所做的使用macvlan网络不同host不同vlan上的docker主机之间通信实验内容如下网址所示https://www.cnblogs.com/CloudMan6/p/7400580.html
使用了一个物理主机作为虚拟路由器，确认了net.ipv4.ip_forwad = 1，添加了两块vlan虚拟网口.10和.20（vboxnet0.10和vboxnet0.20），并且如实验内容所示设置了iptables规则。两个虚拟机上都添加了一块host-only网卡并设置了混杂模式为全部允许。最后用host2上的容器bbox4（172.16.20.11）去ping另一个host上的bbox1（172.16.10.10）时发现ping不同。通过tcpdump在物理主机上监视网口vboxnet0.10和vboxnet0.20时监视到了ping的request请求但是没有回复，如下所示
tcpdump -i vboxnet0.10
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on vboxnet0.10, link-type EN10MB (Ethernet), capture size 262144 bytes
16:50:21.695134 IP 172.16.10.1 > 172.16.10.10: ICMP echo request, id 22016, seq 0, length 64
16:50:22.696067 IP 172.16.10.1 > 172.16.10.10: ICMP echo request, id 22016, seq 1, length 64
16:50:23.697093 IP 172.16.10.1 > 172.16.10.10: ICMP echo request, id 22016, seq 2, length 64
16:50:24.698213 IP 172.16.10.1 > 172.16.10.10: ICMP echo request, id 22016, seq 3, length 64
16:50:26.695480 ARP, Request who-has 172.16.10.10 tell 172.16.10.1, length 28
16:50:26.696233 ARP, Reply 172.16.10.10 is-at 02:42:ac:10:0a:0a (oui Unknown), length 46
tcpdump -i vboxnet0.20
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on vboxnet0.20, link-type EN10MB (Ethernet), capture size 262144 bytes
16:52:02.183159 IP 172.16.20.11 > 172.16.10.10: ICMP echo request, id 23296, seq 0, length 64
16:52:03.183624 IP 172.16.20.11 > 172.16.10.10: ICMP echo request, id 23296, seq 1, length 64
16:52:04.184620 IP 172.16.20.11 > 172.16.10.10: ICMP echo request, id 23296, seq 2, length 64
16:52:05.185323 IP 172.16.20.11 > 172.16.10.10: ICMP echo request, id 23296, seq 3, length 64
16:52:07.191131 ARP, Request who-has 172.16.20.1 tell 172.16.20.11, length 46
16:52:07.191146 ARP, Reply 172.16.20.1 is-at 0a:00:27:00:00:00 (oui Unknown), length 28
请问有没有大神帮忙看看问题可能出在哪儿？（实验步骤完全按照https://www.cnblogs.com/CloudMan6/p/7400580.html）
