I just upgraded to 12.04. As the machine boots, it seems to connect to the network since I can ping to IPs, however it cannot resolve DNS. In other words if I do "ping google.com" it would say "unknown host google.com". Please let me know what kind of specific information you may need.
Thanks, Daniel On Wed, 2012-03-07 at 18:32 +0000, Stéphane Graber wrote: > I'm starting to run out of idea here... > I just tried with the following configuration Ubuntu 12.04: > - 6 network cards > - 3 configured as you do in your /etc/network/interfaces > - 3 not mentioned at all in /etc/network/interfaces > - br0 with static IP and bridge-ports all > > Can you try your configuration with Ubuntu 12.04 beta1 (or later, > running updates) and ideally in a VM so we can ensure we have the exact > same setup. > > I had a very quick look at ebtables, at least in 12.04 it doesn't seem > to contain a postinst, config or a debconf templates, so dpkg- > reconfigure should be a no-op here, however it does contain an init > script that could impact the system. > > Result is: > --- > root@stgraber-vm:~# brctl show > bridge name bridge id STP enabled interfaces > br0 8000.52540017bb0d no eth0 > eth1 > eth2 > eth3 > eth4 > eth5 > root@stgraber-vm:~# ifconfig > br0 Link encap:Ethernet HWaddr 52:54:00:17:bb:0d > inet addr:172.23.0.50 Bcast:0.0.0.0 Mask:255.255.255.0 > inet6 addr: fe80::5054:ff:fe17:bb0d/64 Scope:Link > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:21859 errors:0 dropped:0 overruns:0 frame:0 > TX packets:44 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:0 > RX bytes:1086706 (1.0 MB) TX bytes:8477 (8.4 KB) > > eth0 Link encap:Ethernet HWaddr 52:54:00:e2:bf:bc > UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1 > RX packets:4618 errors:0 dropped:73795 overruns:0 frame:0 > TX packets:17293 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:1000 > RX bytes:269714 (269.7 KB) TX bytes:1099997 (1.0 MB) > Interrupt:11 > > eth1 Link encap:Ethernet HWaddr 52:54:00:88:c5:53 > inet6 addr: fe80::5054:ff:fe88:c553/64 Scope:Link > UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1 > RX packets:4579 errors:0 dropped:73787 overruns:0 frame:0 > TX packets:17356 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:1000 > RX bytes:259356 (259.3 KB) TX bytes:1120260 (1.1 MB) > Interrupt:11 Base address:0x4000 > > eth2 Link encap:Ethernet HWaddr 52:54:00:58:86:ae > UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1 > RX packets:3445 errors:0 dropped:73727 overruns:0 frame:0 > TX packets:18471 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:1000 > RX bytes:196380 (196.3 KB) TX bytes:1184883 (1.1 MB) > Interrupt:11 Base address:0x6000 > > eth3 Link encap:Ethernet HWaddr 52:54:00:7e:91:50 > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:3093 errors:0 dropped:72262 overruns:0 frame:0 > TX packets:18835 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:1000 > RX bytes:178774 (178.7 KB) TX bytes:1207209 (1.2 MB) > Interrupt:11 Base address:0x8000 > > eth4 Link encap:Ethernet HWaddr 52:54:00:19:a8:ad > inet6 addr: fe80::5054:ff:fe19:a8ad/64 Scope:Link > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:3075 errors:0 dropped:72255 overruns:0 frame:0 > TX packets:18898 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:1000 > RX bytes:175020 (175.0 KB) TX bytes:1222424 (1.2 MB) > Interrupt:10 Base address:0xa000 > > eth5 Link encap:Ethernet HWaddr 52:54:00:17:bb:0d > inet6 addr: fe80::5054:ff:fe17:bb0d/64 Scope:Link > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:3075 errors:0 dropped:72254 overruns:0 frame:0 > TX packets:18901 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:1000 > RX bytes:178154 (178.1 KB) TX bytes:1218092 (1.2 MB) > Interrupt:10 Base address:0xc000 > > lo Link encap:Local Loopback > inet addr:127.0.0.1 Mask:255.0.0.0 > inet6 addr: ::1/128 Scope:Host > UP LOOPBACK RUNNING MTU:16436 Metric:1 > RX packets:95 errors:0 dropped:0 overruns:0 frame:0 > TX packets:95 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:0 > RX bytes:6884 (6.8 KB) TX bytes:6884 (6.8 KB) > > root@stgraber-vm:~# cat /etc/network/interfaces > auto lo > iface lo inet loopback > > auto br0 > iface br0 inet static > address 172.23.0.50 > netmask 255.255.255.0 > bridge-ports all > > auto eth0 > iface eth0 inet manual > up ifconfig $IFACE 0.0.0.0 up > up ip link set $IFACE promisc on > down ip link set $IFACE promisc off > down ifconfig $IFACE down > > auto eth1 > iface eth1 inet manual > up ifconfig $IFACE 0.0.0.0 up > up ip link set $IFACE promisc on > down ip link set $IFACE promisc off > down ifconfig $IFACE down > > auto eth2 > iface eth2 inet manual > up ifconfig $IFACE 0.0.0.0 up > up ip link set $IFACE promisc on > down ip link set $IFACE promisc off > down ifconfig $IFACE down > --- > -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/919068 Title: bridge_ports all doesn't work at boot time To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bridge-utils/+bug/919068/+subscriptions -- ubuntu-bugs 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