Resources

• Jeremy's IT Lab CCNA Course — A CCNA course covering everything needed for the exam.
• ExSim-Max for Cisco 200-301 CCNA — Full length and realistic practise exam software.
• Cisco CCNA (200-301) Exam Topics — The official exam blueprint (what you’re actually tested on).

• Nmap — network discovery & topology scanning.
• Wireshark — protocol analysis & packet inspection.
• iperf3 — throughput & performance testing.
• MTR — traceroute + ping for path diagnostics.
• BGP.tools — AS lookup, routing tables, global BGP visibility.
• IPinfo — IP metadata and ASN information.

• Cisco Packet Tracer — beginner-friendly network simulation.
• GNS3 — powerful open-source network emulator.
• EVE-NG — enterprise-grade multi-vendor lab environment.
• Containerlab — L2/L3 network topologies using containers.

• RFC Editor — official internet standards & protocol specs.
• Subnet Calculator — fast IP subnet planning.
• Cisco Docs / DevNet — vendor configuration & API references.
• Juniper Open Learning — free JNCIA material & labs.
• Arista EOS Central — next-gen DC networking documentation.

• Cisco Networking Academy — foundational networking curriculum.
• Wireshark Wiki — protocol breakdowns & dissector insights.
• Practical Networking — clean explanations of core concepts.
• NetworkLessons — vendor-neutral network theory & configs.