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After researching everything possible on KVM and bridged interfaces and trying everything in the Ubuntu Forums, I still can not get my guest to connect.

 Guest IP:
 Host IP:

Output/s from host:
brctl show

bridge name bridge id   STP enabled interfaces
br0     8000.14feb5d0655c   no      eth0
virbr0  8000.000000000000   yes 

brctl showmacs virbr0 
port no mac addr    is local?   ageing timer
1   52:54:00:45:12:b8   no       212.59
1   fe:54:00:45:12:b8   yes        0.00

(52:54:00:45:12:b8 is the mac address for the guest)

PING ( 56(84) bytes of data.
From icmp_seq=1 Destination Host Unreachable

Interface config:
# The primary network interface
auto eth0
iface eth0 inet manual

auto br0
iface br0 inet static
    bridge_ports eth0
    bridge_maxwait 0
    bridge_fd 0
    bridge_hello 2
    bridge_maxage 12
    bridge_stp off

Any ideas on what might be going wrong? Thanks everybody!

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