Testing networking (WiFi, ETH) Pi 4B
Testing the network interfaces on a Pi 4B running Debian Bookworm with available kernel packages. Following installation the `raspi-firmware1 package was held due to performance probnlems with the upgrade. All testing was performed with the firmware that came with the install media.
Initial tests were hampered by two issues.
- I had mistyped the WiFi password causing connection attempts to fail.
- Ethernet was unmanaged and remained configured even when physically disconnected. This masked WiFi even though WiFi appeared to be associated (wlan0 had an IP address handed out by the local DHCP server.)
I got the Ethernet under NetworkManager control and retyped the password and achieved some success with WiFi. Ethernet seemed to work without difficulty with all kernels.
Status
I'm not happy with results, will retest when I have a chance (not till the weekend.)
5.15.0-2-arm64
This is the kernel that comes with the install media (20220121_raspi_4_bookworm.img.xz).
Linux up 5.15.0-2-arm64 #1 SMP Debian 5.15.5-2 (2021-12-18) aarch64 GNU/Linux
No WiFi. dmesg capture at https://paste.debian.net/1236231/ No wlan0 in ip addr output.
Ethernet seems to work OK.
5.16.0-5-arm64
This is the kernel available in the repo to upgrade following installation.
Linux up 5.16.0-5-arm64 #1 SMP Debian 5.16.14-1 (2022-03-15) aarch64 GNU/Linux
WiFi works w/out difficulty on both 5G and 2.4G APs. Switching repeatedly between the two SSIDs takes less than ten seconds.
5.17.0-rc8-arm64
Available from experimental
Linux up 5.17.0-rc8-arm64 #1 SMP Debian 5.17~rc8-1~exp1 (2022-03-14) aarch64 GNU/Linux
WiFi works on 5G, does not associate on 2.4G. Captured output to daemon.log when trying to switch from an associated 5G AP to a 2.4G AP up until NM re-requested the WiFi password. https://paste.debian.net/1236229/
Connect times to the 5G AP was quick at times and not quick other times. At one point it was necessary to turn WiFi off and on again to get it to associate. (Both 5G and 2.4G radios are on the same WiFi AP.)
Did not shutdown cleanly. Had to pull power.
5.17.0-trunk-arm64
From experimental
Linux up 5.17.0-trunk-arm64 #1 SMP Debian 5.17.1-1~exp1 (2022-03-29) aarch64 GNU/Linux
Tested a second time and system hung. Hadn't remoted in - working from desktop. Happened once before and was unable to restart GDM and shutdown hung too. Was able to examine logs and dmesg output and saw nothing unusual but may not have been looking in the right place. Had to remove power both times.
Both 5G and 2.4G WiFi seem to be working well. Switching back and forth between them seems timely.
2022-04-03 repeating testing
Setup: Recent install of bookworm install media.
xzcat 20220121_raspi_4_bookworm.img.xz> /dev/sdf
Install raspi-firmware from unstable (direct download) and network-manager and full upgrade of all bookworm packages.
apt upgrade -y
wget http://ftp.us.debian.org/debian/pool/non-free/r/raspi-firmware/raspi-firmware_1.20220328+ds-1_arm64.deb
apt install ./raspi-firmware_1.20220328+ds-1_arm64.deb
apt install network-manager
Instructions for testing/managing WiFi using CLI
HankB_, yes, from the command line, first, turn the wifi device on "nmcli radio wifi on" then list the wifi connections "nmcli dev wifi list", then sudo nmcli dev wifi connect network-ssid password "network-password"
Test with 5.17.0-trunk-arm64 (ssh in via Ethernet)
root@charm:~# nmcli radio wifi on
root@charm:~# nmcli dev wifi list
IN-USE BSSID SSID MODE CHAN RATE SIGNAL BARS SECURITY
70:4F:57:11:58:63 Nacho24 Infra 6 130 Mbit/s 100 **** WPA2
10:C3:7B:55:05:E8 Giant Voice System Infra 10 195 Mbit/s 97 **** WPA2
10:C3:7B:55:05:E9 NRO-33 Infra 10 195 Mbit/s 97 **** WPA2
70:4F:57:11:58:62 Nacho5G Infra 149 270 Mbit/s 77 *** WPA2
10:C3:7B:55:05:EC Fanghorn Forest Infra 157 405 Mbit/s 77 *** WPA2
root@charm:~# nmcli dev wifi connect "Fanghorn Forest" password "elided"
Device 'wlan0' successfully activated with 'elided'.
root@charm:~# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether dc:a6:32:bf:65:b5 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.103/24 brd 192.168.1.255 scope global dynamic eth0
valid_lft 5209sec preferred_lft 5209sec
inet6 2601:249:1680:36f0:dea6:32ff:febf:65b5/64 scope global dynamic mngtmpaddr
valid_lft 86390sec preferred_lft 14390sec
inet6 fe80::dea6:32ff:febf:65b5/64 scope link
valid_lft forever preferred_lft forever
3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether dc:a6:32:bf:65:b6 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.164/24 brd 192.168.1.255 scope global dynamic noprefixroute wlan0
valid_lft 7194sec preferred_lft 7194sec
inet6 2601:249:1680:36f0::1a72/128 scope global dynamic noprefixroute
valid_lft 7197sec preferred_lft 4497sec
inet6 2601:249:1680:36f0:dd52:e503:3685:cb27/64 scope global dynamic noprefixroute
valid_lft 86397sec preferred_lft 14397sec
inet6 fe80::add9:ac99:37f5:fddb/64 scope link noprefixroute
valid_lft forever preferred_lft forever
root@charm:~#
root@charm:~#
root@charm:~#
root@charm:~# ifdown eth0
Killed old client process
Internet Systems Consortium DHCP Client 4.4.2-P1
Copyright 2004-2021 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/
Listening on LPF/eth0/dc:a6:32:bf:65:b5
Sending on LPF/eth0/dc:a6:32:bf:65:b5
Sending on Socket/fallback
DHCPRELEASE of 192.168.1.103 on eth0 to 192.168.1.1 port 67
(This session was over Ethernet and resulted in a hung session following ifdown eth0 but I felt that was the easiest way to confirm that traffic was actually going over WiFi.)
Reconnnect
Linux charm 5.17.0-trunk-arm64 #1 SMP Debian 5.17.1-1~exp1 (2022-03-29) aarch64 GNU/Linux
Kernels available
root@charm:~# ls -l /boot/vmlinuz*
-rw-r--r-- 1 root root 28614528 Dec 18 23:20 /boot/vmlinuz-5.15.0-2-arm64
-rw-r--r-- 1 root root 29998976 Mar 15 06:54 /boot/vmlinuz-5.16.0-5-arm64
-rw-r--r-- 1 root root 30003072 Mar 29 07:16 /boot/vmlinuz-5.17.0-trunk-arm64
root@charm:~#
Test with 5.15.0-2-arm64 (ssh in via Ethernet)
root@charm:~# uname -a
Linux charm 5.15.0-2-arm64 #1 SMP Debian 5.15.5-2 (2021-12-18) aarch64 GNU/Linux
root@charm:~# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether dc:a6:32:bf:65:b5 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.103/24 brd 192.168.1.255 scope global dynamic eth0
valid_lft 7136sec preferred_lft 7136sec
inet6 2601:249:1680:36f0:dea6:32ff:febf:65b5/64 scope global dynamic mngtmpaddr
valid_lft 86394sec preferred_lft 14394sec
inet6 fe80::dea6:32ff:febf:65b5/64 scope link
valid_lft forever preferred_lft forever
root@charm:~# nmcli radio wifi on
root@charm:~# nmcli dev wifi list
root@charm:~# nmcli dev wifi connect "Fanghorn Forest" password "elided"
Error: No Wi-Fi device found.
root@charm:~# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether dc:a6:32:bf:65:b5 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.103/24 brd 192.168.1.255 scope global dynamic eth0
valid_lft 7098sec preferred_lft 7098sec
inet6 2601:249:1680:36f0:dea6:32ff:febf:65b5/64 scope global dynamic mngtmpaddr
valid_lft 86397sec preferred_lft 14397sec
inet6 fe80::dea6:32ff:febf:65b5/64 scope link
valid_lft forever preferred_lft forever
root@charm:~#
dmesg paste at https://paste.debian.net/1236660/
test with 5.16.0-5-arm64 starting with SSH over Ethernet
root@charm:~# uname -a
Linux charm 5.16.0-5-arm64 #1 SMP Debian 5.16.14-1 (2022-03-15) aarch64 GNU/Linux
root@charm:~# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether dc:a6:32:bf:65:b5 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.103/24 brd 192.168.1.255 scope global dynamic eth0
valid_lft 7155sec preferred_lft 7155sec
inet6 2601:249:1680:36f0:dea6:32ff:febf:65b5/64 scope global dynamic mngtmpaddr
valid_lft 86389sec preferred_lft 14389sec
inet6 fe80::dea6:32ff:febf:65b5/64 scope link
valid_lft forever preferred_lft forever
3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether dc:a6:32:bf:65:b6 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.164/24 brd 192.168.1.255 scope global dynamic noprefixroute wlan0
valid_lft 5692sec preferred_lft 5692sec
inet6 2601:249:1680:36f0::1a72/128 scope global dynamic noprefixroute
valid_lft 5696sec preferred_lft 2996sec
inet6 2601:249:1680:36f0:dd52:e503:3685:cb27/64 scope global dynamic noprefixroute
valid_lft 86390sec preferred_lft 14390sec
inet6 fe80::add9:ac99:37f5:fddb/64 scope link noprefixroute
valid_lft forever preferred_lft forever
root@charm:~# ifdown eth0
Killed old client process
Internet Systems Consortium DHCP Client 4.4.2-P1
Copyright 2004-2021 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/
Listening on LPF/eth0/dc:a6:32:bf:65:b5
Sending on LPF/eth0/dc:a6:32:bf:65:b5
Sending on Socket/fallback
DHCPRELEASE of 192.168.1.103 on eth0 to 192.168.1.1 port 67
Start second session over WiFi
hbarta@charm:~$ ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST> mtu 1500 qdisc mq state DOWN group default qlen 1000
link/ether dc:a6:32:bf:65:b5 brd ff:ff:ff:ff:ff:ff
3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether dc:a6:32:bf:65:b6 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.164/24 brd 192.168.1.255 scope global dynamic noprefixroute wlan0
valid_lft 5595sec preferred_lft 5595sec
inet6 2601:249:1680:36f0::1a72/128 scope global dynamic noprefixroute
valid_lft 5599sec preferred_lft 2899sec
inet6 2601:249:1680:36f0:dd52:e503:3685:cb27/64 scope global dynamic noprefixroute
valid_lft 86399sec preferred_lft 14399sec
inet6 fe80::add9:ac99:37f5:fddb/64 scope link noprefixroute
valid_lft forever preferred_lft forever
hbarta@charm:~$
Confirmation that WiFi is working on both 5G ("Fanghorn Forest") and 2.4G (Giant Voice System) via WiFi ssh session.
hbarta@charm:~$ nmcli dev wifi list
IN-USE BSSID SSID MODE CHAN RATE SIGNAL BARS SECURITY
70:4F:57:11:58:63 Nacho24 Infra 6 130 Mbit/s 100 **** WPA2
10:C3:7B:55:05:E9 NRO-33 Infra 10 195 Mbit/s 100 **** WPA2
70:4F:57:11:58:62 Nacho5G Infra 149 270 Mbit/s 84 **** WPA2
* 10:C3:7B:55:05:E8 Giant Voice System Infra 10 195 Mbit/s 80 *** WPA2
10:C3:7B:55:05:EC Fanghorn Forest Infra 157 405 Mbit/s 75 *** WPA2
hbarta@charm:~$ su -
root@charm:~# nmcli dev wifi connect "Fanghorn Forest"
Device 'wlan0' successfully activated with '369ee301-096a-420b-99a9-68def48160f9'.
root@charm:~# nmcli dev wifi list
IN-USE BSSID SSID MODE CHAN RATE SIGNAL BARS SECURITY
70:4F:57:11:58:63 Nacho24 Infra 6 130 Mbit/s 100 **** WPA2
10:C3:7B:55:05:E9 NRO-33 Infra 10 195 Mbit/s 100 **** WPA2
10:C3:7B:55:05:E8 Giant Voice System Infra 10 195 Mbit/s 94 **** WPA2
70:4F:57:11:58:62 Nacho5G Infra 149 270 Mbit/s 79 *** WPA2
* 10:C3:7B:55:05:EC Fanghorn Forest Infra 157 405 Mbit/s 66 *** WPA2
root@charm:~# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST> mtu 1500 qdisc mq state DOWN group default qlen 1000
link/ether dc:a6:32:bf:65:b5 brd ff:ff:ff:ff:ff:ff
3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether dc:a6:32:bf:65:b6 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.164/24 brd 192.168.1.255 scope global dynamic noprefixroute wlan0
valid_lft 6825sec preferred_lft 6825sec
inet6 2601:249:1680:36f0::1a72/128 scope global dynamic noprefixroute
valid_lft 6827sec preferred_lft 4127sec
inet6 2601:249:1680:36f0:dd52:e503:3685:cb27/64 scope global dynamic noprefixroute
valid_lft 86401sec preferred_lft 14401sec
inet6 fe80::add9:ac99:37f5:fddb/64 scope link noprefixroute
valid_lft forever preferred_lft forever
root@charm:~# uname -a
Linux charm 5.17.0-trunk-arm64 #1 SMP Debian 5.17.1-1~exp1 (2022-03-29) aarch64 GNU/Linux
root@charm:~#