Network Routing is the basis of how packets are forwarded across the Internet.
In this video crash course I go through the fundamentals of network routing from its first principles and build up all the way up. From the idea of MAC address, IP Address, Routing tables and end the video with a demo.
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
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