@
dbg ![image]( https://i.111666.best/image/hzKLeLA9PxPoCiSZpkhN55.png)
```bash
[root@localhost ~]# tcpdump -i any icmp
tcpdump: data link type LINUX_SLL2
dropped privs to tcpdump
tcpdump: verbose output suppressed, use -v[v]... for full protocol decode
listening on any, link-type LINUX_SLL2 (Linux cooked v2), snapshot length 262144 bytes
14:14:58.472873 eth0 Out IP localhost.localdomain > 20.205.243.166: ICMP echo request, id 5, seq 1, length 64
14:14:58.581189 eth0 In IP 20.205.243.166 > localhost.localdomain: ICMP echo reply, id 5, seq 1, length 64
14:14:59.474350 eth0 Out IP localhost.localdomain > 20.205.243.166: ICMP echo request, id 5, seq 2, length 64
14:14:59.582625 eth0 In IP 20.205.243.166 > localhost.localdomain: ICMP echo reply, id 5, seq 2, length 64
14:15:00.475622 eth0 Out IP localhost.localdomain > 20.205.243.166: ICMP echo request, id 5, seq 3, length 64
14:15:00.571066 eth0 In IP 20.205.243.166 > localhost.localdomain: ICMP echo reply, id 5, seq 3, length 64
14:15:01.477195 eth0 Out IP localhost.localdomain > 20.205.243.166: ICMP echo request, id 5, seq 4, length 64
14:15:01.583919 eth0 In IP 20.205.243.166 > localhost.localdomain: ICMP echo reply, id 5, seq 4, length 64
```
```bash
[microcharon@localhost ~]$ ping
github.comPING
github.com (20.205.243.166) 56(84) 比特的数据。
64 比特,来自 20.205.243.166 (20.205.243.166): icmp_seq=1 ttl=108 时间=108 毫秒
64 比特,来自 20.205.243.166 (20.205.243.166): icmp_seq=2 ttl=108 时间=108 毫秒
64 比特,来自 20.205.243.166 (20.205.243.166): icmp_seq=3 ttl=108 时间=95.5 毫秒
64 比特,来自 20.205.243.166 (20.205.243.166): icmp_seq=4 ttl=108 时间=107 毫秒
^C
---
github.com ping 统计 ---
已发送 4 个包, 已接收 4 个包, 0% packet loss, time 3004ms
rtt min/avg/max/mdev = 95.482/104.727/108.349/5.375 ms
```
关闭这个 Hyper-V 可扩展的虚拟交换机就好了,这是怎么回事