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Floating IP Common Errors

ResourceNotFound: 404: Client Error for url: https://pub1-api.cloud.infomaniak.ch/network/v2.0/floatingips/8e6074e7-d581-4869-ac8c-c6207bd17299, External network a6cf8d3b-92bc-4a84-ade6-e5c6715c1797 is not rea
chable from subnet 04f0e0a0-66c6-40fb-88f5-402097c0afd0.  Therefore, cannot associate Port 64b0655b-d9a7-4712-9b16-1b505b065b89 with a Floating IP.

Your VM is on a Tenant network (Private network) which isn't connected to the Floating IPs network. You must link the two networks with a router first. Here the steps :

  • Create a router
openstack router create myrouter
  • Set the gateway of the router being the floating IPs network with internet connectivity
openstack router set --external-gateway ext-floating1 myrouter
  • Plug your subnet hosting you VM to the router

In our case, our VM my-vm-name is on the subnet mysubnet

taylor@laptop:~$ openstack router add subnet myrouter mysubnet
  • Assign the Floating IP
openstack floating ip set --port 64b0655b-d9a7-4712-9b16-1b505b065b89 195.15.240.213
  • Verify the NAT association
taylor@laptop:~$ openstack floating ip list
+--------------------------------------+---------------------+------------------+--------------------------------------+--------------------------------------+----------------------------------+
| ID                                   | Floating IP Address | Fixed IP Address | Port                                 | Floating Network                     | Project                          |
+--------------------------------------+---------------------+------------------+--------------------------------------+--------------------------------------+----------------------------------+
| 8e6074e7-d581-4869-ac8c-c6207bd17299 | 195.15.240.213      | 10.10.10.127     | 64b0655b-d9a7-4712-9b16-1b505b065b89 | a6cf8d3b-92bc-4a84-ade6-e5c6715c1797 | ac4fafd60021431585bbb23470119557 |
+--------------------------------------+---------------------+------------------+--------------------------------------+--------------------------------------+----------------------------------+
  • You should now be able to ssh your VM

taylor@laptop:~$ ssh debian@195.15.240.213
Linux my-vm-name 4.19.0-14-cloud-amd64 #1 SMP Debian 4.19.171-2 (2021-01-30) x86_64

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Thu Mar 18 11:21:47 2021 from 10.8.2.85
debian@my-vm-name:~$
ℹ Note: check that your security group allows the SSH connection