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[Directory](/) 2. / 3. emden-norfolk/cidrl Abandoned → [s1lentium/iptools](/?search=s1lentium%2Fiptools)Library emden-norfolk/cidrl =================== IP tools for CIDR blocks. 1.0.0(8y ago)186.7k3[1 issues](https://github.com/emden-norfolk/cidrl/issues)LGPL-2.0CPHP >=5.3.0 Since Jun 15Pushed 1y ago2 watchersCompare [ Source](https://github.com/emden-norfolk/cidrl)[ Packagist](https://packagist.org/packages/emden-norfolk/cidrl)[ Docs](https://github.com/emden-norfolk/cidrl)[ RSS](/packages/emden-norfolk-cidrl/feed)WikiDiscussions master Synced 2d ago READMEChangelog (2)DependenciesVersions (1)Used By (0) `cidrl` — CIDR List =================== [](#cidrl--cidr-list) **CIDRL** lists all IP addresses within a CIDR block (IPv4 and IPv6.) Supports subnetting. Classless Inter-Domain Routing (CIDR; *[rfc1519](https://tools.ietf.org/html/rfc1519)*) is a strategy for assigning and routing Internet Protocol (IP) addresses. Usage ----- [](#usage) ### `cidrl` for IPv4 [](#cidrl-for-ipv4) Analyse and list all hosts in a /29: ``` $ man cidrl $ cidrl -a 192.168.50.16/29 Gateway: 192.168.50.16 Broadcast: 192.168.50.23 Netmask: 255.255.255.248 Hosts: 8 $ cidrl 192.168.50.16/29 192.168.50.16 192.168.50.17 192.168.50.18 192.168.50.19 192.168.50.20 192.168.50.21 192.168.50.22 192.168.50.23 ``` Split a /24 into /28: ``` $ cidrl -s28 10.0.0.0/24 10.0.0.0/28 10.0.0.16/28 10.0.0.32/28 10.0.0.48/28 10.0.0.64/28 10.0.0.80/28 10.0.0.96/28 10.0.0.112/28 10.0.0.128/28 10.0.0.144/28 10.0.0.160/28 10.0.0.176/28 10.0.0.192/28 10.0.0.208/28 10.0.0.224/28 10.0.0.240/28 ``` See [`examples/host_exists_in_network.sh`](examples/host_exists_in_network.sh) for an example on how to use the `-e` option to programmatically check if a host exists within a given network. Alternatively, use `cidrl -ae `. ### `cidrl6` for IPv6 [](#cidrl6-for-ipv6) Split an IPv6 /60 into /64: ``` $ man cidrl6 $ cidrl6 -s64 fa01:0:0:ffa0::/60 fa01:0:0:ffa0::/64 fa01:0:0:ffa1::/64 fa01:0:0:ffa2::/64 fa01:0:0:ffa3::/64 fa01:0:0:ffa4::/64 fa01:0:0:ffa5::/64 fa01:0:0:ffa6::/64 fa01:0:0:ffa7::/64 fa01:0:0:ffa8::/64 fa01:0:0:ffa9::/64 fa01:0:0:ffaa::/64 fa01:0:0:ffab::/64 fa01:0:0:ffac::/64 fa01:0:0:ffad::/64 fa01:0:0:ffae::/64 fa01:0:0:ffaf::/64 ``` Analyse an IPv6 network and check if a given host exists within it: ``` $ cidrl6 -ae fa01::ffb0:3:0:0:ae90 fa01:0:0:ffa0::/64 Network: fa01:0:0:ffa0:: Range-end: fa01::ffa0:ffff:ffff:ffff:ffff Netmask: ffff:ffff:ffff:ffff:: The host fa01::ffb0:3:0:0:ae90 does not exist within this network. ``` Installation ------------ [](#installation) ``` $ git clone git@github.com:emden-norfolk/cidrl.git $ cd cidrl/ $ make $ sudo make install ``` References ---------- [](#references) The following manual pages are helpful for understanding the implementation of CIDRL: - [`getopt.3`](https://man7.org/linux/man-pages/man3/getopt.3.html) - [`scanf.3`](https://man7.org/linux/man-pages/man3/scanf.3.html) - [`byteorder.3`](https://man7.org/linux/man-pages/man3/byteorder.3.html) - [`atoi.3`](https://man7.org/linux/man-pages/man3/atoi.3.html) - [`inet.3`](https://man7.org/linux/man-pages/man3/inet.3.html) - [`inet_pton.3`](https://man7.org/linux/man-pages/man3/inet_pton.3.html) - [`inet_ntop.3`](https://man7.org/linux/man-pages/man3/inet_ntop.3.html) - [`ipv6.7`](https://man7.org/linux/man-pages/man7/ipv6.7.html) Further reading: - Grothof, C. (2008), [*Migrating Code to IPv6 the good, the bad and the ugly*](https://grothoff.org/christian/rmv608.pdf), Colorado Research Institute for Security and Privacy. See also: - [Nmap](https://nmap.org/) - [`prips`](https://gitlab.com/prips/prips/) Author ------ [](#author) 2016 (c) Damien Bezborodov ### Health Score 33 ↑ LowBetter than 75% of packages Maintenance26 Infrequent updates — may be unmaintained Popularity28 Limited adoption so far Community10 Small or concentrated contributor base Maturity56 Maturing project, gaining track record Bus Factor1 Top contributor holds 100% of commits — single point of failure How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window. **Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores. **Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement. **Maturity (30%)** — Project age, version count, PHP version support, and release stability. ### Release Activity Cadence Unknown Total 1 Last Release 3255d ago ### Community Maintainers ![](https://www.gravatar.com/avatar/d9965614f83e28b051507d8697c162e51d9289f0f3eeb87de1b9638431749c7f?d=identicon)[dbezborodov](/maintainers/dbezborodov) --- Top Contributors [![bezborodow](https://avatars.githubusercontent.com/u/950634?v=4)](https://github.com/bezborodow "bezborodow (89 commits)") --- Tags cidrcidr-notationipv4ipv4-calculatoripv6ipv6-calulatorIPcidr ### Embed Badge ![Health badge](/badges/emden-norfolk-cidrl/health.svg) ``` [![Health](https://phpackages.com/badges/emden-norfolk-cidrl/health.svg)](https://phpackages.com/packages/emden-norfolk-cidrl) ``` ### Alternatives [geoip2/geoip2 MaxMind GeoIP2 PHP API 2.5k85.4M294](/packages/geoip2-geoip2)[s1lentium/iptools PHP Library for manipulating network addresses (IPv4 and IPv6) 2446.2M24](/packages/s1lentium-iptools)[markrogoyski/ipv4-subnet-calculator Network calculator for subnet mask and other classless (CIDR) network information. 177813.7k6](/packages/markrogoyski-ipv4-subnet-calculator)[fastsitephp/fastsitephp A Modern Open Source Framework for building High Performance Websites and API’s with PHP 1292.7k1](/packages/fastsitephp-fastsitephp)[cidram/aggregator A stand-alone class implementation of the IPv4+IPv6 IP+CIDR aggregator from CIDRAM. 2624.1k](/packages/cidram-aggregator)[jaaulde/php-ipv4 PHP classes for working with IPV4 addresses and networks. 1034.6k](/packages/jaaulde-php-ipv4) PHPackages © 2026 [Directory](/)[Categories](/categories)[Trending](/trending)[Changelog](/changelog)[Analyze](/analyze)