I have a range of network addresses that I would like to summarize into area 0.
router ospf 100
network 10.70.0.0 0.0.255.255 area 70
network 192.168.70.0 0.0.0.3 area 0
network 192.168.70.4 0.0.0.3 area 0
I was thinking I could just summarise the address range saying if you want to get to anything 10.70.0.0 come to me. So I used the command
area 70 range 10.70.0.0 255.255.0.0
My worry here is I learn a lot of routes to 10.0.0.0 networks such as 10.3.0.0, I just want to make sure that my core routers won't send traffic into area 70 when a route to 10.3.0.0 exists.