Dive into this comprehensive crash course on network routing that builds from first principles to practical applications in just over an hour. Learn the fundamentals of how packets travel across the Internet, starting with data link concepts and MAC addresses, then progressing through IP addressing, subnet masks, ARP, and gateways. Understand both same-subnet and inter-network communication examples, explore routing tables and their configurations, and discover what mechanisms update these tables. The course concludes with practical demonstrations of listing routes and connecting to a Postgres database on another network. Perfect for aspiring network engineers or anyone wanting to understand how internet communication actually works.
Network Routing Fundamentals - From MAC Addresses to Routing Tables
Overview
Syllabus
0:00 Intro
1:30 Data Link
6:20 MAC address and Switches
8:30 Where Data Link Break
10:00 IP Address
14:00 Subnet Mask
16:00 ARP
19:30 Gateway
23:00 Same Subnet Example
30:00 Inter-Network Example
42:00 Where Inter-Network Breaks
44:40 Routing Table
52:00 Several Configurations
54:00 What updates the routing table?
58:00 Demo List Routes
1:01:00 Demo Connect to Postgres DB on another network
Taught by
Hussein Nasser
