QEMU/KVM bridge networking howto

Question

Hello all,
I had a dialog here:  https://bbs.archlinux.org/viewtopic.php?id=145177  but I inadvertently hijacked the OP thread, for that I deeply apologize and decided to start my own thread.
I've been struggling with getting my bridge networking working with QEMU/KVM.  I would love to get my KVM Windows 7 install working with bridge network so I can access my internal lan, but so far I am out of luck.  When I follow the Wiki's I completely hose my network settings and can't get online with my Arch host.
I've followed the wiki's here:
https://wiki.archlinux.org/index.php/QE … al_network
should I be using this wiki instead:
https://wiki.archlinux.org/index.php/KV … Networking
I'm kinda confused on how to approach this since there are separate wikis for QEMU and KVM.
I have a couple of confusing questions, that I hope someone can answer, or lead me in a direction to help me find a solution.  Free internet beer for helping. 
From a vanilla install of Arch, if I would like to run Windows 7 64-bit in a VM, should I use QEMU or KVM?  I did get the windows 7 up and running, not sure how, but it's not on my internet LAN, the VM can only access the internet.
Can someone help me out step by step or pointing me in a direction that can help get a bridge network set up between my host, which will need a static IP address, and my VM, which I would prefer to have another static IP address on my network.
I've tried using virtualbox but the performance was slower than using QEMU/KVM.
BTW, what's the difference between QEMU and KVM?  I'm confused by that as well.  I would even be willing to write up a "beginners guide" if I can get help getting mine set up.
any help is greatly appreciated.
--nixIT

Answer 1

I do things manually on my system so, for two VM:
ip tuntap add dev tap0 mode tap user djgera
ip tuntap add dev tap1 mode tap user djgera
brctl addbr br0
brctl setfd br0 0.0
brctl addif br0 eth0
brctl addif br0 tap0
brctl addif br0 tap1
ip link set dev br0 up
ip link set dev tap0 up
ip link set dev tap1 up
ip addr del 192.168.0.77/24 dev eth0
ip addr add 192.168.0.77/24 broadcast + dev br0
ip route add default via 192.168.0.1
then each qemu-kvm instance that I lauch add:
-device virtio-net-pci,netdev=net0,mac=52:54:00:12:34:00 -netdev type=tap,id=net0,ifname=tap0,script=no,downscript=no
-device virtio-net-pci,netdev=net1,mac=52:54:00:12:34:01 -netdev type=tap,id=net1,ifname=tap1,script=no,downscript=no