October 29th, 2013, 09:14 AM
Subtracting IP addresses to find their range
Why is the difference between these two IP addresses 511?
Here are the two IPs
How is this number derived?
October 29th, 2013, 09:55 AM
The 'proper' answer would depend on what subnet mask was in use, but assuming it was a 'standard' Class B, then you have (in the .254.* range) 255 numbers (1 to 255), then you'll have from 0 to 255 (a total of 256) in the .255.* range, for a total of ... 511.
Even that is not a proper answer as often the *.255 IP numbers are used for broadcast.
The moon on the one hand, the dawn on the other:
The moon is my sister, the dawn is my brother.
The moon on my left and the dawn on my right.
My brother, good morning: my sister, good night.
-- Hilaire Belloc
October 29th, 2013, 10:24 AM
There are 255 values between the .255 of the first IP and the .254 of the second?
I don't understand.
October 29th, 2013, 12:37 PM
If you know nothing[or very little] about networking, you probably wouldn't understand the 0-255 range.
However, if you want more understanding, take a look at THIS LINK and hopefully it will help you understand more about IP addresses.