wlan0 interface does not exist, can't find wireless interface

A

achenet

Hello,

I'm trying get the WiFi working on my ThinkPad T480s with FreeBSD 14.

When I try

Code: 
ifconfig wlan0 up scan


I get the error


Code: 
ifconfig: interface wlan0 does not exist


in my /etc/rc.conf

there is no entry for wlan0, only for em0.

If I undersand this correctly, this means my wireless interface is not configured.

How do I configure it?
 
ahev said:
Give me the output of

pciconf -lv | grep -A1 -B3 network
Click to expand...

hello,

the output of
pciconf -lv | grep -A1 -B3 network

is

Code: 
em0@pci0:0:31:6:    class=0x020000 rev=0x21 hdr=0x00 vendor=0x8086 device=0x15d7 subvendor=0x17aa subdevice=0x2258
    vendor     = 'Intel Corporation'
    device     = 'Ethernet Connection (4) I219-LM'
    class      = network
    subclass   = ethernet
--
iwm0@pci0:61:0:0:    class=0x028000 rev=0x78 hdr=0x00 vendor=0x8086 device=0x24fd subvendor=0x8086 subdevice=0x0010
    vendor     = 'Intel Corporation'
    device     = 'Wireless 8265 / 8275'
    class      = network
nvme0@pci0:62:0:0:    class=0x010802 rev=0x00 hdr=0x00 vendor=0x144d device=0xa809 subvendor=0x144d subdevice=0xa801
 
my 14.0-RELEASE-p6 / thinkpad x250 has

Code: 
$ fgrep wlan /etc/rc.conf
wlans_iwm0="wlan0"
create_args_wlan0="country DE powersave"
# create_args_wlan0="country DE regdomain ETSI"
ifconfig_wlan0="WPA DHCP"
ifconfig_wlan0_ipv6="inet6 accept_rtadv"
 
docs.freebsd.org

Chapter 7. Network

This chapter delves into the topic of network configuration and performance, showcasing the robust networking capabilities of the FreeBSD operating system.
docs.freebsd.org docs.freebsd.org

Does this work for you?
 
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ahev said:
docs.freebsd.org

Chapter 7. Network

This chapter delves into the topic of network configuration and performance, showcasing the robust networking capabilities of the FreeBSD operating system.
docs.freebsd.org docs.freebsd.org

Does this work for you?
Click to expand...
I'm not sure how to get the SSID or PSK for my local home network.

EDIT:
I tried putting the "name of network" as SSID and the wifi password as PSK, and then following the rest of the quick start steps:

sysrc wlans_iwn0="wlan0"
sysrc ifconfig_wlan0="WPA DHCP"
service netif restart

however, it still doesn't seem to work.
The output for sysctl net.wlan.devices and pciconf -lv | grep -A1 -B3 network remains the same.
 
mro said:
my 14.0-RELEASE-p6 / thinkpad x250 has

Code: 
$ fgrep wlan /etc/rc.conf
wlans_iwm0="wlan0"
create_args_wlan0="country DE powersave"
# create_args_wlan0="country DE regdomain ETSI"
ifconfig_wlan0="WPA DHCP"
ifconfig_wlan0_ipv6="inet6 accept_rtadv"
Click to expand...
huh..

when I try the same command, I get just
Code: 
create_args_wlan0="country F2"

EDIT: after following the quick start steps, now it says
Code: 
5:create_args_wlan0="country F2"
19:wlans_iwn0="wlan0"
20:ifconfig_wlan0="WPA DHCP"
 
bakul said:
Your sysctl entry shows iwm0 not iwn0.
Click to expand...

thanks for catching that ^_^

now when I run ifconfig wlan0 up scan I get a bunch of info, looks like the info for all the local wifi networks.

I tried just unplugging my ethernet and seeing if it would switch to wifi, not the case, but still, this is progress, thank you very much ^_^
 
achenet said:
I tried just unplugging my ethernet and seeing if it would switch to wifi, not the case
Click to expand...
You will need to do some extra configuring if you want to 'automagically' switch from ethernet to wifi (or vice versa).

docs.freebsd.org

Chapter 34. Advanced Networking

Advanced networking in FreeBSD: basics of gateways and routes, CARP, how to configure multiple VLANs on FreeBSD, etc
docs.freebsd.org docs.freebsd.org
 
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achenet said:
thanks for catching that ^_^

now when I run ifconfig wlan0 up scan I get a bunch of info, looks like the info for all the local wifi networks.

I tried just unplugging my ethernet and seeing if it would switch to wifi, not the case, but still, this is progress, thank you very much ^_^
Click to expand...
that's what the scan does.

I don't need transparent failover, so I use $ wpa_gui plus editing /etc/wpa_supplicant.conf to connect the Wifis I want. And occasionally do $ sudo service netif restart
 
achenet said:
thanks for catching that ^_^

now when I run ifconfig wlan0 up scan I get a bunch of info, looks like the info for all the local wifi networks.
Click to expand...

Is the SSID you want to connect to listed in this output.

If that is the case, you are almost there, just need to specify the required password....

www.raspberrypi-spy.co.uk

Setup WiFi on a Pi Manually using wpa_supplicant.conf - Raspberry Pi Spy

This tutorial explains how to setup WiFi on a Raspberry Pi without a monitor, keyboard and mouse connected to the Pi. Very easy once you know how.
www.raspberrypi-spy.co.uk www.raspberrypi-spy.co.uk
 
SirDice said:
You will need to do some extra configuring if you want to 'automagically' switch from ethernet to wifi (or vice versa).

docs.freebsd.org

Chapter 34. Advanced Networking

Advanced networking in FreeBSD: basics of gateways and routes, CARP, how to configure multiple VLANs on FreeBSD, etc
docs.freebsd.org docs.freebsd.org
Click to expand...
Doesnt FreeBSD 14.0 automatically switches wifi off when ethernet cable gets plugged in and vise versa when disconnects ?
I never did anything and if i use wired - my wifi goes off and powers on if i remove my ethernet.
 
SirDice said:
On Windows perhaps.
Click to expand...
Understood and i know where i got confused.
P.s. This is line i get when im in console and plugging in my Ethernet cable.
Code: 
iwlwifi0: RF_KILL bit toggled to disable radio

Which means it does kill WiFi and if Ethernet is not configured - no internet. Correct ? So by end of the day - if i install trough WiFi - i need to configure Ethernet cable ?
 
GlitchyDot said:
This is line i get when im in console and plugging in my Ethernet cable.
Click to expand...
Looks like this laptop might have some hardware that automatically kills the wireless interface when the ethernet port is active. Annoying feature to be honest. But perhaps you can switch this on/off in the BIOS?

GlitchyDot said:
Which means it does kill WiFi and if Ethernet is not configured - no internet. Correct ?
Click to expand...
Correct.

GlitchyDot said:
if i install trough WiFi - i need to configure Ethernet cable ?
Click to expand...
Unless you're installing from the 'bootonly' images you don't actually need to configure the network during the installer. This can all be done afterwards.
 
SirDice said:
Looks like this laptop might have some hardware that automatically kills the wireless interface when the ethernet port is active. Annoying feature to be honest. But perhaps you can switch this on/off in the BIOS?
Click to expand...
Thank You ! Turns out i do have this option in my BIOS and i can disable it.
Ps. It might be useful for OP then - its ThinkPad T480 motherboard
 
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