Query on channel configuration

Jouni Malinen j
Mon Mar 5 10:01:21 PST 2012

On Mon, Mar 05, 2012 at 10:12:20PM +0530, uday kiran wrote:
> I am using the following conf file for running hostapd. I am using
> mac80211_hwsim as driver.

> hw_mode=a
> channel=36
> And getting the following error. Is it something related to regulatory
> domain ?

Most likely.

> wlan0: IEEE 802.11 Configured channel (36) not found from the channel list
> of current mode (2) IEEE 802.11a
> wlan0: IEEE 802.11 Hardware does not support configured channel

Please check what "iw list" shows in the 5 GHz band frequencies. hostapd
won't allow the channel to be used if it requires passive scanning on
radar detection. You could try changing the regulatory domain with "iw
reg set US" for mac80211_hwsim testing purposes.

Jouni Malinen                                            PGP id EFC895FA

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