hotspot

By the end of this tutorial you will be able to access your Raspberry Pi 3 as Wi-Fi Hotpot. Before getting started please make sure that your module is ppp Internet connected. If not please follow the steps from tutorial 3.

Here we go;

1. Install required packages:

sudo apt-get install dnsmasq hostapd

2. You need to configure wlan0 with a static IP.

3. If your Raspberry Pi 3 is connected via Wi-Fi, connect it via Ethernet first.

4. Ignore wlan0. For this type
sudo nano /etc/dhcpcd.conf
which opens up dhcpcd configuration file, then add
denyinterfaces wlan0
at the end of it.

5. This step includes configuration of Static IP. Type
sudo nano /etc/network/interfaces
and add/edit wlan0 section to following configuration

Next, we need to configure hostapd.

6. Create a new configuration file with
sudo nano /etc/hostapd/hostapd.conf
and add the following contents:

7. Now open up the default configuration file typing
sudo nano /etc/default/hostapd
find the line #DAEMON_CONF=""

replace the line with DAEMON_CONF="/etc/hostapd/hostapd.conf".

8. Present dnsmasq config file contains a bunch of informations about how to use it, but it’s majority is useless for us here. It is advised to not delete rather create a new configuration file.
sudo mv /etc/dnsmasq.conf /etc/dnsmasq.conf.orig
sudo nano /etc/dnsmasq.conf
Paste the following lines into the new file you have just created:

9. Now you will enable packet forwarding. For this, type

sudo nano /etc/sysctl.conf

to open sysctl.conf. Here find the line

net.ipv4.ip_forward=1

And remove # sign from the beginning of the line.

10. Now reboot your Raspberry Pi

sudo reboot

11. Now we will share our Raspberry Pi’s Internet Connection to the devices connected over the wifi. This needs configuration of NAT between wlan0 and ppp0 interfaces.

This step needs to be repeated every time you reboot the Raspberry Pi. To avoid it, run

sudo sh -c “iptables-save > /etc/iptables.ipv4.nat”

which saves the rules to a file /etc/iptables.ipv4.nat

As you will need to run this after each reboot, open the rc.local file typing

sudo nano /etc/rc.local

and just above the line exit 0,

add the following line:
iptables-restore < /etc/iptables.ipv4.nat

12. Start the services:
sudo service hostapd start
sudo service dnsmasq start

Now you will be able to connect to the Internet via Wi-Fi

I would like to thank Phil Martin for his tutorial using your new Raspberry Pi 3 as a WIFI access point with hostapd.[/vc_column_text][/vc_column][/vc_row]

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