Wifi country code

Installing and Using OpenWrt
1

Hi forum

I am running two different devices (AP and wireless bridge) with OpenWrt 23.05 and was out of interest looking into the country code definition.
I was checking the regulatory domain in both devices with iw reg get and was surprised that one device actually mentions US, although I have set both radios to CH. The sencond devide only mentioned CH (as I was expecting).

I am not sure if this is correct or not but since I do not have an explanation I thought someone else might help me out and enlighten me :-).

Here is the output of the first device (wireless AP):

root@OpenWrt:~# iw reg get
global
country CH: 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 - 5725 @ 160), (N/A, 26), (0 ms), DFS
	(5725 - 5875 @ 80), (N/A, 13), (N/A)
	(5945 - 6425 @ 160), (N/A, 23), (N/A), NO-OUTDOOR
	(57000 - 71000 @ 2160), (N/A, 40), (N/A)

phy#1
country US: DFS-FCC
	(902 - 904 @ 2), (N/A, 30), (N/A)
	(904 - 920 @ 16), (N/A, 30), (N/A)
	(920 - 928 @ 8), (N/A, 30), (N/A)
	(2400 - 2472 @ 40), (N/A, 30), (N/A)
	(5150 - 5250 @ 80), (N/A, 23), (N/A), AUTO-BW
	(5250 - 5350 @ 80), (N/A, 24), (0 ms), DFS, AUTO-BW
	(5470 - 5730 @ 160), (N/A, 24), (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
	(5925 - 7125 @ 320), (N/A, 12), (N/A), NO-OUTDOOR, PASSIVE-SCAN
	(57240 - 71000 @ 2160), (N/A, 40), (N/A)

phy#0
country US: DFS-FCC
	(902 - 904 @ 2), (N/A, 30), (N/A)
	(904 - 920 @ 16), (N/A, 30), (N/A)
	(920 - 928 @ 8), (N/A, 30), (N/A)
	(2400 - 2472 @ 40), (N/A, 30), (N/A)
	(5150 - 5250 @ 80), (N/A, 23), (N/A), AUTO-BW
	(5250 - 5350 @ 80), (N/A, 24), (0 ms), DFS, AUTO-BW
	(5470 - 5730 @ 160), (N/A, 24), (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
	(5925 - 7125 @ 320), (N/A, 12), (N/A), NO-OUTDOOR, PASSIVE-SCAN
	(57240 - 71000 @ 2160), (N/A, 40), (N/A)

In case needed here is also the wireless config:

root@OpenWrt:~# cat /etc/config/wireless

config wifi-device 'radio0'
	option type 'mac80211'
	option path 'platform/soc/a000000.wifi'
	option channel '1'
	option band '2g'
	option htmode 'HT20'
	option cell_density '0'
	option txpower '20'
	option country 'CH'

config wifi-device 'radio1'
	option type 'mac80211'
	option path 'platform/soc/a800000.wifi'
	option channel '36'
	option band '5g'
	option htmode 'VHT80'
	option cell_density '0'
	option txpower '20'
	option country 'CH'

config wifi-iface 'wifinet0'
	option device 'radio0'
	option mode 'ap'
	option ssid '***'
	option encryption 'psk2'
	option key '***'
	option network 'lan'

config wifi-iface 'wifinet1'
	option device 'radio1'
	option mode 'ap'
	option ssid '***'
	option encryption 'psk2'
	option key '***'
	option network 'lan'
	option wds '1'

config wifi-iface 'wifinet2'
	option device 'radio1'
	option mode 'ap'
	option ssid '***'
	option encryption 'psk2'
	option key '***'
	option network 'admin'

config wifi-iface 'wifinet3'
	option device 'radio1'
	option mode 'ap'
	option ssid '***'
	option encryption 'psk2'
	option key '***'
	option network 'vlan10'
	option disabled '1'

config wifi-iface 'wifinet4'
	option device 'radio0'
	option mode 'ap'
	option ssid '***'
	option encryption 'psk2'
	option key '***'
	option network 'vlan10'

Here is the second device (wireless bridge):

root@OpenWrt:~# iw reg get
global
country CH: 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 - 5725 @ 160), (N/A, 26), (0 ms), DFS
	(5725 - 5875 @ 80), (N/A, 13), (N/A)
	(5945 - 6425 @ 160), (N/A, 23), (N/A), NO-OUTDOOR
	(57000 - 71000 @ 2160), (N/A, 40), (N/A)

And here the wireless config:

root@OpenWrt:~# cat /etc/config/wireless

config wifi-device 'radio0'
	option type 'mac80211'
	option path '1e140000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0'
	option channel '1'
	option band '2g'
	option htmode 'HT20'
	option cell_density '0'
	option country 'CH'

config wifi-device 'radio1'
	option type 'mac80211'
	option path '1e140000.pcie/pci0000:00/0000:00:01.0/0000:02:00.0'
	option channel '36'
	option band '5g'
	option htmode 'VHT80'
	option cell_density '0'
	option country 'CH'

config wifi-iface 'wifinet0'
	option device 'radio1'
	option mode 'ap'
	option ssid '***'
	option encryption 'psk2'
	option network 'admin'
	option key '***'

config wifi-iface 'wifinet1'
	option device 'radio0'
	option mode 'ap'
	option network 'lan'
	option ssid '***'
	option encryption 'psk2'
	option key '***'

config wifi-iface 'wifinet2'
	option device 'radio1'
	option mode 'sta'
	option ssid '***'
	option encryption 'psk2'
	option key '***'
	option network 'lan'
	option wds '1'
2

23.05 is said to now have a shared Wifi process for all radios, while older versions were said to have one process per each radio. Maybe this is somehow related.

There are similar posts recently, but I have not yet seen an explanation, e.g. WiFi country issue (OpenWRT 23.05)

2 Likes
3

Thanks for the link to the other topic @Pico . I missed it, looks like the same thing.