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by zx2c4
2556 days ago
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For an even cooler trick, check out pwnat, also from Samy: https://samy.pl/pwnat/ Server sends constant icmp pings with fixed payload to unreachable dead Internet IP. Client sends icmp time exceeded message to server containing original fixed ping subpayload, which the server NAT lets through because the payloads match as related traffic. Server then learns client IP and usual chownat udp hole punching tricks apply. |
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