Re: neutron's OVS based VXLAN seems to be unable to access the network

Confirm that the communication anomaly is caused by the UFW firewall of the Ubuntu system. There are several ways to solve communication anomalies. 1. Check if the ICMP, TCP, and UDP entrances and exits of the security group in OpenStack are open 2. Vxlan communication abnormalities caused by network card issues in openstack 3. Incorrect firewall strategy !!! The above operations are only for experimental or testing purposes. If in a production environment, it is necessary to adjust to the appropriate rules!!!! Also, how can the UFW firewall be configured in this situation? (I just closed it, I think it's not safe) What about the security group? Thank you Brian Haley for your help!