This article explains network settings for Additional IPs from Hetzner .
The following fields in the Create IP Pool form have to be filled as below:
- Gateway : Use Gateway same as provided by Hetzner.
- Netmask : Use netmask of the IP same as provided by Hetzner.
- Routed : Please check on ‘Use routed network‘ option.
- Adding ip : Add ips along with Mac generated from Hetzner panel.
Note : OpenVZ does not require mac for the ips.