David Woodhouse <dwmw2 <at> infradead.org> writes: > > Oops, please git pull and try again. > Ok, so with updated main.c I moved a bit. Windows client is able to authenticate, even get configuration so tunnel looks to be up but packets do not flow. With --verbose everything looks same (of course except TAP driver and vpnc-script-win output) till end of message "ESP session established with server" where Linux client just repeating "Send ESP probes for DPD" but Windows client repeating following discard: Discarding replayed ESP packet with seq 1 Discarding replayed ESP packet with seq 2 0000: 21 00 00 00 00 00 00 00 01 2f 01 00 00 00 01 00 0010: 00 00 00 00 00 0d 00 06 00 00 00 07 00 01 00 00 0020: 00 01 01 Send ESP probes for DPD Discarding replayed ESP packet with seq 3 Discarding replayed ESP packet with seq 4 Send ESP probes for DPD Discarding replayed ESP packet with seq 5 Discarding replayed ESP packet with seq 6 Send ESP probes for DPD Discarding replayed ESP packet with seq 7 Discarding replayed ESP packet with seq 8 Send ESP probes for DPD Discarding replayed ESP packet with seq 9 As environment is same and with Linux packet flow is ok (can ping host over tunnel) I assume that there is another "difference"... If needed I can provide more info/debug... -- O.