How to Obtain an IP Address Using dhclient

Steps to Obtain an IP Address Using dhclient :

When setting up or troubleshooting network connections in Linux, you may need to manually obtain an IP address for a specific network interface. This can be achieved using the dhclient command, which is the Dynamic Host Configuration Protocol (DHCP) client utility.

Step 1: Open a Terminal

Open a terminal window on your Linux system. You can usually do this by searching for "Terminal" in the applications menu or by using the keyboard shortcut Ctrl + Alt + T.

Step 2: Run dhclient Command

In the terminal, type the following command:

 sudo dhclient -v <interface>

Replace <interface> with the name of the network interface for which you want to obtain an IP address.
For example:

 sudo dhclient -v enp3s0f0

Step 3: Enter Password (if prompted)

You'll be prompted to enter your password to execute the command with superuser (root) privileges. Type your password and press Enter.

Step 4: Monitor Output (Optional)

The -v option makes dhclient run in verbose mode, providing detailed output about the DHCP negotiation process. You can monitor this output to see the progress and any error messages encountered during the process.

Step 5: Check IP Address

After the dhclient command completes successfully, you can verify that the network interface has obtained an IP address by running the ip addr show command or using a network management tool.

Step 6: Test Network Connectivity

Once the network interface has obtained an IP address, you can test network connectivity by pinging a known IP address or domain name:

ping google.com

If the ping is successful, it means that your network connection is working properly and you can access external resources on the Internet.

Step 7: Exit

You can exit the terminal session by typing exit or closing the terminal window.