Unmanaged vs Smart vs Managed Switch: Which One You Need
One question decides it: do you need VLANs. Everything else follows. What each tier adds, the price steps, and why…
Switching Home / Category: Routing & Switching
Category: Routing & Switching
Switching 
DHCP Static IP vs DHCP Reservation: Which One You Actually Want
Both give a device a fixed address. Only one is written down where the router can see it. When each…
Routing & Switching Default Gateway Is Not Available: The Fix That Usually Works
The message points at your own network adapter, not the router. Five fixes in order starting with one checkbox, plus…
IPv4 Wildcard Mask Calculator: Convert Masks, Prefixes and ACLs
Convert between a wildcard mask, a subnet mask and a CIDR prefix in either direction. Free, runs in your browser,…
Routing & Switching CCNA Home Lab in 2026: Physical, Virtual or Simulated
You can pass the CCNA on free software. Here is what the exam actually tests, the four ways to build…