--- wext.c.orig	2008-07-21 22:18:29.000000000 +0200
+++ wext.c	2008-09-14 16:46:09.000000000 +0200
@@ -929,6 +929,14 @@
 	else
 		idx--;
 
+	if (sdata->vif.type == IEEE80211_IF_TYPE_STA) {
+		struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+		if (erq->flags & IW_ENCODE_OPEN)
+			ifsta->auth_alg = WLAN_AUTH_OPEN;
+		else if (erq->flags & IW_ENCODE_RESTRICTED)
+			ifsta->auth_alg = WLAN_AUTH_SHARED_KEY;
+	}
+
 	if (erq->flags & IW_ENCODE_DISABLED)
 		remove = 1;
 	else if (erq->length == 0) {