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HI everyone, on last days I was reading some blogs, and doint some proof, and I solved my networks problems on single-host, one NIC, using a dummy network adapter. here my nova.conf and network configurations:

root:~# cat /etc/nova/nova.conf --dhcpbridge_flagfile=/etc/nova/nova.conf --dhcpbridge=/usr/bin/nova-dhcpbridge --logdir=/var/log/nova --state_path=/var/lib/nova --lock_path=/var/lock/nova --verbose --s3_host=192.168.66.1 --rabbit_host=192.168.66.1 --cc_host=192.168.66.1 --network_host=192.168.66.1 --ec2_url=http://192.168.66.1:8773/services/Cloud --fixed_range=192.168.0.0/24 --network_size=65534 --FAKE_subdomain=ec2 --routing_source_ip=188.138.101.59 --verbose --sql_connection=mysql://root:nova@192.168.66.1/nova --network_manager=nova.network.manager.FlatDHCPManager --flat_interface=dummy0 --public_interface=eth0

root:~# ip addr 1: lo: <loopback,up,lower_up> mtu 16436 qdisc noqueue state UNKNOWN link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo inet 169.254.169.254/32 scope link lo inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: <broadcast,multicast,up,lower_up> mtu 1500 qdisc mq state UP qlen 1000 link/ether 00:19:99:9a:9c:04 brd ff:ff:ff:ff:ff:ff inet 188.138.101.59/24 brd 188.138.101.255 scope global eth0 inet 188.138.99.184/32 scope global eth0 inet6 fe80::219:99ff:fe9a:9c04/64 scope link valid_lft forever preferred_lft forever 3: br100: <broadcast,multicast,up,lower_up> mtu 1500 qdisc noqueue state UNKNOWN link/ether 5e:76:28:79:a3:1b brd ff:ff:ff:ff:ff:ff inet 192.168.66.1/24 brd 192.168.66.255 scope global br100 inet 192.168.0.1/25 brd 192.168.0.127 scope global br100 inet6 fe80::484:21ff:fecf:d1ed/64 scope link valid_lft forever preferred_lft forever 4: virbr0: <broadcast,multicast,up,lower_up> mtu 1500 qdisc noqueue state UNKNOWN link/ether 1e:4e:2c:3a:16:f9 brd ff:ff:ff:ff:ff:ff inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0 5: dummy0: <broadcast,noarp,up,lower_up> mtu 1500 qdisc noqueue state UNKNOWN link/ether 5e:76:28:79:a3:1b brd ff:ff:ff:ff:ff:ff inet6 fe80::5c76:28ff:fe79:a31b/64 scope link valid_lft forever preferred_lft forever