[Qemu-devel] Networking problem

[Giovanni Formisano]

Hy all.

I have a problem to configure the network i will try to explain may trouble. I have to make a cluster of virtual machine with one Head node and N worknode. I used a kvm and qemu. Now I want that when I start my HeadNode this one have to send the ip of other machine. 

My Headnode have two network device one of this is connect to tap interface of guest machine and the other one I would use to configure my dhcp-server that send ip. Above I print my file interface of headnode:

 

auto eth2

iface eth2 inet static

        address 192.168.2.2

        netmask 255.255.255.0

        broadcast 192.168.2.255

        gateway 192.168.2.1 (that is the ip of tap0 device)

auto eth7

iface eth7 inet static

        address 10.0.2.254

        netmask 255.255.255.0

        broadcast 10.0.2.255

        network 10.0.2.0

but when i start my worknode it doesn't get the ip

I launch in this way the machine

HEADNODE 

qemu-system-x86_64 -hda HeadNode.img -m 1024 -net nic,model=virtio,macaddr=00:16:3e:75:09:aa -net tap,ifname=tap0,script=no -vga vmware -net nic,model=rtl8139,macaddr=00:16:3e:74:08:ac

WORKNODE

qemu-system-x86_64 -hda WORKNODE.img -m 1024 -net nic,model=rtl8139,macaddr=F0:4D:A2:DA:D6:79 -vga vmware

Some help? 

Best

Giovanni