Member Avatar for newbie1234

I am complete new in linux.
And i want to know that how to make AD-HOC network using WPA_supplicant?

Any help

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Dani AI

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Short answer: wpa_supplicant can create IBSS (ad-hoc) networks, but practical success depends on the wpa_supplicant release you run and the Linux wireless stack/driver support on your machine. was right to ask about versions: IBSS behavior (open vs. WPA in IBSS) and ap_scan semantics are documented in the wpa_supplicant sources. (w1.fi)

Basic checks before trying anything:

wpa_supplicant -v
iw list | grep -i -E 'ibss|rsn|Device supports RSN-IBSS'

Look for "Supported interface modes: ibss" and "Device supports RSN-IBSS" (if present, the driver may support WPA in IBSS). If those are missing you can still do an open ad-hoc but not IBSS with WPA keys. Use iw list / iw phy to inspect capabilities. (wireless.docs.kernel.org)

Manual workflow (reliable for debugging):

sudo systemctl stop NetworkManager
sudo ip link set wlan0 down
sudo wpa_supplicant -i wlan0 -Dnl80211 -c /path/to/adhoc.conf -dd
sudo ip addr add 192.168.10.1/24 dev wlan0
sudo ip link set wlan0 up

Use the nl80211 driver backend where possible; ap_scan semantics matter (ap_scan=1 is the normal nl80211-friendly mode). Run wpa_supplicant with -dd for logs to see why association/creation fails. (man.he.net)

Troubleshooting notes: try creating/joining an IBSS with iw dev wlan0 ibss join <SSID> <freq> to confirm kernel-level support, check dmesg for driver errors, and verify NetworkManager or other daemons are not interfering. If the distro ships an old wpa_supplicant or drivers, updating (or building a recent wpa_supplicant) is often the fastest fix. Also note that WPA-NONE is deprecated in favor of RSN/PSK when the driver advertises RSN-IBSS support. (wireless.docs.kernel.org)

(Refer to 's posted config and try the checks above; if iw list shows no IBSS/RSN support, start with an open ad-hoc first and then pursue driver/kernel/wpa_supplicant updates.)

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Member Avatar for rubberman

What distribution+version of linux, and which version of wpa_supplicant are you using? FWIW, this is a pretty new enhancement, so you may need to get current sources and build it from scratch.

Member Avatar for newbie1234

nt, so you may need to get current sources and build it from scratch.
i installed using synaptic. and am using ultimate edition 2.3

Member Avatar for newbie1234 
ap_scan=2
network={
    ssid="gui"
    key_mgmt=NONE
    mode=1
}

to connect with not protected Ad-hoc network.

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