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31 Days Before Your CCENT Certification by Scott Bennett

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Day 27: Troubleshooting and LAN Versus WAN

The following commands display information about connectivity and configuration on a device. Table 1-7 describes general troubleshooting tasks for each OSI layer.

ipconfig shows the IP configuration.

ping tests network layer connectivity between devices.

tracert tests connectivity and displays each hop.

netstat shows any network connections to the device.

nslookup queries the configured name server for DNS information.

Table 1-7. Troubleshooting for Each OSI Layer

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LANs today often represent the logical grouping of hosts for a single organization. Network administrators typically refer to the ...

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