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Convert IP range to CIDR specification

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Convert IP Range to CIDR

IP To CIDR allows you to convert IP range to CIDR specification. This utility is useful for Apache web server administrators and give them a possibility to easy manage domain access.

Please fill in the fields below:

Start IP
(e.g. "65.3.12.1")

End IP
(e.g. "65.4.6.255")

Line prefix
none allow from deny from

After pressing ‘Submit’, the script will return an array of CIDR blocks that fit into a specified range of ip addresses.

CIDR Converter

This will generate a report from a CIDR notationed IP.

Please fill in the fields below:

Address (e.g. "65.3.12.1") / Netmask (e.g. "/24")

/

After pressing ‘Submit’, the script will return an array of IP addresses in the network.

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