DSL configuration router problem

Hello

I want to know that i try to implement MS exchange server in my organization
i need to know how many thing requited to implement exchange server i have following things
1} Installation server with exchange server
2} Have static IP of my ISP
3}Registered domain in godadday.com and configuration MX record in godadday.com

My question is what configuration required in Dsl router to implement exchange server .My Dsl internet router config default setting it config 192.168.1.1 please tell me what i config to my dsl internet router to implement exchange server tell me step by step

Thanks