Cisco Routing TSHOOT Labs For CCNA, CCNP, and CCIE Students

Master six-router Cisco routing lab with loopback and interface IPs in a GRB domain, SPF zero, and SBF one, using a DCL script to repair tickets with 100 percent success.

Troubleshoot the BGP adjacency by using router 1's loopback as the source, verify neighbors and interfaces, correct a value mismatch by resetting weights to defaults, and bring the session up.

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.

Troubleshoot router 3 and router 4 adjacency by checking interfaces, enabling the protocol, using debug commands, and aligning hello timer values to establish neighbor adjacency and bring the loopback up.

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.

Diagnose and fix a frame-relay connectivity issue across multiple routers by correcting stop area configurations, applying frame-relay parity, and using a DCL script to verify loopback reachability and route redistribution.

Explore routing lab 2 topology and tickets, applying the same base configuration and same tickets as lap 1 while avoiding the neighbor command.

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.

Troubleshoot router adjacencies by verifying interfaces and routing table entries, then remove or modify inbound access list control to resolve adjacency between router 2 and router 3.

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.

Resolve the connectivity issue between router 4 and router 7 by correcting router ids and authentication keys, fixing area configurations, and validating full connectivity with a pc and dcl script.

Work through routing lab 3 topology and tickets, applying the same base configuration as labs 1 and 2 while respecting the restriction not to change the OSPF network type.

Trace and fix a loopback connectivity issue between two routers by aligning the as numbers, correcting vlan mismatches, and updating acls to allow icmp and establish neighbor adjacencies.

Troubleshoot the loopback connectivity between router two and router three by correcting the IP address on the ethernet interface from 32 to 23 and fixing the network command to restore ping.

Troubleshoot loopback connectivity between router three and router four by correcting ospf redistribution with the subnets keyword to redistribute classless subnets and restore reachability.

Troubleshoot OSPF adjacency between router four and router six by diagnosing non-broadcast interface issues, then configure a neighbor on router four to force unicast hello packets, restoring loopback ping reachability.

Resolve loopback connectivity between router four and router seven by enabling unicast OSPF adjacencies, fixing authentication, and validating full connectivity with the TCL script across all routers.

Apply routing lab 4 topology and tickets within the same base configuration, with the constraint that you cannot add to the frame relay configuration, but can modify or replace it.

Resolve loopback connectivity between two routers by enabling IRB interfaces, removing a passive interface, configuring MD5 authentication and matching keychains, and verifying neighbor adjacency to bring up the session.

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 resolve OSPF adjacency between routers four and six by correcting authentication types, area configurations, and frame-relay mappings to establish successful loopback connectivity.

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.