1. Open the DHCP mmc 2. Expand DHCP, select DHCP server name. 3. Right Click IPv4 4. Select "Set Predefined Options" 5. Click Add. A new window appears 6. Enter the following: Name: "Domain suffix search order" (without quotation marks) Data Type: String Code: "135" (without the quotation marks) Description: "List of domain suffixes in order" (without the quotation marks) String: Enter search suffixes separated by comma with no spaces 7. Click OK. 8. Close DHCP MMC and restart DHCP Server Service.
Now, re-open the DHCP mmc, scroll to the end of the DHCP options, and the newly created option will appear.