我每秒都会收到一条这样的信息：
457 205.494657 127.0.0.1 127.0.0.1 TCP 68 49507→23454 [SYN] Seq=0 Win=65535 Len=0 MSS=16344 WS=32 TSval=630136859 TSecr=0 SACK_PERM=1
458 205.494702 127.0.0.1 127.0.0.1 TCP 44 23454→49507 [RST, ACK] Seq=1 Ack=1 Win=0 Len=0
每次源端口增加1，目的端口始终为23454
我已经关闭了所有应用程序、关闭了 wifi、没有以太网连接，并尝试关闭应用程序监视器中任何有网络流量的进程。
任何帮助，将不胜感激
Frame 457: 68 bytes on wire (544 bits), 68 bytes captured (544 bits) on interface 0
Interface id: 0 (lo0)
Encapsulation type: NULL/Loopback (15)
Arrival Time: Mar 31, 2017 22:35:17.546056000 EDT
[Time shift for this packet: 0.000000000 seconds]
Epoch Time: 1491014117.546056000 seconds
[Time delta from previous captured frame: 1.066713000 seconds]
[Time delta from previous displayed frame: 0.000000000 seconds]
[Time since reference or first frame: 205.494657000 seconds]
Frame Number: 457
Frame Length: 68 bytes (544 bits)
Capture Length: 68 bytes (544 bits)
[Frame is marked: False]
[Frame is ignored: False]
[Protocols in frame: null:ip:tcp]
[Coloring Rule Name: TCP SYN/FIN]
[Coloring Rule String: tcp.flags & 0x02 || tcp.flags.fin == 1]
Null/Loopback
Family: IP (2)
Internet Protocol Version 4, Src: 127.0.0.1, Dst: 127.0.0.1
0100 .... = Version: 4
.... 0101 = Header Length: 20 bytes (5)
Differentiated Services Field: 0x00 (DSCP: CS0, ECN: Not-ECT)
0000 00.. = Differentiated Services Codepoint: Default (0)
.... ..00 = Explicit Congestion Notification: Not ECN-Capable Transport (0)
Total Length: 64
Identification: 0x061b (1563)
Flags: 0x02 (Don't Fragment)
0... .... = Reserved bit: Not set
.1.. .... = Don't fragment: Set
..0. .... = More fragments: Not set
Fragment offset: 0
Time to live: 64
Protocol: TCP (6)
Header checksum: 0x0000 [validation disabled]
[Header checksum status: Unverified]
Source: 127.0.0.1
Destination: 127.0.0.1