If it is not directly called out then you have choices. If the lab said you must be able to ping all addressing then you have to use MLPPP as in most circumstances you cannot ping your local interface with a VT. There is no perfect answer to your question.
Regards, Tyson Scott - CCIE #13513 R&S, Security, and SP Managing Partner / Sr. Instructor - IPexpert, Inc. Mailto: [email protected] Telephone: +1.810.326.1444, ext. 208 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 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Carlos Valero Sent: Sunday, December 19, 2010 11:10 PM To: [email protected]; Don Lundquist Subject: Re: [OSL | CCIE_RS] WorkBook 3, Lab5, Section 1.3 MLPPP I would also like to see an answer to this question. I've seen examples when a Multilink Interface is createdand the Virtual-Template obviously requires the multilink group commandand I have also seen examples where the Multilink Interface is not presentand therefore the Virtual-Template does NOT use a multilink group command In such cases, the Virtual-Template only requires a ppp multilink commandand obvioulsy the IP address is configured directly on the Virtual-Template. It seems to me that we can ALWAYS use the second method (without the Multilink Interface), which would make this Multilink Interface TOTALLY irrelevant and unnecessary! But I guess there are cases when is needed.I just don't know what circumstances would make it useful/neededOf course, other than when we are explicitly asked to do it one way or the other. What do we exactly "gain" by using a Multilink Interface? I know that there are some OSPF implicationssince a Multilink Interface is seen by OSPF as a Point-to-Point linkwhile a Virtual-Template ......????? How does OSPF see a Virtual-Template by the way? Thanks!! --- On Sun, 12/19/10, Don Lundquist <[email protected]> wrote: From: Don Lundquist <[email protected]> Subject: [OSL | CCIE_RS] WorkBook 3, Lab5, Section 1.3 MLPPP To: "[email protected]" <[email protected]> Date: Sunday, December 19, 2010, 9:42 PM What is the main difference in either using an MLPPP Group configuration or a standard Virtual-Template interface configuration.. What should one watch for in the tasks that would indicate one vs the other? ( Other than the obvious "use a distributed group" method)... Regards, Don _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
