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OpenStack router can't reach the Controller host

asked 2020-01-02 04:11:26 -0500

Santiago Rodríguez gravatar image

Hi all,

I've installed OS Train in two ubuntu hosts (172.20.37.0/24): Controller and Compute. I've configured a provider network 172.20.38.0/24, a private 10.0.0.0/24 network and a router between them. Finally I've created a instance in the private network assigning it a floating IP.

Using ip netns commands I could see that my router can ping both instances IPs: 10.0.0.X and the floating one, but router can't ping controller host. Of course, I can't reach instance from controller, only through openstack console.

Security group is configured allowing ICMP, SSH and so on.

I suspect that my problem is related with the controller local network and the provider network connection/configuration but I don't know what can be happening.

Any idea? Thx in advance

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answered 2020-01-03 05:36:53 -0500

Do You have any route to 172.20.38/24 from the host from which You are trying to reach this FIP? If You are doing it from the controller node, and if Your router is also on controller node, You can configure e.g. 172.20.38.250/24 (or any other not used yet IP from this subnet) on br-ex (or other external bridge which You have) and it should works than.

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Hi @slaweq, thank you for your response.

Yes, i'm using the controller node for the test, and router is in controller too. No, I don't have any route as you mentioned. I'm using the linux bridge configuration trying the Self Service Network Option (https://docs.openstack.org/neutron/tr...).

I thou

Santiago Rodríguez gravatar imageSantiago Rodríguez ( 2020-01-07 01:47:35 -0500 )edit

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Asked: 2020-01-02 04:11:26 -0500

Seen: 88 times

Last updated: Jan 03