OVS doesn't forward packets from tap-device to br-int
Hi all,
I'm really stuck with my network-setup. I'm using quantum with OVS-plugin. After installation everything worked so far. But after reboot it doesn't any more. I can't reach instance IPs since then. So I followed the packets from compute node to network node and could figure out where it breaks.
From compute-node I can see DHCP packets start their journey:
root@compute1:~# tcpdump -nn -i br-int tcpdump: WARNING: br-int: no IPv4 address assigned tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on br-int, link-type EN10MB (Ethernet), capture size 65535 bytes 19:41:15.067727 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from fa:16:3e:4a:33:9d, length 286 19:41:18.070965 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from fa:16:3e:4a:33:9d, length 286 19:41:22.588759 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from fa:16:3e:c4:29:fa, length 300
Those packets also make it to the network-node...
root@network:~# tcpdump -nn -i br-int tcpdump: WARNING: br-int: no IPv4 address assigned tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on br-int, link-type EN10MB (Ethernet), capture size 65535 bytes 19:43:11.132307 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from fa:16:3e:4a:33:9d, length 286 19:43:14.135490 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from fa:16:3e:4a:33:9d, length 286 19:43:17.434270 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from fa:16:3e:c4:29:fa, length 300
...and even get to tap66178edc-18 device that is configured for dhcp. As I can see the dhcp-server also answers the dhcp-request:
root@network:~# tcpdump -nn -i tap66178edc-18 tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on tap66178edc-18, link-type EN10MB (Ethernet), capture size 65535 bytes 19:44:20.399708 ARP, Request who-has 10.5.5.3 tell 10.5.5.2, length 28 19:44:21.399712 ARP, Request who-has 10.5.5.3 tell 10.5.5.2, length 28 19:44:22.403720 ARP, Request who-has 10.5.5.3 tell 10.5.5.2, length 28 19:44:27.684714 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from fa:16:3e:c4:29:fa, length 300 19:44:27.685000 IP 10.5.5.2.67 > 10.5.5.3.68: BOOTP/DHCP, Reply, length 308 19:44:32.687714 ARP, Request who-has 10.5.5.3 tell 10.5.5.2, length 28 19:44:33.687725 ARP, Request who-has 10.5.5.3 tell 10.5.5.2, length 28 19:44:34.687720 ARP, Request who-has 10.5 ...