Reimer, Fred wrote: > > No offense, but this is CCNA material. Do they still teach classful for CCNA, though? Perhaps the only thing that's hard for him is that 192.168.24.0 has a mask of 255.255.255.0 in a classful system. Moving the prefix over to the left of that classful boundary isn't something they teach for CCNA yet. (They will soon. The new Networking Academy books teach it from the start now.)
Priscilla > If you are going for > your CCNP, then > you should already have your CCNA and know the answer. But > anyway... > > If you need a network with 400 hosts, the smallest subnet would > have a /23 > mask. So take the first part of your given network and assign > it to that: > > 192.168.24.0/23 (192.168.24.0-192.168.25.255) > > Then you need one with 200 hosts. Well, that could fit within > a /24 subnet, > so assign the next available to that: > > 192.168.26.0/24 (192.168.26.0-192.168.26.255) > > Now you only have 192.168.27.0/24 left from the original > 192.168.24.0/23 > (which covered 192.168.24.0-192.168.27.255). You need two > 50's, so that > should fit within /26 subnets each. Assign them: > > 192.168.27.0/26 (192.168.27.0-192.168.27.63) > 192.168.27.64/26 (192.168.27.64-192.168.27.191) > > Finally, you need three subnets that can have two hosts each, > which would > fit within /30 subnets. So assign: > > 192.168.27.192/30 > 192.168.27.196/30 > 192.168.27.200/30 > > > Fred Reimer - CCNA > > > Eclipsys Corporation, 200 Ashford Center North, Atlanta, GA > 30338 > Phone: 404-847-5177 Cell: 770-490-3071 Pager: 888-260-2050 > > > NOTICE; This email contains confidential or proprietary > information which > may be legally privileged. It is intended only for the named > recipient(s). > If an addressing or transmission error has misdirected the > email, please > notify the author by replying to this message. If you are not > the named > recipient, you are not authorized to use, disclose, distribute, > copy, print > or rely on this email, and should immediately delete it from > your computer. > > > -----Original Message----- > From: Steven Aiello [mailto:[EMAIL PROTECTED] > Sent: Tuesday, September 09, 2003 8:02 AM > To: [EMAIL PROTECTED] > Subject: Please Help - CIDR - How the bits work [7:75050] > > I just started my routing class for my CCNP. We are covering > CIDR. The > book is VEEEEEERY vague on how the bit patterns break down and > are used. > > > This was a problem posed in one of my CCNP labs > > I have network number > > 192.168.24.0 / 22 > > from this I need > networks with > > 400 hosts > 200 hosts > 50 hosts > 50 hosts > 2 hosts (for serial int - no ip un-numbered allowed ) > 2 hosts > 2 hosts > > Also no NATing > > Thanks all I really could use the help > > Steve > **Please support GroupStudy by purchasing from the GroupStudy > Store: > http://shop.groupstudy.com > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > > Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=75080&t=75050 -------------------------------------------------- **Please support GroupStudy by purchasing from the GroupStudy Store: http://shop.groupstudy.com FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
