Open Stack

Hi guys:


I have openstack Liberty(linuxbridge + vxlan) installed, and the vm could not get IP from dhcp server. 


Troubleshooting: 
Using tcpdump can get dhcp discover packet on physical NIC on network node, but can't get it on vxlan port(vxlan-100) on network node.
In opposite direction, Sending arp broadcast  in dhcp namespace, and we can get packet on vxlan port(vxlan-100) but can't get packet on physical NIC.


However, we find port 8472 is being listened. Meanwhile all interfaces(vxlan-100, physical NIC) are up and running.


What could be the reason for the issue? Any comments are appreciated.


BR,
Jingting
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