Dear all This is not Wireshark problem but hope i can have professional advice about this Strange Tcp RST.
Normal, when recevied un-wanted packet from other sides, device should send TCP RST to other side. But in my case, i see modem sometimes send RST even if not received anything from other sides.
Does anybody knows why modem send Tcp RST packet in this case ? Many thank for your help.
2021-10-28 10:24:23.870773 19.252.11.19 60.192.202.127 TCP 172 37198 → 9000 [PSH, ACK] Seq=1161 Ack=3357 Win=135 Len=98 TSval=1503019263 TSecr=382793032
2021-10-28 10:24:24.115796 60.192.202.127 19.252.11.19 TCP 74 9000 → 37198 [ACK] Seq=3357 Ack=1259 Win=61 Len=0 TSval=382793571 TSecr=1503019263
2021-10-28 10:24:29.527818 19.252.11.19 60.192.202.127 TCP 175 37198 → 9000 [PSH, ACK] Seq=1259 Ack=3357 Win=135 Len=101 TSval=1503020263 TSecr=382793571
2021-10-28 10:24:29.772551 60.192.202.127 19.252.11.19 TCP 74 9000 → 37198 [ACK] Seq=3357 Ack=1360 Win=61 Len=0 TSval=382799228 TSecr=1503020263
2021-10-28 10:24:29.772795 60.192.202.127 19.252.11.19 TCP 150 9000 → 37198 [PSH, ACK] Seq=3357 Ack=1360 Win=61 Len=76 TSval=382799228 TSecr=1503020263
2021-10-28 10:24:29.775763 19.252.11.19 60.192.202.127 TCP 74 37198 → 9000 [ACK] Seq=1360 Ack=3433 Win=135 Len=0 TSval=1503020512 TSecr=382799228
2021-10-28 10:24:34.541725 19.252.11.19 60.192.202.127 TCP 74 37198 → 9000 [RST, ACK] Seq=1360 Ack=3433 Win=135 Len=0 TSval=1503025264 TSecr=382799228