I have OpenWrt running on a Pi 4.
So far, while testing, I just have it running as another device connected to my LAN.
I am simply trying to ssh in to OpenWrt over Wifi.
I can ssh to it just fine over ethernet.
When I start with a fresh /etc/config/wireless...
wifi config
This is what I get...
config wifi-device 'radio0'
option type 'mac80211'
option channel '36'
option hwmode '11a'
option path 'platform/soc/fe300000.mmcnr/mmc_host/mmc1/mmc1:0001/mmc1:0001:1'
option htmode 'VHT80'
option disabled '1'
config wifi-iface 'default_radio0'
option device 'radio0'
option network 'lan'
option mode 'ap'
option ssid 'OpenWrt'
option encryption 'none'
This is the 5GHz radio on the Pi 4... but it also has a 2.4GHz radio, why is that not also in the /etc/config/wireless? I'm confused about this part but my laptop that I want to ssh in from only supports 802.11n Wifi over 2.4GHz radio. My home router does understand 2.4 and 5GHz.
If I make some changes to that file... comment out "option disabled" and add in my county code and the encryption type and key then do this:
> wifi reload
The output of wifi status
: shows that 5GHz radio is "Up" : true.
Now the wlan0 interface shows up in ifconfig however with no ip address.
Also,that 5GHz wireless network doesn't show up in my home routers admin page.
When I booted up the Pi with this firmware for the first time I DID have both radios in /etc/config/wireless ... there were two config wifi-iface and two config wifi-device sections each with a different option path xxx
This is the output of iw list
root@OpenWrt:~# iw list
Wiphy phy0
wiphy index: 0
max # scan SSIDs: 10
max scan IEs length: 2048 bytes
max # sched scan SSIDs: 16
max # match sets: 16
max # scan plans: 1
max scan plan interval: 508
max scan plan iterations: 0
Retry short limit: 7
Retry long limit: 4
Coverage class: 0 (up to 0m)
Available Antennas: TX 0 RX 0
Supported interface modes:
* IBSS
* managed
* AP
* P2P-client
* P2P-GO
* P2P-device
Band 1:
Capabilities: 0x1022
HT20/HT40
Static SM Power Save
RX HT20 SGI
No RX STBC
Max AMSDU length: 3839 bytes
DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: 16 usec (0x07)
HT TX/RX MCS rate indexes supported: 0-7
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: 0x1062
HT20/HT40
Static SM Power Save
RX HT20 SGI
RX HT40 SGI
No RX STBC
Max AMSDU length: 3839 bytes
DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: 16 usec (0x07)
HT TX/RX MCS rate indexes supported: 0-7
VHT Capabilities (0x00001020):
Max MPDU length: 3895
Supported Channel Width: neither 160 nor 80+80
short GI (80 MHz)
SU Beamformee
VHT RX MCS set:
1 streams: MCS 0-9
2 streams: not supported
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: not supported
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
Frequencies:
* 5170 MHz [34] (disabled)
* 5180 MHz [36] (20.0 dBm)
* 5190 MHz [38] (disabled)
* 5200 MHz [40] (20.0 dBm)
* 5210 MHz [42] (disabled)
* 5220 MHz [44] (20.0 dBm)
* 5230 MHz [46] (disabled)
* 5240 MHz [48] (20.0 dBm)
* 5260 MHz [52] (20.0 dBm) (no IR, radar detection)
* 5280 MHz [56] (20.0 dBm) (no IR, radar detection)
* 5300 MHz [60] (20.0 dBm) (no IR, radar detection)
* 5320 MHz [64] (20.0 dBm) (no IR, radar detection)
* 5500 MHz [100] (20.0 dBm) (no IR, radar detection)
* 5520 MHz [104] (20.0 dBm) (no IR, radar detection)
* 5540 MHz [108] (20.0 dBm) (no IR, radar detection)
* 5560 MHz [112] (20.0 dBm) (no IR, radar detection)
* 5580 MHz [116] (20.0 dBm) (no IR, radar detection)
* 5600 MHz [120] (20.0 dBm) (no IR, radar detection)
* 5620 MHz [124] (20.0 dBm) (no IR, radar detection)
* 5640 MHz [128] (20.0 dBm) (no IR, radar detection)
* 5660 MHz [132] (20.0 dBm) (no IR, radar detection)
* 5680 MHz [136] (20.0 dBm) (no IR, radar detection)
* 5700 MHz [140] (20.0 dBm) (no IR, radar detection)
* 5720 MHz [144] (disabled)
* 5745 MHz [149] (disabled)
* 5765 MHz [153] (disabled)
* 5785 MHz [157] (disabled)
* 5805 MHz [161] (disabled)
* 5825 MHz [165] (disabled)
valid interface combinations:
* #{ managed } <= 1, #{ P2P-device } <= 1, #{ P2P-client, P2P-GO } <= 1,
total <= 3, #channels <= 2
* #{ managed } <= 1, #{ AP } <= 1, #{ P2P-client } <= 1, #{ P2P-device } <= 1,
total <= 4, #channels <= 1
Supported extended features:
* [ 4WAY_HANDSHAKE_STA_PSK ]: 4-way handshake with PSK in station mode
* [ 4WAY_HANDSHAKE_STA_1X ]: 4-way handshake with 802.1X in station mode
* [ DFS_OFFLOAD ]: DFS offload
* [ SAE_OFFLOAD ]: SAE offload support
root@OpenWrt:~#
So this does see both 2.4 and 5GHz radios.
Here is my /etc/config/network:
config interface 'wan'
option ifname 'eth1'
option proto 'dhcp'
config interface 'lan'
option ifname 'eth0'
option type 'bridge'
option proto 'dhcp'
config interface 'loopback'
option ifname 'lo'
option proto 'static'
option ipaddr '127.0.0.1'
option netmask '255.0.0.0'
So I guess I have two questions:
- Why does
wifi config
create an /etc/config/wireless file with only the 5GHz radio? - How do I set this up so I can ssh to the OpenWrt over Wifi connection?
Thank you,
Flex