Routing Information Protocol (RIP)

R1

 config terminal
 router rip
 version 2
 network 172.16.1.0
 network 172.16.2.0
 end

R2

 config terminal
 router rip
 version 2
 network 172.16.2.0
 network 192.168.1.0
 end

Test

 show ip route