For reference, it seems like devstack running on 3.3 or later kernel will see this. I found it running on quantal:
<adam_g> smoser: devstack doesn't configure its networks as multi_host. my fix only addresses the issue for multi_host networks, where its assumed the dhcp server is alwasy running on the same host as compute <adam_g> smoser: devstack that just happens to be the case, but its not multihost <adam_g> smoser: anyway, the workaround is to jus rmmod vhost_net or add the iptables mangle rule described in that bug So specifically for devstack: rmmod vhost_net or [ -e /dev/vhost-net ] && sudo iptables -t mangle -A POSTROUTING -o br100 -p udp -m udp --dport 68 -j CHECKSUM --checksum-fill -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to nova in Ubuntu. https://bugs.launchpad.net/bugs/1029430 Title: KVM guests networking issues with no virbr0 and with vhost_net kernel modules loaded To manage notifications about this bug go to: https://bugs.launchpad.net/cloud-archive/+bug/1029430/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs