@filippo_carletti, @davidep, @Andy_Wismer: In more OVH (millions customers), I see same for DigitalOcean, Scaleway:
DigitalOcean:
- Reserved IP Support :: DigitalOcean Documentation
- How to Send Outbound Traffic Over a Reserved IP :: DigitalOcean Documentation
- How to Manually Enable Reserved IPs :: DigitalOcean Documentation
Scaleway:
- Failover IP Documentation
- Failover IP - Quickstart
- How to configure a failover IP on CentOS
- How to configure the network of a virtual machine
Etc.
Can you add the feature directly in the main code?