virtual network with qemu

[marco.borsatino at poste.it]

Hi to all.
I'd like to implement a little virtual network using QEMU 0.10.2, but, until now, I have failed.
This is the situation.
Host: AMD 64 running FreeBSD 7.2
#ifconfig
nfe0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
	options=10b<RXCSUM,TXCSUM,VLAN_MTU,TSO4>
	ether 00:15:f2:44:2d:f9
	inet 192.168.0.2 netmask 0xffffff00 broadcast 192.168.0.255
	media: Ethernet autoselect (100baseTX <full-duplex>)
	status: active
plip0: flags=108810<POINTOPOINT,SIMPLEX,MULTICAST,NEEDSGIANT> metric 0 mtu 1500
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
	inet6 fe80::1%lo0 prefixlen 64 scopeid 0x3 
	inet6 ::1 prefixlen 128 
	inet 127.0.0.1 netmask 0xff000000 
I've create an image using the FreeBSD 7.2 DVD:
#qemu-img create -f qcow2 hda fbsd72.img 10G
The image has been created.
#qemu -L /usr/local/share/qemu/ -cdrom /dev/acd0 -m 512 -boot d fbsd72.img
Alfter a long time, the installation of the guest system has been completed.
When the installation program asked for information about network configuration, as a 
first step, I chose DHCP configuration and, as usualy, the network has been set
like this:
IP 10.0.2.15/255.255.255.0
gateway 10.0.2.2
nameserver 10.0.2.3
When the installation of the guest PC was finished, I've copied the 
image to pc01.img, to keep the original untouched. After that I've started qemu like this:
#qemu -L /usr/local/share/qemu -localtime -net nic,macaddr=00:15:f2:44:2d:01 -net socket,mcast=230.0.0.1:1234 -hda pc01.img -cdrom /dev/acd0 &
but the network in the guest system does not work.
ifconfig in the guest system tells:
#ifconfig -a
ed0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
  ether 00:15:f2:44:2d:01
  media: Ethernet 10baseT/UTP <full-duplex>
plip0: ...
lo0: ...
If I try:
#ping 10.0.2.2 (the gateway)
all packets are lost. For this reason, I've tryed a static IP configuration like this:
IP 10.0.2.4/255.255.255.0
gateway 10.0.2.2
nameserver 10.0.2.3
but the gateway does not respond. So it is useless to try with a second guest system.
Please help. Sorry for my bad english.


Marco