If you se the interface to:
* Auto-assign means that MAAS will provide IP addresses and e/n/i will be written for the specific interface with the auto-asigned IP address.
* DHCP means that you can use a external DHCP server.
That being said, the solution to your issue is to change the interfaces to DHCP in order for you to use the external DHCP server.
Agreed with Blake here.
If you se the interface to:
* Auto-assign means that MAAS will provide IP addresses and e/n/i will be written for the specific interface with the auto-asigned IP address.
* DHCP means that you can use a external DHCP server.
That being said, the solution to your issue is to change the interfaces to DHCP in order for you to use the external DHCP server.