Return-path: Received: from smtp-out05.msg.oleane.net ([62.161.7.3]:41146 "EHLO smtp-out05.msg.oleane.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751123AbbCML5O convert rfc822-to-8bit (ORCPT ); Fri, 13 Mar 2015 07:57:14 -0400 Received: from smtp05.msg.oleane.net (smtp05.mail.priv [172.17.20.114]) by smtp-out05.msg.oleane.net with ESMTP id t2DBvC3g032172 for ; Fri, 13 Mar 2015 12:57:12 +0100 Received: from acksys.fr ([195.6.104.67]) (authenticated) by smtp05.msg.oleane.net (MTA) with ESMTP id t2DBXiDZ016430 for ; Fri, 13 Mar 2015 12:33:45 +0100 Subject: ARP dropped during WPA handshake Date: Fri, 13 Mar 2015 12:36:42 +0100 Message-ID: <773DB8A82AB6A046AE0195C68612A319019FECAF@sbs2003.acksys.local> (sfid-20150313_125719_609678_A0E41E7C) MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" From: "Cedric VONCKEN" To: Sender: linux-wireless-owner@vger.kernel.org List-ID: My test plateforme is very simple, One sta (with openwrt), one AP and a computer connected to the AP. I launch iperf on the sta and power up the AP. With wireshark I can observe 1 s delay between the frame EAPOL 4/4 and the arp request sent by the sta. I can observe the delay only if my sta uses architecture with more 1 cpu. When the sta received the Authentication response, mac80211 sets the iface on UP state. This state allows wpa_supplicant to send the EAPOL frame for WPA handshake but other frames are dropped. If an arp request is sent by the local ip stack during the WPA handshake this arp will be dropped and we need to wait the end of arp timeout (1 s). Have you any suggestion / pointer to fix this issue? Thanks for your help. Cedric Voncken