Difference between revisions of "APF/OPOS as Wi-Fi Access Point"

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(Configuration)
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{{Under Construction}}
+
{{Note|Following instructions have only be tested on [[APF6]] and [[OPOS6UL]]}}
  
 
==Installation==
 
==Installation==
* You will need hostapd (installed by default on [[APF6]]):
+
* You will need ''hostapd'' (installed by default on [[APF6]] & [[OPOS6UL]]):
 
<pre class="host">
 
<pre class="host">
 
$ make menuconfig
 
$ make menuconfig
Line 14: Line 14:
 
         [ ]  Enable WPS
 
         [ ]  Enable WPS
 
</pre>
 
</pre>
 +
* then, reflash your rootfs or rsync it, if your board has SSH access through Ethernet port.
  
 
==Configuration==
 
==Configuration==
Line 23: Line 24:
 
<pre class="apf">
 
<pre class="apf">
 
# mkdir -p /etc/hostapd/
 
# mkdir -p /etc/hostapd/
 +
 
# cat > /etc/hostapd/hostapd.conf <<EOF
 
# cat > /etc/hostapd/hostapd.conf <<EOF
 
interface=wlan0
 
interface=wlan0
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# hostapd -B /etc/hostapd/hostapd.conf
 
# hostapd -B /etc/hostapd/hostapd.conf
 
</pre>
 
</pre>
* If the devices connecting to your Access Point require dynamic IP adress allocation, you will need to install a [[DHCP server]] on your APF/OPOS too.
+
* If the devices connecting to your Access Point require dynamic IP address allocation, you will need to install a [[DHCP server]] on your APF/OPOS too.
 +
 
 +
==AP+STA mode==
 +
* It is also possible to configure your module to act as a Wi-Fi client/station (STA), and in the same time offer AP (Access Point) services.
 +
* For this you have to create virtual network interface (here ''uap0'') and use it instead of ''wlan0'' for AP stuff configuration (''hostapd'' and ''dnsmasq''):
 +
<pre class="apf">
 +
# iw dev wlan0 interface add uap0 type __ap
 +
 
 +
# ifconfig uap0 192.168.10.1
 +
</pre>
 +
* So after this you have:
 +
** a Wi-Fi interface ''wlan0'' for station(STA)/client mode usable with for example [[WPA supplicant]]
 +
** and a Wi-Fi interface ''uap0'' for access point(AP) mode, usable with previous instructions on this page.
  
 
[[Category:Wireless]]
 
[[Category:Wireless]]

Revision as of 18:51, 13 December 2017

Note Note: Following instructions have only be tested on APF6 and OPOS6UL


Installation

  • You will need hostapd (installed by default on APF6 & OPOS6UL):
$ make menuconfig
Target packages  --->
    Networking applications  --->
        [*] hostapd
        [ ]   Enable EAP
        [ ]   Enable WPS
  • then, reflash your rootfs or rsync it, if your board has SSH access through Ethernet port.

Configuration

  • Bring up your Wi-Fi interface and give it an address (here 192.168.2.1):
# ifconfig wlan0 up 192.168.2.1 netmask 255.255.255.0
  • Create /etc/hostapd/ directory and put it this hostapd.conf configuration file:
# mkdir -p /etc/hostapd/

# cat > /etc/hostapd/hostapd.conf <<EOF
interface=wlan0
ctrl_interface=/var/run/hostapd
ssid=APF6
hw_mode=g
channel=6
#auth_algs=1
wpa=2
wpa_passphrase=YOUHOULESBILOUS
wpa_key_mgmt=WPA-PSK WPA-PSK-SHA256
EOF

  • here we used fixed channel (6) (as some drivers can't allow hostapd to find less occupied channel through scanning)
  • security is WPA2-PSK. To have "Open" Access Point uncomment #auth_algs=1 and comment 3 wpa lines
  • Launch hostapd:
# hostapd -B /etc/hostapd/hostapd.conf
  • If the devices connecting to your Access Point require dynamic IP address allocation, you will need to install a DHCP server on your APF/OPOS too.

AP+STA mode

  • It is also possible to configure your module to act as a Wi-Fi client/station (STA), and in the same time offer AP (Access Point) services.
  • For this you have to create virtual network interface (here uap0) and use it instead of wlan0 for AP stuff configuration (hostapd and dnsmasq):
# iw dev wlan0 interface add uap0 type __ap

# ifconfig uap0 192.168.10.1
  • So after this you have:
    • a Wi-Fi interface wlan0 for station(STA)/client mode usable with for example WPA supplicant
    • and a Wi-Fi interface uap0 for access point(AP) mode, usable with previous instructions on this page.