Hi Robin, Thanks for this info, I tried the first example provided under http://www.libvirt.org/formatdomain.html#elementsNICS - Virtual Network which I can see an example that defines the following: <interface type='network'> <source network='default'/> </interface> and that is what I tried to create and start the container with. My understanding, but I may be wrong is that IP, MAC and tun device will automatically be created and assigned with values by libvirt. I understand, that this type of configuration uses the Libvirt's default network which is configured below and has a range of dhcp IPs. [root@enc12 avi]# virsh net-dumpxml default <network> <name>default</name> <uuid>9c949214-562a-4c31-a098-235dd368caca</uuid> <forward mode='nat'/> <bridge name='virbr0' stp='on' delay='0' /> <ip address='192.168.122.1' netmask='255.255.255.0'> <dhcp> <range start='192.168.122.2' end='192.168.122.254' /> </dhcp> </ip> </network> explicitly defining the container with IP of 192.168.122.2 - did not work. Here is the interface portion of the XML I defined the container with <interface type='network'> <source network='default'/> <ip address ='192.168.122.2'/> </interface> In LXC tools I did not have to configure anything from inside container. All settings - tun, internal network interface of the container, MAC and IP were created automatically. I would like to verify if I indeed must to configure the networking from *inside* the container? Thanks again, - Avi Robin Green <greenrd@xxxxxxxxxxx> wrote on 09/03/2010 03:52:41 AM: > From: > > Robin Green <greenrd@xxxxxxxxxxx> > > To: > > Avi Weit/Haifa/IBM@IBMIL > > Cc: > > libvirt-users@xxxxxxxxxx > > Date: > > 11/03/2010 03:24 PM > > Subject: > > Re: LXC: unable to configure networking for LXC > > At Thu, 11 Mar 2010 14:08:48 +0200, > Avi Weit wrote: > > I would like to set up sshd under an LXC application container and to be > > able to connect into it from the host. I was able to achieve that with LXC > > tools CLI after setting up a bridge via brctl and creating a proper > > lxc.conf file for lxc-execute to use. However, I am unable to do so via > > libvirt. > > As far as I know, libvirt always assumes that the guest is responsible > for obtaining an IP address e.g. using DHCP (which makes perfect sense in > the context of virtualisation technologies which emulate a PC). So at > this time, I think you need to have a script which runs dhclient before > running sshd. > > Another alternative is just to run a full Linux distribution inside LXC, > and then the LXC guest's init will be responsible for bringing up the > network. However, I haven't managed to do this (init just dies > immediately when I've tried it, on Fedora 12). > > Regards, > -- > Robin Green
