Networking Fundamentals & Troubleshooting Masterclass

Learn how routers and Cisco iOS enable data transmission from home networks to internet, with numbered packets, acknowledgments, and a comparison of transmission control protocol versus user data protocol.

Explore how the internet interconnects two or more networks, linking local areas, schools, and countries through routers, towers, and wires to enable sending and receiving data.

The lecture covers fundamental networking terms, including internet service provider, mac address, ip address, dns, gateway, dhcp, icmp, ipv4 and ipv6, and static versus dynamic addresses.

Learn how commands and parameters (barometer) drive Windows actions in the command prompt, from start and title manipulations to shutdown options, timers, canceling, and hibernate behavior.

Explore networking commands like ping, traceroute, ipconfig, and lookup to test connectivity, map routes via the default gateway, and view ip or mac addresses.

Learn to view Wi-Fi passwords on Windows and mobile, manage previously connected networks, and generate a Wi-Fi report using netsh commands.

Learn how to connect two machines over a local area network, locate an IP with ipconfig, log in to another machine, share folders, set read-only permissions, and transfer files offline.

Configure your router by accessing the command prompt and browser, set wifi password, manage devices, and apply block or permit rules. Back up and restore configurations for recovery after resets.

Explore router hacking concepts, including common default credentials and MAC address practices, identify security risks from weak passwords, and suggest steps to secure routers.

Diagnose network issues by testing connectivity to different sites, verify dns and ip configuration, inspect the default gateway and router, check cables, reboot devices, and review firewall rules.