This tutorial explains how to setup an additional IPv4 address on your Vultr VPS. We will assume the following:
- The Main IP Address of your VPS is
1.2.3.4. - You have purchased an additional IP address through the Vultr control panel, and you were assigned
1.2.3.5.
Regardless of the operating system installed on your VPS, you must reboot the VPS after purchasing a second IPv4 address.
Each example below will configure the secondary IP address to become automatically available, and remain configured even after your server is rebooted. You can test if the IP address is configured by pinging it with the ping utility on your client computer.
CentOS 6
-
Change the boot protocol from "dhcp" to "static" on eth0. If you are already using a static binding, you can skip this step. Otherwise, follow these directions:
- Open
/etc/sysconfig/network-scripts/ifcfg-eth0in a text editor. - Change
BOOTPROTO=dhcptoBOOTPROTO=static. -
Add these lines at the end of the file. Substitute "
[mainip]", "[netmask]", and "[gateway]" with the values from the "IPv4" tab on your Vultr control panel.IPADDR=[mainip] NETMASK=[netmask] GATEWAY=[gateway] -
Run
ifup eth0.
- Open
-
Create the file
/etc/sysconfig/network-scripts/ifcfg-eth0:1. -
Populate the file with the following contents:
DEVICE=eth0:1 BOOTPROTO=static IPADDR=1.2.3.5 ONBOOT=yes -
Activate the alias with the following command:
ifup eth0:1
