Network fundamentals, subnetting, and networking practice platforms.

Subcategories

• Network Fundamentals - 23 resources (17 free, 4 freemium, 2 paid)
• Network Labs & Simulation - 20 resources (12 free, 3 freemium, 5 paid)

All Resources (43)

Network Fundamentals

• Boson Subnet Calculator Free
  • Free online subnet calculator for computing network broadcast and host ranges.
• Cloudflare Learning Network Protocols Free
  • Free article defining network protocols and mapping them to OSI model layers.
• Cloudflare Learning OSI Model Free
  • Free illustrated guide explaining the 7 OSI model layers and how data flows through them.
• Computer Networking GitHub Free
  • Free curated GitHub repo of networking videos articles books and exercises.
• David Bombal YouTube Free
  • Free video tutorials on networking CCNA Wireshark Python and cybersecurity.
• Jeremy's IT Lab YouTube Free
  • Free CCNA video course with hands-on Packet Tracer labs and networking practice.
• Learning About Electronics - Networking Quizzes Free
  • Free networking quizzes covering TCP/IP, subnetting, and network fundamentals.
• NetSandbox Free
  • Browser-based network design tool with drag-and-drop topology builder, protocol validation, and STP/OSPF/BGP simulation.
• OmniSecu Basic Networking Free
  • Free structured lessons on network topologies devices cabling and Ethernet.
• OmniSecu TCP IP Tutorials Free
  • Free 200+ lesson TCP IP course covering IP addressing subnetting and protocols.
• Open Networking Lab Free
  • Free browser-based network simulator from the Open University for designing, configuring, and testing virtual networks.
• OSI Model Simulator Free
  • Interactive OSI layer simulator showing step-by-step data encapsulation through all seven layers with real protocols.
• PacketTrainer Free
  • Free interactive Cisco IOS command exercises with simulated terminal and instant validation.
• ProProfs Networking Quizs Free
  • Free networking quizzes covering various networking topics.
• SubnetIPv4.com Free
  • Free interactive subnetting practice generator with random IP CIDR problems.
• Subnetting Practice Free
  • Free subnetting questions and practice tests for CCNA exam preparation.
• Subnetting.net Free
  • Free subnetting practice questions and tutorials with multiple difficulty levels.
• Connected Dots Online Freemium
  • Interactive browser-based network device simulators for subnetting, VLANs, routing, OSPF, and DHCP with hands-on labs.
• NetworkAcademy.io Freemium
  • CCNA practice tests and quizzes covering OSI model, IP addressing, routing, and switching fundamentals.
• NetworkChuck Freemium
  • Engaging YouTube tutorials and courses on CCNA networking and IT careers.
• Practical Networking Freemium
  • Cisco-award-winning blog with articles on subnetting OSPF NAT ACLs and TLS.
• CBT Nuggets Networking Paid
  • Expert-led networking courses for CCNA Network+ CCNP and Wireshark.
• FlackBox CCNA Paid
  • Top-rated CCNA course with 35+ hours of video labs quizzes and flashcards.

Network Labs & Simulation

• Chris Greer Packet Pioneer Free
  • Free Wireshark tutorial videos on TCP analysis DNS and packet-level troubleshooting.
• Cisco DevNet Free
  • Free Cisco labs sandboxes and learning tracks for network automation and programmability.
• Cisco Packet Tracer Free
  • Free network simulation tool from Cisco for practicing routing, switching, and network configuration.
• CTF Academy - Network Forensics Free
  • Free network forensics challenges teaching protocol analysis and Wireshark packet inspection skills.
• GNS3 Free
  • Free open-source network simulator for building complex multi-vendor network topologies.
• Inventive HQ Firewall Rule Simulator Free
  • Interactive browser-based firewall rule simulator to build, test, and analyze firewall rulesets.
• Kurose/Ross Wireshark Labs Free
  • Free hands-on Wireshark labs covering HTTP, DNS, TCP, UDP, IP, NAT, DHCP, and more protocols.
• Malware Traffic Analysis Free
  • Free PCAP-based traffic analysis exercises for learning network forensics and packet inspection.
• Mininet Free
  • Free open-source tool to instantly create realistic virtual SDN networks.
• NetworkDirection Labs Free
  • Free pre-built network labs for Cisco CML and VIRL covering routing, switching, and security topics.
• SharkFest YouTube Free
  • Free conference talks and tutorials on packet analysis and network troubleshooting.
• Wireshark Sample Captures Free
  • Free library of PCAP files across hundreds of protocols for packet analysis practice.
• Cybrary Freemium
  • Free virtual network labs covering segmentation, routing, and infrastructure skills with guided exercises.
• EVE-NG Freemium
  • Clientless multivendor network emulation platform with community and professional editions.
• NetPilot Freemium
  • Browser-based multi-vendor network simulator with real Cisco, Juniper, Arista, and Nokia CLIs.
• Boson NetSim Paid
  • Paid Cisco network simulator with guided labs for CCNA and CCNP exam preparation.
• Boson Practice Labs Paid
  • Paid virtual IT labs providing browser access to real routers switches and servers.
• NDG Online Networking Paid
  • Paid browser-based networking labs aligned with Cisco and cybersecurity certifications.
• Packet Pioneer Training Paid
  • Paid Wireshark and packet analysis training courses and certification preparation.
• Wireshark Labs Paid
  • Paid hands-on Wireshark labs with exercises and exam questions for certification prep.