Re: [Qemu-devel] NETDEV WATCHDOG: eth0: transmit timed out

["Jim C. Brown" <jbrown106@phreaker.net>]

On Wed, Jan 05, 2005 at 07:12:49PM +0100, Horst Schlonz wrote:
> Am Mittwoch, den 05.01.2005, 10:43 -0500 schrieb Jim C. Brown:
> > On Wed, Jan 05, 2005 at 05:30:44AM +0100, Horst Schlonz wrote:
> > > the problem is:
> > > root@guest # ping -c1 172.20.0.1
> > > PING 172.20.0.1 (172.20.0.1) 56(84) bytes of data
> > > NETDEV WATCHDOG: eth0: transmit timed out
> > > NETDEV WATCHDOG: eth0: transmit timed out
> > > >From 172.20.0.2 icmp_seq=1 Destination Host Unreachable
> > > 
> > > --- 172.20.0.1 ping statistics ---
> > > 1 packets transmitted, 0 received, +1 errors, 100% packet loss, time 0ms
> > > root@guest #
> > > 
> > > can anyone confirm this? is something wrong with the emulated
> > > realtek-network-device?
> > > 
> > 
> > Looks like you may need to set up iptables. E.g. make sure the kernel firewall
> > isn't blocking it.
> > 
> > Also possible that you are using the wrong driver in the guest OS, so it doesn't
> > see the ethernet card.
> > 
> 
> so, this is supposed to work, right? does it work for you? or am i
> missing something here? i have tried various drivers (kernels, indeed).
> suse 9.2, latest knoppix...   same problem there.

Show us what is in your /etc/qemu-ifup script.

> 
> maybe it's the tun-driver of my host kernel. i have ubuntu hoary with
> stock kernel 2.6.9-1-686 here. firewall tables are all clean on host and
> guest, i have checked this already with iptables -L.

That isn't good enough, you need to add several rules to get it to work.

-- 
Infinite complexity begets infinite beauty.
Infinite precision begets infinite perfection.