CCNA Static Routing: Troubleshooting Broken Static Routes

Bundle lab · $29.99

Hands-on CCNA static routing troubleshooting in a realistic three-router core/edge topology with two user LANs. Static routing on the network was recently changed and users at SITE-A (10.10.10.10) and SITE-B (10.30.30.10) can no longer reach each other; you will investigate the routers' route tables and next-hop reachability to diagnose and restore full bidirectional connectivity.

Learning objectives

• Identify and correct a static route with a wrong next-hop IP address.
• Identify and repair a static route with an incorrect subnet mask that prevents route lookup.
• Detect and fix a missing default route at the edge.
• Diagnose and restore a missing return-path static route on the core that causes one-way ping failure.
• Validate repairs using ping (with source), traceroute, and show ip route.

Troubleshooting focus

• Verify every link's interface status and IP addressing (`show ip interface brief`) and correct any interface that is down or misaddressed.
• Confirm each device's running configuration matches the lab objective, and bring any interface, route, or service that is not in its expected state back to health.
• Trace end-to-end reachability with ping/traceroute and isolate the first hop where forwarding fails.