
Firewall
Software or hardware that controls which network traffic is allowed in or out based on rules.
NAT(Network Address Translation)
The router technique that lets many private devices share one public IP address.