From owner-freebsd-net@FreeBSD.ORG Thu Jan 28 03:30:30 2010 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 6B88E1065698 for ; Thu, 28 Jan 2010 03:30:30 +0000 (UTC) (envelope-from realliukai@gmail.com) Received: from mail-iw0-f199.google.com (mail-iw0-f199.google.com [209.85.223.199]) by mx1.freebsd.org (Postfix) with ESMTP id 1EE478FC22 for ; Thu, 28 Jan 2010 03:30:29 +0000 (UTC) Received: by iwn37 with SMTP id 37so308678iwn.30 for ; Wed, 27 Jan 2010 19:30:29 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:date:message-id:subject :from:to:content-type; bh=QHJnvFFHwb8O4b3McucyeTHnbaNBGVfUX6yIzDmNMs8=; b=YtNxtQpDFbmzVETt1HbAkwYMjs5w6m0dAtRv58/jdqblffNgV7NQKI+4wCuPjiN2km JsjhDsahSheFwJaK1tsuKPjfUskNnCTI6mhK7DoBzIlos36a2VIC50AUiGxWy6MKKuvE RT23nVhDX+byfUnlIhK0l91ldy1q3nHX7Yl6Q= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; b=E0ggTp9P30zbb9pkS6kunzJmTCr4KiA42AuNfYiv7dObcsdNd231lEi4pETsBglO4J kS/nNgQre3ckW5U4NFfD8FMN4IZSwL75Gq+21NHXxa36DFZmh5uCIFga9BbULmZAemCM Hn65WPPs4h6WfoecNkCG1siDW3ej0vt7mq3Xo= MIME-Version: 1.0 Received: by 10.231.154.197 with SMTP id p5mr3050092ibw.28.1264649429143; Wed, 27 Jan 2010 19:30:29 -0800 (PST) Date: Thu, 28 Jan 2010 11:30:29 +0800 Message-ID: <7237120a1001271930g711eb3a3i7ca334c387c2f93f@mail.gmail.com> From: =?GB2312?B?wfW/rQ==?= To: freebsd-net@freebsd.org X-Mailman-Approved-At: Thu, 28 Jan 2010 04:15:01 +0000 Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Subject: capturing wireless packets of multicast X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 28 Jan 2010 03:30:30 -0000 hello all: recently I have a problem about capturing wireless packets of multicast. There is the network architecture. Frist, there is a swith which don't support multicast, and then a PC(PC1) and a AP connect the switch. the PC is multicasting. There is another PC(PC2) with wirelss network card to capture wireless packets of multicast via 802.11g. The question came out.I have two wireless network card. One is inter 4965AG, another is atheros AR2425. If PC2 use the intet 4965AG, it can capture the wireless multicast packets, but if it use the atheros one, it can't. So I wonder why the atheros can't. the difference of two wireless card? the network architecture? the switch? Thanks kevin