The configuration for IP-based restrictions is found on Step 1 of the Partnership settings: Configure Partnership.
On the bottom of this menu, you will see IP Restrictions, and you can click the arrow on the left to drop this menu down. There, click "Add Row", which will load a row that can be manipulated to select desired settings. This will be:
- Single Host
- Subnet Mask
- Host Name
Whichever is selected will activate its corresponding box, and the value can be entered accordingly. To add multiple different criteria, simply add more rows.