IP address routing

Comparison Diagram Showing The Same Static Route Configured Using An Exit Interface Versus A Next-Hop Ip Address
CCNA

Static Route Configuration: IPv4 and IPv6

Static routes are the simplest routing tool a network administrator has: manually tell the router exactly how to reach a specific network, with no protocol overhead and no automatic recalculation if something changes. That simplicity is both the appeal and the limitation, and knowing exactly when a static route is the right choice — versus...

Muhammad Khattak 8 min read
Diagram Showing A Packet'S Mac Address Changing At Each Router Hop While Its Ip Address Stays Constant
CCNA

The Router Switching Function: Encapsulation, De-Encapsulation, and MAC Address Changes

A router’s core job sounds simple: receive a packet on one interface, forward it out another. What actually happens in between — the router switching function — is where a genuinely important CCNA concept lives: IP addresses stay constant for the entire journey from source to destination, while MAC addresses get rewritten at every single...

Muhammad Khattak 8 min read
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