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Set DF bit for TCP handshake.#13108

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copybara-service[bot] merged 1 commit into
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test/cl911628101
May 11, 2026
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Set DF bit for TCP handshake.#13108
copybara-service[bot] merged 1 commit into
masterfrom
test/cl911628101

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Set DF bit for TCP handshake.

Linux sets DF bit for all the TCP packets including initial SYN. gVisor was
setting DF bit only for packets after the connection was established. This
changes fixes it by setting DF bit for packets during initial handshake.

@copybara-service copybara-service Bot added the exported Issue was exported automatically label May 7, 2026
@copybara-service copybara-service Bot force-pushed the test/cl911628101 branch 9 times, most recently from 12ac9d0 to a07ce37 Compare May 11, 2026 16:45
Linux sets DF bit for all the TCP packets including initial SYN. gVisor was
setting DF bit only for packets after the connection was established. This
changes fixes it by setting DF bit for packets during initial handshake.

PiperOrigin-RevId: 913764208
@copybara-service copybara-service Bot merged commit d281a82 into master May 11, 2026
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@copybara-service copybara-service Bot deleted the test/cl911628101 branch May 11, 2026 17:23
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