passt ☆
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Description:
User-mode networking daemons for virtual machines and namespaces
Type: Formula  |  Latest Version: 2026_01_20.386b5f5@0  |  Tracked Since: Dec 15, 2025
Links: Homepage  |  formulae.brew.sh
Category: Networking
Tags: networking virtualization containers vm namespace user-mode
Install: brew install passt
About:
passt provides user-mode networking daemons that connect virtual machines and network namespaces to the host network without requiring elevated privileges. It implements ARP, DHCP, ICMPv6, and TCP/UDP forwarding in userspace, enabling seamless network integration for lightweight virtualization scenarios.
Key Features:
  • Zero-configuration networking for VMs and containers
  • User-mode operation without root privileges
  • Supports ARP, DHCP, ICMPv6, and TCP/UDP forwarding
  • Minimal resource footprint
Use Cases:
  • Providing network connectivity to unprivileged VMs
  • Connecting container namespaces to external networks
  • Testing network configurations without host modification
Alternatives:
  • slirp4netns – Similar user-mode networking for containers, but passt offers broader protocol support and VM integration
  • QEMU's built-in networking – More complex setup; passt provides simpler standalone operation
Version History
Detected Version Rev Change Commit
Jan 20, 2026 8:41pm 2026_01_20.386b5f5 0 VERSION_BUMP 5ca669df
Jan 17, 2026 5:13pm 2026_01_17.81c97f6 0 VERSION_BUMP 007fb63e
Dec 24, 2025 2:55am 2025_12_15.b40f5cd 0 VERSION_BUMP a4a3b1ee
Dec 15, 2025 9:20pm 0 VERSION_BUMP 2a4c57f4
Dec 15, 2025 12:34pm 0 VERSION_BUMP 3372e540
Dec 10, 2025 2:17pm 2025_12_10.d04c480 0 VERSION_BUMP 9e07871f
Sep 11, 2025 5:42pm 0 VERSION_BUMP 3cc2bba2
Sep 11, 2025 5:15pm 0 VERSION_BUMP 937d30f6
Dec 12, 2024 11:05am 2024_12_11.09478d5 0 VERSION_BUMP 25bb2fdc
Oct 31, 2024 4:24pm 2024_10_30.ee7d0b6 0 VERSION_BUMP 41777c5f
Oct 31, 2024 10:40am 2024_10_30.ee7d0b6 0 VERSION_BUMP 481357c5
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