Security Basics mailing list archives
RE: IP to MAC mapping
From: "Ian Lyte" <ilyte () alias666 freeserve co uk>
Date: Fri, 22 Nov 2002 09:59:15 -0000
Hi, If you use ettercap with the -O option it passively scans the network for all ip addresses and MAC addresses that are using it. <from ettercap.pdf> ?O, ??passive Collect infos in passive mode. This method WILL NOT SEND ANY packet on the wire. It will put the interface in promiscuous mode and look for packets passing through it. every interesting packet (SYN or SYN+ACK) is analyzed and used to make a complete map of the LAN. The infos collected are: IP and MAC of the hosts, type of Operating System (passive OS fingerprint), network adapter vendor and running services. (for a technical description refer to README) In the list are show even other infos: "GW" if the host is a GateWay, "NL" if the IP is not belonging to the LAN and "RT" if the host act as a router. Useful if you want to make a start up host list in complete passive mode, when you are satisfied of the collected infos, you can convert it to the startup host list by simply press C, and then work as usual. Ian -----Original Message----- From: Johan Denoyer [mailto:jdenoy () digital-connexion info] Sent: 20 November 2002 17:50 To: security-basics () securityfocus com Subject: IP to MAC mapping Hi, we are currently looking into illegal usage of a protected network. We are managing a class C network, and we would like to be able to detect illegal usage of the network by finding the MAC address of the ip address used and then checking it against a database. Now I would like to find a software or a perl scrip that would do the work. (The budget that we have is 0$, so freeware is likely to be the solution) I have tried doing searches using google without any luck. If anyone uses such software, please tell me which one, and where I can find it. Thanks, Salutations, Johan Denoyer jdenoy () digital-connexion info Digital Connexion http://www.digital-connexion.info PGP : 0x57A6727B
Current thread:
- IP to MAC mapping Johan Denoyer (Nov 22)
- RE: IP to MAC mapping Ian Lyte (Nov 25)
- RE: IP to MAC mapping Vytautas Kaziukonis (Nov 26)
- Re: IP to MAC mapping _rAt_ (Nov 26)
- Re: IP to MAC mapping Richard Westlake (Nov 25)
- RE: IP to MAC mapping Burton M. Strauss III (Nov 25)
- Re: IP to MAC mapping Shanon (Nov 28)
- RE: IP to MAC mapping Seth Connolly (Nov 25)
- Re: IP to MAC mapping Jon (Nov 25)
- Re: IP to MAC mapping Devdas Bhagat (Nov 25)
- Re: IP to MAC mapping Robert Hogan (Nov 26)
- Message not available
- Re: IP to MAC mapping Devdas Bhagat (Nov 26)
- RE: IP to MAC mapping Ian Lyte (Nov 25)