57 Labs
Interactive Networking Labs
Every lab runs in your browser — no software to install, no VMs, no signup, and no paywall. Learn by doing, not watching.
Fundamentals
📶
The OSI 7-Layer Model
B level fundamentals lab for hands-on CompTIA practice.
FREE
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Network Topologies
B level fundamentals lab for hands-on CompTIA practice.
FREE
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Access Control (CSMA/CD)
B level fundamentals lab for hands-on CompTIA practice.
FREE
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Cables & Hardware
B level fundamentals lab for hands-on CompTIA practice.
FREE
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Address Resolution (ARP)
B level fundamentals lab for hands-on CompTIA practice.
FREE
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Network Services (DHCP/DNS)
B level fundamentals lab for hands-on CompTIA practice.
FREE
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DNS Resolution Visualiser
I level fundamentals lab for hands-on CompTIA practice.
FREE
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Packets vs. Frames
B level fundamentals lab for hands-on CompTIA practice.
FREE
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Protocol Data Units
B level fundamentals lab for hands-on CompTIA practice.
FREE
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How Ping Works (ICMP)
B level fundamentals lab for hands-on CompTIA practice.
FREE
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TCP Connection Lifecycle
I level fundamentals lab for hands-on CompTIA practice.
FREE
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Wireless-to-Wired Path
I level fundamentals lab for hands-on CompTIA practice.
FREE
Subnetting
🧮
IP Subnet Calculator
B level subnetting lab for hands-on CompTIA practice.
FREE
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VLSM Planner
I level subnetting lab for hands-on CompTIA practice.
FREE
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IPv6 Address Basics
I level subnetting lab for hands-on CompTIA practice.
FREE
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IPv6 Autoconfiguration: NDP, SLAAC & DHCPv6
I level subnetting lab for hands-on CompTIA practice.
FREE
🧮
Subnetting Quick Sheet
B level subnetting lab for hands-on CompTIA practice.
FREE
Switching
🔀
What is a Switch?
B level switching lab for hands-on CompTIA practice.
FREE
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MAC Learning & Forwarding
B level switching lab for hands-on CompTIA practice.
FREE
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VLAN Configuration
I level switching lab for hands-on CompTIA practice.
FREE
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Spanning Tree Protocol
I level switching lab for hands-on CompTIA practice.
FREE
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Link Aggregation
I level switching lab for hands-on CompTIA practice.
FREE
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802.1X Network Access Control
A level switching lab for hands-on CompTIA practice.
FREE
Routing
🧭
What is a Router?
B level routing lab for hands-on CompTIA practice.
FREE
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Gateway & Backup Routes
B level routing lab for hands-on CompTIA practice.
FREE
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Longest Prefix Match
I level routing lab for hands-on CompTIA practice.
FREE
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NAT / PAT Simulator
I level routing lab for hands-on CompTIA practice.
FREE
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Routing Protocols Matrix
I level routing lab for hands-on CompTIA practice.
FREE
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BGP Route Selection & Peering
A level routing lab for hands-on CompTIA practice.
FREE
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OSPF Visualiser
A level routing lab for hands-on CompTIA practice.
FREE
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QoS Traffic Management
A level routing lab for hands-on CompTIA practice.
FREE
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IPsec / WireGuard VPN
A level routing lab for hands-on CompTIA practice.
FREE
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VPN Policy & MTU Troubleshooting
A level routing lab for hands-on CompTIA practice.
FREE
Wireless
📡
What is Wireless?
B level wireless lab for hands-on CompTIA practice.
FREE
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Wi-Fi Spectrum Analyser
I level wireless lab for hands-on CompTIA practice.
FREE
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Cell Overlap & Roaming
I level wireless lab for hands-on CompTIA practice.
FREE
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Beamforming
I level wireless lab for hands-on CompTIA practice.
FREE
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Wi-Fi Security (WPA)
I level wireless lab for hands-on CompTIA practice.
FREE
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802.11 Standards
B level wireless lab for hands-on CompTIA practice.
FREE
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Enterprise Wi-Fi Design & Roaming
A level wireless lab for hands-on CompTIA practice.
FREE
Security
🛡️
Layer 2 Attack Mitigation
A level security lab for hands-on CompTIA practice.
FREE
🛡️
ACL Rules Simulator
I level security lab for hands-on CompTIA practice.
FREE
🛡️
TLS Handshake Visualiser
I level security lab for hands-on CompTIA practice.
FREE
🛡️
Firewall Zone Policy
A level security lab for hands-on CompTIA practice.
FREE
🛡️
PKI & Certificate Chain
A level security lab for hands-on CompTIA practice.
FREE
🛡️
Network Forensics
A level security lab for hands-on CompTIA practice.
FREE
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Phishing Simulator
A level security lab for hands-on CompTIA practice.
FREE
🛡️
ARP Poisoning / MITM
A level security lab for hands-on CompTIA practice.
FREE
🛡️
AAA & Identity
A level security lab for hands-on CompTIA practice.
FREE
🛡️
Stateful Firewall & NAT Troubleshooting
A level security lab for hands-on CompTIA practice.
FREE
🛡️
Incident Response Evidence Handling
A level security lab for hands-on CompTIA practice.
FREE
🛡️
Zero Trust Access Decisions
A level security lab for hands-on CompTIA practice.
FREE