How to Add or Change the Default Gateway in Linux

Step-by-Step Guide

1. 1

   Step 1: Open the Terminal.

   You can open the Terminal from the side bar, or by pressing Ctrl+Alt+T.
2. 2

   Step 2: View your current default gateway.

   You can check what your default gateway is set to by typing route and pressing ↵ Enter.
   
   The address next to "default" shows your default gateway, and the interface it is assigned to is displayed on the right side of the table. , If you have more than one default gateway set, you'll run into connection conflicts.
   
   Delete your existing default gateway if you intend to change it.
   
   Type sudo route delete default gw IP Address Adapter.
   
   For example, to delete the default gateway
   10.0.2.2 on the eth0 adapter, type sudo route delete default gw
   10.0.2.2 eth0. , For example, to change the default gateway of the eth0 adapter to
   192.168.1.254, you would type sudo route add default gw
   192.168.1.254 eth0.
   
   You'll be prompted for your user password in order to complete the command. , Type sudo nano /etc/network/interfaces to open the file in the nano editor.
   
   Editing your configuration file will keep your changes every time the system restarts. , Find the section for the adapter you want to change the default gateway for.
   
   For a wired connection, this is usually eth0. , For example, type gateway
   192.168.1.254 to make the default gateway
   192.168.1.254. , Press Ctrl+X and then Y to save your changes and exit. , Restart your network by typing sudo /etc/init.d/networking restart.
3. 3

   Step 3: Delete your current default gateway.

4. 4

   Step 4: Type .sudo route add default gw IP Address Adapter.

5. 5

   Step 5: Open the configuration file in an editor.

6. 6

   Step 6: Navigate to the correct section.

7. 7

   Step 7: Add .gateway IP Address to the section.

8. 8

   Step 8: Save your changes and exit.

9. 9

   Step 9: Restart your network.

Detailed Guide

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