Except that expression, when expanded, only allows a few of the desired address through: those with 1 or 2 as the first digit, 0, 1, 2, or 4 as the second digit, and 0 through 3 as the last digit. So desired addresses will be blocked, such as 105 through 109, 115 through 119, 125 through 129, 135 through 199, etc.
But you can express the desired filter in three lines to get the logical OR of
100 through 199 with ^1[0-9][0-9]$,
200 through 229 with ^2[0-2][0-9]$, and
230 through 234 with ^23[0-4]$.
Good luck and have fun!
Vincent C Jones
http://www.networkingunlimited.com
