[Fedora-xen] Fedora 8, qemu-kvm and networking
Richard W.M. Jones
rjones at redhat.com
Mon Nov 19 11:40:25 UTC 2007
John Lagrue wrote:
> Having installed F8 and tried out the latest virt-manager, I have to say I'm
> impressed.
>
> But........I am still utterly baffled by guest networking.
>
> What I *want* to do is have a Windows XP guest that runs on the same network
> as my laptop, the host; in other words, the guest should be able to access
> all the network that the laptop can see. But I can't for the life of me find
> out how to do this.
I'm fairly sure this is not possible. Guests created with virt-manager
(ie. libvirt) will want to talk to the bridge created by libvirtd. ie.
They'll be started up with the following qemu -net options:
/usr/bin/qemu-kvm [...]
-net nic,macaddr=00:16:3e:86:61:81,vlan=0
-net tap,fd=12,script=,vlan=0
Networking is handled through a bridge (usually called virbr0) and IP
addresses are assigned from a "private range", by default 192.168.122.X.
The assignment of addresses and NAT to the "outside world" is done by
a dnsmasq process.
All of this means that the Windows guest won't be on the same network as
the host, ie. broadcasts etc won't work.
Rich.
--
Emerging Technologies, Red Hat - http://et.redhat.com/~rjones/
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