libvirt users - Jun 2010 - host OS can't access internet but guest OS with bridge can

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i have a desktop with ubuntu 9.04 on it... it needs to be updated but i
can't access the internet since its last reboot.  it has linux
2.6.28-18-generic on it, and libvirt 0.6.1-0ubuntu5.1.

i setup libvirt for bridging, and a guest OS i have running can access
the internet fine.

when i try to ping someplace from the host, it can resolve the hostname
but i get "Destination Host Unreachable" errors.  it uses the router
for
DNS, and i can access the router and other local computers fine.

$ route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use
Iface
192.168.1.0     0.0.0.0         255.255.255.0   U     0      0        0 br0
192.168.1.0     0.0.0.0         255.255.255.0   U     1      0        0 eth0
192.168.122.0   0.0.0.0         255.255.255.0   U     0      0        0
virbr0
169.254.0.0     0.0.0.0         255.255.0.0     U     1000   0        0 br0
0.0.0.0         192.168.1.1     0.0.0.0         UG    0      0        0 eth0
0.0.0.0         192.168.1.1     0.0.0.0         UG    100    0        0 br0
$

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