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RE: [Xen-users] Re: How to Networking Bridge?

To: "Helder Rossa" <rossa@xxxxxxxxx>, xen-users@xxxxxxxxxxxxxxxxxxx
Subject: RE: [Xen-users] Re: How to Networking Bridge?
From: "Petersson, Mats" <Mats.Petersson@xxxxxxx>
Date: Tue, 5 Sep 2006 13:52:20 +0200
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Thread-topic: [Xen-users] Re: How to Networking Bridge?

From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Helder Rossa
Sent: 04 September 2006 22:34
To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-users] Re: How to Networking Bridge?


I had to compile tun kernel module (Universal TUN/TAP device driver, 1.6) . After this all worked Fine!!

Another question: my network is at 10Mbps (?!) is there some configuration? My ethX is 1Gb!!! 
That doesn't really matter. It's just a VIRTUAL network card anyways, so you're not going to be limited by the "10Mbps" in any real way... It's just part of the emulation of the network card that uses a pretty basic PCNet32 device, which doesn't say 100Mbps or 1Gbps... It wouldn't be very hard to change that, but what's the point - it never hits any real hardware, so whatever the number reported, it's not actually reflecting anything real. Having said all that, the latest QEMU version (in xen unstable) also supports a couple of new network cards, including a 100Mbps realtek 8139. Not that it will make much of a difference to the ACTUAL transfer rate tho'.


On Mon, 2006-09-04 at 21:44 +0100, Helder Rossa wrote:

I've a working xen 3.0.2 booting a gentoo linux on Dom0.

I have setup a Windows XP in a DomU OK with no problems except the

My problem is that I wanted to give a working network interface on the
DomU and the best I could. making the windows detect an network adapter,
was putting:

    vif = ['type=ioemu']

I also tryied:

    vif = ['type=ioemu, bridge=xenbr0']

Could never ping a external from DomU!!

What I know: 

    - the ethX device is a logical device and the physical device is
renamed to pethX;
    - the vifX.Y devices are linked with ethY from DomX (ie.: vif1.0 <->
Dom1 eth0); 
    - there is also a vethX ...

What configuration I have to do on Dom0?
What configuration I have to do on DomU?

When rebooting I have always need to do 'ifconfig ethX up' !!!


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