
Explore practical IPv6 troubleshooting for Cisco IPv6 TSHOOT labs with structured, logical approaches to diagnose issues. Access downloadable articles, initial configurations for labs, and a practice test to assess progress.
Explore ipv6 labs topology and tickets in the Shishko Troubleshooting Labs course, configuring ipv6 routing with version three and repairing tickets across a four-router network.
Troubleshoot IPv6 connectivity between serial and tunnel interfaces by diagnosing interface states, tunnel source/destination mismatches, and IPv6 reachability through route advertisement and frame map configuration.
Troubleshoot ipv6 connectivity between routers, identify tunnel protocol mismatch and acl blocking ipv6, adjust tunnel and channel settings, verify adjacency, and ensure route advertisement and frame mapping restore reachability.
Repair the six-router topology so each loopback can reach every other loopback using a TCL script in privileged mode, without altering the OSPF network types.
Resolve connectivity between router one and router two loopbacks by correcting IS-IS metric weights to default, restore adjacency, and verify by pinging 2.2.2.2 from router one’s loopback.
Diagnose and fix the loopback connectivity between router two and router three by aligning IP IRB interfaces, Ethernet interface protocols, and hello mode (unicast vs multicast).
Resolve connectivity between router three and four by aligning ospf hello timers on interfaces ethernet 0/1 and 0/0, enabling ospf, and verifying loopback reachability via ping after adjacency comes up.
Trace and fix a loopback connectivity issue between router four and router six by correcting OSPF network statements, enabling OSPF on interfaces, enabling frame-relay broadcast, and validating adjacency and routes.
Resolve OSPF adjacency and loopback reachability across a frame-relay network by correcting stop area and DR configurations, implementing frame-relay maps and redistribution metrics, validated with a Tcl script.
Practice routing lab 2 topology and tickets in the Cisco Troubleshooting Labs course, with the same base configuration as lab 1 but not using the neighbor command.
Resolve loopback connectivity by correcting the network command IP to 12.1, enabling ip protocols on the IRB interfaces, and establishing iBGP adjacency to reach the 2.2.2.2 loopback.
Diagnose why router two cannot form adjacency with router three by tracing hello packets and routing tables. An inbound access-list on Ethernet 0/1 blocks hellos, so removing it restores adjacency.
Troubleshoot the connectivity between router three and router four loopbacks. Resolve the OSPF area mismatch by changing router four to area zero, re-establish adjacency, and confirm reachability.
Diagnose an OSPF adjacency issue between router four and router six by fixing non-broadcast interface settings and key mismatches, restoring adjacency and testing loopback connectivity.
Resolve an OSPF connectivity issue between router four and router seven by correcting the authentication key, duplicate router IDs, and discontiguous backbone area, then verify connectivity with a TCL script.
** 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.
IPv4 uses 32 bits and can address about 4 billion addresses. At the beginning, that was enough. However, with the growth of the Internet, the address space started to be consumed quickly. Private IP addressing NAT or network address translation, CIDR and VLSM helped to slow this consumption, but the issue was still there. It was apparent that a new addressing mechanism should be developed, so IPv6 was created that uses 128 bit addresses.
When someone built a new big house, he or she will add better facilities to this house in addition to enjoying the new size. In addition to IPV6 bigger addressing space, IPv6 includes many new capabilities that simply aren’t available in IPv4.
Since IPv6 is the future of IP addressing considering its large address space and critical improvements, it is vital to understand how to perform troubleshooting of this protocol.
In this course you learn how to troubleshoot IPv6 issues on 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.
To understand how troubleshoot IPv6, it is essential to understand how to troubleshoot Ipv4 routing issues, since could be built over IPv4 infrastructure. Therefore I have added a lab to start learning how to troubleshoot IPv4 routing issues.
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.
Let us start the course together and begin the troubleshooting journey. Happy troubleshooting !