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:

PacketTracer Lab: CCNA-3.14-Troubleshoot-basic-Layer-3-end-to-end-connectivity-issues.pkt

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