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

Helder Rossa
Tue, 05 Sep 2006 12:18:28 -0000

You are saying that the real transfer rate will be the one that the real
device will have. rigth?
What do I need to configure to emulate the realtec?

Is it possible to pass a physical device to the VM not an emulated?
If could be possible to assign a real device to the VM then no bridge,
routing or nat would be necessary. right?


thanx

kimus



On Tue, 2006-09-05 at 13:52 +0200, Petersson, Mats
wrote:
>
>
>
>
>
>         ______________________________________________________________
>         From: xen-users-bounces@lists.xensource.com
>         [mailto:xen-users-bounces@lists.xensource.com] On Behalf Of
>         Helder Rossa
>         Sent: 04 September 2006 22:34
>         To: xen-users@lists.xensource.com
>         Subject: [Xen-users] Re: How to Networking Bridge?
>
>
>
>         I DID IT!!
>
>         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''.
>
> --
> Mats
>
>
>         thanx
>
>         On Mon, 2006-09-04 at 21:44 +0100, Helder Rossa wrote:
>         >
>         > Hi,
>         >
>         > 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
>         > network!!
>         >
>         > 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'' !!!
>         >
>         >
>         > thanx
>         >
>
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