How to set Static IP Address & Default Gateway in Ubuntu

How to set Static IP Address & Default Gateway in Ubuntu

Edit “/etc/network/interfaces” to reflect something like this:

sudo vi /etc/network/interfaces

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto eth0
iface eth0 inet static
address xxx.xxx.xxx.xxx (enter your ip here)
netmask xxx.xxx.xxx.xxx (mine was 255.255.255.0)
network xxx.xxx.xxx.xxx (enter Network id IP here)
broadcast xxx.xxx.xxx.xxx (enter Broadcast id IP here)
gateway xxx.xxx.xxx.xxx (enter gateway ip here,usually the address of the router)
dns-nameservers xxx.xxx.xxx.xxx (enter DNS IP here)

Then do a:

sudo /etc/init.d/networking restart

Check:

ifconfig eth0

 

To Set Default Gateway

sudo route add default gw <GATEWAY_IP> eth0

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