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Full Discussion: Get IP list from CIDR
Top Forums Shell Programming and Scripting Get IP list from CIDR Post 302102227 by Santi on Tuesday 9th of January 2007 06:05:15 AM
Old 01-09-2007
Thanks for the fast reply!! But it doesnt works with all CIDR.. for this simple example:

Quote:
./cidr.sh 192.168.0.0/24
192.168.0.1
192.168.0.2
192.168.0.3
192.168.0.4
192.168.0.5
192.168.0.6
192.168.0.7
192.168.0.8
192.168.0.9
192.168.0.10
192.168.0.11
192.168.0.12
192.168.0.13
192.168.0.14
192.168.0.15
192.168.0.16
192.168.0.17
192.168.0.18
192.168.0.19
192.168.0.20
192.168.0.21
192.168.0.22
192.168.0.23
Complete list according to this network must be:

Quote:
192.168.0.1
192.168.0.2
192.168.0.3
192.168.0.4
192.168.0.5
(..)
192.168.0.250
192.168.0.251
192.168.0.242
192.168.0.253
192.168.0.254
I have found this module for Perl, but I prefer a shell script:

http://search.cpan.org/~mrsam/Net-CIDR-0.11/CIDR.pm

Regards,
 

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AGGREGATE-IOS(1)					      General Commands Manual						  AGGREGATE-IOS(1)

NAME
aggregate-ios - optimise a concatenated set of cisco/IOS prefix filters to help make them nice and short. SYNOPSIS
aggregate-ios <source_config >optimised_config DESCRIPTION
Takes cisco IOS configuration on stdin, and optimises any prefix filters found using aggregate(1). Optimised filters are produced on std- out. OPTIONS
None. DIAGNOSTICS
Any diagnostics produced by aggregate(1) are passed through on stderr. EXAMPLES
The following configuration fragment: ip prefix-list AS65530 description Foo, Inc ip prefix-list AS65530 permit 10.1.0.0/16 ip prefix-list AS65530 permit 10.2.0.0/16 ip prefix-list AS65530 permit 10.2.1.0/24 ip prefix-list AS65530 permit 10.3.0.0/16 ip prefix-list AS65531 description Bar.Com ip prefix-list AS65531 seq 5 permit 192.168.1.0/24 ip prefix-list AS65531 seq 10 permit 192.168.2.0/24 ip prefix-list AS65531 seq 15 permit 192.168.0.0/19 is optimised as follows: ip prefix-list AS65530 permit 10.1.0.0/16 le 24 ip prefix-list AS65530 permit 10.2.0.0/15 le 24 ip prefix-list AS65531 permit 192.168.0.0/19 le 24 SEE ALSO
aggregate(1) HISTORY
Aggregate-ios was written by Joe Abley <jabley@mfnx.net>. BUGS
All those in aggregate(1) and then some :) Joe Abley 2000 November 27 AGGREGATE-IOS(1)
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