[p2p-hackers] ICMP tunneling

Alex Pankratov ap at hamachi.cc
Mon Jun 19 18:26:03 UTC 2006


 > Alex (pankratov), do you have any experience with Hamachi on this tip?

No, not with Hamachi. Implementing ICMP tunneling on Windows
requires writing NDIS/IM driver or an equivalent and it is an
absolutely royal pain in the butt to support. In other words
it is somewhat hard to justify :)

Alex

Travis Kalanick wrote:
> Doing a bunch of traveling recently in Asia (adventures blogged here: 
> http://blog.redswoosh.net <http://blog.redswoosh.net/>), I’ve found 
> myself in many situations where I’ve had to purchase wireless Internet 
> access, quite often at double or triple the prices seen in the States.
> 
>  
> 
> Before paying however, I am almost always able to do a DNS look-up and 
> sometimes even ping remote hosts, though normal Internet traffic over 
> port 80 (and various other ports) is blocked.
> 
>  
> 
> It got me to thinking about ICMP tunneling around these wireless “toll 
> booths” so I could travel Asia and even the states without having to 
> communicate over those popular ports that cost money to communicate over.
> 
>  
> 
> Maybe something could be coded up to tunnel over ICMP to a proxy server 
> (or proxy peer), that then translates communication back to the intended 
> protocol and port and forwards communication along.  It seems that at 
> least theoretically, with raw sockets and promiscuous settings, even on 
> Windows machines, this should be possible.
> 
>  
> 
> Anybody have experience with tunneling over this widespread, but often 
> forgotten protocol and port?  Could it also be useful for NAT traversal 
> in extreme conditions? 
> 
>  
> 
> Alex (pankratov), do you have any experience with Hamachi on this tip?
> 
>  
> 
> T
> 
>  
> 
>  
> 
> Travis Kalanick
> Red Swoosh, Inc.
> 
> Blog – http://blog.redswoosh.net <http://blog.redswoosh.net/>
> 
> High quality video without bandwidth costs!
> 
> www.redswoosh.net
> 
>  
> 
> 
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> 
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