Sniffing ranges of ips

[MMatos <razielukain () gmail com>]

Hi there!

I want to write a little program that analyses packets within a given ip 
range.

My current problem is to set a filter that work with ip ranges.

For example I want to dump all traffic that arrives to my box from ips 
192.168.2.15 to 192.168.2.40
I could write all the ips in the range but that's not a good solution, 
so how can implement that filter correctly using the range?

some kind of
$tcpdump "src 192.168.2.15/40"           :)

TIA

MMatos

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