I have a compute instance I want to run as firewall/router (pfsense). pfsense works, is connected with 1 interface to public internet and with 1 interface to a private network. Two other compute instances are connected to that private network. That private network is on neutron with linux bridges, it has 1 subnet without gateway and without dhcp. See image here: http://i.imgur.com/mQK9EUI.png - however, pfsense does not see the LAN link as up and the arp table is empty and the other two (debian) machines don't see each other or the pfsense instance (arp, or broadcast ping). tcpdump also shows no traffic from or to the other vm's. Security groups are on allow all everywhere. Any tips/help?