hostapd issues and questions

Jouni Malinen jkmaline
Mon Jan 20 21:17:08 PST 2003

On Sun, Jan 19, 2003 at 12:09:35PM -0500, Sergio M. Ammirata wrote:

> 1) Changing the mac address of the wlan0 interface using ifconfig breaks
> routing (you can link but the tcp/ip layer does not work).
> This happens only with hostapd enabled.

Was hostapd running when you changed MAC address? You must restart
hostapd after this change.

> 2) Without hostapd there is wlan0 and wlan0wdsx. Now we have wlan0ap and
> wlan0sta as well.
> How are we supposed to setup Ethernet bridging now? Do we include all
> three in the bridge (wlan0, wlan0ap and wlan0sta)?

wlan0ap should not be included in bridge setup at all. It used only for
management frames (802.11 auth/assoc, 802.1X EAPOL frames) within that
one AP. wlan0sta is an experimental device used for station mode
operations with another AP if assoc_ap_addr is set. It does not support
layer-2 bridging (just like any other "normal" station mode card), so
it should not be included in bridge setup.

> 3) Has the functionality of wlan0wdsx changed? When and why would I use
> wlan0sta?

No, wlan0wds# work as before. You could potentially use wlan0sta as a
wireless uplink with IP routing (and possible Proxy ARPing).

> 4) With hostapd active iwspy no longer reports any info on wds
> neighbors. How can I found out the strength of the links?

That is not implemented yet.

Jouni Malinen                                            PGP id EFC895FA

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