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====== FreeBSD Wifi Settings ======

Bu yazımda FreeBSD ortamında GUI olmadan nasıl wifi adaptörü ayarlamaları yapılır ondan bahsedeceğim.

====== Does the system see the wifi card? ======

The first thing we need to find out is if the system can use the wifi card.

In version 10 and above, the ifconfig command may no longer show the information of the wifi cards. So you can use the following command.

<code bash>
sysctl net.wlan.devices
</code>

After entering the command, it will give information according to the card type. In my system the feedback is as follows;

<code bash>
net.wlan.devices: iwn0
</code>

I understand from this that my intel card appears as a device with the code **iwn0**, and if you have an atheros card, it may be ath0. In the rest of the article, I will use ''iwn0'' and you will use it if the value is different.

Most wifi cards are not enabled by default during boot. We will provide this. For this we just need to look at the **man** of the card. 

<code bash>
man iwn
</code>

In the Intel IEEE 802.11n wireless network driver manual, it says I need to enter the following in ''/boot/loader.conf''.

in my case it suggests that I add the following codes.

<code bash>
if_iwn_load="YES"
iwn1000fw_load="YES"
iwn100fw_load="YES"
iwn105fw_load="YES"
iwn135fw_load="YES"
iwn2000fw_load="YES"
iwn2030fw_load="YES"
iwn4965fw_load="YES"
iwn5000fw_load="YES"
iwn5150fw_load="YES"
iwn6000fw_load="YES"
iwn6000g2afw_load="YES"
iwn6000g2bfw_load="YES"
iwn6050fw_load="YES"
</code>

Then we need to create the device.

<code bash>
ifconfig wlan create wlandev iwn0
</code>

For this to happen automatically on every startup, we add the following codes in ''/etc/rc.conf''.

<code bash>
wlans_iwn0="wlan0"
</code>

Then we can connect to the wifis around us.

We scan the wifis around with the following command.

<code bash>
ifconfig wlan0 up scan
</code>

Now that we know the name of the wifi network we want to connect to, let's connect.

You can connect to old type insecure wifi networks with the following command. Here the wifi network should not have a password.

<code bash>
ifconfig wlan0 ssid NYPL
</code>

To connect to **WPA/WPA2/Personal** networks, which are frequently used today, we need to do the following.

First, with the following command, we create a file in **/etc/** that will hold the information of our wifi network.

<code bash>
wpa_supplicant -i wlan0 -c /etc/wpa_supplicant.conf
</code>

Then we need to write the following information in this file. If the wifi address is a hidden address, we need to add the line ''scan_ssid=1''.

But you don't need to add it for general home use as there is no hidden wifi.

<code bash>
network={
	# scan_ssid=1
	ssid="__WIFI_ADI__"
	psk="__SIFRE__"
}
</code>

Then we will use the following command to run DHCP.

<code bash>
dhclient wlan0
</code>

For this to be automatic, we need to add the following code in ''/etc/rc.conf''.

<code bash>
ifconfig_wlan0="WPA SYNCDHCP"
</code>

Then we restart netif with the following command.

<code bash>
service netif restart && service routing restart
</code>


The wifi should now be operational.

<wrap onlyprint>Taken from [[en:cs:op:bsd:wifi|UCH Wiki]].</wrap>
<wrap hide>
https://wiki.ulascemh.com/doku.php?id=en:cs:op:bsd:wifi
</wrap>