networkguy.de
Subnet Mask Sheet
Networkmask Reverse Networkmask /CIDR Usable Size 0.0.0.0 255.255.255.255 /0 4.294.967.294 :-O 128.0.0.0 127.255.255.255 /1 2.147.483.646 128 Class ‘A’s 192.0.0.0 63.255.255.255 /2 1.07…