From owner-freebsd-questions Wed Aug 14 14: 9:42 2002 Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.FreeBSD.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id D748337B401 for ; Wed, 14 Aug 2002 14:09:37 -0700 (PDT) Received: from rush.telenordia.se (mail.telenordia.se [194.213.64.42]) by mx1.FreeBSD.org (Postfix) with SMTP id 9AC0443E72 for ; Wed, 14 Aug 2002 14:09:36 -0700 (PDT) (envelope-from mark.rowlands@minmail.net) Received: (qmail 19509 invoked from network); 14 Aug 2002 23:08:21 +0200 Received: from bb-62-5-36-29.bb.tninet.se (HELO pcmarpxy.tninet.se) (62.5.36.29) by mail.telenordia.se with SMTP; 14 Aug 2002 23:08:21 +0200 Content-Type: text/plain; charset="iso-8859-1" From: Mark Rowlands To: Fernando Gleiser Subject: Re: tool to derive ip from mac address of a remote box? Date: Wed, 14 Aug 2002 23:09:23 +0200 User-Agent: KMail/1.4.2 Cc: References: <20020814161845.B22629-100000@localhost> In-Reply-To: <20020814161845.B22629-100000@localhost> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Message-Id: <200208142309.23143.mark.rowlands@minmail.net> Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Wed August 14 2002 21:20, Fernando Gleiser wrote: > On Wed, 14 Aug 2002, Mark Rowlands wrote: > > I know this is not strictly freebsd related but ......there is a dodg= y > > network card somewhere on my network pumping 1.5mb/s of crap..... All= I > > have is a mac address, how can I get an ip for it? > > If the offending machine has sent some packets to the BSD box, do a > arp -an | grep > > If it hasn't, try a 'tcpdump -len ether host ' > > I should learn to give better info :- the packet is broadcast and has an invalid ip header so that is why I onl= y=20 have the mac address :-(........ tried dumping and this is all I get,=20 1.5mb/s of em........ 0000 ff ff ff ff ff ff 00 05 5d d8 9b 76 08 00 00 01 ........ ]..v...= =2E 0010 08 00 06 04 00 01 00 02 2d 2e af d7 e0 00 00 fe ........ -......= =2E 0020 ff ff ff ff ff ff e0 00 00 09 21 74 72 79 20 77 ........ ..!try = w 0030 77 77 2e 65 6c 73 61 2e 63 6f 6d 20 24 8c 00 43 ww.elsa. com $..= C 0040 00 44 01 34 d1 ad 47 44 42 43 41 43 41 43 41 43 .D.4..GD BCACACA= C 0050 41 43 41 43 41 43 41 43 41 00 20 43 41 43 41 43 ACACACAC A. CACA= C 0060 41 43 41 43 41 43 41 43 41 43 41 43 41 43 41 43 ACACACAC ACACACA= C 0070 41 43 41 43 41 43 41 43 41 42 4e 00 ff 53 4d 42 ACACACAC ABN..SM= B 0080 25 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 %....... .......= =2E 0090 00 00 00 00 00 00 00 00 00 00 00 00 11 00 00 21 ........ .......= ! 00a0 00 00 00 00 00 00 00 00 00 e8 03 00 00 00 00 00 ........ .......= =2E 00b0 00 00 00 21 00 56 00 03 00 01 00 00 00 02 00 32 ...!.V.. .......= 2 00c0 00 5c 4d 41 49 4c 53 4c 4f 54 5c 42 52 4f 57 53 .\MAILSL OT\BROW= S 00d0 45 00 01 00 80 a9 03 00 50 53 33 32 30 31 36 31 E....... PS32016= 1 00e0 00 00 00 00 00 00 00 00 01 00 03 03 00 00 00 00 ........ .......= =2E 00f0 aa 55 00 89 2d 39 4b 4d 58 49 31 35 4c 41 30 34 .U..-9KM XI15LA0= 4 0100 43 00 C. = =20 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message