I'm able to create the the VM instance(its status is showing running) but I'm not able to associate the floating IP to this VM instance.

I have configured 3 nodes (Controller, Compute and Network) following the falcom installation doc. Then I tried to create VM using extnet in horizon dashboard. I'm also able to create the floatingip for extnet, But unable the associate the ip with the instance. While creating the VM it is taking the IP from the extnet pool only (7.7.7.134) but is not pingable.

The /etc/network/interfaces files are following.

For Controller Node

Management Network

auto eth0
iface eth0 inet static
address 10.141.67.32        --> This is our ethernet IP
netmask 255.255.255.0
gateway 10.141.67.1
dns-nameservers 10.141.1.100

API + Public Network

auto eth1
iface eth1 inet static
address 7.7.7.7
netmask 255.255.255.0
gateway 7.7.7.1
dns-nameservers 10.141.1.100    --> Tried with 8.8.8.8 as suggested in the Document.

For network Node Management

auto eth0
iface eth0 inet static
address 10.141.67.34
netmask 255.255.255.0
gateway 10.141.67.1
dns-nameservers 10.141.1.100

Data Network

auto eth1
iface eth1 inet static
address 10.10.10.1
netmask 255.255.255.0

Public Bridge

auto eth2
iface eth2 inet manual
up ifconfig $IFACE 0.0.0.0 up
up ip link set $IFACE prom

For compute Node

Management Network

auto eth0
iface eth0 inet static
address 10.141.67.35
netmask 255.255.255.0
gateway 10.141.67.1
dns-nameservers 10.141.1.100

Data Network

auto eth1
iface eth1 inet static
address 10.10.10.2
netmask 255.255.255.0

Kindly let me know if I'm missing anything.