Efficient Steps to Remove a Single Default Gateway on Ubuntu 20- A Comprehensive Guide

How to delete one default gateway on Ubuntu 20

If you’re using Ubuntu 20 and need to remove one of the default gateways, you might be wondering how to go about it. Default gateways are essential for routing network traffic between different networks, but sometimes you may want to delete one if it’s no longer needed or causing issues. In this article, we’ll guide you through the process of deleting a default gateway on Ubuntu 20.

Step 1: Check the current default gateways

Before you proceed with deleting a default gateway, it’s important to know which one you want to remove. To check the current default gateways, open a terminal and run the following command:

“`
ip route show
“`

This command will display all the routing tables, including the default gateways. Look for the line that starts with “default” to identify the default gateway you want to delete.

Step 2: Identify the interface and IP address of the default gateway

To delete a default gateway, you need to know the interface and IP address associated with it. In the output of the `ip route show` command, locate the default gateway line and note the interface (e.g., eth0, wlan0) and the IP address (e.g., 192.168.1.1).

Step 3: Delete the default gateway

Now that you have identified the default gateway you want to delete, use the following command to remove it:

“`
sudo ip route del default via dev
“`

Replace `` with the IP address of the default gateway and `` with the interface associated with it. For example, if you want to delete the default gateway with IP address 192.168.1.1 on the eth0 interface, the command would be:

“`
sudo ip route del default via 192.168.1.1 dev eth0
“`

Step 4: Verify the deletion

After deleting the default gateway, it’s a good idea to verify that it has been removed successfully. Run the `ip route show` command again to check if the default gateway is no longer listed.

Conclusion

Deleting a default gateway on Ubuntu 20 is a straightforward process, as long as you know which one to remove and have the necessary information. By following the steps outlined in this article, you should be able to successfully delete a default gateway and ensure your network configuration remains optimal.