Thanks for the information. I did not have the aggregate tool on my
system and that tool looks rather usefull. I ended up finding the rpm
via debian but then it requires some other dependency as well. Instead
of compiling for RedHat I went another route which is why I am posting
in case anyone else using Redhat/Fedora/CentOS etc looks for a similar
tool.
I ended up using Net::CIDR
And a simple piece of perl code
#!/usr/bin/perl -T
# aggregate.pl
# usage ./aggregate.pl 192.168.1.50-192.168.1.200
use strict;
use Net::CIDR;
if ($ARGV[0] =~ /^\d+\.\d+\.\d+\.\d+\-\d+\.\d+\.\d+\.\d+\b/) {
#never trust input from the outside
print join("\n", Net::CIDR::range2cidr($ARGV[0])) . "\n";
#input was in proper format so print
} else { print "Data for range is not in an acceptable format.\n"; }
-Greg
> -----Original Message-----
> From: ethereal-users-bounces@xxxxxxxxxxxx
> [mailto:ethereal-users-bounces@xxxxxxxxxxxx] On Behalf Of Andrew Hood
> Sent: Monday, April 17, 2006 7:28 AM
> To: Ethereal user support
> Subject: Re: [Ethereal-users] IP ranges on capture filters?
>
> King, John (Greg) (LMIT-HOU) wrote:
> > Is there a way to tell tethereal to capture data for an ip range say
> > 192.168.1.50-100 without having to create a huge filter with many
> > entries? Currently I am covering the capture range like this:
> >
> > Tethereal -I eth1 -b 200 -a filesize:20000 -w 'SAMPLEa' -f
> "ip and (host
> > 192.168.1.50 or host 192.168.1.51 ...)"
>
> : echo 192.168.1.50-192.168.1.100 | aggregate -irange
> 192.168.1.50/31
> 192.168.1.52/30
> 192.168.1.56/29
> 192.168.1.64/27
> 192.168.1.96/30
> 192.168.1.100/32
>
> so:
>
> tethereal -i eth1 -b 200 -a filesize:20000 -w 'SAMPLEa' -f
> "ip and (net
> 192.168.1.50/31 or net 192.168.1.52/30 or net 192.168.1.56/29 or net
> 192.168.1.64/27 or net 192.168.1.96/30 or net 192.168.1.100/32)"
>
> --
> There's no point in being grown up if you can't be childish sometimes.
> -- Dr. Who
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>
