CCNA 3.14: Troubleshoot basic Layer 3 end-to-end connectivity issues

Overview:

Layer 3 issues include problems at the network layer with routed protocols as well as routing protocols

Study Notes:

Layer 3 network layer issues
Physical and Data link layers are working properly
Network connectivity issues
Possibly cannot ping
Incorrect IP or subnet mask settings
No gateway configured
Misconfigurations
Connectivity issues
Neighbor issues
Topology database incorrect or incomplete
Routing table incorrect or incomplete
Commands use to troubleshoot layer 3 connectivity issues include ping, traceroute and show

Labs:

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