im working on packet tracer and now working on my OSPF multi access topology i have 4 areas 0,10,20 and 30. i have given all the router interfaces the ip network 172.20.0.0/27 and in each area there are 4 routers that are connected point to point with a /30 ip mask. inside each area the ospf works only when trying to send packets to other networks it will not work. my configurations are good i have checked multiply times. what can i do to make it all work ??? this is for my collage project.