subnettingquestions.com = godsend

jjbrog

I hardly knew a thijng about subnetting until a week ago. But I'm someone whos kinda always had the gift of doing math in my head(which for the case of subnetting a huge advantage, bigtime)

and using sybex ccna 6th ed I almost got it down pat, just need to work on it a couple more hours.

human151

I used that site a few times. Its a good place to validate what you know.