(RL 8.4, KDE 5.18) (EDIT: and later on a RL 8.5, KDE 5.23 VM)
I’m trying to figure out why the wifi network appears twice here:
[root@localhost sysctl.d]# nmcli dev wifi list --rescan yes
IN-USE BSSID SSID MODE CHAN RATE SIGNAL BARS SECURITY
* 14:49:BC:09:F7:68 BPWLAN2 Infra 6 130 Mbit/s 100 ▂▄▆█ WPA2
* 14:49:BC:09:F7:68 BPWLAN2 Infra 6 130 Mbit/s 87 ▂▄▆█ WPA2
(that’s the first time I’ve seen anything different on those 2 lines - signal strength)
… I suspect once for ipv4 and once for ipv6 but cannot find any doc to say yay,nay or otherwise and cannot get rid of ipv6 on wifi to test/verify.
Getting to the above…
with ipv6 off at router…
sysctl -w net.ipv6.conf.all.disable_ipv6=1
sysctl -w net.ipv6.conf.default.disable_ipv6=1
systemctl restart NetworkManager
nmcli r wifi off
ip a
… no inet6 addresses
[root@localhost sysctl.d]# nmcli r wifi on
[root@localhost sysctl.d]# nmcli con up 'bpwl2' --ask
Passwords or encryption keys are required to access the wireless network 'BPWLAN2'.
Password (802-11-wireless-security.psk): •••••••••
Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/6)
[root@localhost sysctl.d]# nmcli dev wifi list --rescan yes bssid 14:49:BC:09:F7:68
IN-USE BSSID SSID MODE CHAN RATE SIGNAL BARS SECURITY
14:49:BC:09:F7:68 BPWLAN2 Infra 6 130 Mbit/s 87 ▂▄▆█ WPA2
(note IN-USE never populated and only 1 line returned when bssid specified)
[root@localhost sysctl.d]# nmcli con show
NAME UUID TYPE DEVICE
enp0s25 cd6fbc03-55f5-40e9-a609-5d7714057311 ethernet enp0s25
bpwl2 304dde7f-7f1f-4bb7-9aea-eda98b3eb2dc wifi wlp0s20u3
PCIe-eth 81a3aa9e-515d-37b1-ad43-e0b6bc0719af ethernet --
[root@localhost sysctl.d]# nmcli dev wifi list --rescan yes
IN-USE BSSID SSID MODE CHAN RATE SIGNAL BARS SECURITY
* 14:49:BC:09:F7:68 BPWLAN2 Infra 6 130 Mbit/s 100 ▂▄▆█ WPA2
* 14:49:BC:09:F7:68 BPWLAN2 Infra 6 130 Mbit/s 87 ▂▄▆█ WPA2
[root@localhost sysctl.d]# nmcli dev wifi list --rescan yes bssid 14:49:BC:09:F7:68
IN-USE BSSID SSID MODE CHAN RATE SIGNAL BARS SECURITY
14:49:BC:09:F7:68 BPWLAN2 Infra 6 130 Mbit/s 100 ▂▄▆█ WPA2
[root@localhost sysctl.d]# ip add show dev wlp0s20u3
23: wlp0s20u3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether 00:19:86:11:87:a5 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.14/24 brd 192.168.1.255 scope global dynamic noprefixroute wlp0s20u3
valid_lft 86301sec preferred_lft 86301sec
inet6 fe80::1a0b:571c:f40a:bc7a/64 scope link noprefixroute
valid_lft forever preferred_lft forever
[root@localhost sysctl.d]# nmcli --fields ACTIVE,NAME,SSID,DBUS-PATH dev wifi list
ACTIVE NAME SSID DBUS-PATH
yes AP[1] BPWLAN2 /org/freedesktop/NetworkManager/AccessPoint/47
yes AP[2] BPWLAN2 /org/freedesktop/NetworkManager/AccessPoint/60
Device: (lsusb output)
Bus 003 Device 028: ID 0bda:818b Realtek Semiconductor Corp. RTL8192EU 802.11b/g/n WLAN Adapter
So 2 questions:
- Why are there 2 APs for BPWLAN2 ?
- Why is inet6 still populating for wlp0s20u3 ?