From owner-freebsd-net Sat Jul 14 18: 5:27 2001 Delivered-To: freebsd-net@freebsd.org Received: from newsguy.com (smtp.newsguy.com [209.155.56.71]) by hub.freebsd.org (Postfix) with ESMTP id E403637B408 for ; Sat, 14 Jul 2001 18:05:24 -0700 (PDT) (envelope-from dcs@newsguy.com) Received: from newsguy.com (ppp045-bsace7001.telebrasilia.net.br [200.181.80.45]) by newsguy.com (8.9.1a/8.9.1) with ESMTP id SAA90038 for ; Sat, 14 Jul 2001 18:05:22 -0700 (PDT) Message-ID: <3B50ECDF.618ED83C@newsguy.com> Date: Sat, 14 Jul 2001 22:07:43 -0300 From: "Daniel C. Sobral" Reply-To: dcs@freebsd.org X-Mailer: Mozilla 4.77 [en] (Win98; U) X-Accept-Language: en,pt-BR,pt,en-GB,en-US,ja MIME-Version: 1.0 To: freebsd-net@freebsd.org Subject: 802.1q and multicasting Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-net@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org I discovered a curious problem while trying to set up some firewalls. I do not receive multicast packets through 802.1q (vlan tagging) unless I'm doing a tcpdump on the interface. My first thought was that this was promiscuous mode-related, but I tried calling ifpromisc() from if_up() on sys/net/if.c and that didn't help. I tried to find out what else was different when this was done through bpf, but aside a bpf flag I couldn't find anything. Anyone has any clues or insights? -- Daniel C. Sobral (8-DCS) dcs@newsguy.com dcs@freebsd.org capo@the.secret.bsdconspiracy.net wow regex humor... I'm a geek To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message