How To Add Or Change The Default Gateway In Linux - WikiHow

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Terms of Use wikiHow is where trusted research and expert knowledge come together. Learn why people trust wikiHow How to Add or Change the Default Gateway in Linux PDF download Download Article Explore this Article parts 1 Using the Terminal 2 Editing Your Configuration File Other Sections Questions & Answers Video Related Articles References Article Summary Author Info

Last Updated: July 22, 2023

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wikiHow is a “wiki,” similar to Wikipedia, which means that many of our articles are co-written by multiple authors. To create this article, 14 people, some anonymous, worked to edit and improve it over time. This article has been viewed 1,168,237 times. Learn more...

If you need to find or change the IP address of your default gateway or router on Linux, you're in luck—it's super easy to do. This wikiHow article will show you how to use the route command to find the default gateway IP address on Linux, and how to set a new default gateway in your /etc/network/interfaces configuration file.

Steps

Part 1 Part 1 of 2:

Using the Terminal

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  1. Step 1 Open the Terminal. 1 Open the Terminal. You can open the Terminal from the side bar, or by pressing Ctrl+Alt+T.[1]
  2. Step 2 View your current default gateway. 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. Advertisement
  3. Step 3 Delete your current default gateway. 3 Delete your current default gateway. 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.
  4. Step 4 Type . 4 Type .sudo route add default gw IP Address Adapter. 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.[2] You'll be prompted for your user password in order to complete the command.
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Part 2 Part 2 of 2:

Editing Your Configuration File

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  1. Step 1 Open the configuration file in an editor. 1 Open the configuration file in an editor. 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.[3]
  2. Step 2 Navigate to the correct section. 2 Navigate to the correct section. Find the section for the adapter you want to change the default gateway for. For a wired connection, this is usually eth0.
  3. Step 3 Add . 3 Add .gateway IP Address to the section. For example, type gateway 192.168.1.254 to make the default gateway 192.168.1.254.[4]
  4. Step 4 Save your changes and exit. 4 Save your changes and exit. Press Ctrl+X and then Y to save your changes and exit.
  5. Step 5 Restart your network. 5 Restart your network. Restart your network by typing sudo /etc/init.d/networking restart.[5]
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  • Question Will the admins know if I change my IP? Community Answer Community Answer Yes, if they chose to check. Thanks! We're glad this was helpful. Thank you for your feedback. If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow Yes No Not Helpful 3 Helpful 10
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References

  1. ↑ https://linuxhint.com/how-to-open-ubuntu-terminal-keyboard-shortcuts/
  2. ↑ https://www.cyberciti.biz/faq/linux-setup-default-gateway-with-route-command/
  3. ↑ https://help.ubuntu.com/community/NetworkConfigurationCommandLine
  4. ↑ https://help.ubuntu.com/community/NetworkConfigurationCommandLine
  5. ↑ https://help.ubuntu.com/community/NetworkConfigurationCommandLine

About This Article

wikiHow is a “wiki,” similar to Wikipedia, which means that many of our articles are co-written by multiple authors. To create this article, 14 people, some anonymous, worked to edit and improve it over time. This article has been viewed 1,168,237 times. How helpful is this? Co-authors: 14 Updated: July 22, 2023 Views: 1,168,237 Categories: Linux | Networking Hardware Article SummaryX

1. Open a terminal window. 2. Type "sudo route delete default gw (IP) (Adapter)" and press Enter. 3. Type "sudo route add default gw (IP) (Adapter)" and press Enter. 4. Open /etc/network/interfaces in a text editor. 5. Update the gateway IP address for the adapter. 6. Save your changes and exit the editor. 7. Type "sudo /etc/init.d/networking restart" and press Enter. Did this summary help you?YesNo

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Click a star to vote Co-authors: 14 Updated: July 22, 2023 Views: 1,168,237

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