176 7.199184 192.168.0.71 192.168.0.19 TCP ltp-deepspace > asa-appl-proto [SYN] Seq=0 Win=65535 Len=0 MSS=1460 SACK_PERM=1 177 7.199946 192.168.0.19 192.168.0.71 TCP asa-appl-proto > ltp-deepspace [SYN, ACK] Seq=0 Ack=1 Win=16000 Len=0 MSS=1460 178 7.199961 192.168.0.71 192.168.0.19 TCP ltp-deepspace > asa-appl-proto [ACK] Seq=1 Ack=1 Win=65535 Len=0 179 7.200073 192.168.0.71 192.168.0.19 Modbus/TCP query [ 1 pkt(s)]: trans: 1; unit: 0, func: 3: Read multiple registers. 180 7.202130 192.168.0.19 192.168.0.71 Modbus/TCP response [ 1 pkt(s)]: trans: 1; unit: 0, func: 3: Read multiple registers. 181 7.202255 192.168.0.71 192.168.0.19 TCP ltp-deepspace > asa-appl-proto [FIN, ACK] Seq=13 Ack=12 Win=65524 Len=0 185 7.202794 192.168.0.19 192.168.0.71 TCP [TCP ZeroWindow] asa-appl-proto > ltp-deepspace [ACK] Seq=12 Ack=14 Win=0 Len=0 196 7.203626 192.168.0.19 192.168.0.71 TCP asa-appl-proto > ltp-deepspace [FIN, ACK] Seq=12 Ack=14 Win=0 Len=0 197 7.203636 192.168.0.71 192.168.0.19 TCP ltp-deepspace > asa-appl-proto [ACK] Seq=14 Ack=13 Win=65524 Len=0