How to configure additional DHCP options
In case you need to configure additional options on your DHCP server you can configure them through UMC.
Logon to the UMC and browse to the Domain -> DHCP module.
Select the DHCP object you would like to configure and select “Edit”:
Go to “Options” and tick “Allow custom DHCP options” which will bring an additional field on the left called “[Advanced Settings]”.
Select these advanced settings and expand on the right:
Enter your setting (here “voip-vlan” and “domain-search”). Add a semicolon “;” at the end and then save:
Now your DHCP server offers the configured options to clients.
You can verify with the tool dhcpdump.