Wifi6 detection/settings in OpenWrt

Installing and Using OpenWrt
1

Just got my first wifi6-capable device compatible with OpenWrt: the GL.Inet MT3000. I'm struggling to understand the wifi setup on it tho.

According to Wiki, for the wifi6-devices, the band should be set to 6g: https://openwrt.org/docs/guide-user/network/wifi/basic, however the default settings in OpenWrt are band=5g, htmode=HE80.

How do I enable/force the wifi6/802.11ax only on this radio?

Also, as a part of the uci-defaults for the custom build I'd set different SSIDs for different bands. I'd just check the band setting in the device to set the proper SSID for the interface. But as I've discovered with the MT3000, even if the radio is 6g-capable, the default OpenWrt setting for band is still 5g. What can I use in the uci-defaults script to check if the radio supports 6g and set the SSID accordingly?

Thanks!

2

I can't really check that here, but please check that iw reg get reports the correct settings.

3

I feel that you might be mixing wifi6 = 802.11ax and 6 Ghz frequency band capability (6g band), which have no mandatory connection.

2 Likes
4

Indeed, neither the vendor specifications nor the OpenWrt commit suggest this device to be 6 GHz (wifi6e) capable, very few device do (and those tend to be rather large, expensive and not supported by OpenWrt yet (apart from only two ones known, Acer Predator W6 and the Telenor branded ZyXEL ex5700; there should also be a few very high-end ipq807x devices that might be supportable)).

5

Yes, as @hnyman suggests, you may well be confusing wifi6 (5GHz ax) with wifi6e (6GHz ax). However....

I am currently testing the new version of mesh11sd and have found that indeed these do seem to support 6GHz operation (or at least try to). I will qualify this in that I do not have any user devices I can try a 6GHz connection with.

Instead I have been trying to use 2 or 3 MT3000s talking to each other on a mesh, but we can go into the "potential bugs" in OpenWrt wifi6 handling that seem to be present later.

Going back to your question, it is the htmode setting that determines the mode.
The HE80 setting puts the radio into ax mode (also compatible with ac devices)
So by default you will get 80 MHz bandwidth ax on channel 36 (actually centred on channel 42).

The output of iwinfo will show:

phy1-ap0  ESSID: "OpenWrt-85ea"
          Access Point: 94:83:C4:36:85:E9
          Mode: Master  Channel: 36 (5.180 GHz)  HT Mode: HE80
          Center Channel 1: 42 2: unknown
          Tx-Power: 23 dBm  Link Quality: unknown/70
          Signal: unknown  Noise: -92 dBm
          Bit Rate: unknown
          Encryption: none
          Type: nl80211  HW Mode(s): 802.11ac/ax/n
          Hardware: embedded [MediaTek MT7981]
          TX power offset: none
          Frequency offset: none
          Supports VAPs: yes  PHY name: phy1

Now, if I set band to 6g, channel to 87 (with a DFS-ETSI or DFS-FCC country code), I get:

phy1-ap0  ESSID: "OpenWrt"
          Access Point: 94:83:C4:36:85:E9
          Mode: Master  Channel: 87 (6.385 GHz)  HT Mode: NOHT
          Center Channel 1: unknown 2: unknown
          Tx-Power: 23 dBm  Link Quality: unknown/70
          Signal: unknown  Noise: -92 dBm
          Bit Rate: unknown
          Encryption: none
          Type: nl80211  HW Mode(s): 802.11ac/ax/n
          Hardware: embedded [MediaTek MT7981]
          TX power offset: none
          Frequency offset: none
          Supports VAPs: yes  PHY name: phy1

Note the "Channel: 87 (6.385 GHz)" part.
Channel 87, with band 6g is the best choice as it should work for most countries (but not apparently for DFS-Unset - code 00)

You can see the channel allocations here:

However if I try to configure a mesh interface it defaults back to ch36-5g, so I cannot test 6g working as I do not have a suitable user device.
(I tracked down the "mesh on ax" problem as the fact that the iw utility does not (yet) support ax)

6

This is the output:

# iw reg get
global
country GB: DFS-ETSI
	(2400 - 2483 @ 40), (N/A, 20), (N/A)
	(5150 - 5250 @ 80), (N/A, 23), (N/A), NO-OUTDOOR, AUTO-BW
	(5250 - 5350 @ 80), (N/A, 20), (0 ms), NO-OUTDOOR, DFS, AUTO-BW
	(5470 - 5730 @ 160), (N/A, 26), (0 ms), DFS
	(5725 - 5850 @ 80), (N/A, 23), (N/A), NO-OUTDOOR
	(5925 - 6425 @ 160), (N/A, 23), (N/A), NO-OUTDOOR
	(57000 - 71000 @ 2160), (N/A, 40), (N/A)

You're right, I was under impression that the band setting is used to control the mode, however after revisiting the wiki it explicitly says htmode is used for that.

Thanks for confirming, it wasn't clear to me from the wiki on a first check.

7

iw listshould tell you exactly which channels are (deemed) available, both based on the physical hardware and the regulatory settings.

1 Like
8

It seems the iw utility does not yet support anything ax related, either wifi6 or wifi6e.
It returns some information if the driver supports it, but certainly cannot set anything - which is why it is not possible to create a mesh interface on ax - it defaults back to ac.

9

Yes and no, it should display any 6 GHz channels though - if supported by the hardware and/ or enabled for the configured regdomain (the following is from mt7921 (2.4+5 GHz) and mt7921au (2.4+5+6 GHz):

Wiphy phy1
	wiphy index: 1
	max # scan SSIDs: 4
	max scan IEs length: 482 bytes
	max # sched scan SSIDs: 10
	max # match sets: 16
	Retry short limit: 7
	Retry long limit: 4
	Coverage class: 0 (up to 0m)
	Device supports AP-side u-APSD.
	Device supports T-DLS.
	Available Antennas: TX 0x3 RX 0x3
	Configured Antennas: TX 0x3 RX 0x3
	Supported interface modes:
		 * managed
		 * AP
		 * AP/VLAN
		 * monitor
		 * P2P-client
		 * P2P-GO
	Band 1:
		Capabilities: 0x9ff
			RX LDPC
			HT20/HT40
			SM Power Save disabled
			RX Greenfield
			RX HT20 SGI
			RX HT40 SGI
			TX STBC
			RX STBC 1-stream
			Max AMSDU length: 7935 bytes
			No DSSS/CCK HT40
		Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
		Minimum RX AMPDU time spacing: No restriction (0x00)
		HT TX/RX MCS rate indexes supported: 0-15
		HE Iftypes: managed
			HE MAC Capabilities (0x08011a000040):
				+HTC HE Supported
				Trigger Frame MAC Padding Duration: 2
				OM Control
				Maximum A-MPDU Length Exponent: 3
				A-MSDU in A-MPDU
			HE PHY Capabilities: (0x2270ce120dc0b306423f00):
				HE40/2.4GHz
				242 tone RUs/2.4GHz
				Device Class: 1
				LDPC Coding in Payload
				HE SU PPDU with 1x HE-LTF and 0.8us GI
				NDP with 4x HE-LTF and 3.2us GI
				STBC Tx <= 80MHz
				STBC Rx <= 80MHz
				Full Bandwidth UL MU-MIMO
				Partial Bandwidth UL MU-MIMO
				DCM Max Constellation: 2
				DCM Max Constellation Rx: 2
				SU Beamformee
				Beamformee STS <= 80Mhz: 3
				Ng = 16 SU Feedback
				Ng = 16 MU Feedback
				Codebook Size SU Feedback
				Codebook Size MU Feedback
				Triggered CQI Feedback
				Partial Bandwidth Extended Range
				PPE Threshold Present
				Power Boost Factor ar
				HE SU PPDU & HE PPDU 4x HE-LTF 0.8us GI
				20MHz in 40MHz HE PPDU 2.4GHz
				DCM Max BW: 1
				Longer Than 16HE SIG-B OFDM Symbols
				Non-Triggered CQI Feedback
				TX 1024-QAM
				RX 1024-QAM
				RX Full BW SU Using HE MU PPDU with Compression SIGB
				RX Full BW SU Using HE MU PPDU with Non-Compression SIGB
			HE RX MCS and NSS set <= 80 MHz
				1 streams: MCS 0-11
				2 streams: MCS 0-11
				3 streams: not supported
				4 streams: not supported
				5 streams: not supported
				6 streams: not supported
				7 streams: not supported
				8 streams: not supported
			HE TX MCS and NSS set <= 80 MHz
				1 streams: MCS 0-11
				2 streams: MCS 0-11
				3 streams: not supported
				4 streams: not supported
				5 streams: not supported
				6 streams: not supported
				7 streams: not supported
				8 streams: not supported
			PPE Threshold 0x39 0x1c 0xc7 0x71 0x1c 0x07 
		EHT Iftypes: managed
			EHT MAC Capabilities (0x0000):
			EHT PHY Capabilities: (0x0000000000000000):
			EHT MCS/NSS: (0x):
			EHT bw=20 MHz, max NSS for MCS 0-7: Rx=0, Tx=0
			EHT bw=20 MHz, max NSS for MCS 8-9: Rx=0, Tx=0
			EHT bw=20 MHz, max NSS for MCS 10-11: Rx=0, Tx=0
			EHT bw=20 MHz, max NSS for MCS 12-13: Rx=0, Tx=0
		HE Iftypes: AP
			HE MAC Capabilities (0x00011a081044):
				+HTC HE Supported
				BSR
				OM Control
				Maximum A-MPDU Length Exponent: 3
				BQR
				A-MSDU in A-MPDU
				OM Control UL MU Data Disable RX
			HE PHY Capabilities: (0x0220ce120000a000000c00):
				HE40/2.4GHz
				LDPC Coding in Payload
				NDP with 4x HE-LTF and 3.2us GI
				STBC Tx <= 80MHz
				STBC Rx <= 80MHz
				Full Bandwidth UL MU-MIMO
				Partial Bandwidth UL MU-MIMO
				DCM Max Constellation: 2
				DCM Max Constellation Rx: 2
				Partial Bandwidth Extended Range
				PPE Threshold Present
				TX 1024-QAM
				RX 1024-QAM
			HE RX MCS and NSS set <= 80 MHz
				1 streams: MCS 0-11
				2 streams: MCS 0-11
				3 streams: not supported
				4 streams: not supported
				5 streams: not supported
				6 streams: not supported
				7 streams: not supported
				8 streams: not supported
			HE TX MCS and NSS set <= 80 MHz
				1 streams: MCS 0-11
				2 streams: MCS 0-11
				3 streams: not supported
				4 streams: not supported
				5 streams: not supported
				6 streams: not supported
				7 streams: not supported
				8 streams: not supported
			PPE Threshold 0x39 0x1c 0xc7 0x71 0x1c 0x07 
		EHT Iftypes: AP
			EHT MAC Capabilities (0x0000):
			EHT PHY Capabilities: (0x0000000000000000):
			EHT MCS/NSS: (0x):
			EHT bw=20 MHz, max NSS for MCS 0-7: Rx=0, Tx=0
			EHT bw=20 MHz, max NSS for MCS 8-9: Rx=0, Tx=0
			EHT bw=20 MHz, max NSS for MCS 10-11: Rx=0, Tx=0
			EHT bw=20 MHz, max NSS for MCS 12-13: Rx=0, Tx=0
		Frequencies:
			* 2412 MHz [1] (20.0 dBm)
			* 2417 MHz [2] (20.0 dBm)
			* 2422 MHz [3] (20.0 dBm)
			* 2427 MHz [4] (20.0 dBm)
			* 2432 MHz [5] (20.0 dBm)
			* 2437 MHz [6] (20.0 dBm)
			* 2442 MHz [7] (20.0 dBm)
			* 2447 MHz [8] (20.0 dBm)
			* 2452 MHz [9] (20.0 dBm)
			* 2457 MHz [10] (20.0 dBm)
			* 2462 MHz [11] (20.0 dBm)
			* 2467 MHz [12] (20.0 dBm)
			* 2472 MHz [13] (20.0 dBm)
			* 2484 MHz [14] (disabled)
	Band 2:
		Capabilities: 0x9ff
			RX LDPC
			HT20/HT40
			SM Power Save disabled
			RX Greenfield
			RX HT20 SGI
			RX HT40 SGI
			TX STBC
			RX STBC 1-stream
			Max AMSDU length: 7935 bytes
			No DSSS/CCK HT40
		Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
		Minimum RX AMPDU time spacing: No restriction (0x00)
		HT TX/RX MCS rate indexes supported: 0-15
		VHT Capabilities (0x339071b2):
			Max MPDU length: 11454
			Supported Channel Width: neither 160 nor 80+80
			RX LDPC
			short GI (80 MHz)
			TX STBC
			SU Beamformee
			MU Beamformee
			RX antenna pattern consistency
			TX antenna pattern consistency
		VHT RX MCS set:
			1 streams: MCS 0-9
			2 streams: MCS 0-9
			3 streams: not supported
			4 streams: not supported
			5 streams: not supported
			6 streams: not supported
			7 streams: not supported
			8 streams: not supported
		VHT RX highest supported: 0 Mbps
		VHT TX MCS set:
			1 streams: MCS 0-9
			2 streams: MCS 0-9
			3 streams: not supported
			4 streams: not supported
			5 streams: not supported
			6 streams: not supported
			7 streams: not supported
			8 streams: not supported
		VHT TX highest supported: 0 Mbps
		VHT extended NSS: supported
		HE Iftypes: managed
			HE MAC Capabilities (0x08011a000040):
				+HTC HE Supported
				Trigger Frame MAC Padding Duration: 2
				OM Control
				Maximum A-MPDU Length Exponent: 3
				A-MSDU in A-MPDU
			HE PHY Capabilities: (0x4470ce120dc0b306423f00):
				HE40/HE80/5GHz
				242 tone RUs/5GHz
				Device Class: 1
				LDPC Coding in Payload
				HE SU PPDU with 1x HE-LTF and 0.8us GI
				NDP with 4x HE-LTF and 3.2us GI
				STBC Tx <= 80MHz
				STBC Rx <= 80MHz
				Full Bandwidth UL MU-MIMO
				Partial Bandwidth UL MU-MIMO
				DCM Max Constellation: 2
				DCM Max Constellation Rx: 2
				SU Beamformee
				Beamformee STS <= 80Mhz: 3
				Ng = 16 SU Feedback
				Ng = 16 MU Feedback
				Codebook Size SU Feedback
				Codebook Size MU Feedback
				Triggered CQI Feedback
				Partial Bandwidth Extended Range
				PPE Threshold Present
				Power Boost Factor ar
				HE SU PPDU & HE PPDU 4x HE-LTF 0.8us GI
				20MHz in 40MHz HE PPDU 2.4GHz
				DCM Max BW: 1
				Longer Than 16HE SIG-B OFDM Symbols
				Non-Triggered CQI Feedback
				TX 1024-QAM
				RX 1024-QAM
				RX Full BW SU Using HE MU PPDU with Compression SIGB
				RX Full BW SU Using HE MU PPDU with Non-Compression SIGB
			HE RX MCS and NSS set <= 80 MHz
				1 streams: MCS 0-11
				2 streams: MCS 0-11
				3 streams: not supported
				4 streams: not supported
				5 streams: not supported
				6 streams: not supported
				7 streams: not supported
				8 streams: not supported
			HE TX MCS and NSS set <= 80 MHz
				1 streams: MCS 0-11
				2 streams: MCS 0-11
				3 streams: not supported
				4 streams: not supported
				5 streams: not supported
				6 streams: not supported
				7 streams: not supported
				8 streams: not supported
			PPE Threshold 0x39 0x1c 0xc7 0x71 0x1c 0x07 
		EHT Iftypes: managed
			EHT MAC Capabilities (0x0000):
			EHT PHY Capabilities: (0x0000000000000000):
			EHT MCS/NSS: (0x):
			EHT bw <= 80 MHz, max NSS for MCS 8-9: Rx=0, Tx=0
			EHT bw <= 80 MHz, max NSS for MCS 10-11: Rx=0, Tx=0
			EHT bw <= 80 MHz, max NSS for MCS 12-13: Rx=0, Tx=0
		HE Iftypes: AP
			HE MAC Capabilities (0x00011a081044):
				+HTC HE Supported
				BSR
				OM Control
				Maximum A-MPDU Length Exponent: 3
				BQR
				A-MSDU in A-MPDU
				OM Control UL MU Data Disable RX
			HE PHY Capabilities: (0x0420ce120000a000000c00):
				HE40/HE80/5GHz
				LDPC Coding in Payload
				NDP with 4x HE-LTF and 3.2us GI
				STBC Tx <= 80MHz
				STBC Rx <= 80MHz
				Full Bandwidth UL MU-MIMO
				Partial Bandwidth UL MU-MIMO
				DCM Max Constellation: 2
				DCM Max Constellation Rx: 2
				Partial Bandwidth Extended Range
				PPE Threshold Present
				TX 1024-QAM
				RX 1024-QAM
			HE RX MCS and NSS set <= 80 MHz
				1 streams: MCS 0-11
				2 streams: MCS 0-11
				3 streams: not supported
				4 streams: not supported
				5 streams: not supported
				6 streams: not supported
				7 streams: not supported
				8 streams: not supported
			HE TX MCS and NSS set <= 80 MHz
				1 streams: MCS 0-11
				2 streams: MCS 0-11
				3 streams: not supported
				4 streams: not supported
				5 streams: not supported
				6 streams: not supported
				7 streams: not supported
				8 streams: not supported
			PPE Threshold 0x39 0x1c 0xc7 0x71 0x1c 0x07 
		EHT Iftypes: AP
			EHT MAC Capabilities (0x0000):
			EHT PHY Capabilities: (0x0000000000000000):
			EHT MCS/NSS: (0x):
			EHT bw <= 80 MHz, max NSS for MCS 8-9: Rx=0, Tx=0
			EHT bw <= 80 MHz, max NSS for MCS 10-11: Rx=0, Tx=0
			EHT bw <= 80 MHz, max NSS for MCS 12-13: Rx=0, Tx=0
		Frequencies:
			* 5180 MHz [36] (23.0 dBm)
			* 5200 MHz [40] (23.0 dBm)
			* 5220 MHz [44] (23.0 dBm)
			* 5240 MHz [48] (23.0 dBm)
			* 5260 MHz [52] (20.0 dBm) (radar detection)
			* 5280 MHz [56] (20.0 dBm) (radar detection)
			* 5300 MHz [60] (20.0 dBm) (radar detection)
			* 5320 MHz [64] (20.0 dBm) (radar detection)
			* 5500 MHz [100] (26.0 dBm) (radar detection)
			* 5520 MHz [104] (26.0 dBm) (radar detection)
			* 5540 MHz [108] (26.0 dBm) (radar detection)
			* 5560 MHz [112] (26.0 dBm) (radar detection)
			* 5580 MHz [116] (26.0 dBm) (radar detection)
			* 5600 MHz [120] (26.0 dBm) (radar detection)
			* 5620 MHz [124] (26.0 dBm) (radar detection)
			* 5640 MHz [128] (26.0 dBm) (radar detection)
			* 5660 MHz [132] (26.0 dBm) (radar detection)
			* 5680 MHz [136] (26.0 dBm) (radar detection)
			* 5700 MHz [140] (26.0 dBm) (radar detection)
			* 5720 MHz [144] (13.0 dBm) (radar detection)
			* 5745 MHz [149] (13.0 dBm)
			* 5765 MHz [153] (13.0 dBm)
			* 5785 MHz [157] (13.0 dBm)
			* 5805 MHz [161] (13.0 dBm)
			* 5825 MHz [165] (13.0 dBm)
			* 5845 MHz [169] (13.0 dBm)
			* 5865 MHz [173] (13.0 dBm)
			* 5885 MHz [177] (disabled)
	Band 4:
		HE Iftypes: managed
			HE MAC Capabilities (0x08011a000040):
				+HTC HE Supported
				Trigger Frame MAC Padding Duration: 2
				OM Control
				Maximum A-MPDU Length Exponent: 3
				A-MSDU in A-MPDU
			HE PHY Capabilities: (0x4470ce120dc0b306423f00):
				HE40/HE80/5GHz
				242 tone RUs/5GHz
				Device Class: 1
				LDPC Coding in Payload
				HE SU PPDU with 1x HE-LTF and 0.8us GI
				NDP with 4x HE-LTF and 3.2us GI
				STBC Tx <= 80MHz
				STBC Rx <= 80MHz
				Full Bandwidth UL MU-MIMO
				Partial Bandwidth UL MU-MIMO
				DCM Max Constellation: 2
				DCM Max Constellation Rx: 2
				SU Beamformee
				Beamformee STS <= 80Mhz: 3
				Ng = 16 SU Feedback
				Ng = 16 MU Feedback
				Codebook Size SU Feedback
				Codebook Size MU Feedback
				Triggered CQI Feedback
				Partial Bandwidth Extended Range
				PPE Threshold Present
				Power Boost Factor ar
				HE SU PPDU & HE PPDU 4x HE-LTF 0.8us GI
				20MHz in 40MHz HE PPDU 2.4GHz
				DCM Max BW: 1
				Longer Than 16HE SIG-B OFDM Symbols
				Non-Triggered CQI Feedback
				TX 1024-QAM
				RX 1024-QAM
				RX Full BW SU Using HE MU PPDU with Compression SIGB
				RX Full BW SU Using HE MU PPDU with Non-Compression SIGB
			HE RX MCS and NSS set <= 80 MHz
				1 streams: MCS 0-11
				2 streams: MCS 0-11
				3 streams: not supported
				4 streams: not supported
				5 streams: not supported
				6 streams: not supported
				7 streams: not supported
				8 streams: not supported
			HE TX MCS and NSS set <= 80 MHz
				1 streams: MCS 0-11
				2 streams: MCS 0-11
				3 streams: not supported
				4 streams: not supported
				5 streams: not supported
				6 streams: not supported
				7 streams: not supported
				8 streams: not supported
			PPE Threshold 0x39 0x1c 0xc7 0x71 0x1c 0x07 
		EHT Iftypes: managed
			EHT MAC Capabilities (0x0000):
			EHT PHY Capabilities: (0x0000000000000000):
			EHT MCS/NSS: (0x):
			EHT bw <= 80 MHz, max NSS for MCS 8-9: Rx=0, Tx=0
			EHT bw <= 80 MHz, max NSS for MCS 10-11: Rx=0, Tx=0
			EHT bw <= 80 MHz, max NSS for MCS 12-13: Rx=0, Tx=0
		HE Iftypes: AP
			HE MAC Capabilities (0x00011a081044):
				+HTC HE Supported
				BSR
				OM Control
				Maximum A-MPDU Length Exponent: 3
				BQR
				A-MSDU in A-MPDU
				OM Control UL MU Data Disable RX
			HE PHY Capabilities: (0x0420ce120000a000000c00):
				HE40/HE80/5GHz
				LDPC Coding in Payload
				NDP with 4x HE-LTF and 3.2us GI
				STBC Tx <= 80MHz
				STBC Rx <= 80MHz
				Full Bandwidth UL MU-MIMO
				Partial Bandwidth UL MU-MIMO
				DCM Max Constellation: 2
				DCM Max Constellation Rx: 2
				Partial Bandwidth Extended Range
				PPE Threshold Present
				TX 1024-QAM
				RX 1024-QAM
			HE RX MCS and NSS set <= 80 MHz
				1 streams: MCS 0-11
				2 streams: MCS 0-11
				3 streams: not supported
				4 streams: not supported
				5 streams: not supported
				6 streams: not supported
				7 streams: not supported
				8 streams: not supported
			HE TX MCS and NSS set <= 80 MHz
				1 streams: MCS 0-11
				2 streams: MCS 0-11
				3 streams: not supported
				4 streams: not supported
				5 streams: not supported
				6 streams: not supported
				7 streams: not supported
				8 streams: not supported
			PPE Threshold 0x39 0x1c 0xc7 0x71 0x1c 0x07 
		EHT Iftypes: AP
			EHT MAC Capabilities (0x0000):
			EHT PHY Capabilities: (0x0000000000000000):
			EHT MCS/NSS: (0x):
			EHT bw <= 80 MHz, max NSS for MCS 8-9: Rx=0, Tx=0
			EHT bw <= 80 MHz, max NSS for MCS 10-11: Rx=0, Tx=0
			EHT bw <= 80 MHz, max NSS for MCS 12-13: Rx=0, Tx=0
		Frequencies:
			* 5955 MHz [1] (23.0 dBm)
			* 5975 MHz [5] (23.0 dBm)
			* 5995 MHz [9] (23.0 dBm)
			* 6015 MHz [13] (23.0 dBm)
			* 6035 MHz [17] (23.0 dBm)
			* 6055 MHz [21] (23.0 dBm)
			* 6075 MHz [25] (23.0 dBm)
			* 6095 MHz [29] (23.0 dBm)
			* 6115 MHz [33] (23.0 dBm)
			* 6135 MHz [37] (23.0 dBm)
			* 6155 MHz [41] (23.0 dBm)
			* 6175 MHz [45] (23.0 dBm)
			* 6195 MHz [49] (23.0 dBm)
			* 6215 MHz [53] (23.0 dBm)
			* 6235 MHz [57] (23.0 dBm)
			* 6255 MHz [61] (23.0 dBm)
			* 6275 MHz [65] (23.0 dBm)
			* 6295 MHz [69] (23.0 dBm)
			* 6315 MHz [73] (23.0 dBm)
			* 6335 MHz [77] (23.0 dBm)
			* 6355 MHz [81] (23.0 dBm)
			* 6375 MHz [85] (23.0 dBm)
			* 6395 MHz [89] (23.0 dBm)
			* 6415 MHz [93] (23.0 dBm)
			* 6435 MHz [97] (disabled)
			* 6455 MHz [101] (disabled)
			* 6475 MHz [105] (disabled)
			* 6495 MHz [109] (disabled)
			* 6515 MHz [113] (disabled)
			* 6535 MHz [117] (disabled)
			* 6555 MHz [121] (disabled)
			* 6575 MHz [125] (disabled)
			* 6595 MHz [129] (disabled)
			* 6615 MHz [133] (disabled)
			* 6635 MHz [137] (disabled)
			* 6655 MHz [141] (disabled)
			* 6675 MHz [145] (disabled)
			* 6695 MHz [149] (disabled)
			* 6715 MHz [153] (disabled)
			* 6735 MHz [157] (disabled)
			* 6755 MHz [161] (disabled)
			* 6775 MHz [165] (disabled)
			* 6795 MHz [169] (disabled)
			* 6815 MHz [173] (disabled)
			* 6835 MHz [177] (disabled)
			* 6855 MHz [181] (disabled)
			* 6875 MHz [185] (disabled)
			* 6895 MHz [189] (disabled)
			* 6915 MHz [193] (disabled)
			* 6935 MHz [197] (disabled)
			* 6955 MHz [201] (disabled)
			* 6975 MHz [205] (disabled)
			* 6995 MHz [209] (disabled)
			* 7015 MHz [213] (disabled)
			* 7035 MHz [217] (disabled)
			* 7055 MHz [221] (disabled)
			* 7075 MHz [225] (disabled)
			* 7095 MHz [229] (disabled)
			* 7115 MHz [233] (disabled)
	valid interface combinations:
		 * #{ managed, P2P-client } <= 2, #{ AP, P2P-GO } <= 1,
		   total <= 2, #channels <= 2
	HT Capability overrides:
		 * MCS: ff ff ff ff ff ff ff ff ff ff
		 * maximum A-MSDU length
		 * supported channel width
		 * short GI for 40 MHz
		 * max A-MPDU length exponent
		 * min MPDU start spacing
	max # scan plans: 1
	max scan plan interval: 65535
	max scan plan iterations: 0
	Supported extended features:
		* [ RRM ]: RRM
		* [ SET_SCAN_DWELL ]: scan dwell setting
		* [ BEACON_RATE_LEGACY ]: legacy beacon rate setting
		* [ BEACON_RATE_HT ]: HT beacon rate setting
		* [ BEACON_RATE_VHT ]: VHT beacon rate setting
		* [ FILS_STA ]: STA FILS (Fast Initial Link Setup)
		* [ CQM_RSSI_LIST ]: multiple CQM_RSSI_THOLD records
		* [ CONTROL_PORT_OVER_NL80211 ]: control port over nl80211
		* [ ACK_SIGNAL_SUPPORT ]: ack signal level support
		* [ TXQS ]: FQ-CoDel-enabled intermediate TXQs
		* [ CAN_REPLACE_PTK0 ]: can safely replace PTK 0 when rekeying
		* [ AIRTIME_FAIRNESS ]: airtime fairness scheduling
		* [ AQL ]: Airtime Queue Limits (AQL)
		* [ CONTROL_PORT_NO_PREAUTH ]: disable pre-auth over nl80211 control port support
		* [ SCAN_FREQ_KHZ ]: scan on kHz frequency support
		* [ CONTROL_PORT_OVER_NL80211_TX_STATUS ]: tx status for nl80211 control port support
		* [ BEACON_RATE_HE ]: HE beacon rate support (AP/mesh)
Wiphy phy0
	wiphy index: 0
	max # scan SSIDs: 4
	max scan IEs length: 482 bytes
	max # sched scan SSIDs: 10
	max # match sets: 16
	Retry short limit: 7
	Retry long limit: 4
	Coverage class: 0 (up to 0m)
	Device supports AP-side u-APSD.
	Device supports T-DLS.
	Available Antennas: TX 0x3 RX 0x3
	Configured Antennas: TX 0x3 RX 0x3
	Supported interface modes:
		 * managed
		 * AP
		 * AP/VLAN
		 * monitor
		 * P2P-client
		 * P2P-GO
	Band 1:
		Capabilities: 0x9ff
			RX LDPC
			HT20/HT40
			SM Power Save disabled
			RX Greenfield
			RX HT20 SGI
			RX HT40 SGI
			TX STBC
			RX STBC 1-stream
			Max AMSDU length: 7935 bytes
			No DSSS/CCK HT40
		Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
		Minimum RX AMPDU time spacing: No restriction (0x00)
		HT TX/RX MCS rate indexes supported: 0-15
		HE Iftypes: managed
			HE MAC Capabilities (0x08011a000040):
				+HTC HE Supported
				Trigger Frame MAC Padding Duration: 2
				OM Control
				Maximum A-MPDU Length Exponent: 3
				A-MSDU in A-MPDU
			HE PHY Capabilities: (0x2270ce120dc0b306423f00):
				HE40/2.4GHz
				242 tone RUs/2.4GHz
				Device Class: 1
				LDPC Coding in Payload
				HE SU PPDU with 1x HE-LTF and 0.8us GI
				NDP with 4x HE-LTF and 3.2us GI
				STBC Tx <= 80MHz
				STBC Rx <= 80MHz
				Full Bandwidth UL MU-MIMO
				Partial Bandwidth UL MU-MIMO
				DCM Max Constellation: 2
				DCM Max Constellation Rx: 2
				SU Beamformee
				Beamformee STS <= 80Mhz: 3
				Ng = 16 SU Feedback
				Ng = 16 MU Feedback
				Codebook Size SU Feedback
				Codebook Size MU Feedback
				Triggered CQI Feedback
				Partial Bandwidth Extended Range
				PPE Threshold Present
				Power Boost Factor ar
				HE SU PPDU & HE PPDU 4x HE-LTF 0.8us GI
				20MHz in 40MHz HE PPDU 2.4GHz
				DCM Max BW: 1
				Longer Than 16HE SIG-B OFDM Symbols
				Non-Triggered CQI Feedback
				TX 1024-QAM
				RX 1024-QAM
				RX Full BW SU Using HE MU PPDU with Compression SIGB
				RX Full BW SU Using HE MU PPDU with Non-Compression SIGB
			HE RX MCS and NSS set <= 80 MHz
				1 streams: MCS 0-11
				2 streams: MCS 0-11
				3 streams: not supported
				4 streams: not supported
				5 streams: not supported
				6 streams: not supported
				7 streams: not supported
				8 streams: not supported
			HE TX MCS and NSS set <= 80 MHz
				1 streams: MCS 0-11
				2 streams: MCS 0-11
				3 streams: not supported
				4 streams: not supported
				5 streams: not supported
				6 streams: not supported
				7 streams: not supported
				8 streams: not supported
			PPE Threshold 0x39 0x1c 0xc7 0x71 0x1c 0x07 
		EHT Iftypes: managed
			EHT MAC Capabilities (0x0000):
			EHT PHY Capabilities: (0x0000000000000000):
			EHT MCS/NSS: (0x):
			EHT bw=20 MHz, max NSS for MCS 0-7: Rx=0, Tx=0
			EHT bw=20 MHz, max NSS for MCS 8-9: Rx=0, Tx=0
			EHT bw=20 MHz, max NSS for MCS 10-11: Rx=0, Tx=0
			EHT bw=20 MHz, max NSS for MCS 12-13: Rx=0, Tx=0
		HE Iftypes: AP
			HE MAC Capabilities (0x00011a081044):
				+HTC HE Supported
				BSR
				OM Control
				Maximum A-MPDU Length Exponent: 3
				BQR
				A-MSDU in A-MPDU
				OM Control UL MU Data Disable RX
			HE PHY Capabilities: (0x0220ce120000a000000c00):
				HE40/2.4GHz
				LDPC Coding in Payload
				NDP with 4x HE-LTF and 3.2us GI
				STBC Tx <= 80MHz
				STBC Rx <= 80MHz
				Full Bandwidth UL MU-MIMO
				Partial Bandwidth UL MU-MIMO
				DCM Max Constellation: 2
				DCM Max Constellation Rx: 2
				Partial Bandwidth Extended Range
				PPE Threshold Present
				TX 1024-QAM
				RX 1024-QAM
			HE RX MCS and NSS set <= 80 MHz
				1 streams: MCS 0-11
				2 streams: MCS 0-11
				3 streams: not supported
				4 streams: not supported
				5 streams: not supported
				6 streams: not supported
				7 streams: not supported
				8 streams: not supported
			HE TX MCS and NSS set <= 80 MHz
				1 streams: MCS 0-11
				2 streams: MCS 0-11
				3 streams: not supported
				4 streams: not supported
				5 streams: not supported
				6 streams: not supported
				7 streams: not supported
				8 streams: not supported
			PPE Threshold 0x39 0x1c 0xc7 0x71 0x1c 0x07 
		EHT Iftypes: AP
			EHT MAC Capabilities (0x0000):
			EHT PHY Capabilities: (0x0000000000000000):
			EHT MCS/NSS: (0x):
			EHT bw=20 MHz, max NSS for MCS 0-7: Rx=0, Tx=0
			EHT bw=20 MHz, max NSS for MCS 8-9: Rx=0, Tx=0
			EHT bw=20 MHz, max NSS for MCS 10-11: Rx=0, Tx=0
			EHT bw=20 MHz, max NSS for MCS 12-13: Rx=0, Tx=0
		Frequencies:
			* 2412 MHz [1] (20.0 dBm)
			* 2417 MHz [2] (20.0 dBm)
			* 2422 MHz [3] (20.0 dBm)
			* 2427 MHz [4] (20.0 dBm)
			* 2432 MHz [5] (20.0 dBm)
			* 2437 MHz [6] (20.0 dBm)
			* 2442 MHz [7] (20.0 dBm)
			* 2447 MHz [8] (20.0 dBm)
			* 2452 MHz [9] (20.0 dBm)
			* 2457 MHz [10] (20.0 dBm)
			* 2462 MHz [11] (20.0 dBm)
			* 2467 MHz [12] (20.0 dBm)
			* 2472 MHz [13] (20.0 dBm)
			* 2484 MHz [14] (disabled)
	Band 2:
		Capabilities: 0x9ff
			RX LDPC
			HT20/HT40
			SM Power Save disabled
			RX Greenfield
			RX HT20 SGI
			RX HT40 SGI
			TX STBC
			RX STBC 1-stream
			Max AMSDU length: 7935 bytes
			No DSSS/CCK HT40
		Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
		Minimum RX AMPDU time spacing: No restriction (0x00)
		HT TX/RX MCS rate indexes supported: 0-15
		VHT Capabilities (0x339071b2):
			Max MPDU length: 11454
			Supported Channel Width: neither 160 nor 80+80
			RX LDPC
			short GI (80 MHz)
			TX STBC
			SU Beamformee
			MU Beamformee
			RX antenna pattern consistency
			TX antenna pattern consistency
		VHT RX MCS set:
			1 streams: MCS 0-9
			2 streams: MCS 0-9
			3 streams: not supported
			4 streams: not supported
			5 streams: not supported
			6 streams: not supported
			7 streams: not supported
			8 streams: not supported
		VHT RX highest supported: 0 Mbps
		VHT TX MCS set:
			1 streams: MCS 0-9
			2 streams: MCS 0-9
			3 streams: not supported
			4 streams: not supported
			5 streams: not supported
			6 streams: not supported
			7 streams: not supported
			8 streams: not supported
		VHT TX highest supported: 0 Mbps
		VHT extended NSS: supported
		HE Iftypes: managed
			HE MAC Capabilities (0x08011a000040):
				+HTC HE Supported
				Trigger Frame MAC Padding Duration: 2
				OM Control
				Maximum A-MPDU Length Exponent: 3
				A-MSDU in A-MPDU
			HE PHY Capabilities: (0x4470ce120dc0b306423f00):
				HE40/HE80/5GHz
				242 tone RUs/5GHz
				Device Class: 1
				LDPC Coding in Payload
				HE SU PPDU with 1x HE-LTF and 0.8us GI
				NDP with 4x HE-LTF and 3.2us GI
				STBC Tx <= 80MHz
				STBC Rx <= 80MHz
				Full Bandwidth UL MU-MIMO
				Partial Bandwidth UL MU-MIMO
				DCM Max Constellation: 2
				DCM Max Constellation Rx: 2
				SU Beamformee
				Beamformee STS <= 80Mhz: 3
				Ng = 16 SU Feedback
				Ng = 16 MU Feedback
				Codebook Size SU Feedback
				Codebook Size MU Feedback
				Triggered CQI Feedback
				Partial Bandwidth Extended Range
				PPE Threshold Present
				Power Boost Factor ar
				HE SU PPDU & HE PPDU 4x HE-LTF 0.8us GI
				20MHz in 40MHz HE PPDU 2.4GHz
				DCM Max BW: 1
				Longer Than 16HE SIG-B OFDM Symbols
				Non-Triggered CQI Feedback
				TX 1024-QAM
				RX 1024-QAM
				RX Full BW SU Using HE MU PPDU with Compression SIGB
				RX Full BW SU Using HE MU PPDU with Non-Compression SIGB
			HE RX MCS and NSS set <= 80 MHz
				1 streams: MCS 0-11
				2 streams: MCS 0-11
				3 streams: not supported
				4 streams: not supported
				5 streams: not supported
				6 streams: not supported
				7 streams: not supported
				8 streams: not supported
			HE TX MCS and NSS set <= 80 MHz
				1 streams: MCS 0-11
				2 streams: MCS 0-11
				3 streams: not supported
				4 streams: not supported
				5 streams: not supported
				6 streams: not supported
				7 streams: not supported
				8 streams: not supported
			PPE Threshold 0x39 0x1c 0xc7 0x71 0x1c 0x07 
		EHT Iftypes: managed
			EHT MAC Capabilities (0x0000):
			EHT PHY Capabilities: (0x0000000000000000):
			EHT MCS/NSS: (0x):
			EHT bw <= 80 MHz, max NSS for MCS 8-9: Rx=0, Tx=0
			EHT bw <= 80 MHz, max NSS for MCS 10-11: Rx=0, Tx=0
			EHT bw <= 80 MHz, max NSS for MCS 12-13: Rx=0, Tx=0
		HE Iftypes: AP
			HE MAC Capabilities (0x00011a081044):
				+HTC HE Supported
				BSR
				OM Control
				Maximum A-MPDU Length Exponent: 3
				BQR
				A-MSDU in A-MPDU
				OM Control UL MU Data Disable RX
			HE PHY Capabilities: (0x0420ce120000a000000c00):
				HE40/HE80/5GHz
				LDPC Coding in Payload
				NDP with 4x HE-LTF and 3.2us GI
				STBC Tx <= 80MHz
				STBC Rx <= 80MHz
				Full Bandwidth UL MU-MIMO
				Partial Bandwidth UL MU-MIMO
				DCM Max Constellation: 2
				DCM Max Constellation Rx: 2
				Partial Bandwidth Extended Range
				PPE Threshold Present
				TX 1024-QAM
				RX 1024-QAM
			HE RX MCS and NSS set <= 80 MHz
				1 streams: MCS 0-11
				2 streams: MCS 0-11
				3 streams: not supported
				4 streams: not supported
				5 streams: not supported
				6 streams: not supported
				7 streams: not supported
				8 streams: not supported
			HE TX MCS and NSS set <= 80 MHz
				1 streams: MCS 0-11
				2 streams: MCS 0-11
				3 streams: not supported
				4 streams: not supported
				5 streams: not supported
				6 streams: not supported
				7 streams: not supported
				8 streams: not supported
			PPE Threshold 0x39 0x1c 0xc7 0x71 0x1c 0x07 
		EHT Iftypes: AP
			EHT MAC Capabilities (0x0000):
			EHT PHY Capabilities: (0x0000000000000000):
			EHT MCS/NSS: (0x):
			EHT bw <= 80 MHz, max NSS for MCS 8-9: Rx=0, Tx=0
			EHT bw <= 80 MHz, max NSS for MCS 10-11: Rx=0, Tx=0
			EHT bw <= 80 MHz, max NSS for MCS 12-13: Rx=0, Tx=0
		Frequencies:
			* 5180 MHz [36] (23.0 dBm)
			* 5200 MHz [40] (23.0 dBm)
			* 5220 MHz [44] (23.0 dBm)
			* 5240 MHz [48] (23.0 dBm)
			* 5260 MHz [52] (20.0 dBm) (radar detection)
			* 5280 MHz [56] (20.0 dBm) (radar detection)
			* 5300 MHz [60] (20.0 dBm) (radar detection)
			* 5320 MHz [64] (20.0 dBm) (radar detection)
			* 5500 MHz [100] (26.0 dBm) (radar detection)
			* 5520 MHz [104] (26.0 dBm) (radar detection)
			* 5540 MHz [108] (26.0 dBm) (radar detection)
			* 5560 MHz [112] (26.0 dBm) (radar detection)
			* 5580 MHz [116] (26.0 dBm) (radar detection)
			* 5600 MHz [120] (26.0 dBm) (radar detection)
			* 5620 MHz [124] (26.0 dBm) (radar detection)
			* 5640 MHz [128] (26.0 dBm) (radar detection)
			* 5660 MHz [132] (26.0 dBm) (radar detection)
			* 5680 MHz [136] (26.0 dBm) (radar detection)
			* 5700 MHz [140] (26.0 dBm) (radar detection)
			* 5720 MHz [144] (13.0 dBm) (radar detection)
			* 5745 MHz [149] (13.0 dBm)
			* 5765 MHz [153] (13.0 dBm)
			* 5785 MHz [157] (13.0 dBm)
			* 5805 MHz [161] (13.0 dBm)
			* 5825 MHz [165] (13.0 dBm)
			* 5845 MHz [169] (13.0 dBm)
			* 5865 MHz [173] (13.0 dBm)
			* 5885 MHz [177] (disabled)
	valid interface combinations:
		 * #{ managed, P2P-client } <= 2, #{ AP, P2P-GO } <= 1,
		   total <= 2, #channels <= 2
	HT Capability overrides:
		 * MCS: ff ff ff ff ff ff ff ff ff ff
		 * maximum A-MSDU length
		 * supported channel width
		 * short GI for 40 MHz
		 * max A-MPDU length exponent
		 * min MPDU start spacing
	max # scan plans: 1
	max scan plan interval: 65535
	max scan plan iterations: 0
	Supported extended features:
		* [ RRM ]: RRM
		* [ SET_SCAN_DWELL ]: scan dwell setting
		* [ BEACON_RATE_LEGACY ]: legacy beacon rate setting
		* [ BEACON_RATE_HT ]: HT beacon rate setting
		* [ BEACON_RATE_VHT ]: VHT beacon rate setting
		* [ FILS_STA ]: STA FILS (Fast Initial Link Setup)
		* [ CQM_RSSI_LIST ]: multiple CQM_RSSI_THOLD records
		* [ CONTROL_PORT_OVER_NL80211 ]: control port over nl80211
		* [ ACK_SIGNAL_SUPPORT ]: ack signal level support
		* [ TXQS ]: FQ-CoDel-enabled intermediate TXQs
		* [ CAN_REPLACE_PTK0 ]: can safely replace PTK 0 when rekeying
		* [ AIRTIME_FAIRNESS ]: airtime fairness scheduling
		* [ AQL ]: Airtime Queue Limits (AQL)
		* [ CONTROL_PORT_NO_PREAUTH ]: disable pre-auth over nl80211 control port support
		* [ SCAN_FREQ_KHZ ]: scan on kHz frequency support
		* [ CONTROL_PORT_OVER_NL80211_TX_STATUS ]: tx status for nl80211 control port support
		* [ BEACON_RATE_HE ]: HE beacon rate support (AP/mesh)
10

iwinfo gives me:

phy1-ap0  ESSID: "OpenWrt"
          Access Point: 94:83:C4:36:85:E9
          Mode: Master  Channel: 87 (6.385 GHz)  HT Mode: NOHT
          Center Channel 1: unknown 2: unknown
          Tx-Power: 23 dBm  Link Quality: unknown/70
          Signal: unknown  Noise: -92 dBm
          Bit Rate: unknown
          Encryption: none
          Type: nl80211  HW Mode(s): 802.11ac/ax/n
          Hardware: embedded [MediaTek MT7981]
          TX power offset: none
          Frequency offset: none
          Supports VAPs: yes  PHY name: phy1

But iw phy phy1 info gives:

		Frequencies:
			* 5180 MHz [36] (23.0 dBm)
			* 5200 MHz [40] (23.0 dBm)
			* 5220 MHz [44] (23.0 dBm)
			* 5240 MHz [48] (23.0 dBm)
			* 5260 MHz [52] (20.0 dBm) (radar detection)
			* 5280 MHz [56] (20.0 dBm) (radar detection)
			* 5300 MHz [60] (20.0 dBm) (radar detection)
			* 5320 MHz [64] (20.0 dBm) (radar detection)
			* 5500 MHz [100] (24.0 dBm) (radar detection)
			* 5520 MHz [104] (24.0 dBm) (radar detection)
			* 5540 MHz [108] (24.0 dBm) (radar detection)
			* 5560 MHz [112] (24.0 dBm) (radar detection)
			* 5580 MHz [116] (24.0 dBm) (radar detection)
			* 5600 MHz [120] (24.0 dBm) (radar detection)
			* 5620 MHz [124] (24.0 dBm) (radar detection)
			* 5640 MHz [128] (24.0 dBm) (radar detection)
			* 5660 MHz [132] (24.0 dBm) (radar detection)
			* 5680 MHz [136] (24.0 dBm) (radar detection)
			* 5700 MHz [140] (24.0 dBm) (radar detection)
			* 5720 MHz [144] (24.0 dBm) (radar detection)
			* 5745 MHz [149] (23.0 dBm)
			* 5765 MHz [153] (23.0 dBm)
			* 5785 MHz [157] (23.0 dBm)
			* 5805 MHz [161] (23.0 dBm)
			* 5825 MHz [165] (23.0 dBm)
			* 5845 MHz [169] (disabled)
			* 5865 MHz [173] (disabled)
			* 5885 MHz [177] (disabled)

So which one is correct?

11

Good question…
…in general I'd be inclined to believe iw (at least if you check all reported bands).

It never hurts to cross-check externally, scanning from a wifi6e capable client.

12

Maybe, but it is not possible to create an ax (HE) interface using iw, so something is wrong/missing .....

13

If only I had one :wink:

14

Intel AX210, BE200 or Mediatek mt7921k (AMD RZ608), mt7922 (AMD RZ616) M.2 wlan cards are relatively cheap[0], adapters for desktop PCIe (or mini-PCIe) exist; for USB mt7921au is another option. Neither of these are great for AP mode, but they are decent clients (Intel BE200 is rather temperamental, and obviously no Intel card supports AP mode on 5- or 6 GHz).

--
[0] with antennas and desktop PCIe riser, you're looking at 18-25 EUR delivered, just the naked M.2 card is around half of that.

15

I'll try scanning from a second mt3000....