$ ipnet_

Crate

Name: ipnet New version: 2.12.0 Release date: 2026-03-03T00:44:44.752166Z

Crate readme

Short description This module provides types and useful methods for working with IPv4 and IPv6 network addresses, commonly called IP prefixes.

Long description The module includes IpNet, Ipv4Net, and Ipv6Net types built on IpAddr, Ipv4Addr, and Ipv6Addr. It also offers types for iterating over IP address ranges (IpAddrRange, Ipv4AddrRange, Ipv6AddrRange) and methods extending Ipv4Addr and Ipv6Addr for arithmetic operations. It is compatible with Rust stable features, requires Rust 1.26 or later, and contains comprehensive tests.

Features • Stable Rust features guaranteed to compile with stable toolchain • Requires Rust 1.26 or later • Types for iterating IP subnets and address ranges • subnets() method for subdividing networks • Extends native IP address types with useful methods

Code Examples Create a network address and print the hostmask and netmask

 let net4 = Ipv4Net::new(Ipv4Addr::new(10, 1, 1, 0), 24).unwrap();
let net6 = Ipv6Net::new(Ipv6Addr::new(0xfd, 0, 0, 0, 0, 0, 0, 0), 24).unwrap();

Subdivide an existing IP network into smaller subnets

 let net: Ipv4Net = "192.168.0.0/23".parse().unwrap();
let subnets = net.subnets(25).expect("PrefixLenError: new prefix length cannot be shorter than existing");

Iterate over the valid subnets between two IPv4 addresses

 let start = Ipv4Addr::new(10, 0, 0, 0);
let end = Ipv4Addr::new(10, 0, 0, 239);
let subnets = Ipv4Subnets::new(start, end, 0);

Aggregate a list of IP prefixes

 let strings = vec!["10.0.0.0/24", "10.0.1.0/24"];
let nets: Vec<IpNet> = strings.iter().filter_map(|p| p.parse().ok()).collect();

Links • https://docs.rs/ipnet/ • https://crates.io/crates/ipnet • https://github.com/krisprice/ipnet/issues

https://docs.rs/ipnet https://api.github.com/repos/krisprice/ipnet/releases/292324056

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Code Examples