I've installed plan9 on a plan9.raw.img file via qemu and I'm able to boot on it.

How can I transfer files between plan9 and my host (I'm under macos)?

I've followed http://plan9.bell-labs.com/wiki/plan9/installing_plan_9_on_qemu/index.html 

and run 

qemu -hda Plan9.qcow2.img -net nic -net user

but from plan9 when I do

 rc> ip/ping 10.0.2.2 nothing happens.