A campus network consists of multiple subnets for various departments. Students in the dormitory subnet need to obtain network configuration automatically from a centralized configuration server located in the IT department's subnet. The network engineer's task is to ensure these requests reach the right destination. Which configuration should the engineer apply to the router to facilitate this process?
Activate broadcast forwarding on the router to ensure that all broadcasts reach all subnets within the campus network.
Establish a VLAN access list (VACL) that permits traffic from the dormitory network to the server’s network.
Set the router interface for the dormitory segment to forward requests to the configuration server using an appropriate helper address.
Enable proxy ARP on the dormitory segment’s router interface to allow clients to discover the server across subnets.