Routing determines how packets travel from source to destination across interconnected networks. Without routing, your data would never leave your local network.
In this section, I'll show you:
- How routers make forwarding decisions
- The difference between static and dynamic routing
- How routing tables work
- Techniques to prevent routing loops
- Inter-VLAN routing methods
If you don't understand routing, you'll struggle to troubleshoot connectivity issues or design networks that span multiple sites. Every packet that leaves your LAN depends on routing to reach its destination.