Ubuntu Networking :: Eth0 DISABLED Upon Reboot - Lucid

Sep 7, 2010

Network card (82566DM-2 Gigabit Network Connection) is DISABLED upon reboot. Only way to bring it out of disabled mode is to rerun dhclient to obtain a DHCP lease. Upon reboot though, the NIC is back into disabled mode.

A workaround I have found is to uncomment the iface line in /etc/network/interfaces, but considering I have 14 identical PCs to this one, and only this one is currently giving me grief, I am trying to find the root cause

The machine successfully obtains an IP using the PXE boot option in the BIOS - so I can hopefully rule out hardware problems as a cause. Network cable has been replaced, as the location of the machine to a different switch port.

/etc/network/interfaces

Code:
# The loopback network interface
auto lo
iface lo inet loopback

[Code].....

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Networking :: The Output Tells Me That Eth0 Is Forwarding And Eth1 Is Disabled?

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I'm trying to setup a network with a bridge on Debian Lenny (too bad most bridging information is for 2.4 kernel, maybe I'll write some if I get this to work). I've seen somewhat similar problems involving bridging for VMs and a couple involving Fedora, but people say that it was either a driver problem or it was fixed magically.I'm using a few Intel Pro 100s, which I'm pretty certain have had driver support in the kernel for years now. Magic doesn't happen.Here's /etc/network/interfacesQuote:

auto loiface lo inet loopbackauto br0
iface br0 inet staticbridge_ports eth0 eth1bridge_maxwait 0address 70.168.186.252netmask 255.255.255.254gateway 70.168.186.1

[code]....

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so I now have 4 Ubuntu Lucid LTS installations - terrific - but the alternative Ubuntu boot on this particular PC (all made from the same Live CD) does not have any eth0 configured, so I cannot reach even my router. I can look at the eth0 properties with "Network tools" and it has no IP or MAC. I have the network notification gremlin installed but it does not appear on the top panel. {"eth0" hardware works under Win XP, hence this post}.

I'm a novice at Ubuntu, and I am at a loss. I realise that networking is supposed to be automatic, no 'tool' should be needed, but what can I do when it has not configured?

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Jun 22, 2010

So, after installing Lucid wireless doesn't work for me. When I click on the network icon on the status bar, it shows "wireless is disabled".

With that message, I press the wifi button on my HP laptop and it turns off my blue-tooth, without changing the status of my wifi.

I found this rfkill command in another thread:

Before doing anything, after bootup:

Code:
$ rfkill list
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
code....

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after the 5.6 update I started loosing the connection to my router. Having had issues with routers before I assumed that the router was on its way out. However I happended to have a laptop handy the other day and thought I would give it a try (after eth0 went down), router was fine(same cable too). I have tried bringing eth0 up/down (gui and ifdown/ifup) and restarted the network(gui and cli) but it will not get an ip(as I recall it does recognize that the cable is connected). If I do a reboot, eth0 comes up immediately. The log just shows repeated dhcp requests. I tried a dhclient -r but it errors out with no link found. It has been doing this since 5.6 came out (roughly once a day) so I THINK that it is not a hardware issue(should have died completely by now if it was). PSU voltages show stable and unchanged. It does use the forcedeath driver. 5.6-64bit fully updated.

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Code:

01:00.0 VGA compatible controller: nVidia Corporation GeForce 9200M GS (rev a1)

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I can use eth1 as the default gateway and ping google.com, etc. But when I now attempt to communicate with the controller with netcat, e.g.

Code: echo !HH | nc 192.168.1.6 80

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I have two servers on a vlan at my datacentre/colocation and previously both servers had public IPs on their eth0 interfaces. The servers are HP ProLiant DL360s - one is a G4 and one is a G5 The newer G5 is now the LAMP server and the G4 has been retired and I want to repurpose it as an iSCSI target using openfiler freenas or similar.

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The G5
eth0 - Public IP - full LAMP services on two or three virtual interfaces
eth1 - Private IP 192.168.0.1
The G4
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eth1 - Private IP 192.168.0.2

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I am afraid that if I assign the private IPs to the eth1 interfaces the routing may either not work or interfere with the access to the production internet facing interfaces (eth0s).

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Eth0 and Eth1 is bonded and works fine but when i reboot the OS eth0 and eth1 cant be up when i run command "ifup bond0", it gives me following message.

OS information:

Network Card :

I am using above card , it works perfectly fine and I have bonded but when I reboot , eth0 and eth1 looses this driver and also the RPMS I have installed , they are gone too.

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[Code]...

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ifconfig eth0:

Code:

eth0 Link encap:Ethernet HWaddr 00:1f:16:ba:4c:8c
inet addr:10.136.9.147 Bcast:10.136.9.159 Mask:255.255.255.240
inet6 addr: fe80::21f:16ff:feba:4c8c/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

[code]....

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pm-suspend.log: http://pastebin.org/273444
pm-powersave.log: http://pastebin.org/273445

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im trying to setup eth0 with subdevice eth0.0 and eth0.99 to come up at boot

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eth0:0 is static ip
eth0.99 is 802.1q vlan interface
/etc/network/interfaces
Code:
auto lo
[Code]....

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1-Defining two ports
2-Defining two sockets
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[code]....

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Quote:

Ignoring unknown interface eth0=eth0.

ifconfig tells me

Quote:

eth0 Link encap:Ethernet HWaddr 00:25:64:e8:18:2c
inet addr:192.168.0.112 Bcast:192.168.0.255 Mask:255.255.255.0
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[code]....

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Code:

* Stopping the Firestarter firewall...
eth0: error fetching interface information: Device not found
eth0: error fetching interface information: Device not found
eth0: error fetching interface information: Device not found

[code]....

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[Code]...

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