Date: Wed, 14 Aug 2002 23:09:23 +0200 From: Mark Rowlands <mark.rowlands@minmail.net> To: Fernando Gleiser <fgleiser@cactus.fi.uba.ar> Cc: <freebsd-questions@FreeBSD.ORG> Subject: Re: tool to derive ip from mac address of a remote box? Message-ID: <200208142309.23143.mark.rowlands@minmail.net> In-Reply-To: <20020814161845.B22629-100000@localhost> References: <20020814161845.B22629-100000@localhost>
next in thread | previous in thread | raw e-mail | index | archive | help
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 dodgy > > 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 <mac> > > If it hasn't, try a 'tcpdump -len ether host <mac>' > > I should learn to give better info :- the packet is broadcast and has an invalid ip header so that is why I only have the mac address :-(........ tried dumping and this is all I get, 1.5mb/s of em........ 0000 ff ff ff ff ff ff 00 05 5d d8 9b 76 08 00 00 01 ........ ]..v.... 0010 08 00 06 04 00 01 00 02 2d 2e af d7 e0 00 00 fe ........ -....... 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 BCACACAC 0050 41 43 41 43 41 43 41 43 41 00 20 43 41 43 41 43 ACACACAC A. CACAC 0060 41 43 41 43 41 43 41 43 41 43 41 43 41 43 41 43 ACACACAC ACACACAC 0070 41 43 41 43 41 43 41 43 41 42 4e 00 ff 53 4d 42 ACACACAC ABN..SMB 0080 25 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 %....... ........ 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 ........ ........ 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\BROWS 00d0 45 00 01 00 80 a9 03 00 50 53 33 32 30 31 36 31 E....... PS320161 00e0 00 00 00 00 00 00 00 00 01 00 03 03 00 00 00 00 ........ ........ 00f0 aa 55 00 89 2d 39 4b 4d 58 49 31 35 4c 41 30 34 .U..-9KM XI15LA04 0100 43 00 C. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200208142309.23143.mark.rowlands>