On Wed, Apr 13, 2011 at 15:03, <paul.worner@xxxxxxxxxxxxxxxxxx> wrote: > Hi Jorge, Hi! thanks for the reply Paul, > I am doing it by creating a bridge per vm. I am not sure this is the > best approach. Hopefully, someone has a cleaner approach. it is a good solution if nothing better comes up, i was thinking maybe there is a cleaner way as you say though, if not i will most definitely follow your lead, thank you! > I did need to add forward mode "route", since the vm's network is > independent of the host's network(s) and I am routing. > > <network> > <name>netdom4</name> > <forward mode="route"/> > <bridge name="virbr%d" stp="off" delay="0"/> > <ip address="10.0.0.1" netmask="255.255.255.252"> > </ip> > </network> > > If you are not routing, you can set this mode to "nat" so the vm will > get sourced from host's address. I haven't tried this, but I would > assume the iptables nat rules are created automatically. > > <forward mode="nat"/> > > Hope this helps, > Paul > > > -----Original Message----- > From: libvirt-users-bounces@xxxxxxxxxx > [mailto:libvirt-users-bounces@xxxxxxxxxx] On Behalf Of Jorge Somavilla > Sent: Wednesday, April 13, 2011 7:29 AM > To: libvirt-users@xxxxxxxxxx > Subject: point-to-point connection between vm and host > > Hi! hopefully someone can give me a hint with this: > > > I need to create a vm with a point-to-point connection to the host > using a /30 subnet. Right now i have this in the vm's xml for libvirt: > > <interface type="network" name="eth0" onboot="yes"> > <source network="default"/> > <mac address="02:fd:00:00:01:00"/> > </interface> > > > Which brings up an interface in the vm that is configured later by a a > daemon, getting to this: > > vnx@r2:~$ ifconfig eth0 > eth0 Link encap:Ethernet HWaddr 02:fd:00:00:01:00 > inet addr:10.250.0.2 Bcast:10.250.0.3 Mask:255.255.255.252 > > > While in the host the other interface is created: > > root@tau:/home/jorge/workspace/vnx# ifconfig r2-e0 > r2-e0 Link encap:Ethernet HWaddr 0a:81:b6:3c:24:15 > inet addr:10.250.0.1 Bcast:10.250.0.3 Mask:255.255.255.252 > > > However there is no connectivity between them, probably because of > some mistake in the <interface> tag, perhaps a wrong 'type' attribute, > but i haven't found out yet. I wouldn't want to create a bridge and > connect both interfaces (vm's and host's) to the bridge, but to have > this ptp, if possible. How would i go about doing that? > > thanks! > Jorge > > _______________________________________________ > libvirt-users mailing list > libvirt-users@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/libvirt-users >
