libslirp ☆

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Description:
General purpose TCP-IP emulator

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Networking

Tags: networking library tcp-ip emulator virtualization

Install: brew install libslirp

About:
Libslirp is a library that provides a virtual network stack, implementing TCP/IP protocols. It enables applications to create virtual network interfaces and communicate over the internet without requiring root privileges or physical hardware access.

Key Features:

User-mode networking stack
No root privileges required
TCP/IP protocol implementation
Virtual network interface support

Use Cases:

Virtual machine networking without host configuration
Container network isolation
Network simulation and testing

Alternatives:

TAP/TUN interfaces – Requires root access and system configuration

Version History

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