Attachment 697119 Details for Bug 911005 – VLAN

VLAN

file_911005.txt (text/plain), 4.75 KB, created by Ofer Blaut on 2013-02-14 08:08:13 UTC

(hide)

Description:

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
>

Actions: View

Attachments on bug 911005: 697119