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xen-users
Re: [Xen-users] Xen and IP
Am Dienstag, den 12.04.2005, 08:36 -0700 schrieb Nivedita Singhvi:
> Shahzad Chohan wrote:
>
> > Hi
> >
> > I've got fedora core 4 running in a domain. I configured the IP, but
> > it didn't seem to work. Basically the fc4 is confiured to use dhcp,
> > but I wrote the ip in teh rawhide config file. Instead of using teh ip
> > from the config file it picked up a dhcp assigned ip. Am I missing
> > something fundamental? Can someone please advise me
> >
> > My config file is like this: (/etc/xen/rawhide)
> >
> > kernel ="/boot/vmlinuz-2.6.11-1.1226_FC4xenU"
> > memory = 100
> > name = "rhel-4-ws"
> > nics = 1
> > disk = ['phy:hda7,hda7,w']
> > root = "/dev/hda7 ro"
> > #dhcp = "dhcp"
> > vip = "10.222.4.231"
>
> I wasn't aware vip was a valid parameter?
No, it was "ip":
<http://www.cl.cam.ac.uk/Research/SRG/netos/xen/readmes/user/user.html#SECTION03210000000000000000>
But afaik all networking options in the /etc/xen/ config files configure
the virtual 'vif*' interfaces within dom0 ("host"), _not_ the 'eth0'
interfaces within a domU ("guest")! If you use bridging (is there a
"xen-br0" device in dom0?), you do not need to configure the vif*
devices, omit options like ip/dhcp/netmask.
> You do need to provide a MAC address that the virtual interface
> on domU can use, and the associated bridge interface on dom0).
> e.g.:
>
> vif= [ 'mac=aa:00:00:00:00:11, bridge=xen-br0' ]
>
> The easiest way to configure the IP address of the domU
> interface is by editing the normal interface configuration file
> (such as /etc/sysconfig/network-scripts/ifcfg-eth0, if the
> device name you want to use is eth0).
Some distro initscripts allow network config via kernel command line
such that you could do that with the "extra=" option, but
RH/FC/CentOS/RawHide do not, so the guest image has to be configured
properly (as Nivedita descibes).
> Make sure you have mounted and are editing the domU
> filesystem :).
... and umount it before "xm create" ;)
> You can, of course, always manually bring up the
> interface once the domain is created.
/nils.
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