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Hi Unitiger,

Check for these things --

  1. Have you enabled br-ex. in /etc/neutron/l3_agent.ini external_network_bridge = br-ex

  2. Check from VM -- ping -- should work ping -- gateway ping -- router gateway Traceroute -- Path should be same traceroute -- Path should be same.

Most probably your network node is not passing on traffic further. In that case traceroute will not go further If that is the case your network node is not doing IP forwarding. If so see the guide how to enable it -- /etc/sysctl.conf net.ipv4.ip_forward=1 net.ipv4.conf.all.rp_filter=0 net.ipv4.conf.default.rp_filter=0

sysctl -p Please let me know if you are still facing issue.

Regards Rahul1603