Hi Miguel,

An external network should really be a vlan or flat network that has some 
external gateway in your environment. Although sometimes gre and vxlan network 
types are defined in the external provider network configuration, it's usually 
seen when the external bridge is br-ex (default) and the bridge is not handled 
by OVS (meaning there are no flows). Ultimately, the interface in br-ex handles 
how traffic gets tagged and the provider attributes are ignored.

Hope that helps.

James

Sent from my iPhone

On Jun 9, 2015, at 6:43 AM, Miguel A Diaz Corchero 
<[email protected]<mailto:[email protected]>>
 wrote:

I'm wondering  if it is possible to create multiple external networks mixing 
gre and flat types.

This is the current schema of networks:
internal networks -> gre
em2 -> gre
p3p1 -> flat

These are the configuration files
plugin.ini

[ml2]
type_drivers = gre, flat
...
[ml2_type_flat]
flat_networks = p3p1
...

[ovs]
local_ip = 111.0.0.1
tunnel_type = gre
enable_tunneling = True
network_vlan_ranges = p3p1
bridge_mappings = p3p1:br-ex-p3p1 (only flat ??)

l3_agent.ini
...
gateway_external_network_id =
handle_internal_only_routers = True
external_network_bridge =

After this configuration, only new routers attached to gre external networks 
are not pingable from outside. The instances can ping to router but not outside.

The routers created under flat network work fine.

Any idea to integrate/repair flat and gre external networks together?

Miguel.



--
Miguel Angel D?az Corchero
System Administrator / Researcher
c/ Sola n? 1; 10200 TRUJILLO, SPAIN
Tel: +34 927 65 93 17 Fax: +34 927 32 32 37

<image001.png><http://www.ceta-ciemat.es/>


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