From owner-freebsd-questions Thu Sep 7 21:50:58 2000 Delivered-To: freebsd-questions@freebsd.org Received: from wantadilla.lemis.com (wantadilla.lemis.com [192.109.197.80]) by hub.freebsd.org (Postfix) with ESMTP id A3F3437B422 for ; Thu, 7 Sep 2000 21:50:54 -0700 (PDT) Received: (from grog@localhost) by wantadilla.lemis.com (8.11.0/8.9.3) id e884oaq44600; Fri, 8 Sep 2000 14:20:36 +0930 (CST) (envelope-from grog) Date: Fri, 8 Sep 2000 14:20:36 +0930 From: Greg Lehey To: igorr@crosswinds.net Cc: FreeBSD questions Subject: Re: Promiscuous mode Message-ID: <20000908142035.W83632@wantadilla.lemis.com> References: <20000906143857.Q18862@fw.wintelcom.net> <20000908083751.A14464@linux.rainbow> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 1.0i In-Reply-To: <20000908083751.A14464@linux.rainbow>; from igor@raduga.dyndns.org on Fri, Sep 08, 2000 at 08:37:51AM +0400 Organization: LEMIS, PO Box 460, Echunga SA 5153, Australia Phone: +61-8-8388-8286 Fax: +61-8-8388-8725 Mobile: +61-418-838-708 WWW-Home-Page: http://www.lemis.com/~grog X-PGP-Fingerprint: 6B 7B C3 8C 61 CD 54 AF 13 24 52 F8 6D A4 95 EF Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Friday, 8 September 2000 at 8:37:51 +0400, Igor Roboul wrote: > On Wed, Sep 06, 2000 at 02:38:57PM -0700, Alfred Perlstein wrote: >> * petro [000906 14:34] wrote: >>> rl0: promiscuous mode enabled >>> rl0: promiscuous mode disabled >>> What does it mean and how I can set this ???? >>> Thank you very much. >> >> When we say realtek cards are 'cheap', we didn't mean price-wise. > > Wow, but I have same for 3Com 3c905B-TX Fast Etherlink XL: > demon.rainbow kernel log messages: > >> xl0: promiscuous mode enabled >> xl0: promiscuous mode disabled >> xl0: promiscuous mode enabled >> xl0: promiscuous mode disabled > > I got this in todays root mail. So what this mean? It means you ran tcpdump. Normally Ethernet cards only accept packets which are addressed to them, and they ignore other people's packets. In promiscuous mode, they'll take all comers. You need that to run tcpdump, but it's a potential security issue, so the system logs it. Greg -- When replying to this message, please copy the original recipients. If you don't, I may ignore the reply. For more information, see http://www.lemis.com/questions.html Finger grog@lemis.com for PGP public key See complete headers for address and phone numbers To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message