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About CeeJay.dk

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  1. @ arvid: Would it be possible to do for one (A) to do holepunching without a thirdparty , by spoofing the IP of a thirdparty © that you know most likely already have an established connection to the party you wish to contact ( , and sending them a packet containing your real IP ? F.x say we know B probably has a hole through his NAT to talk with his DNS server or the tracker or any other IP we know or can guesstimate B is talking to. A (sends packet using C's spoofed IP containing real IP as payload) -> A's NAT (opens hole to -> B's NAT (through open hole for C) -> B (recognises special packet containing request to contact A) B -> B's NAT (opens hole to A) -> A's NAT (through previously opened hole) -> A