I'm trying to install KVM on Ubuntu 12.04 server. We have multiple nic on this server of which we primarily use eth0. The server network runs fine(i'm able to ping gateway, ping dns server and ping servers on internet) with eth0

/etc/network/interfaces
auto lo
iface lo inet loopback

auto eth0
iface eth0 inet static
      address 192.168.22.194
      netmask 255.255.255.0
      network 192.168.22.0
      broadcast 192.168.22.255
      gateway 192.168.22.1
      dns-nameservers 10.71.130.58 10.71.130.60
      dns-search test.local

I installed bridge-utils and configured br0 as below

/etc/network/interfaces
auto lo
iface lo inet loopback

auto eth0
iface eth0 inet manual

auto br0
iface br0 inet static
      address 192.168.22.194
      netmask 255.255.255.0
      network 192.168.22.0
      broadcast 192.168.22.255
      gateway 192.168.22.1
      dns-nameservers 10.71.130.58 10.71.130.60
      dns-search test.local
      bridge_ports eth0
      bridge_fd 9
      bridge_hello 2
      bridge_maxage 12
      bridge_stp off

Post which i'm able to ping servers on the same ip range 192.168.22.2-254 except for 192.168.22.1 (which is the gateway) also i'm not able to ping any other servers. I'm not able to ping this machine from network.

The output for route -n

Kernel IP routing table
Destination     Gateway         Genmask         Flags   Metric  Ref     Use Iface
0.0.0.0         192.168.22.1    0.0.0.0         UG      100     0       0   br0
192.168.22.0    0.0.0.0         255.255.255.0   U       0       0       0   br0
192.168.122.0   0.0.0.0         255.255.255.0   U       0       0       0   virbr0

I've been struggling with this issue for past 5 days, would be of help if anyone can point me in the right direction to fix this issue. Thanks in advance