How do I create a spark hub for my school to administrate the spark board?

Good Evening,I have been struggling with this configuration for two weeks, and would appreciate any help!Hardware:3750 Core Switch (with 12 fiber ports) (172.16.8.1 255.255.248.0) GW = ASAASA 5510 (172.16.6.52 255.255.248.0) int  (212.11.173.108 255....