I followed step by step http://docs.openstack.org/juno/install-guide/install/yum/content/ (http://docs.openstack.org/juno/instal...) Im having

1. Controller
2. Compute
3. Network node

My external net is 192.168.1.0/24. Interface enp5s0 on network node is added to ex-br. I have created a router, which is having assigned IP 192.168.1.67 (external). Virtual local net is 172.0.0.0

I have added a route on compute node to 172.0.0.0 via 192.168.1.67 and now im able to ping 172.0.0.1

But here is the problem comes: If am I creating instance with ext-net - it wont be created. Fails with error 'no valid host found' If Im creating instance with local net only, it goes through, but the IP is not being assigned to machine. In console its all fine:

+--------------------------------------+----------------+--------+------------+-------------+----------------------------------+
| ID                                   | Name           | Status | Task State | Power State | Networks                         |
+--------------------------------------+----------------+--------+------------+-------------+----------------------------------+
| 1f3c5e10-244f-4da6-a4ea-52b3aa76df20 | demo-instance1 | ACTIVE | -          | Running     | demo-net=172.0.0.2, 192.168.1.68 |
+--------------------------------------+----------------+--------+------------+-------------+----------------------------------+

But when I login into VM, there is no any IP assigned. Even if I will add to eth0 IP 172.0.0.2, I'm not able to ping the local gateway

Im a bit frustrated with this issue. I tried to look into logs at network node, and I dont really see any WARNINGs or ERRORs

BTW, all machines are Centos 7, selinux is off. Neutron looks great too:

[root@controller ~]# neutron agent-list

+--------------------------------------+--------------------+--------------------+-------+----------------+---------------------------+
| id                                   | agent_type         | host               | alive | admin_state_up | binary                    |
+--------------------------------------+--------------------+--------------------+-------+----------------+---------------------------+
| 09ac9fa3-083c-48.. | Metadata agent     | node02.localdomain | :-)   | True           | neutron-metadata-agent    |
| 4a4ff3b8-b0b7-49.. | DHCP agent         | node02.localdomain | :-)   | True           | neutron-dhcp-agent        |
| 795e1c54-c958-43.. | Open vSwitch agent | node01.localdomain | :-)   | True           | neutron-openvswitch-agent |
| a42a3cab-8fc4-48.. | L3 agent           | node02.localdomain | :-)   | True           | neutron-l3-agent          |
| f2af8046-0c64-48.. | Open vSwitch agent | node02.localdomain | :-)   | True           | neutron-openvswitch-agent |
+--------------------------------------+--------------------+--------------------+-------+----------------+---------------------------+

I've tried nova-network and it just worked great. But neutron is demanded...