Networking · CCNA study
Network Engineering Lab
An evolving set of practical networking exercises informed by CCNA study and real homelab connectivity problems.
Project overview
The networking work combines theory and hands-on investigation: IPv4 addressing, subnetting, VLAN tagging, routing concepts, neighbor discovery, and how clients reach services on a local network.
This is active learning and lab practice—not a claim of CCNA certification or production network engineering employment.
Topics practiced
- IPv4 subnetting, prefix lengths, and host ranges.
- 802.1Q VLAN tagging, trunking, and native VLAN behavior.
- RSTP port roles and loop prevention concepts.
- EtherChannel negotiation with LACP and PAgP.
- OSPF metrics, administrative distance, LLDP, and basic wireless concepts.
Real troubleshooting example
An SSH connectivity investigation compared ping results, ARP observations, and traceroute paths. Those checks help distinguish basic reachability issues from wrong-route, firewall, or service-level problems.
How the lab is documented
Each exercise should record its goal, topology, commands, observed output, interpretation, and what changed. Diagram and configuration samples will be added as individual labs are completed.
Add curated screenshots or logs with identifiers and credentials removed, and document results from future experiments.