So 254 in binary is 11111110 and 1 = must match and 0 = don't care
64 in binary 01000000 65 in binary 01000001 so if the first 7 bits must match they are 0100000 and the last bit we don't care, it could be 0 or 1 so you are matching 01000000 01000001 Hope that was somewhat clear. -Marc On Wed, Jan 26, 2011 at 2:42 PM, Lemish, Christopher < [email protected]> wrote: > Could someone explain the 64.0.0.0/7 binary logic that leads you to > 64.0.0.0 and 65.0.0.0? > > > > I understand that /7 is 254.0.0.0 > > > > Thank you, > > Chris > > > > > > > This email and any files transmitted with it are confidential and are > intended for the sole use of the individual(s) to whom they are properly > addressed. Any use, dissemination or forwarding of this email and any > files transmitted with it by anyone other than the intended recipient(s) > is strictly prohibited. If you have received this email in error, please > notify the sender by replying to this email. Black Box Corporation and > its affiliates reserve the right to scan and monitor all e-mail traffic. > > _______________________________________________ > 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
