async-arp

async-arp is an asynchronous Rust crate that provides a high-level client for interacting with the Address Resolution Protocol (ARP). It can be used to probe the presence of hosts in a network or send advanced, custom ARP requests. This crate is ideal for network diagnostics, monitoring, or any application requiring interaction with ARP.

Features

• Async & Extensible: Uses the Tokio runtime for efficient asynchronous networking, with plans to support other async runtimes or a runtime-agnostic implementation.
• Host Probing: Quickly probe for active devices in the network using ARP requests.
• Advanced Requests: Send custom ARP requests and interact with devices in more complex ways.
• ARP Caching: ARP responses are cached for a customizable duration, reducing redundant network requests.
• Retry capabilities: Improves reliability when probing hosts with intermittent responses.
• Unix-only: This crate is designed for Unix-based systems (Linux, macOS, BSD).

Documentation

You can find the documentation for this project, including examples, usage, and API reference, here:

• Documentation (generated by rustdoc)

Requirements

This library requires elevated privileges to access raw network interfaces. You can either:

1. Grant the program the CAP_NET_RAW capability (recommended):

   This allows the program to run without sudo while still being able to access raw network interfaces. It's a more secure option than running the entire program as root.

   To grant the necessary capability, use the following command:

   sudo setcap cap_net_raw=eip /path/to/your/program

2. Run the program with sudo privileges

License

Licensed under either of

• Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT) at your option.