VLSM Overlap

Studying VLSM, appears to be rather easy so I'm not sure if I've found another error in my book or I'm reading it wrong.

SubnetID/Broadcast
172.16.6.0 - 172.16.7.255

172.16.6.0 - 172.16.6.255

Do these two not overlap?

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Comments

networker050184

Yes they over lap.

bbarrick

networker050184 wrote: »

Yes they over lap.

I'm trying to overlook the numerous typos/errors in this book, but the more I find the more I can't wait till I get Lammle's new book. This is getting ridiculous.

NetworkVeteran

Check the errata page for your book. That will save you time and frustration.

blueberries

Why don't you convert it to binary to check?

bbarrick

NetworkVeteran wrote: »

Check the errata page for your book. That will save you time and frustration.

I have been, this is the third error I've found that was not in their errata. The previous two have since been added.

bbarrick

blueberries wrote: »

Why don't you convert it to binary to check?

Well, at my level I don't have a whole lot of faith in my ability but I had a feeling this was blatantly obvious, especially to those of you who are already certified.

bbarrick

Personally, I'm starting to feel like they copy and paste from the previous editions, cut out the irrelevant material and sent it to print without even trying to edit it. Kick it out the door and let the buyers do all the work. I can understand a book of this size having a few errors, but their errata page is growing rather quickly.

xXErebuS

Yup; I have found several almost word for word chapters / sections on Cisco's site when I tried to research something I read in a book further (not sure whom copied whom but I have my guess).

Also (I don't think this violates NDA), I have went through A level exams and then while studying for the P level the questions that were on the A level exam were in the P level books / guides almost word for word.