Cisco Packet Tracer Labs along with Explanations
A hardware-based, reproducible little internet for learning how networking actually works
Collection of Kathará network scenarios and tutorials.
A comprehensive collection of Cisco Packet Tracer labs for CCNA. Covers Routing (OSPF, EIGRP), Switching (VLANs), Security (ACLs), and WAN protocols.
Implement your own TCP IP Stack
Cute network emulation web-app for self-education and classes (based on mininet).
Making virtual networking labs suck less
Sample virtual lab topologies for the netlab tool