Adding more IP addresses in Ubuntu

Open /etc/network/interfaces

Example of the file is below:

Code:

---

auto lo
iface lo inet loopback

auto eth0
iface eth0 inet static
        address 207.210.118.56
        netmask 255.255.255.224
        broadcast 207.210.118.63
        network 207.210.118.32
        gateway 207.210.118.33

---

Add a new line

Code:

---

auto eth0:1

---

below

Code:

---

auto eth0

---

and new interface description

Code:

---

iface eth0:1 inet static
        address 207.210.118.58
        netmask 255.255.255.224
        broadcast 207.210.118.63
        network 207.210.118.32
        gateway 207.210.118.33

---

Make sure that the mask and gateway is correct.

The resulting file would look like this:

Code:

---

auto lo
iface lo inet loopback

auto eth0
auto eth0:1
iface eth0 inet static
        address 207.210.118.56
        netmask 255.255.255.224
        broadcast 207.210.118.63
        network 207.210.118.32
        gateway 207.210.118.33
iface eth0:1 inet static
        address 207.210.118.58
        netmask 255.255.255.224
        broadcast 207.210.118.63
        network 207.210.118.32
        gateway 207.210.118.33

---

When this done execute

/etc/init.d/networking restart

Edit the /etc/network/interfaces file and enter the relevant IP data to permanently add a secondary IP address to an Ubuntu machine. Check the IP address that was just added: # eth0 ifconfig Encaption of the link: Ethernet HWaddr 08:00:27:98:b7:36 inet addr:192.168.56.150 Bcast:192.168.56.150 HWaddr 08:00:27:98:b7:36 inet addr:192.168.56.150