How to configure or what is the commands used in ISP router?

we are given 6 routers to be configured. the 3 routers are configured using EIGRP and RIPv2 while the other 2 for network 2 will be configured using OSPF…my problem is that i dont know what would be the appropriate action on configuring the ISP router so that the network 1 can send to network 2 and vice-versa