Just to further add to comment #6, That this is not a neutron issue, Here is the tcpdump output of the guests tap device shows the dhcp request leaving and the reply coming back. For anyways that may be curious.
Guest MAC:
<interface type='bridge'> <mac address='fa:16:3e:1d:a8:82'/> <source bridge='qbrc8faaf66-7f'/> <target dev='tapc8faaf66-7f'/> <model type='virtio'/> <address type='virtio-mmio'/> </interface>
$ sudo ip netns exec qdhcp-a9958ab4-8a7e-4ded-b9a0-860bc42f79d9 tcpdump -A -l -i ns-c751afb3-2b tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on ns-c751afb3-2b, link-type EN10MB (Ethernet), capture size 262144 bytes 13:51:11.458941 IP6 :: > ff02::16: HBH ICMP6, multicast listener report v2, 1 group record(s), length 28 `....$..................................:................................... 13:51:11.462966 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from fa:16:3e:1d:a8:82 (oui Unknown), length 300 E..H......9..........D.C.4q.....5QN{......................>.............................................................................................................................................................................................................c.Sc5....ubuntu7.......w.,/.y*.................................. 13:51:11.463331 IP 10.5.5.2.bootps > 10.5.5.9.bootpc: BOOTP/DHCP, Reply, length 328 E..dY'..@...
Just to further add to comment #6, That this is not a neutron issue, Here is the tcpdump output of the guests tap device shows the dhcp request leaving and the reply coming back. For anyways that may be curious.
Guest MAC:
<interface type='bridge'> 'fa:16: 3e:1d:a8: 82'/> 'qbrc8faaf66- 7f'/> 6-7f'/> mmio'/>
<mac address=
<source bridge=
<target dev='tapc8faaf6
<model type='virtio'/>
<address type='virtio-
</interface>
$ sudo ip netns exec qdhcp-a9958ab4- 8a7e-4ded- b9a0-860bc42f79 d9 tcpdump -A -l -i ns-c751afb3-2b ....... ....... ....... ....... .....:. ....... ....... ....... ....... ...... 255.255. bootps: BOOTP/DHCP, Request from fa:16:3e:1d:a8:82 (oui Unknown), length 300 ...9... ....... D.C.4q. ....5QN{ ....... ....... ....... .>..... ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... ....c.Sc5. ...ubuntu7. ......w. ,/.y*.. ....... ....... ....... ....... ....
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on ns-c751afb3-2b, link-type EN10MB (Ethernet), capture size 262144 bytes
13:51:11.458941 IP6 :: > ff02::16: HBH ICMP6, multicast listener report v2, 1 group record(s), length 28
`....$.
13:51:11.462966 IP 0.0.0.0.bootpc > 255.255.
E..H...
13:51:11.463331 IP 10.5.5.2.bootps > 10.5.5.9.bootpc: BOOTP/DHCP, Reply, length 328
E..dY'..@...