Aggis 2.0, for Manipulating CIDR Address Ranges
Dale S. Johnson
Tue Aug 30 17:20:53 UTC 1994
I've posted a new version of "aggis" on merit.edu:pub/nsfnet/cidr/aggis
(and a man page in aggis.l). Aggis is a small perl program for
expanding CIDR aggregate notation into classful IP net ranges, and for
helping to IP net ranges into aggregates.
This version 2.1 handles all of the cases that the old version (released
last February) would. In addition, it:
- Handles full "x.x.x.x - y.y.y.y" notation
- Expands subaggregates into host IP ranges, rather than only saying
that they are subaggregates
- Has "-q" flag for "produce full 4-byte dotted quad output", and
"-r" for "always produce expansions in host address ranges"
(instead of classful net ranges).
If you would like to try the program without installing it locally, it can
be run through the prdb.merit.edu whois server:
>> $ whois -h prdb.merit.edu 'aggis 141.208.32/21'
>> 141.208.32/21 is a subnet representing 1/32 of Class B network 141.208
>> Address Range 18.104.22.168 - 22.214.171.124
>> $ whois -h prdb.merit.edu 'aggis 141.208 - 141.216'
>> The range of nets from 141.208 to 141.216/16 can be represented by:
>> 141.208/13 ( 8 nets: 141.208 - 141.215 )
>> 141.216/16 ( 1 net: 141.216 )
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