odd qemu issue and networking

[Zane C.B.]

qemu -hda trixbox.img -net nic -net tap,fd=/dev/tap0

Results on garbage being printed out when ever any network IO takes
place.

nve0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> mtu 1500
	inet 192.168.15.2 netmask 0xffffff00 broadcast 192.168.2.2
        inet 192.168.15.4 netmask 0xffffffff broadcast 192.168.15.4
        inet 192.168.1.2 netmask 0xffffff00 broadcast 192.168.1.255
        ether 00:30:18:a0:22:97
        media: Ethernet autoselect (100baseTX <full-duplex,flag0,flag1>)
	status: active
tap0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> mtu 1500
        ether 00:bd:38:5b:14:00
bridge0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        ether 7a:fb:12:be:28:87
        id 00:00:00:00:00:00 priority 32768 hellotime 2 fwddelay 15
        maxage 20 holdcnt 6 proto stp maxaddr 100 timeout 1200
        root id 00:00:00:00:00:00 priority 0 ifcost 0 port 0
        member: tap0 flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP>
        member: nve0 flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP>
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