Design simple network routing for implementation on Netgear managed switch

We host servers in a secure data centre and need someone to advise how to design and implement a simple network configuration. The data centre provider has given us a /30 network (let's call it [login to view URL]) with default gateway .101 and address for us to use .102 They have also provided us with a /28 range of addresses (let's call it [login to view URL]) which is routed to the 102 address of the /30 network. We need someone to advise us how to configure our Netgear managed switch (with routing, VLAN capabilities etc) so that it can have the [login to view URL] network as its external interface, and allow computers configured on the [login to view URL] range to be attached to the switch and connect to the internet. Computers on the [login to view URL] range will need to have the .33 address as their default gateway. The initial work will be advice and design. Following that we may require further assistance with implementing and testing.