Internet Access

Our Netware 6 server installed with two NIC cards. The NIC card with a public IP address connected to the router and the second NIC with a private IP address connected to the hub.
Is there any way to config the server as a router so that the workstations configured with a private IP address ( on same subnet with the private NIC card. The workstations are connected to the same hub) can access the internet?

Thank you very much for your help.