Ping Tunnel 0.72

A tool for reliably tunneling TCP connections over ICMP echo request.
Ping Tunnel
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Ptunnel is an application that allows you to reliably tunnel TCP connections to a remote host using ICMP echo request and reply packets, commonly known as ping requests and replies. At first glance, this might seem like a rather useless thing to do, but it can actually come in your help in some cases.

Setting: You're on the go, and stumble across an open wireless network. The network gives you an IP address, but won't let you send TCP or UDP packets out to the rest of the internet, for instance to check your mail. What to do? By chance, you discover that the network will allow you to ping any computer on the rest of the internet. With ptunnel, you can utilize this feature to check your mail, or do other things that require TCP.

Main features:

  • Tunnel TCP using ICMP echo request and reply packets
  • Connections are reliable (lost packets are resent as necessary)
  • Handles multiple connections
  • Acceptable bandwidth (150 kb/s downstream and about 50 kb/s upstream are the currently measured maximas for one tunnel, but with tweaking this can be improved further)
  • Authentication, to prevent just anyone from using your proxy

last updated on:
September 5th, 2011, 12:57 GMT
license type:
BSD License 
developed by:
Daniel Stødle
ROOT \ System \ Networking
Ping Tunnel
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What's New in This Release:
  • Fixes an authentication bug that would manifest as hung connections with protocols that send data from the client-side before receiving data from the server-side. Thanks to StalkR for locating the bug and fixing it.
  • Fixes a crash when attempting to enable packet-capture for non-existing network devices. Thanks to Steffen Wendzel for the patch.
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