IP adresses scheam for a network

My company is in the process of setting up co-location to host production servers. the hosting location assigned 2 IPs for us. the first one is VLAN Uplink, 64.209.230.248/30. the other one is
64.209.230.248/25 and that for colocation behind firewall. the colocation consist of router, firewall, 2web servers, 1 mail server and a SQL server. now I am not sure how that is going to work. is the uplink IP is going to be assigned to the router and what the subnet will be exactly and how do I subnet the other IP. thank you