qemu host mode problem

shogun1234 · 08-03-2008, 12:27 PM

I try http://qemu-forum.ipi.fi/viewtopic.php?t=1963 to setup qemu host network, but no luck. Seems like there are a few things not too clear to me. Hope someone can give me advice.

My understanding is in host (my host running suse 11.0 with nic iwl4965agn):
1.) create tap1
2.) setup bridge (e.g. br1)
3.) attach network to bridge (e.g. attach wlan0 to br1)

in guest (qemu with debian kernel 2.6.25):
1.) create tap2
2.) config network to use the same ip network as host
3.)

The scripts i use are as below (and it is executed orderly):
create_host_tap.sh

Code:

sudo tunctl -t tap1 -u neo
sudo /sbin/ifconfig tap1 up

bridge_up.sh

Code:

sudo /sbin/brctl addbr br1
sudo /sbin/brctl addif br1 tap1

create_guest_tap.sh

Code:

sudo tunctl -t tap2 -u neo
sudo /sbin/ifconfig tap2 up

start_qemu.sh

Code:

qemu -hda c.img -m 512 -net nic -net tap -localtime

however, I suppose this is incorrect because each time when executing these scripts, the network hangs (no longer I am able to connect to the internet.)

How can I solve this problem in order to use network as host in qemu?

Thank you very much,

ordealbyfire83 · 08-04-2008, 07:06 AM

It's been quite a while since I used qemu, and I never could a "bridge" working successfully. I'm not sure what you need to do with your virtual machine in terms of networking, but if you're just looking for a "quick and dirty" means of getting it connected at all, then you could try something like

qemu [options] -redir tcp:5555::80 -redir tcp:5556::445

Hope this helps.