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@ -8,7 +8,7 @@ The idea is to try out a sequence of well known hole punching techniques until o
- [SYNI](https://www.uni-kassel.de/eecs/fileadmin/datas/fb16/Fachgebiete/UC/papers/HWW_11-SYNI.pdf) (TCP hole punching based on SYN injection), DOI: 10.1109/NCA.2011.66
- [NUTSS](https://www.cs.cornell.edu/people/francis/nutss-fdna.pdf) (TCP hole punching, the non-spoofing approach described in section 4.2.2 of the paper), DOI: 10.1145/1016707.1016715
The assumption of those techniques is that there is a side-channel (i.e. a rendezvous server) between the two hosts. A peer that wants to be available for hole punching needs to constantly be connected to the rendezvous server so it can be notified by other peers about new hole punching attempts. Also it needs to provide an endpoint (public IP address and port) to other peers before those can initiate the hole punching. See the example applications for a naive rendezvous server implementation.
The assumption of those techniques is that there is a side-channel (i.e. a rendezvous server) between the two hosts. A peer that wants to be available for hole punching needs to constantly be connected to the rendezvous server so it can be notified by other peers about new hole punching attempts. In addition it needs to provide an endpoint (public IP address and port) to other peers before those can initiate the hole punching. See the example applications for a naive rendezvous server implementation.
# How can I use punchd?