A Secondary IP Set is a set of one or more master name server IP addresses for a secondary DNS domain. When a secondary DNS domain is configured within DNS Made Easy, you must apply a pre-defined secondary IP set to the domain at creation time.
1. Select the Advanced menu and click on “Secondary IP Sets”
![](https://s3.amazonaws.com/cdn.freshdesk.com/data/helpdesk/attachments/production/47036533966/original/9Ha6bvhZD5rztTHquJIE38BoBV1vpYITIQ.png?1599198937)
2. Click the plus sign
Click the plus sign (+) to add a new secondary IP set.
![](https://s3.amazonaws.com/cdn.freshdesk.com/data/helpdesk/attachments/production/47036533984/original/5PqD6SdU6A_A4Zp2uSr0AR8GXxCX5-6lVA.png?1599198954)
3. Configure your IP set
Give the IP Set an identifiable name (A), then Add your master name server IP addresses, one per line (B).
![](https://s3.amazonaws.com/cdn.freshdesk.com/data/helpdesk/attachments/production/47036534004/original/HKt6h5d9KONc1BD97-JiFThYi100O3Q1Rg.png?1599198972)