aggregate

aggregate is a tool for aggregating CIDR networks. Input is read from stdin and output is written to stdout. It undestands IPv4 networks represented as network/prefix, network/netmask and start_address - end_addres. It is able to read input in any one of these formats and output in the same or a different format.
It is also able to limit the maximum and minimum prefix length that will be output. This can be used to filter, for instance ignoring all networks with a prefix longer than 24 bits. That is all networks smaller than a traditional Class C.
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CVS CVS access for developers

Examples Examples of how aggregate can be used.

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aggregate is a tool for aggregating CIDR networks. Input is read from stdin and output is written to stdout. It undestands IPv4 networks represented as network/prefix, network/netmask and start_address - end_addres. It is able to read input in any one of these formats and output in the same or a different format. It is also able to limit the maximum and minimum prefix length that will be output. This can be used to filter, for instance ignoring all networks with a prefix longer than 24 bits. That is all networks smaller than a traditional Class C.
Download	Source Code
CVS	CVS access for developers
Examples	Examples of how aggregate can be used.