KVM/libvirt host has vnet for each guest?

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http://serverfault.com – Totally new to KVM here, so maybe there is nothing wrong with my set up, but I am running 10 guest VMs on my Ubuntu 12.04 server via KVM and I just noticed that ifconfig returned a plethora of interfaces. It looks like there is one of these for each guest: vnet5 Link encap:Ethernet HWaddr fe:54:00:51:e8:66 inet6 addr: fe80::fc54:ff:fe51:e866/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:1707 errors:0 dropped:0 overruns:0 frame:0 TX packets:2506 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuele (HowTos)