NetCLI: CCNA Network Simulator

NetCLI is your portable Cisco networking lab. Build custom network topologies, connect routers and switches, and configure devices in a realistic IOS terminal. Practice subnetting, VLSM, IPv6, quizzes, and guided troubleshooting in one interactive app.

Learn by doing with hands-on labs, a searchable Cisco command library, and real-time network behavior. NetCLI is built for CCNA students, Network+ learners, aspiring network engineers, and IT professionals who want practical CLI experience without physical hardware.

Key features:

Custom Labs: Drag and drop routers and switches onto a canvas, connect them with cables, and configure them in real time. NetCLI also detects straight-through and crossover cables automatically.

Full Terminal Simulator: Practice in a realistic Cisco IOS command line with syntax highlighting, do command support, and output filtering like | include.

Guided Troubleshooting Labs: Solve VLAN mismatches, DHCP failures, ACL misconfigurations, and routing loops using a structured troubleshooting workflow.

Cisco Command Library: Search 200+ core commands and jump directly into related lab scenarios.

Interactive training:

Subnetting Practice: Train IPv4 subnetting with four difficulty levels, from Easy to Nightmare.

VLSM Trainer: Learn Variable Length Subnet Masking with guided step-by-step exercises.

IPv6 Trainer: Practice IPv6 addressing and subnetting with interactive exercises.

Quizzes: Test your knowledge across networking fundamentals, cabling, subnetting, and Cisco IOS.

Why NetCLI:

Learn by doing: See how your network responds as you configure it.

Build confidence: Practice real IOS commands in a safe environment.

No hardware required: Train networking skills without expensive physical gear.

Download NetCLI and start building real networking skills.