# How to Add an Additional IP on Arch Linux

> URL: https://www.atlantic.net/vps-hosting/how-to-add-an-additional-ip-on-arch-linux/ | Published: 2015-09-30 | Updated: 2026-03-02 | Author: Alexander Wise

##### Verified and Tested 08/12/2015

## Introduction

This guide will show you how to add an additional public and/or private IP on your Arch Linux server.

### Prerequisites

-An [Arch Linux server](https://www.atlantic.net/vps-hosting/) and an additional public IP reserved and assigned to the server or a private IP chosen for your granted private IP range.

-Netctl installed on the server.

## Adding an Additional IP on Arch Linux

The first thing we will need to do is create a netctl file for eth0 (or edit the current one if it exists.) In our case the file /etc/netctl/eth0 exists, so we’ll edit that and add our additional IP address, y.y.y.y/xy.

```
nano /etc/netctl/eth0
```

```
Connection='ethernet'
Description='Eth0 IPs'
Interface='eth0'
IP='static'
Address=('x.x.x.x/xy' 'y.y.y.y/xy')
Gateway='xg.xg.xg.xg'
DNS=('209.208.127.65' '209.208.25.18')
```

*Connection* is the connection type.

*Description* is a custom description for the connection. You can use what you’d like.

*Interface* is the interface we will be using for the connection.

*IP* is the type the IP will be. Usually this is static or DHCP if you have IP allocation by DHCP available.

*Address* is the list of IP addresses and their associated subnets.  Each IP address needs to be contained inbetween a pair of ‘ ‘ and separated by a space. They need to contain their associated subnet in order to work. This is where you list your main IP and then any additional IP addresses.

*Gateway* is the default gateway for the server. This should be the main IP’s gateway and no others.

*DNS* would be the DNS servers. In this instance I used the Atlantic.Net DNS servers.

 

We then need to restart this by running:

```
netctl restart eth0
```

Once up, you should be good to go and the additional IP should now respond.

 

## Adding an Private IP on Arch Linux

To do a private IP we would need to create a new netctl file that we’ll name eth1. It is essentially the same as adding a public IP only this uses the private interface.

```
nano /etc/netctl/eth1
```

```
Description='Private ethernet connection'
Interface=eth1
Connection=ethernet
IP=static
Address=('x.x.x.x/xy')
```

You can add as many private IPs as you’d like following the IP addition example in the Public IP section. Simply add more IPs between a pair of ‘ ‘ and separated by a space. Once saved, just bring it up with:

```
netctl start eth1
```

Once this is up, your private IP will start working.

 

That’s all there is to adding a new IP address on an Arch Linux system.