wpa_supplicant v0.6.3 loses connection, then reconnects to a different AP

Jouni Malinen j
Mon Jun 2 02:33:19 PDT 2008

On Sun, Jun 01, 2008 at 03:01:06PM -0700, David Ehrmann wrote:
> What do these info messages mean?
> "RSN: PMKID candidate event - bssid=xx:xx:xx:04:85:aa index=0 preauth=0"

This means that the driver reported that there is a neighboring AP for
the same SSID.

> "RSN: Ignored PMKID candidate without preauth flag"
> (yes, the previous message indicates that preauth is 0, but why is the 
> message ignored)

WPA2 (IEEE 802.11i) has an option for completing most time consuming
part of authentication prior to connecting to a new network. This is
called preauthentication and supplicant can trigger it based on the
PMKID candidate (i.e., candidate for deriving and caching keys) events.
Since this particular AP does not advertise support for
preauthentication, this event is ignored.

Jouni Malinen                                            PGP id EFC895FA

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