ptunnel ☆
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Description:
Tunnel over ICMP
Type: Formula  |  Tracked Since: Dec 28, 2025
Links: Homepage  |  formulae.brew.sh
Category: Networking
Tags: tunneling icmp firewall networking security
Install: brew install ptunnel
About:
Ptunnel is a utility that forwards TCP connections over ICMP echo request and reply packets. It allows users to bypass firewalls that block standard TCP/UDP ports by tunneling traffic through ICMP, which is often permitted. This provides a stealthy method for accessing remote services when other protocols are restricted.
Key Features:
  • Tunnels TCP connections over ICMP
  • Bypasses restrictive firewalls
  • Stealthy communication channel
  • Supports client and relay modes
Use Cases:
  • Accessing blocked services on restricted networks
  • Creating covert communication channels
  • Bypassing corporate firewall policies
Alternatives:
  • iodine – Tunnels IPv4 over DNS, better for networks with DNS access but no ICMP
  • ssh – Standard encrypted tunneling but uses TCP which may be blocked
Version History
Detected Version Rev Change Commit
Sep 16, 2025 2:57pm 0 VERSION_BUMP e53b523f
Sep 11, 2024 7:17am 0 VERSION_BUMP 79c19f44
Dec 2, 2022 10:34am 0 VERSION_BUMP 93c72bdf
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