rdo public subnet through single interface

asked 2017-06-24 13:03:34 -0600

Mimi gravatar image

updated 2017-06-26 12:43:05 -0600

rbowen gravatar image

Dears, I have configured the server (which have one nic) with rdo as singe node. I have tried all options and really can not solve it on?! The physical nic is a part of my ovs switch (br-ex) as documented (my server public ip is on the ovs switch config and the nic is a port on ovs). I have a public subnet which are statically routed to my server public ip address. I trying to set this through openstack and make available the subnet for instances but something Im doing wrong. According to the documentation from the server provider I need to set a bridge which will serve as a gateway for my instances...

How it is possible to have access to this gateway through openstack network subnet (which instead is my public subnet)

Can anybody help me on this...

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answered 2017-06-26 13:03:50 -0600

Can you please post the output of "#openstack network show {your public network name}"

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answered 2017-06-27 17:22:58 -0600

Mimi gravatar image

updated 2017-06-27 17:39:04 -0600

Hi akisakye,

I managed somehow to have host <-> guest network connection (ping instances from host and vice versa) but still can not propagate the internet. I have created the pubic network as flat and managed to access my br-ex pub ip (ovs gw) using the vm instances . Here is what I have done till now.

host nic pub ip: x.xy.9.244/32
br-ex (ovs) pub ip:x.xy.28.25/29
instances pub ip range:x.xy.28.26-30 -> gw ovs pub ip
default gw dev host nic:x.xy.9.193

What is strange, I can ping from the internet my br-ex pub ip but can not ping instances. There is no security group issue since I have put any any bidirectional.

I can't use switch "--os-neutron-ovs-bridge-interfaces=br-ex:enp0s31f6" its kind of https://www.rdoproject.org/networking/neutron-with-existing-external-network/ (bug) and also I can not add to the ovs the host ip and the port nic since Im using the ovs br-ex as gateway for my pub subnet.

It seams that the ovs is not aware for my host physical interface or... can be a route issue (all the routes are directly connected).

Thanks in advance,

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Asked: 2017-06-24 12:50:54 -0600

Seen: 186 times

Last updated: Jun 27 '17