Bind an IP Address to a Network Interface – Ubuntu Netplan

In Ubuntu, you can bind an IP address to a specific network interface and check the network interfaces using various commands. Below are the steps to achieve this:

1. Check Network Interfaces

To list all network interfaces and their configurations, you can use the ip command or ifconfig.

Using ip command:

ip addr show

or

ip a

Using ifconfig (if installed):

ifconfig

2.Bind an IP Address to a Network Interface

Using ip command (temporary):

sudo ip addr add <IP_ADDRESS>/<SUBNET_MASK> dev <INTERFACE_NAME>

Example

sudo ip addr add 192.168.1.100/24 dev eth0

Using netplan (persistent):

Ubuntu uses netplan for network configuration. You can edit the configuration file located in /etc/netplan/

Open the configuration file:

sudo nano /etc/netplan/<configuration_filename.yaml

for BIND A SINGLE IP – Replace

network:
version: 2
renderer: networkd
ethernets:
eth0:
addresses:
- 192.168.1.100/24 #Replace with your primary IP and subnet mask
gateway4: 192.168.1.1 #Replace with your gateway IP
nameservers:
addresses: [8.8.8.8, 8.8.4.4]

for BIND 3 IPS – Replace

network:
version: 2
renderer: networkd
ethernets:
ens3:
dhcp4: no
addresses:
- 202.124.164.76/24 #Replace with your primary IP and subnet mask
- 202.124.164.73/24 #Replace with your secondary IP and subnet mask
- 202.124.164.230/24 #Replace with your tertiary IP and subnet mask
- 192.168.0.22/24 #Replace with your subnet of your primary IP
- 192.168.0.10/24 #Replace with your subnet of your secondary IP
- 192.168.0.198/24 #Replace with your subnet of your tertiary IP
routes:
- to: 0.0.0.0/0
via: 202.124.164.1 #Replace with your gateway IP
nameservers:
addresses:
- 8.8.8.8
- 8.8.4.4

Apply the changes:

sudo netplan apply

3.Verify the IP Binding

After binding the IP address, you can verify it using the ip or ifconfig command.

Using ip command:

ip addr show dev <INTERFACE_NAME>

Example:

ip addr show dev eth0

Using ifconfig:

ifconfig <INTERFACE_NAME>

Example:

ifconfig eth0

4.Check Network Connectivity

To ensure that the IP binding is working correctly, you can ping another device on the network.

ping <TARGET_IP>

Example:

ping 192.168.1.1

5.Restart Network Service (if needed)

If you encounter any issues, you can restart the network service.

Using systemctl:

sodo systemctl restart networking

Using netplan:

sudo netplan apply

This should now work without indentation errors.

offer