Starting from NetScaler 13.1, DNS CAA record is supported. You may want to migrate BIND configuration to NetScaler. For example: 

domain.name IN TYPE257 \# 21 00056973737565676C6F62616C7369676E2E636F6D

Instructions

The sample is from a low BIND version that doesn't support `IN CAA` setting. Each field meanings are like below: 

TYPE257 \# 21 00056973737565676C6F62616C7369676E2E636F6D

• TYPE257: Means CAA record. 257 is the Oct value of Hex 0x101, which is CAA type value in DNS defination.
• \#21: The subsequent hex value of data is 21 bytes length.
• 00: CAA flag, 00 means NONE.
• 05: Next part: tag is 5 bytes length.
• 6973737565: tag value: ASCII hex of string "issue"
• 676C6F62616C7369676E2E636F6D: record value. ASCII hex of string "globalsign.com"

Therefore, on NetScaler, we can execute the below command: 

> add dns caaRec domain.name "globalsign.com" -flag NONE -tag "issue"

This article describes the CAA record configuration, which is migrated from low BIND version

Reference: Create CAA records for a domain name