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RAHUL DHOLE

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Proxmox WiFi Connection Story

#proxmox #wifi #network #80211ac

I bought usb wifi adapter Realtek Semiconductor Corp. USB3.0 802.11ac 1200M Adapter
but I didn't know how to connect it on Proxmox.

Via bypass to VM

Bypass USB 

lsusb | grep Realtek # Bus 001 Device 003: ID 0bda:b812 Realtek Semiconductor Corp. RTL88x2bu [AC1200 Techkey] qm set [REPLACE_VMID] -usb0 host=[REPLACE_ID] qm set 998 -usb0 host=0bda:b812 # Restart VM
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Bypass in LXC

Via official docs (Worked but not so well tried installing many drivers don't remember all) (Note: restart server multiple times don't worry)
Articles:

Add wpa_supplicant 

# Command to generate passphrase psk su -l -c "wpa_passphrase Livebox-6130_5GHz real_password > /etc/wpa_supplicant.conf"
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# nano /etc/wpa_supplicant/wpa_supplicant-wlx90de806f0ac9.conf trl_interface=/run/wpa_supplicant network={ ssid="Livebox-6130_5GHz" #psk="real_password" psk=578647825626be5ee793b531dfd9dd525530cc2ce8fa8e06096e8d67bff0a3ca }
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# ip link up sudo ip link set wlx90de806f0ac9 up ip link # connect wifi sudo wpa_supplicant -B -i wlx90de806f0ac9 -c /etc/wpa_supplicant/wpa_supplicant-wlx90de806f0ac9.conf # get IP dhclient wlx90de806f0ac9 # or reload it by > dhclient wlx90de806f0ac9 -r
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# wlx90de806f0ac9 is wifi adapter interface name `iwconfig` # nano /etc/network/interfaces auto wlx90de806f0ac9 iface wlx90de806f0ac9 inet dhcp wpa-driver wext wpa-conf /etc/wpa_supplicant/wpa_supplicant-wlx90de806f0ac9.conf wireless-rate 54M ## Apply (WORKED) # before make sure it can connect via `sudo wpa_supplicant -B -i wlx90de806f0ac9 -c /etc/wpa_supplicant/wpa_supplicant-wlx90de806f0ac9.conf` sudo pkill -f "wpa_supplicant|dhclient|iwp|iwe|iwconfig|ifconfig|iwlist" sudo systemctl restart networking
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Trying to create a bridge other ways (worked but still need somem tests) 
# /etc/network/interfaces allow-hotplug wlx90de806f0ac9 iface wlx90de806f0ac9 inet dhcp wpa-driver wext wpa-conf /etc/wpa_supplicant/wpa_supplicant-wlx90de806f0ac9.conf wireless-rate 54M auto vmbr2 iface vmbr2 inet static address 192.168.200.1/24 #gateway 192.168.1.1 bridge-ports none bridge-stp off bridge-fd 0 post-up echo 1 > /proc/sys/net/ipv4/ip_forward post-up iptables -t nat -A POSTROUTING -s '192.168.200.0/24' -o wlx90de806f0ac9 -j MASQUERADE post-down iptables -t nat -D POSTROUTING -s '192.168.200.0/24' -o wlx90de806f0ac9 -j MASQUERADE post-up iptables -t raw -I PREROUTING -i fwbr+ -j CT --zone 1 post-down iptables -t raw -D PREROUTING -i fwbr+ -j CT --zone 1
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Bypass is a simple solution but what if I want it on the proxmox itself?

Via Network Manager (Works Well Tested) 

lsusb # 0bda:b812 Realtek Semiconductor Corp. RTL88x2bu [AC1200 Techkey] apt update apt install wireless-tools # I installed it for iwconfig specially iwconfig apt upgrade apt install pve-headers-$(uname -r) apt install pve-firmware reboot iwconfig
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To connect a wifi (https://www.makeuseof.com/connect-to-wifi-with-nmcli/) 

apt install network-manager nmcli device wifi list # dev or device both are same nmcli dev status # similar to iwconfig to find wifi interface name like wlx90de806f0ac9 nmcli connection up "SSID Name in double quotes" password "password double quotes" nmcli --ask dev wifi connect "Livebox-6130_5GHz" # ask nmcli connection up "Livebox-6130_5GHz" password "Helloworld" nmcli radio wifi # check status nmcli radio wifi on nmcli radio wifi off
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See IP info 

nano /etc/NetworkManager/system-connections/Livebox_5GHz.nmconnection
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Failures

  1. adding wifi into /etc/network/interfaces does not work

Troublshoot

  1. Always make sure ip link is UP

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