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There is a scenario called “simultaneous open”, which has 4 packets handshake and is a wonderful source of corner cases and debugging. Mostly doesn’t happen the
by ay 2y ago
There is a scenario called “simultaneous open”, which has 4 packets handshake and is a wonderful source of corner cases and debugging. Mostly doesn’t happen these days, but is possible by standard and is explicitly described.
- winternewt 2y agoIt has been used for NAT traversal when both parties are behind NAT, but sadly it doesn't work with all routers.