[Xen-users] Networking in domU

["Dave Smif" <systemsconsultant@xxxxxxxxx>]

Hi,

Having a little trouble with networking in my domUs! I'm not doing
anything fancy at all. My vif setting for the domUs is the default
setting:

vif = [ '' ]

In fact, the only thing I changed in the config file is the drive
configuration so the things know where to boot from!

For what its worth, dom0 is slackware 10.2. domU 1 is slack 10.1, domu
2 is slack 10.0.

First time I set this up, things worked. "Great!", I thought.

I happily skipped along to my second machine and replicated
everything, ready to play with other domU setups. It came to testing
the first domU... no networking.

Checked my first box. Verified networking was ok in the domU, and
rebooted. Checked again - it had stopped.

I fired up another domU - again, so networking.

Scratched my head - a lot. Rebooted again. Still nothing.

I shut xen down (xend stop), ran "etc/rc.d/rc.inet1 restart" a few
times. Then I fired up xend again, and my domU. I could ping again.

> From I can tell, the device "peth0" had "gone missing" before.
In a working configuration, I get:

brctl show
bridge name     bridge id               STP enabled     interfaces
xenbr0              8000.feffffffffff       no                    vif0.0

      peth0

      vif7.0

In the non-working scenario, peth0 is not present - in "ifconfig" or
in "brctl show".

What am I doing wrong? Under what set of circumstances would peth0
disappear / not get created? I still can't get this device to appear
on the second test box...

Any hints / tips gratefully received!

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