Comment 25 for bug 1457478

On VirtualBox

[root@node-17 ~]# tcpdump -pnevvi eth0 vlan
tcpdump: WARNING: eth0: no IPv4 address assigned
tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes
12:58:03.237708 fa:16:3e:b8:f7:86 > Broadcast, ethertype 802.1Q (0x8100), length 46: vlan 1030, p 0, ethertype ARP,
 Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.111.1 tell 192.168.111.2, length 28
12:58:04.237069 fa:16:3e:b8:f7:86 > Broadcast, ethertype 802.1Q (0x8100), length 46: vlan 1030, p 0, ethertype ARP,
 Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.111.1 tell 192.168.111.2, length 28

[root@node-17 ~]# tcpdump -pnevvi eth0 vlan
tcpdump: WARNING: eth0: no IPv4 address assigned
tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes
12:58:03.237708 fa:16:3e:b8:f7:86 > Broadcast, ethertype 802.1Q (0x8100), length 46: vlan 1030, p 0, ethertype ARP,
 Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.111.1 tell 192.168.111.2, length 28
12:58:04.237069 fa:16:3e:b8:f7:86 > Broadcast, ethertype 802.1Q (0x8100), length 46: vlan 1030, p 0, ethertype ARP,
 Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.111.1 tell 192.168.111.2, length 28
12:58:05.252938 fa:16:3e:b8:f7:86 > Broadcast, ethertype 802.1Q (0x8100), length 46: vlan 1030, p 0, ethertype ARP,
 Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.111.1 tell 192.168.111.2, length 28

on node-16 where is 192.168.111.2

[root@node-15 ~]# ip netns exec qdhcp-87c14191-4621-44bc-9290-4243c1457b36 ip a
39: tap63298197-85: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN
    link/ether fa:16:3e:b8:f7:86 brd ff:ff:ff:ff:ff:ff
    inet 192.168.111.2/24 brd 192.168.111.255 scope global tap63298197-85
    inet6 fe80::f816:3eff:feb8:f786/64 scope link
       valid_lft forever preferred_lft forever
40: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
[root@node-15 ~]# tcpdump -pnevvvi eth0 vlan
tcpdump: WARNING: eth0: no IPv4 address assigned
tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes

On host machine we see that all is ok with traffic from node-17

root@anastasia-X9SRE-X9SRE-3F-X9SRi-X9SRi-3F:~# tcpdump -pnevvvvi vboxnet0 host 192.168.111.1
tcpdump: listening on vboxnet0, link-type EN10MB (Ethernet), capture size 65535 bytes
16:00:49.122187 fa:16:3e:b8:f7:86 > ff:ff:ff:ff:ff:ff, ethertype 802.1Q (0x8100), length 46: vlan 1030, p 0, ethertype ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.111.1 tell 192.168.111.2, length 28
16:00:50.123088 fa:16:3e:b8:f7:86 > ff:ff:ff:ff:ff:ff, ethertype 802.1Q (0x8100), length 46: vlan 1030, p 0, ethertype ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.111.1 tell 192.168.111.2, length 28

Looks like traffic does not go to node-15 at all
host machine blocks this traffic
This traffic is tagged by OpenVswitch

if we create vlan network inrefaces on this nodes -- all is ok, traffic goes
Hense we have the problem with tagged traffic fom OpenVswitch