As for VLSM, I found an example in Jeff Doyle (TCP/IP Vol 1) on p290 that I don't understand.
192.168.50.0 /25, and it states that the reason it has /25 is because it needs to have 100 hosts => so 2^7-2=126 hosts (as 2^6 would be too zmall), so it makes sense. What confuses me is that since 192.168.50.0 /25 is a Class C, it uses up /24 for subnet bits: And if /25 - /24 = /1 But isn't the way the calculate the number of subnet: 2^n-2, and in this case, 2^1-2 = 0, so does it mean it has no subnet? Also, as for host address, how can I derive Jeff's answer as the host range is 192.168.50.1-192.168.50.126? Thanks so much for your help in advance. Best Regards, Hunt Lee System Engineer WebCentral Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=35827&t=35827 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
