[Openstack-operators] Problem configuring a second external network

Davíð Örn Jóhannsson davidoj at siminn.is
Thu Nov 12 16:39:38 UTC 2015

We have an external network (Internet) working and are trying to configure an additional external network (Intranet)

>From the network nodes we can ping the gateway of the of the Intra network as well as a router created on the external network.

However the instances on the private OpenStack network can not contact either the gateway nor the router and if I trace the ip of the intra router the third hop is the Internet GW (default GW on the network nodes)

Neutron Network node routes                    UG    0      0        0 br-ex-internet       U     0      0        0 br-ex-internet   UG    0      0        0 br-ex-intranet       U     0      0        0 br-ex-intranet

Instance routes
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface             UG    0      0        0 eth0   U     0      0        0 eth0?

Both external networks have routers with configured interfaces on the private network.

Any ideas what I could be missing?
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