Jez, thanks for input.
Okay, well I believe that 'allow-hotplug' is needed by laptops that
use certain wireless cards, pcmcia cards, and such. However, if this
is a laptop and eth0 is a wireless card, then you've probably got bigger
problems to worry about. I've read in a few different places that bridging
generally doesn't work with wireless cards. See:
http://linux-net.osdl.org/index.php/Bridge#It_doesn.27t_work_with_my_Wireless_card.21
If eth0 is a PCI card, then just remove the allow-hotplug stuff. If
you've got a hotplug PCI system, you can always work out if/how to put
the allow-hotplug back in later.
To be honest, I don't know that eth0 is a PCI card, but I suspect it is. I
do know that the computer is a laptop (Dell Inspiron 6400 with Core 2 Duo,
much like the one reviewed at
http://www.reghardware.co.uk/2006/12/06/review_dell_inspiron_6400/), and I
do know that eth0 is not a PCMCIA card - the computer doesn't even have a
PCMCIA slot.
To summarize:
. Explain what eth0 is and what eth1 is (wireless, PCI, etc)
I am under impression that eth0 is my "not-wireless" network interface card;
not to be confused with wlan0, my wireless network interface card, mention
of which I had completely removed from /etc/network/interfaces.
As for what eth1 is - I hadn't noticed it before and I had assumed it was
something to do with the Xen installation. Given that you're asking,
though, I wonder now if it's something to do with another foray I've
recently made into virtualisation: I have installed the Qemu and have had a
virtual machine running on that. (That experiment is over now, though, and
I was going to remove Qemu.)
. Try again using the timeout settings in interfaces.
Done. No difference. After making /etc/network/interfaces look like this
(note change from "xenbr0" to "xbr0" and lack of "allow-hotplug") :
auto lo
iface lo inet loopback
iface xbr0 inet dhcp
bridge_fd 0
bridge_maxwait 0
bridge_helo 0
bridge_ports eth0
auto xbr0
I ran
/etc/init.d/networking restart
which returned:
Reconfiguring network interfaces...There is already a pid file
/var/run/dhclient.xbr0.pid with pid 2404
killed old client process, removed PID file
Internet Systems Consortium DHCP Client V3.0.4
Copyright 2004-2006 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/sw/dhcp/
Listening on LPF/xbr0/00:00:00:00:00:00
Sending on LPF/xbr0/00:00:00:00:00:00
Sending on Socket/fallback
eth0: ERROR while getting interface flags: No such device
interface eth0 does not exist!
Internet Systems Consortium DHCP Client V3.0.4
Copyright 2004-2006 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/sw/dhcp/
Listening on LPF/xbr0/00:00:00:00:00:00
Sending on LPF/xbr0/00:00:00:00:00:00
Sending on Socket/fallback
DHCPDISCOVER on xbr0 to 255.255.255.255 port 67 interval 7
DHCPDISCOVER on xbr0 to 255.255.255.255 port 67 interval 21
DHCPDISCOVER on xbr0 to 255.255.255.255 port 67 interval 13
DHCPDISCOVER on xbr0 to 255.255.255.255 port 67 interval 13
DHCPDISCOVER on xbr0 to 255.255.255.255 port 67 interval 7
No DHCPOFFERS received.
No working leases in persistent database - sleeping.
done.
And ifconfig -a returns
eth1 Link encap:UNSPEC HWaddr
32-4F-C0-00-18-E2-1D-61-00-00-00-00-00-00-00-00
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
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:12 errors:0 dropped:0 overruns:0 frame:0
TX packets:12 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:760 (760.0 b) TX bytes:760 (760.0 b)
sit0 Link encap:IPv6-in-IPv4
NOARP MTU:1480 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
xbr0 Link encap:Ethernet HWaddr 00:00:00:00:00:00
inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:15 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:3546 (3.4 KiB)
For comparison, it might tell you something to see that when I run my
original Etch kernel and make my /etc/network/interfaces looks this:
auto lo
iface lo inet loopback
# The primary network interface
allow-hotplug eth0
iface eth0 inet dhcp
iface wlan0 inet dhcp
wireless-essid ThinAir
auto eth0
auto wlan0
The result of /etc/init.d/networking restart is
Reconfiguring network interfaces...There is already a pid file
/var/run/dhclient.eth0.pid with pid 3188
killed old client process, removed PID file
Internet Systems Consortium DHCP Client V3.0.4
Copyright 2004-2006 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/sw/dhcp/
Listening on LPF/eth0/00:15:c5:c9:f6:e3
Sending on LPF/eth0/00:15:c5:c9:f6:e3
Sending on Socket/fallback
DHCPRELEASE on eth0 to 192.168.0.1 port 67
There is already a pid file /var/run/dhclient.wlan0.pid with pid 2560
killed old client process, removed PID file
Internet Systems Consortium DHCP Client V3.0.4
Copyright 2004-2006 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/sw/dhcp/
Listening on LPF/wlan0/00:19:7d:12:f3:31
Sending on LPF/wlan0/00:19:7d:12:f3:31
Sending on Socket/fallback
DHCPRELEASE on wlan0 to 192.168.0.1 port 67
Internet Systems Consortium DHCP Client V3.0.4
Copyright 2004-2006 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/sw/dhcp/
Listening on LPF/eth0/00:15:c5:c9:f6:e3
Sending on LPF/eth0/00:15:c5:c9:f6:e3
Sending on Socket/fallback
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 3
DHCPOFFER from 192.168.0.1
DHCPREQUEST on eth0 to 255.255.255.255 port 67
DHCPACK from 192.168.0.1
bound to 192.168.0.102 -- renewal in 233563 seconds.
Internet Systems Consortium DHCP Client V3.0.4
Copyright 2004-2006 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/sw/dhcp/
Listening on LPF/wlan0/00:19:7d:12:f3:31
Sending on LPF/wlan0/00:19:7d:12:f3:31
Sending on Socket/fallback
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 7
DHCPOFFER from 192.168.0.1
DHCPREQUEST on wlan0 to 255.255.255.255 port 67
DHCPACK from 192.168.0.1
bound to 192.168.0.201 -- renewal in 273397 seconds.
done.
So that ifconfig -a returns
eth0 Link encap:Ethernet HWaddr 00:15:C5:C9:F6:E3
inet addr:192.168.0.102 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::215:c5ff:fec9:f6e3/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:72 errors:0 dropped:0 overruns:0 frame:0
TX packets:35 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:18210 (17.7 KiB) TX bytes:5002 (4.8 KiB)
Interrupt:58
eth1 Link encap:UNSPEC HWaddr
32-4F-C0-00-18-E2-1D-61-00-00-00-00-00-00-00-00
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
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:12 errors:0 dropped:0 overruns:0 frame:0
TX packets:12 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:760 (760.0 b) TX bytes:760 (760.0 b)
sit0 Link encap:IPv6-in-IPv4
NOARP MTU:1480 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
wlan0 Link encap:Ethernet HWaddr 00:19:7D:12:F3:31
inet addr:192.168.0.201 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::219:7dff:fe12:f331/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:57 errors:0 dropped:0 overruns:0 frame:0
TX packets:26 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:16492 (16.1 KiB) TX bytes:3421 (3.3 KiB)
Interrupt:169 Memory:efcfc000-efd00000
. Also, do you have physical access to this machine or is it in a
remote hosting center? If you've got physical access then we can step
through creating a bridge manually - not something you really want to
try when logged in remotely :-)
I do have physical access to the machine.
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