On Friday 18 September 2009, MANNY Omari wrote: > Hello Dears, > Anyone can please help with the following issue, How the summary of these > two addresses " 155.1.8.8, 155.1.10.10" became /22?according to my > calculation it should be /20 Best regards,
Just write them in binary and find the longest common prefix: 10011011 00000001 00001000 00001000 (155.1.8.8) 10011011 00000001 00001010 00001010 (155.1.10.10) ^^^^^^^^^^^^^^^^^^^^^^^^ The part above "^"s is 22 bits long. _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
