Search Results for "cidr"

IPNetwork is a command-line tool and C# library for IP network calculations. It helps .NET developers work with IPv4, IPv6, CIDR, netmasks, subnets, and supernets. The library can parse networks and calculate values such as network address, CIDR, netmask, broadcast, first usable address, last usable address, and total address count. It also supports containment and overlap checks, which are useful for validation, routing tools, firewall rules, and network planning.

Google Hosts is a collection of shell tools for finding Google IP addresses and generating hosts-file entries. It can inspect an IP to retrieve details such as packet loss, ping time, and SSL domain information. A CIDR range can be scanned to discover candidate addresses, then filtered for specific Google domains. Selected addresses can be assigned to domains and written into an aggregated hosts configuration. An automated script can discover a CIDR from a DNS server and run the search, selection, and apply workflow. The project also includes a dnsmasq configuration for users who prefer DNS-based mapping.

...By centralizing ranges that are otherwise spread across announcements and registries, it saves time and reduces misconfiguration risk. The repository typically includes CIDR blocks and scripts or instructions for consuming them on various platforms. It’s useful in both enterprise networks and homelab setups where precise rules are preferred over broad allowances. Because IP allocations evolve, the project aims to make refreshing and automating the data straightforward.