Ubuntu Linux Configure Gateway / Default Routing IP Address

Author: Vivek Gite Last updated: June 18, 2008 2 comments

Q. How do I configure default router or gateway IP address under Ubuntu Linux / Debian Linux? How do I change default router / gateway IP under Ubuntu Linux?

A. You can easily configure default router or gateway IP address under Debian / Ubuntu Linux by editing /etc/network/interfaces network configuration file. This file defines how you configure and how your system is connected to the network.

Ubuntu Linux Configure Default Gateway

Open /etc/network/interfaces file:
$ sudo vi /etc/network/interfaces
Set gateway using following syntax:
gateway {router-ip}
For example, set gateway to 192.168.1.254, enter:
gateway 192.168.1.254
At the end it should look like as follows:
iface eth0 inet static address 192.168.1.1 netmask 255.255.255.0 gateway 192.168.1.254
Save and close the file. Restart networking:
$ sudo /etc/init.d/networking restart
Verify new routing is working, enter:
$ ping 192.168.1.254 $ route -n $ host google.com

🐧 Get the latest tutorials on SysAdmin, Linux/Unix, Open Source/DevOps topics:

RSS feed or Weekly email newsletter
Share to Twitter • Facebook • 2 comments... add one ↓

UP NEXT

Category	List of Unix and Linux commands
File Management	cat
Firewall	Alpine Awall • CentOS 8 • OpenSUSE • RHEL 8 • Ubuntu 16.04 • Ubuntu 18.04 • Ubuntu 20.04
Network Utilities	dig • host • ip • nmap
OpenVPN	CentOS 7 • CentOS 8 • Debian 10 • Debian 8/9 • Ubuntu 18.04 • Ubuntu 20.04
Package Manager	apk • apt
Processes Management	bg • chroot • cron • disown • fg • jobs • killall • kill • pidof • pstree • pwdx • time
Searching	grep • whereis • which
User Information	groups • id • lastcomm • last • lid/libuser-lid • logname • members • users • whoami • who • w
WireGuard VPN	CentOS 8 • Debian 10 • Firewall • Ubuntu 20.04