为什么 wireshark 无法跟踪 wget 数据包？

Question

当我使用wireshark 跟踪tcp 数据包时，它工作正常。但是当我使用 wget 命令时，它无法跟踪。有什么问题吗？

○ → wget http://superuser.com/questions/674605/what-is-type-of-icmp-packets-tcp-or-udp
--2016-10-01 10:50:36--  http://superuser.com/questions/674605/what-is-type-of-icmp-packets-tcp-or-udp
Resolving superuser.com... 151.101.193.69, 151.101.1.69, 151.101.65.69, ...
Connecting to superuser.com|151.101.193.69|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 74235 (72K) [text/html]
Saving to: ‘what-is-type-of-icmp-packets-tcp-or-udp’

what-is-type-of-icmp-packets-tcp-or-udp       100%[==============================================================================================>]  72.50K  37.3KB/s    in 1.9s

2016-10-01 10:50:39 (37.3 KB/s) - ‘what-is-type-of-icmp-packets-tcp-or-udp’ saved [74235/74235]

wireshark 什么也得不到：

Answer 1

我知道了，因为我使用 VPN 导致目标 ip 更改为 VPN 地址。

为什么 wireshark 无法跟踪 wget 数据包？

why wireshark can't track wget packet?

tcp

wireshark