Restrict relay to internet2
than at cmu.edu
Mon Jan 7 22:02:34 UTC 2008
I run a tor relay node (no exits) on my school's network. Due to their
bandwidth policy, I have to limit traffic to about 1 Gb per day. Weak,
HOWEVER, my school is also connected to the Abilene/Internet2 backbone,
and they DON'T limit bandwidth usage over Internet2!
Internet2 is set up such that it is transparent to my computer, but I've
hacked together a simple script that uses traceroute to figure out if
traffic between my machine and another host is going over Internet2.
So I can scan through the directory of Tor nodes with my script, and
find which ones are on I2.
The final part of my scheme would require that I be able to restrict my
tor node to ONLY relay traffic to/from I2 nodes. I can't figure out how
to do this.
Anyone have an idea for how to pull this off? It seems to me that I
could do it with a lot of hairy routing rules, but this would be bad
because I'd be breaking circuits all the time.
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