On Tue, Feb 22, 2011 at 09:14:53PM -0600, Ted Brenner wrote:
> I commented out the network-script network-bridge line in
> xend-config.sxp. I then restarted xend and it started fine. I connected
> to the guest fine. Things seemed great except the network on guest didn't
> work. Couldn't ping any IP addresses, particularly ones I could from
> dom0. So I then followed the instructions here,
> [1]http://wiki.debian.org/BridgeNetworkConnections, to create a network
> bridge using debian. When I did, I tried to attach it to the vif
> interface. But that told me it was already attached to a bridge. Sure
> enough, it's attached to pan0. Not sure how that's getting started but oh
> well. So I tried specifying that bridge in my guest config file but still
> no internet.
>
> Here are the results of ./network-bridge status
>
> # ./network-bridge status
> ============================================================
> 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state
> UNKNOWN qlen 1000
> link/ether 00:25:22:8d:84:b2 brd ff:ff:ff:ff:ff:ff
> inet [2]10.0.0.3/24 brd 10.0.0.255 scope global eth0
> inet6 fe80::225:22ff:fe8d:84b2/64 scope link
> valid_lft forever preferred_lft forever
> 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state
> UNKNOWN qlen 1000
> link/ether 00:25:22:8d:84:b2 brd ff:ff:ff:ff:ff:ff
> inet [3]10.0.0.3/24 brd 10.0.0.255 scope global eth0
> inet6 fe80::225:22ff:fe8d:84b2/64 scope link
> valid_lft forever preferred_lft forever
>
> bridge name bridge id STP enabled interfaces
> pan0 8000.feffffffffff no vif3.0
>
> [4]10.0.0.0/24 dev eth0 proto kernel scope link src 10.0.0.3 metric 1
> default via 10.0.0.1 dev eth0 proto static
>
> Kernel IP routing table
> Destination Gateway Genmask Flags Metric Ref Use
> Iface
> 10.0.0.0 0.0.0.0 255.255.255.0 U 1 0 0
> eth0
> 0.0.0.0 10.0.0.1 0.0.0.0 UG 0 0 0
> eth0
> ============================================================
>
> Anything obvious jumping out? Why is this so difficult or did I just
> screw up some basic setting at some point?
>
that bridge called "pan0" doesn't have any external (physical) interfaces
attached to it.
I recommend you to set up a bridge called, say, 'br0', and attach your physical
eth0 to it, and also specify 'bridge=br0' for the VMs.
-- Pasi
> Anyway, thanks for all the help.
> Ted
>
> On Tue, Feb 22, 2011 at 6:52 AM, Pasi Kärkkäinen <[5]
pasik@xxxxxx> wrote:
>
> On Tue, Feb 22, 2011 at 06:27:43AM -0600, Ted Brenner wrote:
> > Yeah, I commented out the entire line after sending that and it
> boots and
> > shuts down fine. So are you suggesting using routing instead of
> bridging
> > where routing uses the distros networking tools instead of xen?
> >
>
> No. I'm suggesting you set up the bridges using distro network settings.
>
> -- Pasi
> > On Tue, Feb 22, 2011 at 12:22 AM, Pasi Kärkkäinen
> <[1][6]
pasik@xxxxxx> wrote:
> >
> > On Mon, Feb 21, 2011 at 08:14:33PM -0600, Ted Brenner wrote:
> > > Thanks for the help Pasi. So why use Debian network scripts
> in
> > lieu of
> > > Xen scripts when the Debian wiki doesn't suggest it?
> > >
> >
> > It has been a 'best practive' to use distro provided network
> scripts
> > for years already..
> >
> > Upcoming Xen 4.1 with the new default xl/libxl toolstack actually
> > as a default requires you to set up the networking using the
> distro
> > scripts!
> >
> > > I removed 'bridge=eth0' from the network-script line but I'm
> still
> > having
> > > trouble with the xen daemon. When I boot up it isn't
> running and
> > when I
> > > shutdown it still hangs apparently because it's getting no
> response
> > from
> > > eth0. Do I have to do something to make my change to
> > xend-config.sxp
> > > permanent?
> > >
> > > When I try and start up xend I see this error:
> > >
> > > # xend start
> > > ifdown: interface eth0 not configured
> > > RTNETLINK answers: Device or resource busy
> > > /etc/xen/scripts/network-bridge: line 240: sigerr: command
> not
> > found
> > >
> >
> > You have to remove the whole "network-script" line !
> >
> > -- Pasi
> >
> > > On Mon, Feb 21, 2011 at 4:18 AM, Pasi Kärkkäinen
> > <[1][2][7]
pasik@xxxxxx> wrote:
> > >
> > > On Sun, Feb 20, 2011 at 10:14:06PM -0600, Ted Brenner
> wrote:
> > > > Hi,
> > > >
> > > > I'm trying to setup Xen 4.0 on Debian Squeeze. I've
> been
> > following
> > > this
> > > > wiki for the most part.
> > > first went
> > > > through the process, after rebooting I just got a
> blank
> > black
> > > screen with
> > > > no grub. So after reinstalling my OS I've been
> rebooting
> > after
> > > every step
> > > > and everything works fine (not sure why I got the
> grub error
> > the
> > > first
> > > > time). But after uncommenting the network-script
> part of
> > > xen-config.sxp
> > > > file and adding 'network-bridge antispoof=yes',
> things start
> > to act
> > > up.
> > > > The first thing I noticed was that shutdowing down
> the dom0
> > now
> > > hangs,
> > > > usually at the point of stopping the xend daemon. So
> I
> > tried
> > > adding
> > > > 'bridge=eth0'. Nothing really change but I still
> installed
> > a domU,
> > > Ubuntu
> > > > Maverick. However, I couldn't connect as I was
> getting
> > errors like
> > > this:
> > > >
> > > > Error: Device 0 (vif) could not be connected. Hotplug
> > scripts not
> > > working.
> > > >
> > > > Checking the hotplug log it said this
> > > > can't add vif1.0 to bridge eth0: Operation not
> supported
> > > >
> > >
> > > Sounds like 'eth0' is not a bridge. So probably wrong
> bridge=
> > parameter
> > > used for that vm.
> > >
> > > eth0 is my dom0 network interface so the problem is that it
> is
> > already in
> > > use correct?
> > >
> > >
> > > > So I'm wondering how I should be setting up the
> > network-scripts.
> > > Every
> > > > instruction I read mentions it but they all seem to
> have
> > slightly
> > > > different variants. Any help would be much
> appreciated.
> > I'm
> > > running on
> > > > amd64 platform.
> > > >
> > >
> > > I'd recommend to disable xen network-script in
> > /etc/xen/xend-config.sxp
> > > and set up the required bridges using debian network
> scripts.
> > >
> > >
> > >
> > > -- Pasi
> > >
> > > --
> > > Ted Brenner
> > >
> > > References
> > >
> > > Visible links
> > > 2. [5][10]http://wiki.debian.org/Xen
> >
> > --
> > Ted Brenner
> >
> > References
> >
> > Visible links
> > 1. mailto:[11]pasik@xxxxxx
> > 2. mailto:[12]pasik@xxxxxx
> > 3. [13]http://wiki.debian.org/Xen
> > 4. mailto:[14]pasik@xxxxxx
> > 5. [15]http://wiki.debian.org/Xen
>
> --
> Ted Brenner
>
> References
>
> Visible links
> 1. http://wiki.debian.org/BridgeNetworkConnections
> 2. http://10.0.0.3/24
> 3. http://10.0.0.3/24
> 4. http://10.0.0.0/24
> 6. mailto:pasik@xxxxxx
> 8. http://wiki.debian.org/Xen
> 9. mailto:pasik@xxxxxx
> 10. http://wiki.debian.org/Xen
> 11. mailto:pasik@xxxxxx
> 12. mailto:pasik@xxxxxx
> 13. http://wiki.debian.org/Xen
> 14. mailto:pasik@xxxxxx
> 15. http://wiki.debian.org/Xen
