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Red Hat Bugzilla – Attachment 697119 Details for
Bug 911005
Instance doesn't get DHCP offer when using nova network with VLAN manager
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VLAN
file_911005.txt (text/plain), 4.75 KB, created by
Ofer Blaut
on 2013-02-14 08:08:13 UTC
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Description:
VLAN
Filename:
MIME Type:
Creator:
Ofer Blaut
Created:
2013-02-14 08:08:13 UTC
Size:
4.75 KB
patch
obsolete
> >1. Sniffing on VLAN 191 - br191 >tcpdump -i br191 >tcpdump: verbose output suppressed, use -v or -vv for full protocol decode >listening on br191, link-type EN10MB (Ethernet), capture size 65535 bytes >13:34:43.070789 IP dhcp176-101.scl.lab.tlv.redhat.com > pim-routers.mcast.net: PIMv2, Hello, length 44 >13:34:46.130386 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from fa:16:3e:27:ff:ed (oui Unknown), length 300 >13:34:51.017501 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from fa:16:3e:27:ff:ed (oui Unknown), length 300 >13:34:52.761443 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from fa:16:3e:19:b2:4c (oui Unknown), length 300 >13:34:57.314356 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from fa:16:3e:27:ff:ed (oui Unknown), length 300 >13:35:10.066608 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from fa:16:3e:27:ff:ed (oui Unknown), length 300 >13:35:11.001705 IP dhcp176-101.scl.lab.tlv.redhat.com > pim-routers.mcast.net: PIMv2, Hello, length 44 >13:35:14.772215 IP dhcp176-101.scl.lab.tlv.redhat.com > all-systems.mcast.net: igmp query v2 >13:35:19.196042 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from fa:16:3e:27:ff:ed (oui Unknown), length 300 >13:35:34.783555 ARP, Request who-has dhcp176-200.scl.lab.tlv.redhat.com tell dhcp176-5.scl.lab.tlv.redhat.com, length 42 >13:35:34.783598 ARP, Reply dhcp176-200.scl.lab.tlv.redhat.com is-at 00:9c:02:b0:7f:e4 (oui Unknown), length 28 > > >2. DHCP listen on all ips ? bug or feature ? there is also DNS , why ? > >root@puma04 ~]# netstat -nlp | grep dns >tcp 0 0 10.35.176.200:53 0.0.0.0:* LISTEN 3539/dnsmasq >tcp 0 0 192.168.122.1:53 0.0.0.0:* LISTEN 2394/dnsmasq >udp 0 0 10.35.176.200:53 0.0.0.0:* 3539/dnsmasq >udp 0 0 192.168.122.1:53 0.0.0.0:* 2394/dnsmasq >udp 0 0 0.0.0.0:67 0.0.0.0:* 3539/dnsmasq >udp 0 0 0.0.0.0:67 0.0.0.0:* 2394/dnsmasq > >3. DHCP process > >[root@puma04 ~]# ps aux | grep dns >nobody 2394 0.0 0.0 12884 724 ? S 11:56 0:00 /usr/sbin/dnsmasq --strict-order --local=// --domain-needed --pid-file=/var/run/libvirt/network/default.pid --conf-file= --except-interface lo --bind-interfaces --listen-address 192.168.122.1 --dhcp-range 192.168.122.2,192.168.122.254 --dhcp-leasefile=/var/lib/libvirt/dnsmasq/default.leases --dhcp-lease-max=253 --dhcp-no-override --dhcp-hostsfile=/var/lib/libvirt/dnsmasq/default.hostsfile --addn-hosts=/var/lib/libvirt/dnsmasq/default.addnhosts >nobody 3539 0.0 0.0 12880 752 ? S 11:56 0:00 /usr/sbin/dnsmasq --strict-order --bind-interfaces --conf-file= --domain=novalocal --pid-file=/var/lib/nova/networks/nova-br191.pid --listen-address=10.35.176.200 --except-interface=lo --dhcp-range=set:'net_vlan_191',10.35.176.3,static,120s --dhcp-lease-max=256 --dhcp-hostsfile=/var/lib/nova/networks/nova-br191.conf --dhcp-script=/usr/bin/nova-dhcpbridge --leasefile-ro >root 3540 0.0 0.0 12880 204 ? S 11:56 0:00 /usr/sbin/dnsmasq --strict-order --bind-interfaces --conf-file= --domain=novalocal --pid-file=/var/lib/nova/networks/nova-br191.pid --listen-address=10.35.176.200 --except-interface=lo --dhcp-range=set:'net_vlan_191',10.35.176.3,static,120s --dhcp-lease-max=256 --dhcp-hostsfile=/var/lib/nova/networks/nova-br191.conf --dhcp-script=/usr/bin/nova-dhcpbridge --leasefile-ro >root 7352 0.0 0.0 103248 856 pts/0 S+ 14:09 0:00 grep dn > >4. from /var/log/message > >Feb 12 14:06:09 puma04 dnsmasq-dhcp[3539]: DHCPDISCOVER(br191) fa:16:3e:19:80:c0 no address available >Feb 12 14:06:13 puma04 dnsmasq-dhcp[3539]: DHCPDISCOVER(br191) fa:16:3e:19:80:c0 no address available >Feb 12 14:06:13 puma04 dnsmasq-dhcp[3539]: DHCPDISCOVER(br191) fa:16:3e:27:ff:ed no address available >Feb 12 14:06:23 puma04 dnsmasq-dhcp[3539]: DHCPDISCOVER(br191) fa:16:3e:19:b2:4c no address available >Feb 12 14:06:24 puma04 dnsmasq-dhcp[3539]: DHCPDISCOVER(br191) fa:16:3e:27:ff:ed no address available >Feb 12 14:06:24 puma04 dnsmasq-dhcp[3539]: DHCPDISCOVER(br191) fa:16:3e:19:80:c0 no address available >Feb 12 14:06:26 puma04 dnsmasq-dhcp[3539]: DHCPDISCOVER(br191) fa:16:3e:28:ec:14 no address available >Feb 12 14:06:31 puma04 dnsmasq-dhcp[3539]: DHCPDISCOVER(br191) fa:16:3e:19:b2:4c no address available > > >5. I have tried to remove bridge and dnsmasq - https://bugs.launchpad.net/nova/+bug/958593 >also looked at http://www.mail-archive.com/openstack@lists.launchpad.net/msg11561.html >
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