Re: Weird (to me) state of iwlwifi 11a

[Chris]

On 2025-09-30 03:39, Goran Mekić wrote:

On 9/30/25 01:05, Bjoern A. Zeeb wrote:

On Mon, 29 Sep 2025, Goran Mekić wrote:

Hello,

After watching bz@ talk at this years EuroBSDCon, I learned that iwlwifi supports 11a, but only on newer chipsets. My laptop connects only to 11ng, but here's the weird thing: I see at least one WiFi network on channel 36 through "ifconfig wlan0 scan". I thought that 11a is required to see channel 36, but as a total WiFi noob, I might be totally wrong. Anyway, my question is how to check if my iwlwifi is new enough and why do I see network on channel 36? Thank you!

s/11a/11n and 11ac/    a != ac

/bz

I used terminology found in ifconfig(8). Search for "mode mode" in that man page, so I really wasn't trying to be smart. Does it mean that man page needs an update?

mandatory data, so I appologize. I run 15.0-RELEASE and the card is

# pciconf -lv iwlwifi0@pci0:1:0:0:
iwlwifi0@pci0:1:0:0:    class=0x028000 rev=0x1a hdr=0x00 vendor=0x8086
device=0x2725 subvendor=0x8086 subdevice=0x0024
    vendor     = 'Intel Corporation'
    device     = 'Wi-Fi 6E(802.11ax) AX210/AX1675* 2x2 [Typhoon Peak]'
    class      = network

Is it new enough?

Anyway, I guess being tired from EuroBSDCon trip back home made me forget post the

Yes. It's new enough. I'm on:
iwlwifi0: Detected Intel(R) Wi-Fi 6 AX201 160MHz
bz@ is on (or testing on) an AX210 (like you).
Mine shows:
wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        options=0
        ether 3c:e9:f7:ec:63:d7
        inet 192.168.1.3 netmask 0xffffff00 broadcast 192.168.1.255
        inet6 fe80::3ee9:f7ff:feec:63d7%wlan0 prefixlen 64 scopeid 0x2
        groups: wlan

        regdomain FCC country US authmode WPA2/802.11i privacy ON
        deftxkey UNDEF AES-CCM 2:128-bit txpower 17 bmiss 7 mcastrate 6
        mgmtrate 6 scanvalid 60 -ampdutx ampdurx ampdulimit 64k ampdudensity 4
        -amsdutx amsdurx shortgi -ldpctx ldpcrx -uapsd vht vht40 vht80 vht160
        -vht80p80 wme roaming MANUAL
        parent interface: iwlwifi0
        media: IEEE 802.11 Wireless Ethernet VHT mode 11ac
        status: associated
        nd6 options=23<PERFORMNUD,ACCEPT_RTADV,AUTO_LINKLOCAL>
So you'll easily get the speed and performance you're hoping for.
Install
net/wifi-firmware-iwlwifi-kmod
after installation, perform fwget(8). Which will set your card up in
loader.conf(5) as required for your setup. Enjoy. :)

HTH

--Chris

ssid HighwayToHell channel 157 (5785 MHz 11a vht/80+) bssid 10:0c:6b:4d:44:27

Regards,
meka

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