
Solve a connectivity issue between router 2 and router 3 by testing using the loopback source, checking interface protocol enablement, and aligning neighbor configurations to restore adjacency.
Troubleshooting a routing lab to establish router adjacency by verifying interface protocols, correcting the network command, enabling frame-relay broadcast, and confirming multicast hello packets and route propagation.
Resolve a router connectivity issue by correcting IP address and subnet mismatches, enabling routing protocols on the correct interfaces, and verifying adjacency between routers and loopback using show ip protocols.
Fix the connectivity issue by correcting the OSPF area mismatch to area zero on the interfaces, enabling adjacency and bringing router 3 back up, with routes now learned.
Troubleshoot non-broadcast adjacency by enabling multicast hello with a broadcast network type, or use unicast hello when allowed. Then fix mismatched hello keys across routers to establish the adjacency.
Troubleshoot a loopback connectivity issue between router two and router three by correcting md5 authentication and the keychain name to establish neighborship and restore loopback reachability through ping.
Resolve the loopback connectivity issue between router three and router four by fixing an mtu mismatch; set ip mtu to 1500 on router three to restore OSPF adjacency.
Troubleshoot and fix OSPF adjacency and authentication mismatches, adjust frame-relay maps and network type to point-to-multipoint, manage redistribution, and verify loopback connectivity.
*** Part of the full Course: Cisco Troubleshooting Labs For CCNA, CCNP, and CCIE Students (The best seller course in the CCIE Enterprise category Category ) ***
Troubleshooting is an essential and important skill for network engineers. As a network engineer, you have to know not just how to configure network devices, but also how to troubleshoot them. And for troubleshooting to be efficient, it has to be systematic and logical and not by random trial and error attempts.
In this course, I will demonstrate troubleshooting of Cisco Routers. You can use this course to learn how to troubleshoot Cisco Routers in real production and to help you to prepare for the CCNP TSHOOT exam and the Troubleshooting section of the CCIE lab exam. If you are already have CCNA level knowledge and/or experience, or you are in the middle of your CCNA studies, then you can use this course as a start for learning advanced troubleshooting.
This course uses multiple explaining ways in addition to videos. At the beginning of the course there is an article for summarized troubleshooting steps that is available for download as a PDF and which I recommend to be read before watching the videos. And for each lab, initial configuration will be available for download in order for students to practice the labs and challenge themselves if they can solve the tickets before watching the videos or even after. In addition, there will be a practice test for the student to check what he has learned. Some tickets have multiple possible solutions. Therefore, restrictions have been set so that there should be only one valid solution.
Let us start the course together and begin the troubleshooting journey. Happy troubleshooting !