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by gzread
100 days ago
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All you should need is for both sides to connect to each other. Side A connecting to side B opens a hole in side A's firewall and is blocked by side B, then B connects to A, opening B's firewall and going through the already open hole in A's firewall. It might work better with UDP but I don't think those firewalls boxes tear down the mapping immediately on getting an RST - they wait until it times out. |
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