Wireless network connection in FreeBSD system

Insert the system, automatically recognized, you can see the following information in the/var/log/messages:

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Mar 22:29:16 rzsing Kernel:ugen2.2:at usbus2 Mar 22:29:16 rzsing Kernel:urtwn0:on usbus2

The system version is as follows:

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root@rzsing:~ # Uname-a FreeBSD rzsing 10.0-release FreeBSD 10.0-release #0 r260789:thu 22:34:59 UTC 2014 root@snap.freebsd.org:/usr/ob J/usr/src/sys/generic AMD64

Load module:
Modify/boot/loader.conf, join

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################ ### Wireless ### ################ Legal.realtek.license_ack=1 # License Firmware_load= "YES" # does not load this will prompt for missing firmware module If_urtwn_load= "Yes" this is the kernel drive of this USB wireless network card Wlan_scan_ap_load= "YES" Wlan_scan_sta_load= "YES" Wlan_wep_load= "YES" Wlan_ccmp_load= "YES" Wlan_tkip_load= "YES"

To automatically start the urtwn. In addition to WLAN modules, you must manually indicate the drivers wlan_wep, wlan_ccmp, and Wlan_tkip. The two drivers for wlan_ccmp and Wlan_tkip are only for WPA and 802.11i security protocols. I prefer WPA, which is better than WEP encryption from a security point of view.

Wireless network connection
No line by the setting is very simple, since needless to say. I chose to use the WPA-PSK security type, so I set up/etc/wpa_supplicant.conf, which reads as follows:

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network={ Ssid= "Freebsdap" psk= "xxxxxxxx" }

Where FREEBSDAP is my wireless router's SSID,PSK (ie pre-shared key) is set by the user, with the wireless routing PSK key. Whether using WEP or WPA, it is necessary to set a password if you do not want your machine to be hacked. Additional needs to be included in the/etc/rc.conf

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# WiFi Wlans_urtwn0= "Wlan0" # This must be the same as the Ifconfig list of wireless card names ifconfig_wlan0= "WPA DHCP"

This can be automatically assigned to the IP address from the router when it is started.
First, we confirm that the NIC is recognized.

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# DMESG | grep Wireless root@rzsing:~ # DMESG | grep Wireless # This one is from the notebook, not done, so I bought the following USB wireless network card Iwn0:mem 0xf7f00000-0xf7f01fff IRQ to device 0.0 on PCI3 # DMESG | grep Urtwn0 Urtwn0:on Usbus2 Urtwn0:mac/bb Rtl8188cus, RF 6052 1T1R # Turns out to be a rtl8188cus chip.

And then

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Ifconfig wlan0 Create Wlandev Urtwn0 Ifconfig wlan0 up scan Service Netif Start # This will automatically connect you to the wireless access IP address, of course, if configured correctly, the power-on can be automatically connected to wireless. # ifconfig Urtwn0

where "status:associated" means that the wireless network is connected and can surf the Internet.
Fix your resolv.conf.
If you use DHCP, there is a problem that may keep harassing you, that is, the DNS recorded in/etc/resolv.conf will be modified from time to time. Of course, in addition to violence,

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#chflags schg/etc/resolv.conf

Let it not be modified, but also can be very simple to solve the problem, is to add to the/etc/dhclient.conf

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Prepend domain-name-servers 8.8.8.8, 8.8.4.4; # "man 5 dhclient.conf" for details.

Detailed configuration WiFi to view FreeBSD official documents: