I wouldn't not use mac auto unless the task prohibited it like Brandon said. As the MAC address is different in every rack I find it very unlikely they are looking for it with the scripts.
Regards, Tyson Scott - CCIE #13513 R&S, Security, and SP Technical Instructor - IPexpert, Inc. Mailto: <mailto:[email protected]> [email protected] Telephone: +1.810.326.1444, ext. 208 Live Assistance, Please visit: <http://www.ipexpert.com/chat> www.ipexpert.com/chat eFax: +1.810.454.0130 IPexpert is a premier provider of Self-Study Workbooks, Video on Demand, Audio Tools, Online Hardware Rental and Classroom Training for the Cisco CCIE (R&S, Voice, Security & Service Provider) certification(s) with training locations throughout the United States, Europe, South Asia and Australia. Be sure to visit our online communities at <http://www.ipexpert.com/communities> www.ipexpert.com/communities and our public website at <http://www.ipexpert.com/> www.ipexpert.com From: [email protected] [mailto:[email protected]] On Behalf Of Kingsley Charles Sent: Friday, May 07, 2010 9:38 AM To: Brandon Carroll Cc: [email protected] Subject: Re: [OSL | CCIE_Security] Redudant Interface There are three classification methods used with multiple contexts * Unique interface * Unique MAC address * NAT configuration For unique mac interface you can either use mac-auto or configure manually. Unless, the task asks for mac-auto, we should not configure it. The task might solve the issue using NAT. As Brandon said, mac-auto should be enabled only the tasks for... With regards Kings On Fri, May 7, 2010 at 6:31 PM, Brandon Carroll <[email protected]> wrote: I agree. The only reason I wouldn't Is if the task prohibited. Regards, Brandon Carroll - CCIE #23837 Senior Technical Instructor - IPexpert Mailto: [email protected] Telephone: +1.810.326.1444 Live Assistance, Please visit: www.ipexpert.com/chat eFax: +1.810.454.0130 ::Message Sent from iPhone:: IPexpert is a premier provider of Classroom and Self-Study Cisco CCNA (R&S, Voice & Security), CCNP, CCVP, CCSP and CCIE (R&S, Voice, Security & Service Provider) Certification Training with locations throughout the United States, Europe and Australia. Be sure to check out our online communities at www.ipexpert.com/communities and our public website at www.ipexpert.com <http://www.ipexpert.com/> . On May 7, 2010, at 5:54 AM, Willians Barboza <[email protected]> wrote: Personally I always use tge mac address auto command when I configure vitrual context, so that it will create different mac addresses for the contexts, avoiding conficts or additional configs on the switches 2010/5/7 Brandon Carroll <[email protected]> This is straight from the guide- Redundant Interface MAC Address The redundant interface uses the MAC address of the first physical interface that you add. If you change the order of the member interfaces in the configuration, then the MAC address changes to match the MAC address of the interface that is now listed first. Alternatively, you can assign a MAC address to the redundant interface, which is used regardless of the member interface MAC addresses. When the active interface fails over to the standby, the same MAC address is maintained so that traffic is not disrupted. Regards, Brandon Carroll - CCIE #23837 Senior Technical Instructor - IPexpert Mailto: [email protected] Telephone: +1.810.326.1444 Live Assistance, Please visit: www.ipexpert.com/chat eFax: +1.810.454.0130 IPexpert is a premier provider of Self-Study Workbooks, Video on Demand, Audio Tools, Online Hardware Rental and Classroom Training for the Cisco CCIE (R&S, Voice, Security & Service Provider) certification(s) with training locations throughout the United States, Europe, South Asia and Australia. Be sure to visit our online communities at www.ipexpert.com/communities and our public website at www.ipexpert.com <http://www.ipexpert.com/> On May 6, 2010, at 10:02 PM, Sumit Mahla wrote: Hello All, When we use redundant interface.... Lets take an example.. Interface redundant 1 member-interface e0/0 member-interface e0/3 interface red1.1 vlan 20 interface red 1.2 vlan 40 Now i assign red1.1 to context abc1 and red 1.2 to context abc2 by default redundant interace uses the mac address of first defined member-interface... now i have two sub interface made from redundant interface.... so these two interface will be using same mac address... Right ? Now when we assign these two sub interface to two context.... would we need mac address auto command in system config (as both are using same mac-address)...? Regards _____ Catch the changing security environment Get it now. <http://news.in.msn.com/internalsecurity/> _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com <http://www.ipexpert.com/> _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com <http://www.ipexpert.com/> -- Willians Barboza CCIE Security # 25629 _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com <http://www.ipexpert.com/> _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com <http://www.ipexpert.com/>
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