All, Yesterday I did Vol-1 Lab-11 and today I am working on Vol-1 Lab-15 and I have a question regrading the wildcard mask. In the Lab-11 solution guide all of the wildcard masks are 0.0.0.0 but in the Lab-15 solution guide some are 0.0.0.0 and some are 0.0.0.255. Is it just loopback addresses? Is there some rule of thumb I missed?
I realize the goal is determining which interface will be placed in what area, 0.0.0.0 only matching the one interface and 0.0.0.255 matching a subnets worth of interface addresses, I'm just looking for consistency for my understanding and I'm struggling to find it. In both situations it is only one interface that is added to an area, yet the wildcard masks are different. I do not understand why Lab-11 uses such tight scope and Lab-15 does not. Thanks for your help. Jud _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
