Join Log in
Score:0
tim11g avatar Ubuntu

Wi-Fi Regulatory changes between Ubuntu 20.10 and 21.04 prevent airmon-ng from operating in 6 GHz band?

gn flag
tim11g

I have a Ubuntu 20.10 system that supports airmon-ng for packet capture with Wireshark in the 6 GHz band:

++ sudo airmon-ng start wlp2s0 6335

PHY Interface Driver Chipset

phy0 wlp2s0 iwlwifi Intel Corporation Device 2725 (rev 1a)
(mac80211 monitor mode vif enabled for [phy0]wlp2s0 on [phy0]wlp2s0mon)
(mac80211 station mode vif disabled for [phy0]wlp2s0)

++ iwconfig
wlp2s0mon  IEEE 802.11  Mode:Monitor  Frequency:6.335 GHz  Tx-Power=-2147483648 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:on

I have an identical notebook with 21.04 that will connect as a client, and operate on 6 GHz channels by running wpa_supplicant from the terminal. sudo wpa_supplicant -i wlp2s0 -c /home/me/wpa_sae_config.conf -ddsBtK -g /tmp/wpa_global -G me

However it will not load airmon-ng:

$ sudo airmon-ng start wlp2s0 6335
phy0 wlp2s0 iwlwifi Intel Corporation Device 2725 (rev 1a)

Error setting channel: kernel reports: Channel is disabled
command failed: Invalid argument (-22)
Unable to set channel/frequency 6335, most likely it is outside of regulatory domain

Both systems /etc/default/crda file had the line REGDOMAIN= I changed the 21.04 system to REGDOMAIN=US but it made no difference in airmon-ng ability to use 6 GHz. Both systems have the Intel AX-210 and have identical drivers as reported by sudo lshw -C network:

configuration: broadcast=yes driver=iwlwifi driverversion=5.11.0-051100-generic firmware=59.601f3a66.0 ty-a0-gf-a0-59.uc

Are there parallel systems for regulatory domains and airmon-ng is using a different system than wpa_supplicant? Where does the underlying data reported by iw reg get come from?

Ubuntu 21.04 - airmon-ng does not support 6 GHz:

me@Latitude-7480:~$ iw reg get
global
country US: DFS-FCC
(2400 - 2472 @ 40), (N/A, 30), (N/A)
(5150 - 5250 @ 80), (N/A, 23), (N/A), AUTO-BW
(5250 - 5350 @ 80), (N/A, 23), (0 ms), DFS, AUTO-BW
(5470 - 5730 @ 160), (N/A, 23), (0 ms), DFS
(5730 - 5850 @ 80), (N/A, 30), (N/A), AUTO-BW
(5850 - 5895 @ 40), (N/A, 27), (N/A), NO-OUTDOOR, AUTO-BW, PASSIVE-SCAN
(57240 - 71000 @ 2160), (N/A, 40), (N/A)
me@Latitude-7480:~$

Ubuntu 20.10 - airmon-ng works in 6 GHz:

me@Latitude-7480:~$ iw reg get
global
country 00: DFS-UNSET
(2402 - 2472 @ 40), (N/A, 20), (N/A)
(2457 - 2482 @ 20), (N/A, 20), (N/A), AUTO-BW, PASSIVE-SCAN
(2474 - 2494 @ 20), (N/A, 20), (N/A), NO-OFDM, PASSIVE-SCAN
(5170 - 5250 @ 80), (N/A, 20), (N/A), AUTO-BW, PASSIVE-SCAN
(5250 - 5330 @ 80), (N/A, 20), (0 ms), DFS, AUTO-BW, PASSIVE-SCAN
(5490 - 5730 @ 160), (N/A, 20), (0 ms), DFS, PASSIVE-SCAN
(5735 - 5835 @ 80), (N/A, 20), (N/A), PASSIVE-SCAN
(57240 - 63720 @ 2160), (N/A, 0), (N/A)
phy#0 (self-managed)
country US: DFS-UNSET
(2402 - 2437 @ 40), (6, 22), (N/A), AUTO-BW, NO-HT40MINUS, NO-80MHZ, NO-160MHZ
(2422 - 2462 @ 40), (6, 22), (N/A), AUTO-BW, NO-80MHZ, NO-160MHZ
(2447 - 2482 @ 40), (6, 22), (N/A), AUTO-BW, NO-HT40PLUS, NO-80MHZ, NO-160MHZ
(5170 - 5190 @ 160), (6, 22), (N/A), AUTO-BW, NO-HT40MINUS
(5190 - 5210 @ 160), (6, 22), (N/A), AUTO-BW, NO-HT40PLUS
(5210 - 5230 @ 160), (6, 22), (N/A), AUTO-BW, NO-HT40MINUS
(5230 - 5250 @ 160), (6, 22), (N/A), AUTO-BW, NO-HT40PLUS
(5250 - 5270 @ 160), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40MINUS, PASSIVE-SCAN
(5270 - 5290 @ 160), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS, PASSIVE-SCAN
(5290 - 5310 @ 160), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40MINUS, PASSIVE-SCAN
(5310 - 5330 @ 160), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS, PASSIVE-SCAN
(5490 - 5510 @ 240), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40MINUS, PASSIVE-SCAN
(5510 - 5530 @ 240), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS, PASSIVE-SCAN
(5530 - 5550 @ 240), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40MINUS, PASSIVE-SCAN
(5550 - 5570 @ 240), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS, PASSIVE-SCAN
(5570 - 5590 @ 240), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40MINUS, PASSIVE-SCAN
(5590 - 5610 @ 240), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS, PASSIVE-SCAN
(5610 - 5630 @ 240), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40MINUS, PASSIVE-SCAN
(5630 - 5650 @ 240), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS, PASSIVE-SCAN
(5650 - 5670 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40MINUS, NO-160MHZ, PASSIVE-SCAN
(5670 - 5690 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS, NO-160MHZ, PASSIVE-SCAN
(5690 - 5710 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40MINUS, NO-160MHZ, PASSIVE-SCAN
(5710 - 5730 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS, NO-160MHZ, PASSIVE-SCAN
(5735 - 5755 @ 80), (6, 22), (N/A), AUTO-BW, NO-HT40MINUS, NO-160MHZ
(5755 - 5775 @ 80), (6, 22), (N/A), AUTO-BW, NO-HT40PLUS, NO-160MHZ
(5775 - 5795 @ 80), (6, 22), (N/A), AUTO-BW, NO-HT40MINUS, NO-160MHZ
(5795 - 5815 @ 80), (6, 22), (N/A), AUTO-BW, NO-HT40PLUS, NO-160MHZ
(5815 - 5835 @ 40), (6, 22), (N/A), AUTO-BW, NO-HT40MINUS, NO-80MHZ, NO-160MHZ
(5945 - 5965 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, PASSIVE-SCAN
(5965 - 5985 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, PASSIVE-SCAN
(5985 - 6005 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, PASSIVE-SCAN
(6005 - 6025 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, PASSIVE-SCAN
(6025 - 6045 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, PASSIVE-SCAN
(6045 - 6065 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, PASSIVE-SCAN
(6065 - 6085 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, PASSIVE-SCAN
(6085 - 6105 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, PASSIVE-SCAN
(6105 - 6125 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, PASSIVE-SCAN
(6125 - 6145 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, PASSIVE-SCAN
(6145 - 6165 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, PASSIVE-SCAN
(6165 - 6185 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, PASSIVE-SCAN
(6185 - 6205 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, PASSIVE-SCAN
(6205 - 6225 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, PASSIVE-SCAN
(6225 - 6245 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, PASSIVE-SCAN
(6245 - 6265 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, PASSIVE-SCAN
(6265 - 6285 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, PASSIVE-SCAN
(6285 - 6305 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, PASSIVE-SCAN
(6305 - 6325 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, PASSIVE-SCAN
(6325 - 6345 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, PASSIVE-SCAN
(6345 - 6365 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, PASSIVE-SCAN
(6365 - 6385 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, PASSIVE-SCAN
(6385 - 6405 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, PASSIVE-SCAN
(6405 - 6425 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, PASSIVE-SCAN
(6425 - 6445 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, PASSIVE-SCAN
(6445 - 6465 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, PASSIVE-SCAN
(6465 - 6485 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, PASSIVE-SCAN
(6485 - 6505 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, PASSIVE-SCAN
(6505 - 6525 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, PASSIVE-SCAN
(6525 - 6545 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, PASSIVE-SCAN
(6545 - 6565 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, PASSIVE-SCAN
(6565 - 6585 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, PASSIVE-SCAN
(6585 - 6605 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, PASSIVE-SCAN
(6605 - 6625 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, PASSIVE-SCAN
(6625 - 6645 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, PASSIVE-SCAN
(6645 - 6665 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, PASSIVE-SCAN
(6665 - 6685 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, PASSIVE-SCAN
(6685 - 6705 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, PASSIVE-SCAN
(6705 - 6725 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, PASSIVE-SCAN
(6725 - 6745 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, PASSIVE-SCAN
(6745 - 6765 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, PASSIVE-SCAN
(6765 - 6785 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, PASSIVE-SCAN
(6785 - 6805 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, PASSIVE-SCAN
(6805 - 6825 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, PASSIVE-SCAN
(6825 - 6845 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, PASSIVE-SCAN
(6845 - 6865 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, PASSIVE-SCAN
(6865 - 6885 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, PASSIVE-SCAN
(6885 - 6905 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, PASSIVE-SCAN
(6905 - 6925 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, PASSIVE-SCAN
(6925 - 6945 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, PASSIVE-SCAN
(6945 - 6965 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, PASSIVE-SCAN
(6965 - 6985 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, PASSIVE-SCAN
(6985 - 7005 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, PASSIVE-SCAN
(7005 - 7025 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, PASSIVE-SCAN
(7025 - 7045 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, PASSIVE-SCAN
(7045 - 7065 @ 1180), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, PASSIVE-SCAN
(7065 - 7085 @ 40), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, NO-80MHZ, NO-160MHZ, PASSIVE-SCAN
(7085 - 7105 @ 40), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, NO-80MHZ, NO-160MHZ, PASSIVE-SCAN
(7105 - 7125 @ 20), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, NO-HT40PLUS, NO-80MHZ, NO-160MHZ, PASSIVE-SCAN
me@Latitude-7480:~$
272
0 + 0
guiverc avatar
cn flag
guiverc
I know nothing about it so this could be wrong, but I'd assume the differences lie in the kernel being used (*kernel modules are of course related to kernel itself*); ie. 5.8 for 20.10 and 5.11 for 21.04. I suspect the answer is thus an older kernel; I'd for example try Ubuntu 20.04 LTS with the GA kernel (ie. 5.4; the HWE 5.8 kernel of 20.04.2 will upgrade to 5.11 first update) and consider the LTS if you need that function, it'll have older code too - https://changelogs.ubuntu.com/changelogs/pool/universe/a/aircrack-ng/aircrack-ng_1.6+git20210130.91820bc-1/changelog if that's the issue)
0
Reply
David avatar
cn flag
David
Please supply some info on the 6 frequency. I can only find info on 5 and 2.4
0
Reply
tim11g avatar
gn flag
tim11g
@David - search on "Wi-Fi 6E". In particular, the Intel AX-210 module supports it. It requires the latest Wi-Fi features such as WPA3, PMF, and OWE. I have been able to get it to work on 21.04 by disabling Network Manager, but now I find airmon-ng doesn't work. airmon-ng works on 20.10, but it won't support network connectivity. Search for my (mostly unanswered) posts on this forum for more information.
0
Reply
tim11g avatar
gn flag
tim11g
@guiverc - The issue is Wi-Fi functionality in terms of regulatory domain support for a new band. Maybe the kernel has regressed in 21.04, but hopefully there is interest in getting it fixed. For example, if 5 GHz Wi-Fi stopped working in a Ubuntu release, the solution would not be to use an older kernel. Since 21.04 can associate and connect in 6 GHz when configured manually, there seems to be an issue in the regulatory domain information reported - I'm looking for guidance on finding the root cause, whether it is the driver, the kernel, or something else.
0
Reply
ธงชาติไทย
Elon Musk
I sit in a Tesla and translated this thread with Ai:

mangohost

Post an answer

Most people don’t grasp that asking a lot of questions unlocks learning and improves interpersonal bonding. In Alison’s studies, for example, though people could accurately recall how many questions had been asked in their conversations, they didn’t intuit the link between questions and liking. Across four studies, in which participants were engaged in conversations themselves or read transcripts of others’ conversations, people tended not to realize that question asking would influence—or had influenced—the level of amity between the conversationalists.