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31 Days Before Your CCENT Certification by Scott Bennett

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Day 13: IP Address Troubleshooting

If your computer is configured to obtain an IP address automatically, you can follow these steps to check DHCP operation:

Step 1. Check the IP configuration on your host. Open a command prompt, and enter the command ipconfig /all. Look at the subnet mask, gateway, DNS settings, and IP address.

Step 2. Make sure that the gateway and host IP addresses are on the same network.

Step 3. Try releasing and renewing the dynamic IP address with the commands ipconfig /release and ipconfig /renew.

A successful ping to your gateway router followed by an unsuccessful ping to an Internet address indicates a problem with your connection between the router and the ISP. You can first check that your router has a public IP address ...

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