Network fundamentals, subnetting, and networking practice platforms.
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- 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.