Thank you Rick, it helped alot

Thanks for the reply RichardI'm trying to scan the project, which was given to me as a home work but my scanner is busted.Finally got it working.Thanks in advanced

Thanks for the reply Michael, here is the setting I put it the routers, I think the problem is that I need to define the route between to routers so the PC 3 & PC 4 can communicate with PC 1 & PC 2 R1Interface Fa0/0ip add 192.168.10.1 255.255.255.0 I...