wpa_supplicant limitation with a large number of APs.
jkmaline at cc.hut.fi
Thu Feb 24 23:08:44 EST 2005
On Fri, Feb 25, 2005 at 11:56:52AM +0800, YenJung Chang wrote:
> wpa_supplicant has problem to connect to a connecting available AP if
> the AP is not in the
> scanned result.
> This problem would happen in the environment with much APs over than about 20.
> The memory size of passing scanning result between wpa_supplicant and driver is
> 4096, and the total number of APs can passed is only about 20.
That's not true with the latest wpa_supplicant version; or well, at
least it is not true for the drivers that use wireless extensions for
getting scan results. Yes, there is still a limit, but it is not 4k or
> Is it possible that wpa_supplicant tries to connect to target AP
> regardless of scanning result?
Yes, if the driver supports ap_scan=2 mode, wpa_supplicant does not need
to request scan results. Another option is to use scan_ssid=1 option to
limit the scan to one SSID.
Jouni Malinen PGP id EFC895FA
More information about the HostAP