Classification: NATO UNCLASSIFIED - RELEASABLE FOR INTERNET TRANSMISSION
We've got a few A2s, but mostly 7H4284-49 DFE Platinum blades. We have maclock first-arrival set to zero. Each host is added as a static MAC entry for the port it is on. We did this by first learning the MAC addresses, then moving all dynamic entries to static entries. Then, we set the first-arrival on all ports to zero. The switches are performing exactly as expected. I am just curious if anyone else has seen these wild MAC addresses from HP printers and would like to confirm if it is the other network protocols that are active on the printer that causes it. In the meantime, we will see if our admins can shut down all unnecessary protocols on all printers. The goal here is to eliminate the false MAC Lock Violations. Regards, Jesse W. Ohlsson Engineer, Information Systems Administration NCSA Sector Mons, Customer Services Squadron B7010 SHAPE Belgium tel: +32-65-44-8518; NCN 254-8518 From: [email protected] [mailto:[email protected]] Sent: Monday, August 24, 2009 15:41 To: Enterasys Customer Mailing List Subject: Antwort: [enterasys] MAC Locking, strange MAC addresses from HP jetdirect Hi, what switch type do you use ? On our N3 and A2 nothing like this, but our configurationis is only maclock first arrival.... Cu Christian Janßen EK-T-SIT Telefon +49 2151 38-4711 Telefax +49 2151 38-3941 [email protected] Evonik Stockhausen GmbH Bäkerpfad 25 47805 Krefeld www.evonik.com <http://www.evonik.com/> Aufsichtsratsvorsitzender: Dr. Claus Rettig Geschäftsführung: Dr. Johannes Ohmer (Sprecher), Willibrord Lampen Sitz der Gesellschaft ist Krefeld Registergericht: Amtsgericht Krefeld; Handelsregister HRB 5791 This e-mail transmission, and any documents, files or previous e-mail messages attached to it may contain information that is confidential or legally privileged. If you are not the intended recipient, or a person responsible for delivering it to the intended recipient, you are hereby notified that you must not read this transmission and that any disclosure, copying, printing, distribution or use of any of the information contained in or attached to this transmission is STRICTLY PROHIBITED. If you have received this transmission in error, please immediately notify the sender by telephone or return e-mail and delete the original transmission and its attachments without reading or saving in any manner. Thank you. <[email protected]> 24.08.2009 14:07 Bitte antworten an [email protected] An "Enterasys Customer Mailing List" <[email protected]> Kopie Thema [enterasys] MAC Locking, strange MAC addresses from HP jetdirect Classification: NATO UNCLASSIFIED - RELEASABLE FOR INTERNET TRANSMISSION Hello, We just engaged MAC locking across our whole network. We have seen a few strange MAC Lock violations from ports with HP Jetdirect printers connected to them. Here are the strange MAC addresses we got as violations: 2C 00 1B 78 EC 0B 68 70 2D 50 43 4C These addresses no not decode to any known manufacturer and are not the MAC addresses of the jetdirect cards. I think they are generated on IPX/SPX, or perhaps AppleTalk, which IS enabled unnecessarily on these printers. Has anyone else seen HP printers throw wierd MAC addresses like this? Jesse W. Ohlsson Engineer, Information Systems Administration NCSA Sector Mons, Customer Services Squadron B7010 SHAPE Belgium tel: +32-65-44-8518; NCN 254-8518 * --To unsubscribe from enterasys, send email to [email protected] with the body: unsubscribe enterasys [email protected] * --To unsubscribe from enterasys, send email to [email protected] with the body: unsubscribe enterasys [email protected] --- To unsubscribe from enterasys, send email to [email protected] with the body: unsubscribe enterasys [email protected]
