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31 Days Before Your CCENT Certification by Scott Bennett

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CCNA Discovery 1, Chapter 9

9.2.3–9.2.5: The following commands allow you to troubleshoot your network connection:

• The ipconfig command allows you to view the IP configuration on a host that is running the Windows operating system. Use the command ipconfig /all to view the MAC address and DHCP and DNS information. To release the IP address obtained from a DHCP server, use the command ipconfig /release at the prompt. Then use the command ipconfig /renew to attempt to receive a new configuration from a DHCP server.

• The ping command allows you to test Layer 3 connectivity between devices. You can ping an IP address, or, to test a host’s capability to resolve DNS, you can ping a domain name. Ping tests connectivity with an echo request and echo ...

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