Ask Your Question

Networking Issues With Kolla-anisble deployment

asked 2018-09-21 08:03:11 -0500

James Grow gravatar image

updated 2018-09-21 08:06:07 -0500

Hello, I am having a problem accessing horizon in my Kolla deployed openstack cloud. I have a /26 netmask on the network assigned to kolla_external_vip_address, but Kolla defaults to using /32 for that network. I haven't been able to find any documentation on how to define networks in Kolla, and since it is using the /32 network I can't get in to the horizon dashboard. Is there a reason why Kolla makes the netmask /32 and how can I add a route so that I can access horizon if that network if it isn't even recognized?

edit retag flag offensive close merge delete

3 answers

Sort by » oldest newest most voted

answered 2018-10-09 10:24:10 -0500

James Grow gravatar image

I changed up some things in the deployment, made a few changes with the VLANs in the switch and I got everything working. Thanks for the replies.

edit flag offensive delete link more


what changes did you do, can you pleasse explain,1. with switches? 2 with deployment?

Syed003 gravatar imageSyed003 ( 2020-08-20 12:58:26 -0500 )edit

answered 2018-09-21 09:22:41 -0500

bjoernh gravatar image


the kolla_external_vip_address is a so called floating IP that changes hosts should the "active" one go down. Such IPs are usually assigned with a netmask of /32. There may actually be another reason why you're unable to access your dashboard. Did you assign the IP to the correct interface, such that it is reachable? Do you have a separate network_interface? Are you doing an all-in-one or multihost deployment.

Best regards, Björn

edit flag offensive delete link more

answered 2018-09-25 09:27:37 -0500

You should only indicate an address without netmask, as it is named kolla_external_vip_address, (vip = virtual IP), so nothing strange here. Check you have enabled haproxy (it is by default) to have it work correctly.

Just use a free IP on the external network you want to access horizon, no need to use a netmask.

edit flag offensive delete link more

Get to know Ask OpenStack

Resources for moderators

Question Tools

1 follower


Asked: 2018-09-21 08:03:11 -0500

Seen: 426 times

Last updated: Oct 09 '18