Is it possible to use Openstack Linux instance as router ?

Issue

• Trying to link two private networks internal10 and internal11 within the same tenant through an instance internal1-instance, which is having two ports: one on each network but it's not working. Here only internal10 is added as router port, internal11 is an isolated network.

external network --- internal1-instance --- internal10 [eth0] , internal11 [eth1] --- internal2-instance

• Is it possible to use Red Hat Linux instance as a router ?