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Ci-dessous, les différences entre deux révisions de la page.

--- tech:802.11_notes_wifi [2025/03/24 15:06] – créée - modification externe 127.0.0.1
+++ tech:802.11_notes_wifi [2026/06/07 19:12] (Version actuelle) – modification externe 127.0.0.1
@@ Ligne 1: / Ligne 1: @@
+<!DOCTYPE markdown>
+{{tag>Brouillon Réseau module}}
+# 802.11 notes Wifi
+Voir aussi :
+* mdk3
+Connexion à un réseau wifi
+~~~bash
+iwconfig wlan0 essid Livebox-ABCD key 0123456789ABCD
+~~~
+~~~bash
+cat > /etc/apt/sources.list <<EOF
+deb http://ftp.debian.org/debian jessie-backports main contrib non-free
+EOF
+apt-get update
+apt-get install iw wireless-tools rfkill
+#apt-get install firmware-ralink
+apt-get install firmware-misc-nonfree
+apt-get install firmware-atheros
+rfkill list all
+/etc/init.d/network-manager stop
+ifconfig wlan0 up
+iwlist wlan0 scan
+iwconfig wlan0 essid FreeWifi
+dhclient -r wlan0
+dhclient wlan0
+nmcli r wifi on
+w3m https://wifi.free.fr
+~~~
+Diag
+~~~bash
+ifconfig
+iw event -t -f
+~~~
+Option module
+Source :
+* https://askubuntu.com/questions/440256/how-do-i-create-a-system-file-etc-modprobe-d-ath9k-conf
+* https://doc.ubuntu-fr.org/wifi_atheros_ar9285
+~~~bash
+cat /sys/module/ath9k/parameters/nohwcrypt
+sudo modprobe -r ath9k
+sudo modprobe ath9k nohwcrypt=1
+~~~
+`/etc/modprobe.d/ath9k.conf`
+~~~
+options ath9k nohwcrypt=1
+~~~
+wicd pour remplacer le NetWork Manager
+~~~bash
+sudo apt-get update && sudo apt-get install wicd
+sudo systemctl restart wicd
+wicd-client
+~~~
+## WPA
+Voir :
+* https://community.spiceworks.com/topic/2072178-wpa2-krack-attack-reviewing-the-basics?source=topic&pos=29
+## Diag
+~~~bash
+rfkill list
+#rfkill unblock 1
+rfkill unblock all
+iwlist scan
+~~~
+## Pb
+### Pb drivers - rtw_timed out to flush pci tx ring
+Voir :
+* https://linuxfr.org/forums/linux-embarque/posts/probleme-pour-charger-le-firmware-realtek-rtw88
+~~~bash
+dmesg -T
+~~~
+~~~
+[Fri Feb  9 16:16:23 2024] rtw_8821ce 0000:01:00.0: timed out to flush pci tx ring[1]
+[Fri Feb  9 16:16:23 2024] rtw_8821ce 0000:01:00.0: timed out to flush pci tx ring[3]
+[Fri Feb  9 16:16:23 2024] rtw_8821ce 0000:01:00.0: timed out to flush pci tx ring[5]
+[Fri Feb  9 16:16:24 2024] rtw_8821ce 0000:01:00.0: timed out to flush pci tx ring[1]
+[Fri Feb  9 16:16:24 2024] rtw_8821ce 0000:01:00.0: timed out to flush pci tx ring[3]
+[Fri Feb  9 16:16:24 2024] rtw_8821ce 0000:01:00.0: timed out to flush pci tx ring[5]
+...
+[Fri Feb  9 16:26:39 2024] wlp1s0: authentication with a4:ce:da:1e:07:97 timed out
+[Fri Feb  9 16:26:40 2024] wlp1s0: authenticate with a4:ce:da:1e:07:92
+[Fri Feb  9 16:26:40 2024] wlp1s0: send auth to a4:ce:da:1e:07:92 (try 1/3)
+[Fri Feb  9 16:26:41 2024] wlp1s0: send auth to a4:ce:da:1e:07:92 (try 2/3)
+[Fri Feb  9 16:26:42 2024] wlp1s0: send auth to a4:ce:da:1e:07:92 (try 3/3)
+[Fri Feb  9 16:26:43 2024] wlp1s0: authentication with a4:ce:da:1e:07:92 timed out
+~~~
+Solution provisoire
+~~~bash
+modprobe -r rtw88_8821ce
+modprobe rtw88_8821ce
+~~~
+A tester pour diag
+~~~bash
+rfkill list all
+~~~
+### Pb drivers
+~~~
+# dmesg
+...
+[   11.869171] iwlwifi 0000:00:14.3: firmware didn't ACK the reset - continue anyway
+[   11.869317] iwlwifi 0000:00:14.3: Start IWL Error Log Dump:
+[   11.869369] iwlwifi 0000:00:14.3: Transport status: 0x0000004A, valid: 6
+[   11.869411] iwlwifi 0000:00:14.3: Loaded firmware version: 72.daa05125.0 so-a0-jf-b0-72.ucode
+[   11.869452] iwlwifi 0000:00:14.3: 0x00000084 | NMI_INTERRUPT_UNKNOWN
+[   11.869488] iwlwifi 0000:00:14.3: 0x000082F0 | trm_hw_status0
+[   11.869517] iwlwifi 0000:00:14.3: 0x00000000 | trm_hw_status1
+[   11.869545] iwlwifi 0000:00:14.3: 0x004D2466 | branchlink2
+[   11.869576] iwlwifi 0000:00:14.3: 0x004C9122 | interruptlink1
+[   11.869603] iwlwifi 0000:00:14.3: 0x004C9122 | interruptlink2
+[   11.869632] iwlwifi 0000:00:14.3: 0x0000FF88 | data1
+...
+~~~
+Contournement provisoire
+~~~bash
+lsmod | grep 802
+modprobe -r iwlmvm
+modprobe -r libarc4
+modprobe -r mac80211
+modprobe mac80211
+modprobe libarc4
+modprobe iwlmvm
+~~~