When a client signs up to a dedicated server plan, he receives a server with only one IP address. If allowed by the plan, he can always request additional IPs from his control panel. Clients' requests for additional IPs are received by the trouble ticket system.
IP ranges can be assigned only to dedicated servers which are In use. To assign/unassign IP ranges, perform the following steps:
Set prices for Dedicated Server IP Range resource in your dedicated server plans. Allow number of free IPs and set monthly fee per one IP.
Start IP - the IP next to the subnet broadcast address
End IP - the IP preceding the subnet gateway address
Network mask - a 32-bit number (e.g. 255.255.255.0) or a slash standard number (e.g. 24).
The newly added IP subnet appears on the Dedicated servers IP pool page (see above).
You come back to the Defined IP ranges page where you can further split the ranges by clicking red arrows (the Split icon). You can also merge the corresponding ranges by clicking green arrows (the Merge icon):
PTR zone is needed to store future reverse DNS records users will create for their IPs.
To create PTR zone, go Dedicated Servers -> IP Pool and click the Edit icon opposite the needed subnet and then click Create PTR DNS zone:
Now it should appear on this IP subnet page:
This will allow owner of dedicated server to which IP range from this subnet will be assigned to create PTR record for each IP from this range.
Important: Setting up reverse DNS records is implemented only for class C network IPs.
Click Assigned to edit the dedicated server of the newly assigned range. By clicking the Lens icon, you can see the server info and the comment you've just added:
Important: When assigning/unassigning IP ranges from the control panel, don't forget to effect these changes on the physical level.