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IP over audio tunnel
Home Page: http://d00m.org/~someone/dsptunnel/
License: GNU General Public License v3.0
This project forked from 50m30n3/dsptunnel
IP over audio tunnel
Home Page: http://d00m.org/~someone/dsptunnel/
License: GNU General Public License v3.0
dsptunnel v.1.0 by 50m30n3 2011 Ever wanted to relive the carefree days of slow-as-fuck Internet? Miss the days of aborted downloads and half loaded porn images? Fret no more, your day has come! Using dsptunnel you can now surf the Internet at the blazing fast speed of nearly 3000 bytes per second. Thats almost 24 kilobits per second. And its full duplex! All you need are two computers with sound cards. Connect the line-out of your first machine with the line-in of your second machine and the line-out of your second machine with the line-in of the first. Set your levels so you get a loud and clear signal on both ends. Unity gain is best, so both playback and recording should be set to 0db. Also, you'll need a stereo link, otherwise it won't work since this baby uses differential signaling, if you know what I'm talking about. Now you need to create the TUNnel devices on both machines. As root on both machines: # ip tuntap add dev tun0 mode tun user <your user> group <your group> # ifconfig tun0 up As root on machine 1: # ifconfig tun0 10.0.0.1 # ifconfig tun0 pointopoint 10.0.0.2 As root on machine 2: # ifconfig tun0 10.0.0.2 # ifconfig tun0 pointopoint 10.0.0.1 Don't forget to put in your user name and group so dsptunnel can access the tunnel device without running as root (which would be a bad thing). Feel free to replace the IPs with addresses of your choice (yay, FREEDOM). Now simply run dsptunnel. If you don't have OSS run it using an OSS wrapper like aoss or padsp. Now ping the other machine. Now set up routing and enjoy your new slow Internet. And you can even listen to the bits. If you have a really good sound card that supports 96khz sample rate you can start dsptunnel with "-s 96000" to make use of it. If you get trasmission errors you can increase the bit length using the -b option. -t sets the name of the TUN device. -d sets the name of the dsp device. This software is licensed under the GNU GPL V3. See LICENSE for details. Send bugreports and questions to [email protected].
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