2012-01-30 10:29:11

by Lars Duesing

[permalink] [raw]
Subject: Virtual Interfaces; using hostapd AND wpa_supplicant on the same physical device

Hi List,

I'd like to create a temporary hotspot using an other wireless network
which is already there.
My kids have some devices (like Nintendo DS) which are only capable
using WEP.
So I want to create a temporary hotspot which I can filter on my own.

Years ago I was able to do such a configuration, but this was before
mac80211 (I was then often on trade fairs, with very costly
wlan-tariffs...).

Problem is: I get an error about a network name already exist - either
on hostapd and wpa_supplicant - everytime the last program started.

> iw phy phy0 interface add net0 type managed
> hostapd -dd hostapd.conf
> wpa_supplicant -dd -Dwext -inet0 -cwpa_supplicant.conf

hostapd.conf:
> interface=wlan0
> driver=nl80211
> bridge=br0
> ssid=TEST
> wme_enabled=0
> channel=9
> hw_mode=g

wpa_supplicant.conf
> ctrl_interface=DIR=/var/run/wpa_supplicant
> network={
> ssid="CRYPT_WLAN"
> scan_ssid=1
> key_mgmt=WPA-PSK
> psk="PSKpskPSK"
> }

lsmod|grep 80211
> mac80211 393459 1 ath5k
> cfg80211 172427 3 ath5k,ath,mac80211


lspci -v
> 0a:03.0 Ethernet controller: Atheros Communications Inc. AR2413
802.11bg NIC (rev 01)
> Subsystem: AMBIT Microsystem Corp. Device 0418
> Flags: bus master, medium devsel, latency 168, IRQ 18
> Memory at d0000000 (32-bit, non-prefetchable) [size=64K]
> Capabilities: [44] Power Management version 2
> Kernel driver in use: ath5k
> Kernel modules: ath5k

/proc/version:
> Linux version 3.0.0-15-generic (buildd@zirconium) (gcc version 4.6.1
(Ubuntu/Linaro 4.6.1-9ubuntu3) ) #26-Ubuntu SMP Fri Jan 20 15:59:53 UTC 2012



2012-02-01 03:19:18

by Pat Erley

[permalink] [raw]
Subject: Re: Virtual Interfaces; using hostapd AND wpa_supplicant on the same physical device

On 01/30/2012 05:29 AM, Lars Duesing wrote:
> Hi List,
>
> I'd like to create a temporary hotspot using an other wireless network which is already there.
> My kids have some devices (like Nintendo DS) which are only capable using WEP.
> So I want to create a temporary hotspot which I can filter on my own.
>
> Years ago I was able to do such a configuration, but this was before mac80211 (I was then often on trade fairs, with very costly wlan-tariffs...).
>
> Problem is: I get an error about a network name already exist - either on hostapd and wpa_supplicant - everytime the last program started.
>

You need to change the mac address of the second device once you create it.

Pat Erley